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Diffstat (limited to 'hw')
-rw-r--r--hw/Kconfig1
-rw-r--r--hw/arm/virt.c356
-rw-r--r--hw/core/guest-loader.c145
-rw-r--r--hw/core/guest-loader.h34
-rw-r--r--hw/core/meson.build2
-rw-r--r--hw/meson.build1
-rw-r--r--hw/mips/malta.c2
-rw-r--r--hw/riscv/virt.c20
-rw-r--r--hw/semihosting/Kconfig7
-rw-r--r--hw/semihosting/arm-compat-semi.c1306
-rw-r--r--hw/semihosting/common-semi.h39
-rw-r--r--hw/semihosting/config.c187
-rw-r--r--hw/semihosting/console.c180
-rw-r--r--hw/semihosting/meson.build7
14 files changed, 377 insertions, 1910 deletions
diff --git a/hw/Kconfig b/hw/Kconfig
index 8ea26479c4..ff40bd3f7b 100644
--- a/hw/Kconfig
+++ b/hw/Kconfig
@@ -31,7 +31,6 @@ source remote/Kconfig
source rtc/Kconfig
source scsi/Kconfig
source sd/Kconfig
-source semihosting/Kconfig
source smbios/Kconfig
source ssi/Kconfig
source timer/Kconfig
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 371147f3ae..c08bf11297 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -218,14 +218,14 @@ static bool cpu_type_valid(const char *cpu)
return false;
}
-static void create_kaslr_seed(VirtMachineState *vms, const char *node)
+static void create_kaslr_seed(MachineState *ms, const char *node)
{
uint64_t seed;
if (qemu_guest_getrandom(&seed, sizeof(seed), NULL)) {
return;
}
- qemu_fdt_setprop_u64(vms->fdt, node, "kaslr-seed", seed);
+ qemu_fdt_setprop_u64(ms->fdt, node, "kaslr-seed", seed);
}
static void create_fdt(VirtMachineState *vms)
@@ -239,7 +239,7 @@ static void create_fdt(VirtMachineState *vms)
exit(1);
}
- vms->fdt = fdt;
+ ms->fdt = fdt;
/* Header */
qemu_fdt_setprop_string(fdt, "/", "compatible", "linux,dummy-virt");
@@ -248,11 +248,11 @@ static void create_fdt(VirtMachineState *vms)
/* /chosen must exist for load_dtb to fill in necessary properties later */
qemu_fdt_add_subnode(fdt, "/chosen");
- create_kaslr_seed(vms, "/chosen");
+ create_kaslr_seed(ms, "/chosen");
if (vms->secure) {
qemu_fdt_add_subnode(fdt, "/secure-chosen");
- create_kaslr_seed(vms, "/secure-chosen");
+ create_kaslr_seed(ms, "/secure-chosen");
}
/* Clock node, for the benefit of the UART. The kernel device tree
@@ -316,6 +316,7 @@ static void fdt_add_timer_nodes(const VirtMachineState *vms)
ARMCPU *armcpu;
VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms);
uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI;
+ MachineState *ms = MACHINE(vms);
if (vmc->claim_edge_triggered_timers) {
irqflags = GIC_FDT_IRQ_FLAGS_EDGE_LO_HI;
@@ -327,19 +328,19 @@ static void fdt_add_timer_nodes(const VirtMachineState *vms)
(1 << MACHINE(vms)->smp.cpus) - 1);
}
- qemu_fdt_add_subnode(vms->fdt, "/timer");
+ qemu_fdt_add_subnode(ms->fdt, "/timer");
armcpu = ARM_CPU(qemu_get_cpu(0));
if (arm_feature(&armcpu->env, ARM_FEATURE_V8)) {
const char compat[] = "arm,armv8-timer\0arm,armv7-timer";
- qemu_fdt_setprop(vms->fdt, "/timer", "compatible",
+ qemu_fdt_setprop(ms->fdt, "/timer", "compatible",
compat, sizeof(compat));
} else {
- qemu_fdt_setprop_string(vms->fdt, "/timer", "compatible",
+ qemu_fdt_setprop_string(ms->fdt, "/timer", "compatible",
"arm,armv7-timer");
}
- qemu_fdt_setprop(vms->fdt, "/timer", "always-on", NULL, 0);
- qemu_fdt_setprop_cells(vms->fdt, "/timer", "interrupts",
+ qemu_fdt_setprop(ms->fdt, "/timer", "always-on", NULL, 0);
+ qemu_fdt_setprop_cells(ms->fdt, "/timer", "interrupts",
GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_S_EL1_IRQ, irqflags,
GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_NS_EL1_IRQ, irqflags,
GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_VIRT_IRQ, irqflags,
@@ -375,35 +376,35 @@ static void fdt_add_cpu_nodes(const VirtMachineState *vms)
}
}
- qemu_fdt_add_subnode(vms->fdt, "/cpus");
- qemu_fdt_setprop_cell(vms->fdt, "/cpus", "#address-cells", addr_cells);
- qemu_fdt_setprop_cell(vms->fdt, "/cpus", "#size-cells", 0x0);
+ qemu_fdt_add_subnode(ms->fdt, "/cpus");
+ qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", addr_cells);
+ qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0);
for (cpu = smp_cpus - 1; cpu >= 0; cpu--) {
char *nodename = g_strdup_printf("/cpus/cpu@%d", cpu);
ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(cpu));
CPUState *cs = CPU(armcpu);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_string(vms->fdt, nodename, "device_type", "cpu");
- qemu_fdt_setprop_string(vms->fdt, nodename, "compatible",
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "cpu");
+ qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
armcpu->dtb_compatible);
if (vms->psci_conduit != QEMU_PSCI_CONDUIT_DISABLED && smp_cpus > 1) {
- qemu_fdt_setprop_string(vms->fdt, nodename,
+ qemu_fdt_setprop_string(ms->fdt, nodename,
"enable-method", "psci");
}
if (addr_cells == 2) {
- qemu_fdt_setprop_u64(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop_u64(ms->fdt, nodename, "reg",
armcpu->mp_affinity);
} else {
- qemu_fdt_setprop_cell(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "reg",
armcpu->mp_affinity);
}
if (ms->possible_cpus->cpus[cs->cpu_index].props.has_node_id) {
- qemu_fdt_setprop_cell(vms->fdt, nodename, "numa-node-id",
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id",
ms->possible_cpus->cpus[cs->cpu_index].props.node_id);
}
@@ -414,71 +415,74 @@ static void fdt_add_cpu_nodes(const VirtMachineState *vms)
static void fdt_add_its_gic_node(VirtMachineState *vms)
{
char *nodename;
+ MachineState *ms = MACHINE(vms);
- vms->msi_phandle = qemu_fdt_alloc_phandle(vms->fdt);
+ vms->msi_phandle = qemu_fdt_alloc_phandle(ms->fdt);
nodename = g_strdup_printf("/intc/its@%" PRIx64,
vms->memmap[VIRT_GIC_ITS].base);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_string(vms->fdt, nodename, "compatible",
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
"arm,gic-v3-its");
- qemu_fdt_setprop(vms->fdt, nodename, "msi-controller", NULL, 0);
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop(ms->fdt, nodename, "msi-controller", NULL, 0);
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, vms->memmap[VIRT_GIC_ITS].base,
2, vms->memmap[VIRT_GIC_ITS].size);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "phandle", vms->msi_phandle);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->msi_phandle);
g_free(nodename);
}
static void fdt_add_v2m_gic_node(VirtMachineState *vms)
{
+ MachineState *ms = MACHINE(vms);
char *nodename;
nodename = g_strdup_printf("/intc/v2m@%" PRIx64,
vms->memmap[VIRT_GIC_V2M].base);
- vms->msi_phandle = qemu_fdt_alloc_phandle(vms->fdt);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_string(vms->fdt, nodename, "compatible",
+ vms->msi_phandle = qemu_fdt_alloc_phandle(ms->fdt);
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
"arm,gic-v2m-frame");
- qemu_fdt_setprop(vms->fdt, nodename, "msi-controller", NULL, 0);
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop(ms->fdt, nodename, "msi-controller", NULL, 0);
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, vms->memmap[VIRT_GIC_V2M].base,
2, vms->memmap[VIRT_GIC_V2M].size);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "phandle", vms->msi_phandle);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->msi_phandle);
g_free(nodename);
}
static void fdt_add_gic_node(VirtMachineState *vms)
{
+ MachineState *ms = MACHINE(vms);
char *nodename;
- vms->gic_phandle = qemu_fdt_alloc_phandle(vms->fdt);
- qemu_fdt_setprop_cell(vms->fdt, "/", "interrupt-parent", vms->gic_phandle);
+ vms->gic_phandle = qemu_fdt_alloc_phandle(ms->fdt);
+ qemu_fdt_setprop_cell(ms->fdt, "/", "interrupt-parent", vms->gic_phandle);
nodename = g_strdup_printf("/intc@%" PRIx64,
vms->memmap[VIRT_GIC_DIST].base);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "#interrupt-cells", 3);
- qemu_fdt_setprop(vms->fdt, nodename, "interrupt-controller", NULL, 0);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "#address-cells", 0x2);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "#size-cells", 0x2);
- qemu_fdt_setprop(vms->fdt, nodename, "ranges", NULL, 0);
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 3);
+ qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 0x2);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 0x2);
+ qemu_fdt_setprop(ms->fdt, nodename, "ranges", NULL, 0);
if (vms->gic_version == VIRT_GIC_VERSION_3) {
int nb_redist_regions = virt_gicv3_redist_region_count(vms);
- qemu_fdt_setprop_string(vms->fdt, nodename, "compatible",
+ qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
"arm,gic-v3");
- qemu_fdt_setprop_cell(vms->fdt, nodename,
+ qemu_fdt_setprop_cell(ms->fdt, nodename,
"#redistributor-regions", nb_redist_regions);
if (nb_redist_regions == 1) {
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, vms->memmap[VIRT_GIC_DIST].base,
2, vms->memmap[VIRT_GIC_DIST].size,
2, vms->memmap[VIRT_GIC_REDIST].base,
2, vms->memmap[VIRT_GIC_REDIST].size);
} else {
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, vms->memmap[VIRT_GIC_DIST].base,
2, vms->memmap[VIRT_GIC_DIST].size,
2, vms->memmap[VIRT_GIC_REDIST].base,
@@ -488,22 +492,22 @@ static void fdt_add_gic_node(VirtMachineState *vms)
}
if (vms->virt) {
- qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts",
+ qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts",
GIC_FDT_IRQ_TYPE_PPI, ARCH_GIC_MAINT_IRQ,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
}
} else {
/* 'cortex-a15-gic' means 'GIC v2' */
- qemu_fdt_setprop_string(vms->fdt, nodename, "compatible",
+ qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
"arm,cortex-a15-gic");
if (!vms->virt) {
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, vms->memmap[VIRT_GIC_DIST].base,
2, vms->memmap[VIRT_GIC_DIST].size,
2, vms->memmap[VIRT_GIC_CPU].base,
2, vms->memmap[VIRT_GIC_CPU].size);
} else {
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, vms->memmap[VIRT_GIC_DIST].base,
2, vms->memmap[VIRT_GIC_DIST].size,
2, vms->memmap[VIRT_GIC_CPU].base,
@@ -512,13 +516,13 @@ static void fdt_add_gic_node(VirtMachineState *vms)
2, vms->memmap[VIRT_GIC_HYP].size,
2, vms->memmap[VIRT_GIC_VCPU].base,
2, vms->memmap[VIRT_GIC_VCPU].size);
- qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts",
+ qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts",
GIC_FDT_IRQ_TYPE_PPI, ARCH_GIC_MAINT_IRQ,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
}
}
- qemu_fdt_setprop_cell(vms->fdt, nodename, "phandle", vms->gic_phandle);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->gic_phandle);
g_free(nodename);
}
@@ -526,6 +530,7 @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms)
{
ARMCPU *armcpu = ARM_CPU(first_cpu);
uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI;
+ MachineState *ms = MACHINE(vms);
if (!arm_feature(&armcpu->env, ARM_FEATURE_PMU)) {
assert(!object_property_get_bool(OBJECT(armcpu), "pmu", NULL));
@@ -538,12 +543,12 @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms)
(1 << MACHINE(vms)->smp.cpus) - 1);
}
- qemu_fdt_add_subnode(vms->fdt, "/pmu");
+ qemu_fdt_add_subnode(ms->fdt, "/pmu");
if (arm_feature(&armcpu->env, ARM_FEATURE_V8)) {
const char compat[] = "arm,armv8-pmuv3";
- qemu_fdt_setprop(vms->fdt, "/pmu", "compatible",
+ qemu_fdt_setprop(ms->fdt, "/pmu", "compatible",
compat, sizeof(compat));
- qemu_fdt_setprop_cells(vms->fdt, "/pmu", "interrupts",
+ qemu_fdt_setprop_cells(ms->fdt, "/pmu", "interrupts",
GIC_FDT_IRQ_TYPE_PPI, VIRTUAL_PMU_IRQ, irqflags);
}
}
@@ -749,6 +754,7 @@ static void create_uart(const VirtMachineState *vms, int uart,
const char clocknames[] = "uartclk\0apb_pclk";
DeviceState *dev = qdev_new(TYPE_PL011);
SysBusDevice *s = SYS_BUS_DEVICE(dev);
+ MachineState *ms = MACHINE(vms);
qdev_prop_set_chr(dev, "chardev", chr);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
@@ -757,28 +763,28 @@ static void create_uart(const VirtMachineState *vms, int uart,
sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq));
nodename = g_strdup_printf("/pl011@%" PRIx64, base);
- qemu_fdt_add_subnode(vms->fdt, nodename);
+ qemu_fdt_add_subnode(ms->fdt, nodename);
/* Note that we can't use setprop_string because of the embedded NUL */
- qemu_fdt_setprop(vms->fdt, nodename, "compatible",
+ qemu_fdt_setprop(ms->fdt, nodename, "compatible",
compat, sizeof(compat));
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, base, 2, size);
- qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts",
+ qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, irq,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
- qemu_fdt_setprop_cells(vms->fdt, nodename, "clocks",
+ qemu_fdt_setprop_cells(ms->fdt, nodename, "clocks",
vms->clock_phandle, vms->clock_phandle);
- qemu_fdt_setprop(vms->fdt, nodename, "clock-names",
+ qemu_fdt_setprop(ms->fdt, nodename, "clock-names",
clocknames, sizeof(clocknames));
if (uart == VIRT_UART) {
- qemu_fdt_setprop_string(vms->fdt, "/chosen", "stdout-path", nodename);
+ qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename);
} else {
/* Mark as not usable by the normal world */
- qemu_fdt_setprop_string(vms->fdt, nodename, "status", "disabled");
- qemu_fdt_setprop_string(vms->fdt, nodename, "secure-status", "okay");
+ qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled");
+ qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay");
- qemu_fdt_setprop_string(vms->fdt, "/secure-chosen", "stdout-path",
+ qemu_fdt_setprop_string(ms->fdt, "/secure-chosen", "stdout-path",
nodename);
}
@@ -792,19 +798,20 @@ static void create_rtc(const VirtMachineState *vms)
hwaddr size = vms->memmap[VIRT_RTC].size;
int irq = vms->irqmap[VIRT_RTC];
const char compat[] = "arm,pl031\0arm,primecell";
+ MachineState *ms = MACHINE(vms);
sysbus_create_simple("pl031", base, qdev_get_gpio_in(vms->gic, irq));
nodename = g_strdup_printf("/pl031@%" PRIx64, base);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop(vms->fdt, nodename, "compatible", compat, sizeof(compat));
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop(ms->fdt, nodename, "compatible", compat, sizeof(compat));
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, base, 2, size);
- qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts",
+ qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, irq,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "clocks", vms->clock_phandle);
- qemu_fdt_setprop_string(vms->fdt, nodename, "clock-names", "apb_pclk");
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "clocks", vms->clock_phandle);
+ qemu_fdt_setprop_string(ms->fdt, nodename, "clock-names", "apb_pclk");
g_free(nodename);
}
@@ -821,32 +828,30 @@ static void virt_powerdown_req(Notifier *n, void *opaque)
}
}
-static void create_gpio_keys(const VirtMachineState *vms,
- DeviceState *pl061_dev,
+static void create_gpio_keys(char *fdt, DeviceState *pl061_dev,
uint32_t phandle)
{
gpio_key_dev = sysbus_create_simple("gpio-key", -1,
qdev_get_gpio_in(pl061_dev, 3));
- qemu_fdt_add_subnode(vms->fdt, "/gpio-keys");
- qemu_fdt_setprop_string(vms->fdt, "/gpio-keys", "compatible", "gpio-keys");
- qemu_fdt_setprop_cell(vms->fdt, "/gpio-keys", "#size-cells", 0);
- qemu_fdt_setprop_cell(vms->fdt, "/gpio-keys", "#address-cells", 1);
+ qemu_fdt_add_subnode(fdt, "/gpio-keys");
+ qemu_fdt_setprop_string(fdt, "/gpio-keys", "compatible", "gpio-keys");
+ qemu_fdt_setprop_cell(fdt, "/gpio-keys", "#size-cells", 0);
+ qemu_fdt_setprop_cell(fdt, "/gpio-keys", "#address-cells", 1);
- qemu_fdt_add_subnode(vms->fdt, "/gpio-keys/poweroff");
- qemu_fdt_setprop_string(vms->fdt, "/gpio-keys/poweroff",
+ qemu_fdt_add_subnode(fdt, "/gpio-keys/poweroff");
+ qemu_fdt_setprop_string(fdt, "/gpio-keys/poweroff",
"label", "GPIO Key Poweroff");
- qemu_fdt_setprop_cell(vms->fdt, "/gpio-keys/poweroff", "linux,code",
+ qemu_fdt_setprop_cell(fdt, "/gpio-keys/poweroff", "linux,code",
KEY_POWER);
- qemu_fdt_setprop_cells(vms->fdt, "/gpio-keys/poweroff",
+ qemu_fdt_setprop_cells(fdt, "/gpio-keys/poweroff",
"gpios", phandle, 3, 0);
}
#define SECURE_GPIO_POWEROFF 0
#define SECURE_GPIO_RESET 1
-static void create_secure_gpio_pwr(const VirtMachineState *vms,
- DeviceState *pl061_dev,
+static void create_secure_gpio_pwr(char *fdt, DeviceState *pl061_dev,
uint32_t phandle)
{
DeviceState *gpio_pwr_dev;
@@ -860,22 +865,22 @@ static void create_secure_gpio_pwr(const VirtMachineState *vms,
qdev_connect_gpio_out(pl061_dev, SECURE_GPIO_POWEROFF,
qdev_get_gpio_in_named(gpio_pwr_dev, "shutdown", 0));
- qemu_fdt_add_subnode(vms->fdt, "/gpio-poweroff");
- qemu_fdt_setprop_string(vms->fdt, "/gpio-poweroff", "compatible",
+ qemu_fdt_add_subnode(fdt, "/gpio-poweroff");
+ qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "compatible",
"gpio-poweroff");
- qemu_fdt_setprop_cells(vms->fdt, "/gpio-poweroff",
+ qemu_fdt_setprop_cells(fdt, "/gpio-poweroff",
"gpios", phandle, SECURE_GPIO_POWEROFF, 0);
- qemu_fdt_setprop_string(vms->fdt, "/gpio-poweroff", "status", "disabled");
- qemu_fdt_setprop_string(vms->fdt, "/gpio-poweroff", "secure-status",
+ qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "status", "disabled");
+ qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "secure-status",
"okay");
- qemu_fdt_add_subnode(vms->fdt, "/gpio-restart");
- qemu_fdt_setprop_string(vms->fdt, "/gpio-restart", "compatible",
+ qemu_fdt_add_subnode(fdt, "/gpio-restart");
+ qemu_fdt_setprop_string(fdt, "/gpio-restart", "compatible",
"gpio-restart");
- qemu_fdt_setprop_cells(vms->fdt, "/gpio-restart",
+ qemu_fdt_setprop_cells(fdt, "/gpio-restart",
"gpios", phandle, SECURE_GPIO_RESET, 0);
- qemu_fdt_setprop_string(vms->fdt, "/gpio-restart", "status", "disabled");
- qemu_fdt_setprop_string(vms->fdt, "/gpio-restart", "secure-status",
+ qemu_fdt_setprop_string(fdt, "/gpio-restart", "status", "disabled");
+ qemu_fdt_setprop_string(fdt, "/gpio-restart", "secure-status",
"okay");
}
@@ -889,6 +894,7 @@ static void create_gpio_devices(const VirtMachineState *vms, int gpio,
int irq = vms->irqmap[gpio];
const char compat[] = "arm,pl061\0arm,primecell";
SysBusDevice *s;
+ MachineState *ms = MACHINE(vms);
pl061_dev = qdev_new("pl061");
s = SYS_BUS_DEVICE(pl061_dev);
@@ -896,33 +902,33 @@ static void create_gpio_devices(const VirtMachineState *vms, int gpio,
memory_region_add_subregion(mem, base, sysbus_mmio_get_region(s, 0));
sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq));
- uint32_t phandle = qemu_fdt_alloc_phandle(vms->fdt);
+ uint32_t phandle = qemu_fdt_alloc_phandle(ms->fdt);
nodename = g_strdup_printf("/pl061@%" PRIx64, base);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, base, 2, size);
- qemu_fdt_setprop(vms->fdt, nodename, "compatible", compat, sizeof(compat));
- qemu_fdt_setprop_cell(vms->fdt, nodename, "#gpio-cells", 2);
- qemu_fdt_setprop(vms->fdt, nodename, "gpio-controller", NULL, 0);
- qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts",
+ qemu_fdt_setprop(ms->fdt, nodename, "compatible", compat, sizeof(compat));
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "#gpio-cells", 2);
+ qemu_fdt_setprop(ms->fdt, nodename, "gpio-controller", NULL, 0);
+ qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, irq,
GIC_FDT_IRQ_FLAGS_LEVEL_HI);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "clocks", vms->clock_phandle);
- qemu_fdt_setprop_string(vms->fdt, nodename, "clock-names", "apb_pclk");
- qemu_fdt_setprop_cell(vms->fdt, nodename, "phandle", phandle);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "clocks", vms->clock_phandle);
+ qemu_fdt_setprop_string(ms->fdt, nodename, "clock-names", "apb_pclk");
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", phandle);
if (gpio != VIRT_GPIO) {
/* Mark as not usable by the normal world */
- qemu_fdt_setprop_string(vms->fdt, nodename, "status", "disabled");
- qemu_fdt_setprop_string(vms->fdt, nodename, "secure-status", "okay");
+ qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled");
+ qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay");
}
g_free(nodename);
/* Child gpio devices */
if (gpio == VIRT_GPIO) {
- create_gpio_keys(vms, pl061_dev, phandle);
+ create_gpio_keys(ms->fdt, pl061_dev, phandle);
} else {
- create_secure_gpio_pwr(vms, pl061_dev, phandle);
+ create_secure_gpio_pwr(ms->fdt, pl061_dev, phandle);
}
}
@@ -930,6 +936,7 @@ static void create_virtio_devices(const VirtMachineState *vms)
{
int i;
hwaddr size = vms->memmap[VIRT_MMIO].size;
+ MachineState *ms = MACHINE(vms);
/* We create the transports in forwards order. Since qbus_realize()
* prepends (not appends) new child buses, the incrementing loop below will
@@ -979,15 +986,15 @@ static void create_virtio_devices(const VirtMachineState *vms)
hwaddr base = vms->memmap[VIRT_MMIO].base + i * size;
nodename = g_strdup_printf("/virtio_mmio@%" PRIx64, base);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_string(vms->fdt, nodename,
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_string(ms->fdt, nodename,
"compatible", "virtio,mmio");
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, base, 2, size);
- qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts",
+ qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, irq,
GIC_FDT_IRQ_FLAGS_EDGE_LO_HI);
- qemu_fdt_setprop(vms->fdt, nodename, "dma-coherent", NULL, 0);
+ qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0);
g_free(nodename);
}
}
@@ -1068,17 +1075,18 @@ static void virt_flash_fdt(VirtMachineState *vms,
{
hwaddr flashsize = vms->memmap[VIRT_FLASH].size / 2;
hwaddr flashbase = vms->memmap[VIRT_FLASH].base;
+ MachineState *ms = MACHINE(vms);
char *nodename;
if (sysmem == secure_sysmem) {
/* Report both flash devices as a single node in the DT */
nodename = g_strdup_printf("/flash@%" PRIx64, flashbase);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_string(vms->fdt, nodename, "compatible", "cfi-flash");
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash");
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, flashbase, 2, flashsize,
2, flashbase + flashsize, 2, flashsize);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "bank-width", 4);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4);
g_free(nodename);
} else {
/*
@@ -1086,21 +1094,21 @@ static void virt_flash_fdt(VirtMachineState *vms,
* only visible to the secure world.
*/
nodename = g_strdup_printf("/secflash@%" PRIx64, flashbase);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_string(vms->fdt, nodename, "compatible", "cfi-flash");
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash");
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, flashbase, 2, flashsize);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "bank-width", 4);
- qemu_fdt_setprop_string(vms->fdt, nodename, "status", "disabled");
- qemu_fdt_setprop_string(vms->fdt, nodename, "secure-status", "okay");
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4);
+ qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled");
+ qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay");
g_free(nodename);
nodename = g_strdup_printf("/flash@%" PRIx64, flashbase);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_string(vms->fdt, nodename, "compatible", "cfi-flash");
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash");
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, flashbase + flashsize, 2, flashsize);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "bank-width", 4);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4);
g_free(nodename);
}
}
@@ -1167,17 +1175,17 @@ static FWCfgState *create_fw_cfg(const VirtMachineState *vms, AddressSpace *as)
fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)ms->smp.cpus);
nodename = g_strdup_printf("/fw-cfg@%" PRIx64, base);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_string(vms->fdt, nodename,
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_string(ms->fdt, nodename,
"compatible", "qemu,fw-cfg-mmio");
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, base, 2, size);
- qemu_fdt_setprop(vms->fdt, nodename, "dma-coherent", NULL, 0);
+ qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0);
g_free(nodename);
return fw_cfg;
}
-static void create_pcie_irq_map(const VirtMachineState *vms,
+static void create_pcie_irq_map(const MachineState *ms,
uint32_t gic_phandle,
int first_irq, const char *nodename)
{
@@ -1205,10 +1213,10 @@ static void create_pcie_irq_map(const VirtMachineState *vms,
}
}
- qemu_fdt_setprop(vms->fdt, nodename, "interrupt-map",
+ qemu_fdt_setprop(ms->fdt, nodename, "interrupt-map",
full_irq_map, sizeof(full_irq_map));
- qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupt-map-mask",
+ qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupt-map-mask",
cpu_to_be16(PCI_DEVFN(3, 0)), /* Slot 3 */
0, 0,
0x7 /* PCI irq */);
@@ -1225,6 +1233,7 @@ static void create_smmu(const VirtMachineState *vms,
hwaddr size = vms->memmap[VIRT_SMMU].size;
const char irq_names[] = "eventq\0priq\0cmdq-sync\0gerror";
DeviceState *dev;
+ MachineState *ms = MACHINE(vms);
if (vms->iommu != VIRT_IOMMU_SMMUV3 || !vms->iommu_phandle) {
return;
@@ -1242,26 +1251,26 @@ static void create_smmu(const VirtMachineState *vms,
}
node = g_strdup_printf("/smmuv3@%" PRIx64, base);
- qemu_fdt_add_subnode(vms->fdt, node);
- qemu_fdt_setprop(vms->fdt, node, "compatible", compat, sizeof(compat));
- qemu_fdt_setprop_sized_cells(vms->fdt, node, "reg", 2, base, 2, size);
+ qemu_fdt_add_subnode(ms->fdt, node);
+ qemu_fdt_setprop(ms->fdt, node, "compatible", compat, sizeof(compat));
+ qemu_fdt_setprop_sized_cells(ms->fdt, node, "reg", 2, base, 2, size);
- qemu_fdt_setprop_cells(vms->fdt, node, "interrupts",
+ qemu_fdt_setprop_cells(ms->fdt, node, "interrupts",
GIC_FDT_IRQ_TYPE_SPI, irq , GIC_FDT_IRQ_FLAGS_EDGE_LO_HI,
GIC_FDT_IRQ_TYPE_SPI, irq + 1, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI,
GIC_FDT_IRQ_TYPE_SPI, irq + 2, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI,
GIC_FDT_IRQ_TYPE_SPI, irq + 3, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI);
- qemu_fdt_setprop(vms->fdt, node, "interrupt-names", irq_names,
+ qemu_fdt_setprop(ms->fdt, node, "interrupt-names", irq_names,
sizeof(irq_names));
- qemu_fdt_setprop_cell(vms->fdt, node, "clocks", vms->clock_phandle);
- qemu_fdt_setprop_string(vms->fdt, node, "clock-names", "apb_pclk");
- qemu_fdt_setprop(vms->fdt, node, "dma-coherent", NULL, 0);
+ qemu_fdt_setprop_cell(ms->fdt, node, "clocks", vms->clock_phandle);
+ qemu_fdt_setprop_string(ms->fdt, node, "clock-names", "apb_pclk");
+ qemu_fdt_setprop(ms->fdt, node, "dma-coherent", NULL, 0);
- qemu_fdt_setprop_cell(vms->fdt, node, "#iommu-cells", 1);
+ qemu_fdt_setprop_cell(ms->fdt, node, "#iommu-cells", 1);
- qemu_fdt_setprop_cell(vms->fdt, node, "phandle", vms->iommu_phandle);
+ qemu_fdt_setprop_cell(ms->fdt, node, "phandle", vms->iommu_phandle);
g_free(node);
}
@@ -1269,22 +1278,23 @@ static void create_virtio_iommu_dt_bindings(VirtMachineState *vms)
{
const char compat[] = "virtio,pci-iommu";
uint16_t bdf = vms->virtio_iommu_bdf;
+ MachineState *ms = MACHINE(vms);
char *node;
- vms->iommu_phandle = qemu_fdt_alloc_phandle(vms->fdt);
+ vms->iommu_phandle = qemu_fdt_alloc_phandle(ms->fdt);
node = g_strdup_printf("%s/virtio_iommu@%d", vms->pciehb_nodename, bdf);
- qemu_fdt_add_subnode(vms->fdt, node);
- qemu_fdt_setprop(vms->fdt, node, "compatible", compat, sizeof(compat));
- qemu_fdt_setprop_sized_cells(vms->fdt, node, "reg",
+ qemu_fdt_add_subnode(ms->fdt, node);
+ qemu_fdt_setprop(ms->fdt, node, "compatible", compat, sizeof(compat));
+ qemu_fdt_setprop_sized_cells(ms->fdt, node, "reg",
1, bdf << 8, 1, 0, 1, 0,
1, 0, 1, 0);
- qemu_fdt_setprop_cell(vms->fdt, node, "#iommu-cells", 1);
- qemu_fdt_setprop_cell(vms->fdt, node, "phandle", vms->iommu_phandle);
+ qemu_fdt_setprop_cell(ms->fdt, node, "#iommu-cells", 1);
+ qemu_fdt_setprop_cell(ms->fdt, node, "phandle", vms->iommu_phandle);
g_free(node);
- qemu_fdt_setprop_cells(vms->fdt, vms->pciehb_nodename, "iommu-map",
+ qemu_fdt_setprop_cells(ms->fdt, vms->pciehb_nodename, "iommu-map",
0x0, vms->iommu_phandle, 0x0, bdf,
bdf + 1, vms->iommu_phandle, bdf + 1, 0xffff - bdf);
}
@@ -1309,6 +1319,7 @@ static void create_pcie(VirtMachineState *vms)
char *nodename;
int i, ecam_id;
PCIHostState *pci;
+ MachineState *ms = MACHINE(vms);
dev = qdev_new(TYPE_GPEX_HOST);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
@@ -1369,27 +1380,27 @@ static void create_pcie(VirtMachineState *vms)
}
nodename = vms->pciehb_nodename = g_strdup_printf("/pcie@%" PRIx64, base);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_string(vms->fdt, nodename,
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_string(ms->fdt, nodename,
"compatible", "pci-host-ecam-generic");
- qemu_fdt_setprop_string(vms->fdt, nodename, "device_type", "pci");
- qemu_fdt_setprop_cell(vms->fdt, nodename, "#address-cells", 3);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "#size-cells", 2);
- qemu_fdt_setprop_cell(vms->fdt, nodename, "linux,pci-domain", 0);
- qemu_fdt_setprop_cells(vms->fdt, nodename, "bus-range", 0,
+ qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "pci");
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 3);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 2);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "linux,pci-domain", 0);
+ qemu_fdt_setprop_cells(ms->fdt, nodename, "bus-range", 0,
nr_pcie_buses - 1);
- qemu_fdt_setprop(vms->fdt, nodename, "dma-coherent", NULL, 0);
+ qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0);
if (vms->msi_phandle) {
- qemu_fdt_setprop_cells(vms->fdt, nodename, "msi-parent",
+ qemu_fdt_setprop_cells(ms->fdt, nodename, "msi-parent",
vms->msi_phandle);
}
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, base_ecam, 2, size_ecam);
if (vms->highmem) {
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "ranges",
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges",
1, FDT_PCI_RANGE_IOPORT, 2, 0,
2, base_pio, 2, size_pio,
1, FDT_PCI_RANGE_MMIO, 2, base_mmio,
@@ -1398,23 +1409,23 @@ static void create_pcie(VirtMachineState *vms)
2, base_mmio_high,
2, base_mmio_high, 2, size_mmio_high);
} else {
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "ranges",
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges",
1, FDT_PCI_RANGE_IOPORT, 2, 0,
2, base_pio, 2, size_pio,
1, FDT_PCI_RANGE_MMIO, 2, base_mmio,
2, base_mmio, 2, size_mmio);
}
- qemu_fdt_setprop_cell(vms->fdt, nodename, "#interrupt-cells", 1);
- create_pcie_irq_map(vms, vms->gic_phandle, irq, nodename);
+ qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1);
+ create_pcie_irq_map(ms, vms->gic_phandle, irq, nodename);
if (vms->iommu) {
- vms->iommu_phandle = qemu_fdt_alloc_phandle(vms->fdt);
+ vms->iommu_phandle = qemu_fdt_alloc_phandle(ms->fdt);
switch (vms->iommu) {
case VIRT_IOMMU_SMMUV3:
create_smmu(vms, vms->bus);
- qemu_fdt_setprop_cells(vms->fdt, nodename, "iommu-map",
+ qemu_fdt_setprop_cells(ms->fdt, nodename, "iommu-map",
0x0, vms->iommu_phandle, 0x0, 0x10000);
break;
default:
@@ -1466,17 +1477,18 @@ static void create_secure_ram(VirtMachineState *vms,
char *nodename;
hwaddr base = vms->memmap[VIRT_SECURE_MEM].base;
hwaddr size = vms->memmap[VIRT_SECURE_MEM].size;
+ MachineState *ms = MACHINE(vms);
memory_region_init_ram(secram, NULL, "virt.secure-ram", size,
&error_fatal);
memory_region_add_subregion(secure_sysmem, base, secram);
nodename = g_strdup_printf("/secram@%" PRIx64, base);
- qemu_fdt_add_subnode(vms->fdt, nodename);
- qemu_fdt_setprop_string(vms->fdt, nodename, "device_type", "memory");
- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", 2, base, 2, size);
- qemu_fdt_setprop_string(vms->fdt, nodename, "status", "disabled");
- qemu_fdt_setprop_string(vms->fdt, nodename, "secure-status", "okay");
+ qemu_fdt_add_subnode(ms->fdt, nodename);
+ qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "memory");
+ qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size);
+ qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled");
+ qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay");
if (secure_tag_sysmem) {
create_tag_ram(secure_tag_sysmem, base, size, "mach-virt.secure-tag");
@@ -1489,9 +1501,11 @@ static void *machvirt_dtb(const struct arm_boot_info *binfo, int *fdt_size)
{
const VirtMachineState *board = container_of(binfo, VirtMachineState,
bootinfo);
+ MachineState *ms = MACHINE(board);
+
*fdt_size = board->fdt_size;
- return board->fdt;
+ return ms->fdt;
}
static void virt_build_smbios(VirtMachineState *vms)
@@ -1539,7 +1553,7 @@ void virt_machine_done(Notifier *notifier, void *data)
* while qemu takes charge of the qom stuff.
*/
if (info->dtb_filename == NULL) {
- platform_bus_add_all_fdt_nodes(vms->fdt, "/intc",
+ platform_bus_add_all_fdt_nodes(ms->fdt, "/intc",
vms->memmap[VIRT_PLATFORM_BUS].base,
vms->memmap[VIRT_PLATFORM_BUS].size,
vms->irqmap[VIRT_PLATFORM_BUS]);
diff --git a/hw/core/guest-loader.c b/hw/core/guest-loader.c
new file mode 100644
index 0000000000..bde44e27b4
--- /dev/null
+++ b/hw/core/guest-loader.c
@@ -0,0 +1,145 @@
+/*
+ * Guest Loader
+ *
+ * Copyright (C) 2020 Linaro
+ * Written by Alex Bennée <alex.bennee@linaro.org>
+ * (based on the generic-loader by Li Guang <lig.fnst@cn.fujitsu.com>)
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+/*
+ * Much like the generic-loader this is treated as a special device
+ * inside QEMU. However unlike the generic-loader this device is used
+ * to load guest images for hypervisors. As part of that process the
+ * hypervisor needs to have platform information passed to it by the
+ * lower levels of the stack (e.g. firmware/bootloader). If you boot
+ * the hypervisor directly you use the guest-loader to load the Dom0
+ * or equivalent guest images in the right place in the same way a
+ * boot loader would.
+ *
+ * This is only relevant for full system emulation.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/core/cpu.h"
+#include "hw/sysbus.h"
+#include "sysemu/dma.h"
+#include "hw/loader.h"
+#include "hw/qdev-properties.h"
+#include "qapi/error.h"
+#include "qemu/module.h"
+#include "guest-loader.h"
+#include "sysemu/device_tree.h"
+#include "hw/boards.h"
+
+/*
+ * Insert some FDT nodes for the loaded blob.
+ */
+static void loader_insert_platform_data(GuestLoaderState *s, int size,
+ Error **errp)
+{
+ MachineState *machine = MACHINE(qdev_get_machine());
+ void *fdt = machine->fdt;
+ g_autofree char *node = g_strdup_printf("/chosen/module@0x%08" PRIx64,
+ s->addr);
+ uint64_t reg_attr[2] = {cpu_to_be64(s->addr), cpu_to_be64(size)};
+
+ if (!fdt) {
+ error_setg(errp, "Cannot modify FDT fields if the machine has none");
+ return;
+ }
+
+ qemu_fdt_add_subnode(fdt, node);
+ qemu_fdt_setprop(fdt, node, "reg", &reg_attr, sizeof(reg_attr));
+
+ if (s->kernel) {
+ const char *compat[2] = { "multiboot,module", "multiboot,kernel" };
+ if (qemu_fdt_setprop_string_array(fdt, node, "compatible",
+ (char **) &compat,
+ ARRAY_SIZE(compat)) < 0) {
+ error_setg(errp, "couldn't set %s/compatible", node);
+ return;
+ }
+ if (s->args) {
+ if (qemu_fdt_setprop_string(fdt, node, "bootargs", s->args) < 0) {
+ error_setg(errp, "couldn't set %s/bootargs", node);
+ }
+ }
+ } else if (s->initrd) {
+ const char *compat[2] = { "multiboot,module", "multiboot,ramdisk" };
+ if (qemu_fdt_setprop_string_array(fdt, node, "compatible",
+ (char **) &compat,
+ ARRAY_SIZE(compat)) < 0) {
+ error_setg(errp, "couldn't set %s/compatible", node);
+ return;
+ }
+ }
+}
+
+static void guest_loader_realize(DeviceState *dev, Error **errp)
+{
+ GuestLoaderState *s = GUEST_LOADER(dev);
+ char *file = s->kernel ? s->kernel : s->initrd;
+ int size = 0;
+
+ /* Perform some error checking on the user's options */
+ if (s->kernel && s->initrd) {
+ error_setg(errp, "Cannot specify a kernel and initrd in same stanza");
+ return;
+ } else if (!s->kernel && !s->initrd) {
+ error_setg(errp, "Need to specify a kernel or initrd image");
+ return;
+ } else if (!s->addr) {
+ error_setg(errp, "Need to specify the address of guest blob");
+ return;
+ } else if (s->args && !s->kernel) {
+ error_setg(errp, "Boot args only relevant to kernel blobs");
+ }
+
+ /* Default to the maximum size being the machine's ram size */
+ size = load_image_targphys_as(file, s->addr, current_machine->ram_size,
+ NULL);
+ if (size < 0) {
+ error_setg(errp, "Cannot load specified image %s", file);
+ return;
+ }
+
+ /* Now the image is loaded we need to update the platform data */
+ loader_insert_platform_data(s, size, errp);
+}
+
+static Property guest_loader_props[] = {
+ DEFINE_PROP_UINT64("addr", GuestLoaderState, addr, 0),
+ DEFINE_PROP_STRING("kernel", GuestLoaderState, kernel),
+ DEFINE_PROP_STRING("bootargs", GuestLoaderState, args),
+ DEFINE_PROP_STRING("initrd", GuestLoaderState, initrd),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void guest_loader_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->realize = guest_loader_realize;
+ device_class_set_props(dc, guest_loader_props);
+ dc->desc = "Guest Loader";
+ set_bit(DEVICE_CATEGORY_MISC, dc->categories);
+}
+
+static TypeInfo guest_loader_info = {
+ .name = TYPE_GUEST_LOADER,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(GuestLoaderState),
+ .class_init = guest_loader_class_init,
+};
+
+static void guest_loader_register_type(void)
+{
+ type_register_static(&guest_loader_info);
+}
+
+type_init(guest_loader_register_type)
diff --git a/hw/core/guest-loader.h b/hw/core/guest-loader.h
new file mode 100644
index 0000000000..07f4b4884b
--- /dev/null
+++ b/hw/core/guest-loader.h
@@ -0,0 +1,34 @@
+/*
+ * Guest Loader
+ *
+ * Copyright (C) 2020 Linaro
+ * Written by Alex Bennée <alex.bennee@linaro.org>
+ * (based on the generic-loader by Li Guang <lig.fnst@cn.fujitsu.com>)
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef GUEST_LOADER_H
+#define GUEST_LOADER_H
+
+#include "hw/qdev-core.h"
+#include "qom/object.h"
+
+struct GuestLoaderState {
+ /* <private> */
+ DeviceState parent_obj;
+
+ /* <public> */
+ uint64_t addr;
+ char *kernel;
+ char *args;
+ char *initrd;
+};
+
+#define TYPE_GUEST_LOADER "guest-loader"
+OBJECT_DECLARE_SIMPLE_TYPE(GuestLoaderState, GUEST_LOADER)
+
+#endif
diff --git a/hw/core/meson.build b/hw/core/meson.build
index 032576f571..9cd72edf51 100644
--- a/hw/core/meson.build
+++ b/hw/core/meson.build
@@ -37,6 +37,8 @@ softmmu_ss.add(files(
'clock-vmstate.c',
))
+softmmu_ss.add(when: 'CONFIG_TCG', if_true: files('guest-loader.c'))
+
specific_ss.add(when: 'CONFIG_SOFTMMU', if_true: files(
'machine-qmp-cmds.c',
'numa.c',
diff --git a/hw/meson.build b/hw/meson.build
index e615d72d4d..8ba79b1a52 100644
--- a/hw/meson.build
+++ b/hw/meson.build
@@ -30,7 +30,6 @@ subdir('rdma')
subdir('rtc')
subdir('scsi')
subdir('sd')
-subdir('semihosting')
subdir('smbios')
subdir('ssi')
subdir('timer')
diff --git a/hw/mips/malta.c b/hw/mips/malta.c
index 9afc0b427b..26e7b1bd9f 100644
--- a/hw/mips/malta.c
+++ b/hw/mips/malta.c
@@ -58,7 +58,7 @@
#include "qemu/error-report.h"
#include "hw/misc/empty_slot.h"
#include "sysemu/kvm.h"
-#include "hw/semihosting/semihost.h"
+#include "semihosting/semihost.h"
#include "hw/mips/cps.h"
#include "hw/qdev-clock.h"
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 4f0c2fbca0..0b39101a5e 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -195,14 +195,14 @@ static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap,
hwaddr flashbase = virt_memmap[VIRT_FLASH].base;
if (mc->dtb) {
- fdt = s->fdt = load_device_tree(mc->dtb, &s->fdt_size);
+ fdt = mc->fdt = load_device_tree(mc->dtb, &s->fdt_size);
if (!fdt) {
error_report("load_device_tree() failed");
exit(1);
}
goto update_bootargs;
} else {
- fdt = s->fdt = create_device_tree(&s->fdt_size);
+ fdt = mc->fdt = create_device_tree(&s->fdt_size);
if (!fdt) {
error_report("create_device_tree() failed");
exit(1);
@@ -444,12 +444,12 @@ static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap,
g_free(name);
name = g_strdup_printf("/soc/flash@%" PRIx64, flashbase);
- qemu_fdt_add_subnode(s->fdt, name);
- qemu_fdt_setprop_string(s->fdt, name, "compatible", "cfi-flash");
- qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
+ qemu_fdt_add_subnode(mc->fdt, name);
+ qemu_fdt_setprop_string(mc->fdt, name, "compatible", "cfi-flash");
+ qemu_fdt_setprop_sized_cells(mc->fdt, name, "reg",
2, flashbase, 2, flashsize,
2, flashbase + flashsize, 2, flashsize);
- qemu_fdt_setprop_cell(s->fdt, name, "bank-width", 4);
+ qemu_fdt_setprop_cell(mc->fdt, name, "bank-width", 4);
g_free(name);
update_bootargs:
@@ -667,9 +667,9 @@ static void virt_machine_init(MachineState *machine)
hwaddr end = riscv_load_initrd(machine->initrd_filename,
machine->ram_size, kernel_entry,
&start);
- qemu_fdt_setprop_cell(s->fdt, "/chosen",
+ qemu_fdt_setprop_cell(machine->fdt, "/chosen",
"linux,initrd-start", start);
- qemu_fdt_setprop_cell(s->fdt, "/chosen", "linux,initrd-end",
+ qemu_fdt_setprop_cell(machine->fdt, "/chosen", "linux,initrd-end",
end);
}
} else {
@@ -690,12 +690,12 @@ static void virt_machine_init(MachineState *machine)
/* Compute the fdt load address in dram */
fdt_load_addr = riscv_load_fdt(memmap[VIRT_DRAM].base,
- machine->ram_size, s->fdt);
+ machine->ram_size, machine->fdt);
/* load the reset vector */
riscv_setup_rom_reset_vec(machine, &s->soc[0], start_addr,
virt_memmap[VIRT_MROM].base,
virt_memmap[VIRT_MROM].size, kernel_entry,
- fdt_load_addr, s->fdt);
+ fdt_load_addr, machine->fdt);
/* SiFive Test MMIO device */
sifive_test_create(memmap[VIRT_TEST].base);
diff --git a/hw/semihosting/Kconfig b/hw/semihosting/Kconfig
deleted file mode 100644
index eaf3a20ef5..0000000000
--- a/hw/semihosting/Kconfig
+++ /dev/null
@@ -1,7 +0,0 @@
-
-config SEMIHOSTING
- bool
-
-config ARM_COMPATIBLE_SEMIHOSTING
- bool
- select SEMIHOSTING
diff --git a/hw/semihosting/arm-compat-semi.c b/hw/semihosting/arm-compat-semi.c
deleted file mode 100644
index 23c6e3edcb..0000000000
--- a/hw/semihosting/arm-compat-semi.c
+++ /dev/null
@@ -1,1306 +0,0 @@
-/*
- * Semihosting support for systems modeled on the Arm "Angel"
- * semihosting syscalls design. This includes Arm and RISC-V processors
- *
- * Copyright (c) 2005, 2007 CodeSourcery.
- * Copyright (c) 2019 Linaro
- * Written by Paul Brook.
- *
- * Copyright © 2020 by Keith Packard <keithp@keithp.com>
- * Adapted for systems other than ARM, including RISC-V, by Keith Packard
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- *
- * ARM Semihosting is documented in:
- * Semihosting for AArch32 and AArch64 Release 2.0
- * https://static.docs.arm.com/100863/0200/semihosting.pdf
- *
- * RISC-V Semihosting is documented in:
- * RISC-V Semihosting
- * https://github.com/riscv/riscv-semihosting-spec/blob/main/riscv-semihosting-spec.adoc
- */
-
-#include "qemu/osdep.h"
-
-#include "cpu.h"
-#include "hw/semihosting/semihost.h"
-#include "hw/semihosting/console.h"
-#include "hw/semihosting/common-semi.h"
-#include "qemu/log.h"
-#include "qemu/timer.h"
-#ifdef CONFIG_USER_ONLY
-#include "qemu.h"
-
-#define COMMON_SEMI_HEAP_SIZE (128 * 1024 * 1024)
-#else
-#include "exec/gdbstub.h"
-#include "qemu/cutils.h"
-#ifdef TARGET_ARM
-#include "hw/arm/boot.h"
-#endif
-#include "hw/boards.h"
-#endif
-
-#define TARGET_SYS_OPEN 0x01
-#define TARGET_SYS_CLOSE 0x02
-#define TARGET_SYS_WRITEC 0x03
-#define TARGET_SYS_WRITE0 0x04
-#define TARGET_SYS_WRITE 0x05
-#define TARGET_SYS_READ 0x06
-#define TARGET_SYS_READC 0x07
-#define TARGET_SYS_ISERROR 0x08
-#define TARGET_SYS_ISTTY 0x09
-#define TARGET_SYS_SEEK 0x0a
-#define TARGET_SYS_FLEN 0x0c
-#define TARGET_SYS_TMPNAM 0x0d
-#define TARGET_SYS_REMOVE 0x0e
-#define TARGET_SYS_RENAME 0x0f
-#define TARGET_SYS_CLOCK 0x10
-#define TARGET_SYS_TIME 0x11
-#define TARGET_SYS_SYSTEM 0x12
-#define TARGET_SYS_ERRNO 0x13
-#define TARGET_SYS_GET_CMDLINE 0x15
-#define TARGET_SYS_HEAPINFO 0x16
-#define TARGET_SYS_EXIT 0x18
-#define TARGET_SYS_SYNCCACHE 0x19
-#define TARGET_SYS_EXIT_EXTENDED 0x20
-#define TARGET_SYS_ELAPSED 0x30
-#define TARGET_SYS_TICKFREQ 0x31
-
-/* ADP_Stopped_ApplicationExit is used for exit(0),
- * anything else is implemented as exit(1) */
-#define ADP_Stopped_ApplicationExit (0x20026)
-
-#ifndef O_BINARY
-#define O_BINARY 0
-#endif
-
-#define GDB_O_RDONLY 0x000
-#define GDB_O_WRONLY 0x001
-#define GDB_O_RDWR 0x002
-#define GDB_O_APPEND 0x008
-#define GDB_O_CREAT 0x200
-#define GDB_O_TRUNC 0x400
-#define GDB_O_BINARY 0
-
-static int gdb_open_modeflags[12] = {
- GDB_O_RDONLY,
- GDB_O_RDONLY | GDB_O_BINARY,
- GDB_O_RDWR,
- GDB_O_RDWR | GDB_O_BINARY,
- GDB_O_WRONLY | GDB_O_CREAT | GDB_O_TRUNC,
- GDB_O_WRONLY | GDB_O_CREAT | GDB_O_TRUNC | GDB_O_BINARY,
- GDB_O_RDWR | GDB_O_CREAT | GDB_O_TRUNC,
- GDB_O_RDWR | GDB_O_CREAT | GDB_O_TRUNC | GDB_O_BINARY,
- GDB_O_WRONLY | GDB_O_CREAT | GDB_O_APPEND,
- GDB_O_WRONLY | GDB_O_CREAT | GDB_O_APPEND | GDB_O_BINARY,
- GDB_O_RDWR | GDB_O_CREAT | GDB_O_APPEND,
- GDB_O_RDWR | GDB_O_CREAT | GDB_O_APPEND | GDB_O_BINARY
-};
-
-static int open_modeflags[12] = {
- O_RDONLY,
- O_RDONLY | O_BINARY,
- O_RDWR,
- O_RDWR | O_BINARY,
- O_WRONLY | O_CREAT | O_TRUNC,
- O_WRONLY | O_CREAT | O_TRUNC | O_BINARY,
- O_RDWR | O_CREAT | O_TRUNC,
- O_RDWR | O_CREAT | O_TRUNC | O_BINARY,
- O_WRONLY | O_CREAT | O_APPEND,
- O_WRONLY | O_CREAT | O_APPEND | O_BINARY,
- O_RDWR | O_CREAT | O_APPEND,
- O_RDWR | O_CREAT | O_APPEND | O_BINARY
-};
-
-typedef enum GuestFDType {
- GuestFDUnused = 0,
- GuestFDHost = 1,
- GuestFDGDB = 2,
- GuestFDFeatureFile = 3,
-} GuestFDType;
-
-/*
- * Guest file descriptors are integer indexes into an array of
- * these structures (we will dynamically resize as necessary).
- */
-typedef struct GuestFD {
- GuestFDType type;
- union {
- int hostfd;
- target_ulong featurefile_offset;
- };
-} GuestFD;
-
-static GArray *guestfd_array;
-
-#ifndef CONFIG_USER_ONLY
-#include "exec/address-spaces.h"
-/*
- * Find the base of a RAM region containing the specified address
- */
-static inline hwaddr
-common_semi_find_region_base(hwaddr addr)
-{
- MemoryRegion *subregion;
-
- /*
- * Find the chunk of R/W memory containing the address. This is
- * used for the SYS_HEAPINFO semihosting call, which should
- * probably be using information from the loaded application.
- */
- QTAILQ_FOREACH(subregion, &get_system_memory()->subregions,
- subregions_link) {
- if (subregion->ram && !subregion->readonly) {
- Int128 top128 = int128_add(int128_make64(subregion->addr),
- subregion->size);
- Int128 addr128 = int128_make64(addr);
- if (subregion->addr <= addr && int128_lt(addr128, top128)) {
- return subregion->addr;
- }
- }
- }
- return 0;
-}
-#endif
-
-#ifdef TARGET_ARM
-static inline target_ulong
-common_semi_arg(CPUState *cs, int argno)
-{
- ARMCPU *cpu = ARM_CPU(cs);
- CPUARMState *env = &cpu->env;
- if (is_a64(env)) {
- return env->xregs[argno];
- } else {
- return env->regs[argno];
- }
-}
-
-static inline void
-common_semi_set_ret(CPUState *cs, target_ulong ret)
-{
- ARMCPU *cpu = ARM_CPU(cs);
- CPUARMState *env = &cpu->env;
- if (is_a64(env)) {
- env->xregs[0] = ret;
- } else {
- env->regs[0] = ret;
- }
-}
-
-static inline bool
-common_semi_sys_exit_extended(CPUState *cs, int nr)
-{
- return (nr == TARGET_SYS_EXIT_EXTENDED || is_a64(cs->env_ptr));
-}
-
-#ifndef CONFIG_USER_ONLY
-#include "hw/arm/boot.h"
-static inline target_ulong
-common_semi_rambase(CPUState *cs)
-{
- CPUArchState *env = cs->env_ptr;
- const struct arm_boot_info *info = env->boot_info;
- target_ulong sp;
-
- if (info) {
- return info->loader_start;
- }
-
- if (is_a64(env)) {
- sp = env->xregs[31];
- } else {
- sp = env->regs[13];
- }
- return common_semi_find_region_base(sp);
-}
-#endif
-
-#endif /* TARGET_ARM */
-
-#ifdef TARGET_RISCV
-static inline target_ulong
-common_semi_arg(CPUState *cs, int argno)
-{
- RISCVCPU *cpu = RISCV_CPU(cs);
- CPURISCVState *env = &cpu->env;
- return env->gpr[xA0 + argno];
-}
-
-static inline void
-common_semi_set_ret(CPUState *cs, target_ulong ret)
-{
- RISCVCPU *cpu = RISCV_CPU(cs);
- CPURISCVState *env = &cpu->env;
- env->gpr[xA0] = ret;
-}
-
-static inline bool
-common_semi_sys_exit_extended(CPUState *cs, int nr)
-{
- return (nr == TARGET_SYS_EXIT_EXTENDED || sizeof(target_ulong) == 8);
-}
-
-#ifndef CONFIG_USER_ONLY
-
-static inline target_ulong
-common_semi_rambase(CPUState *cs)
-{
- RISCVCPU *cpu = RISCV_CPU(cs);
- CPURISCVState *env = &cpu->env;
- return common_semi_find_region_base(env->gpr[xSP]);
-}
-#endif
-
-#endif
-
-/*
- * Allocate a new guest file descriptor and return it; if we
- * couldn't allocate a new fd then return -1.
- * This is a fairly simplistic implementation because we don't
- * expect that most semihosting guest programs will make very
- * heavy use of opening and closing fds.
- */
-static int alloc_guestfd(void)
-{
- guint i;
-
- if (!guestfd_array) {
- /* New entries zero-initialized, i.e. type GuestFDUnused */
- guestfd_array = g_array_new(FALSE, TRUE, sizeof(GuestFD));
- }
-
- /* SYS_OPEN should return nonzero handle on success. Start guestfd from 1 */
- for (i = 1; i < guestfd_array->len; i++) {
- GuestFD *gf = &g_array_index(guestfd_array, GuestFD, i);
-
- if (gf->type == GuestFDUnused) {
- return i;
- }
- }
-
- /* All elements already in use: expand the array */
- g_array_set_size(guestfd_array, i + 1);
- return i;
-}
-
-/*
- * Look up the guestfd in the data structure; return NULL
- * for out of bounds, but don't check whether the slot is unused.
- * This is used internally by the other guestfd functions.
- */
-static GuestFD *do_get_guestfd(int guestfd)
-{
- if (!guestfd_array) {
- return NULL;
- }
-
- if (guestfd <= 0 || guestfd >= guestfd_array->len) {
- return NULL;
- }
-
- return &g_array_index(guestfd_array, GuestFD, guestfd);
-}
-
-/*
- * Associate the specified guest fd (which must have been
- * allocated via alloc_fd() and not previously used) with
- * the specified host/gdb fd.
- */
-static void associate_guestfd(int guestfd, int hostfd)
-{
- GuestFD *gf = do_get_guestfd(guestfd);
-
- assert(gf);
- gf->type = use_gdb_syscalls() ? GuestFDGDB : GuestFDHost;
- gf->hostfd = hostfd;
-}
-
-/*
- * Deallocate the specified guest file descriptor. This doesn't
- * close the host fd, it merely undoes the work of alloc_fd().
- */
-static void dealloc_guestfd(int guestfd)
-{
- GuestFD *gf = do_get_guestfd(guestfd);
-
- assert(gf);
- gf->type = GuestFDUnused;
-}
-
-/*
- * Given a guest file descriptor, get the associated struct.
- * If the fd is not valid, return NULL. This is the function
- * used by the various semihosting calls to validate a handle
- * from the guest.
- * Note: calling alloc_guestfd() or dealloc_guestfd() will
- * invalidate any GuestFD* obtained by calling this function.
- */
-static GuestFD *get_guestfd(int guestfd)
-{
- GuestFD *gf = do_get_guestfd(guestfd);
-
- if (!gf || gf->type == GuestFDUnused) {
- return NULL;
- }
- return gf;
-}
-
-/*
- * The semihosting API has no concept of its errno being thread-safe,
- * as the API design predates SMP CPUs and was intended as a simple
- * real-hardware set of debug functionality. For QEMU, we make the
- * errno be per-thread in linux-user mode; in softmmu it is a simple
- * global, and we assume that the guest takes care of avoiding any races.
- */
-#ifndef CONFIG_USER_ONLY
-static target_ulong syscall_err;
-
-#include "exec/softmmu-semi.h"
-#endif
-
-static inline uint32_t set_swi_errno(CPUState *cs, uint32_t code)
-{
- if (code == (uint32_t)-1) {
-#ifdef CONFIG_USER_ONLY
- TaskState *ts = cs->opaque;
-
- ts->swi_errno = errno;
-#else
- syscall_err = errno;
-#endif
- }
- return code;
-}
-
-static inline uint32_t get_swi_errno(CPUState *cs)
-{
-#ifdef CONFIG_USER_ONLY
- TaskState *ts = cs->opaque;
-
- return ts->swi_errno;
-#else
- return syscall_err;
-#endif
-}
-
-static target_ulong common_semi_syscall_len;
-
-static void common_semi_cb(CPUState *cs, target_ulong ret, target_ulong err)
-{
- target_ulong reg0 = common_semi_arg(cs, 0);
-
- if (ret == (target_ulong)-1) {
- errno = err;
- set_swi_errno(cs, -1);
- reg0 = ret;
- } else {
- /* Fixup syscalls that use nonstardard return conventions. */
- switch (reg0) {
- case TARGET_SYS_WRITE:
- case TARGET_SYS_READ:
- reg0 = common_semi_syscall_len - ret;
- break;
- case TARGET_SYS_SEEK:
- reg0 = 0;
- break;
- default:
- reg0 = ret;
- break;
- }
- }
- common_semi_set_ret(cs, reg0);
-}
-
-static target_ulong common_semi_flen_buf(CPUState *cs)
-{
- target_ulong sp;
-#ifdef TARGET_ARM
- /* Return an address in target memory of 64 bytes where the remote
- * gdb should write its stat struct. (The format of this structure
- * is defined by GDB's remote protocol and is not target-specific.)
- * We put this on the guest's stack just below SP.
- */
- ARMCPU *cpu = ARM_CPU(cs);
- CPUARMState *env = &cpu->env;
-
- if (is_a64(env)) {
- sp = env->xregs[31];
- } else {
- sp = env->regs[13];
- }
-#endif
-#ifdef TARGET_RISCV
- RISCVCPU *cpu = RISCV_CPU(cs);
- CPURISCVState *env = &cpu->env;
-
- sp = env->gpr[xSP];
-#endif
-
- return sp - 64;
-}
-
-static void
-common_semi_flen_cb(CPUState *cs, target_ulong ret, target_ulong err)
-{
- /* The size is always stored in big-endian order, extract
- the value. We assume the size always fit in 32 bits. */
- uint32_t size;
- cpu_memory_rw_debug(cs, common_semi_flen_buf(cs) + 32,
- (uint8_t *)&size, 4, 0);
- size = be32_to_cpu(size);
- common_semi_set_ret(cs, size);
- errno = err;
- set_swi_errno(cs, -1);
-}
-
-static int common_semi_open_guestfd;
-
-static void
-common_semi_open_cb(CPUState *cs, target_ulong ret, target_ulong err)
-{
- if (ret == (target_ulong)-1) {
- errno = err;
- set_swi_errno(cs, -1);
- dealloc_guestfd(common_semi_open_guestfd);
- } else {
- associate_guestfd(common_semi_open_guestfd, ret);
- ret = common_semi_open_guestfd;
- }
- common_semi_set_ret(cs, ret);
-}
-
-static target_ulong
-common_semi_gdb_syscall(CPUState *cs, gdb_syscall_complete_cb cb,
- const char *fmt, ...)
-{
- va_list va;
-
- va_start(va, fmt);
- gdb_do_syscallv(cb, fmt, va);
- va_end(va);
-
- /*
- * FIXME: in softmmu mode, the gdbstub will schedule our callback
- * to occur, but will not actually call it to complete the syscall
- * until after this function has returned and we are back in the
- * CPU main loop. Therefore callers to this function must not
- * do anything with its return value, because it is not necessarily
- * the result of the syscall, but could just be the old value of X0.
- * The only thing safe to do with this is that the callers of
- * do_common_semihosting() will write it straight back into X0.
- * (In linux-user mode, the callback will have happened before
- * gdb_do_syscallv() returns.)
- *
- * We should tidy this up so neither this function nor
- * do_common_semihosting() return a value, so the mistake of
- * doing something with the return value is not possible to make.
- */
-
- return common_semi_arg(cs, 0);
-}
-
-/*
- * Types for functions implementing various semihosting calls
- * for specific types of guest file descriptor. These must all
- * do the work and return the required return value for the guest,
- * setting the guest errno if appropriate.
- */
-typedef uint32_t sys_closefn(CPUState *cs, GuestFD *gf);
-typedef uint32_t sys_writefn(CPUState *cs, GuestFD *gf,
- target_ulong buf, uint32_t len);
-typedef uint32_t sys_readfn(CPUState *cs, GuestFD *gf,
- target_ulong buf, uint32_t len);
-typedef uint32_t sys_isattyfn(CPUState *cs, GuestFD *gf);
-typedef uint32_t sys_seekfn(CPUState *cs, GuestFD *gf,
- target_ulong offset);
-typedef uint32_t sys_flenfn(CPUState *cs, GuestFD *gf);
-
-static uint32_t host_closefn(CPUState *cs, GuestFD *gf)
-{
- /*
- * Only close the underlying host fd if it's one we opened on behalf
- * of the guest in SYS_OPEN.
- */
- if (gf->hostfd == STDIN_FILENO ||
- gf->hostfd == STDOUT_FILENO ||
- gf->hostfd == STDERR_FILENO) {
- return 0;
- }
- return set_swi_errno(cs, close(gf->hostfd));
-}
-
-static uint32_t host_writefn(CPUState *cs, GuestFD *gf,
- target_ulong buf, uint32_t len)
-{
- CPUArchState *env = cs->env_ptr;
- uint32_t ret;
- char *s = lock_user(VERIFY_READ, buf, len, 1);
- (void) env; /* Used in arm softmmu lock_user implicitly */
- if (!s) {
- /* Return bytes not written on error */
- return len;
- }
- ret = set_swi_errno(cs, write(gf->hostfd, s, len));
- unlock_user(s, buf, 0);
- if (ret == (uint32_t)-1) {
- ret = 0;
- }
- /* Return bytes not written */
- return len - ret;
-}
-
-static uint32_t host_readfn(CPUState *cs, GuestFD *gf,
- target_ulong buf, uint32_t len)
-{
- CPUArchState *env = cs->env_ptr;
- uint32_t ret;
- char *s = lock_user(VERIFY_WRITE, buf, len, 0);
- (void) env; /* Used in arm softmmu lock_user implicitly */
- if (!s) {
- /* return bytes not read */
- return len;
- }
- do {
- ret = set_swi_errno(cs, read(gf->hostfd, s, len));
- } while (ret == -1 && errno == EINTR);
- unlock_user(s, buf, len);
- if (ret == (uint32_t)-1) {
- ret = 0;
- }
- /* Return bytes not read */
- return len - ret;
-}
-
-static uint32_t host_isattyfn(CPUState *cs, GuestFD *gf)
-{
- return isatty(gf->hostfd);
-}
-
-static uint32_t host_seekfn(CPUState *cs, GuestFD *gf, target_ulong offset)
-{
- uint32_t ret = set_swi_errno(cs, lseek(gf->hostfd, offset, SEEK_SET));
- if (ret == (uint32_t)-1) {
- return -1;
- }
- return 0;
-}
-
-static uint32_t host_flenfn(CPUState *cs, GuestFD *gf)
-{
- struct stat buf;
- uint32_t ret = set_swi_errno(cs, fstat(gf->hostfd, &buf));
- if (ret == (uint32_t)-1) {
- return -1;
- }
- return buf.st_size;
-}
-
-static uint32_t gdb_closefn(CPUState *cs, GuestFD *gf)
-{
- return common_semi_gdb_syscall(cs, common_semi_cb, "close,%x", gf->hostfd);
-}
-
-static uint32_t gdb_writefn(CPUState *cs, GuestFD *gf,
- target_ulong buf, uint32_t len)
-{
- common_semi_syscall_len = len;
- return common_semi_gdb_syscall(cs, common_semi_cb, "write,%x,%x,%x",
- gf->hostfd, buf, len);
-}
-
-static uint32_t gdb_readfn(CPUState *cs, GuestFD *gf,
- target_ulong buf, uint32_t len)
-{
- common_semi_syscall_len = len;
- return common_semi_gdb_syscall(cs, common_semi_cb, "read,%x,%x,%x",
- gf->hostfd, buf, len);
-}
-
-static uint32_t gdb_isattyfn(CPUState *cs, GuestFD *gf)
-{
- return common_semi_gdb_syscall(cs, common_semi_cb, "isatty,%x", gf->hostfd);
-}
-
-static uint32_t gdb_seekfn(CPUState *cs, GuestFD *gf, target_ulong offset)
-{
- return common_semi_gdb_syscall(cs, common_semi_cb, "lseek,%x,%x,0",
- gf->hostfd, offset);
-}
-
-static uint32_t gdb_flenfn(CPUState *cs, GuestFD *gf)
-{
- return common_semi_gdb_syscall(cs, common_semi_flen_cb, "fstat,%x,%x",
- gf->hostfd, common_semi_flen_buf(cs));
-}
-
-#define SHFB_MAGIC_0 0x53
-#define SHFB_MAGIC_1 0x48
-#define SHFB_MAGIC_2 0x46
-#define SHFB_MAGIC_3 0x42
-
-/* Feature bits reportable in feature byte 0 */
-#define SH_EXT_EXIT_EXTENDED (1 << 0)
-#define SH_EXT_STDOUT_STDERR (1 << 1)
-
-static const uint8_t featurefile_data[] = {
- SHFB_MAGIC_0,
- SHFB_MAGIC_1,
- SHFB_MAGIC_2,
- SHFB_MAGIC_3,
- SH_EXT_EXIT_EXTENDED | SH_EXT_STDOUT_STDERR, /* Feature byte 0 */
-};
-
-static void init_featurefile_guestfd(int guestfd)
-{
- GuestFD *gf = do_get_guestfd(guestfd);
-
- assert(gf);
- gf->type = GuestFDFeatureFile;
- gf->featurefile_offset = 0;
-}
-
-static uint32_t featurefile_closefn(CPUState *cs, GuestFD *gf)
-{
- /* Nothing to do */
- return 0;
-}
-
-static uint32_t featurefile_writefn(CPUState *cs, GuestFD *gf,
- target_ulong buf, uint32_t len)
-{
- /* This fd can never be open for writing */
-
- errno = EBADF;
- return set_swi_errno(cs, -1);
-}
-
-static uint32_t featurefile_readfn(CPUState *cs, GuestFD *gf,
- target_ulong buf, uint32_t len)
-{
- CPUArchState *env = cs->env_ptr;
- uint32_t i;
- char *s;
-
- (void) env; /* Used in arm softmmu lock_user implicitly */
- s = lock_user(VERIFY_WRITE, buf, len, 0);
- if (!s) {
- return len;
- }
-
- for (i = 0; i < len; i++) {
- if (gf->featurefile_offset >= sizeof(featurefile_data)) {
- break;
- }
- s[i] = featurefile_data[gf->featurefile_offset];
- gf->featurefile_offset++;
- }
-
- unlock_user(s, buf, len);
-
- /* Return number of bytes not read */
- return len - i;
-}
-
-static uint32_t featurefile_isattyfn(CPUState *cs, GuestFD *gf)
-{
- return 0;
-}
-
-static uint32_t featurefile_seekfn(CPUState *cs, GuestFD *gf,
- target_ulong offset)
-{
- gf->featurefile_offset = offset;
- return 0;
-}
-
-static uint32_t featurefile_flenfn(CPUState *cs, GuestFD *gf)
-{
- return sizeof(featurefile_data);
-}
-
-typedef struct GuestFDFunctions {
- sys_closefn *closefn;
- sys_writefn *writefn;
- sys_readfn *readfn;
- sys_isattyfn *isattyfn;
- sys_seekfn *seekfn;
- sys_flenfn *flenfn;
-} GuestFDFunctions;
-
-static const GuestFDFunctions guestfd_fns[] = {
- [GuestFDHost] = {
- .closefn = host_closefn,
- .writefn = host_writefn,
- .readfn = host_readfn,
- .isattyfn = host_isattyfn,
- .seekfn = host_seekfn,
- .flenfn = host_flenfn,
- },
- [GuestFDGDB] = {
- .closefn = gdb_closefn,
- .writefn = gdb_writefn,
- .readfn = gdb_readfn,
- .isattyfn = gdb_isattyfn,
- .seekfn = gdb_seekfn,
- .flenfn = gdb_flenfn,
- },
- [GuestFDFeatureFile] = {
- .closefn = featurefile_closefn,
- .writefn = featurefile_writefn,
- .readfn = featurefile_readfn,
- .isattyfn = featurefile_isattyfn,
- .seekfn = featurefile_seekfn,
- .flenfn = featurefile_flenfn,
- },
-};
-
-/* Read the input value from the argument block; fail the semihosting
- * call if the memory read fails.
- */
-#ifdef TARGET_ARM
-#define GET_ARG(n) do { \
- if (is_a64(env)) { \
- if (get_user_u64(arg ## n, args + (n) * 8)) { \
- errno = EFAULT; \
- return set_swi_errno(cs, -1); \
- } \
- } else { \
- if (get_user_u32(arg ## n, args + (n) * 4)) { \
- errno = EFAULT; \
- return set_swi_errno(cs, -1); \
- } \
- } \
-} while (0)
-
-#define SET_ARG(n, val) \
- (is_a64(env) ? \
- put_user_u64(val, args + (n) * 8) : \
- put_user_u32(val, args + (n) * 4))
-#endif
-
-#ifdef TARGET_RISCV
-
-/*
- * get_user_ual is defined as get_user_u32 in softmmu-semi.h,
- * we need a macro that fetches a target_ulong
- */
-#define get_user_utl(arg, p) \
- ((sizeof(target_ulong) == 8) ? \
- get_user_u64(arg, p) : \
- get_user_u32(arg, p))
-
-/*
- * put_user_ual is defined as put_user_u32 in softmmu-semi.h,
- * we need a macro that stores a target_ulong
- */
-#define put_user_utl(arg, p) \
- ((sizeof(target_ulong) == 8) ? \
- put_user_u64(arg, p) : \
- put_user_u32(arg, p))
-
-#define GET_ARG(n) do { \
- if (get_user_utl(arg ## n, args + (n) * sizeof(target_ulong))) { \
- errno = EFAULT; \
- return set_swi_errno(cs, -1); \
- } \
- } while (0)
-
-#define SET_ARG(n, val) \
- put_user_utl(val, args + (n) * sizeof(target_ulong))
-#endif
-
-/*
- * Do a semihosting call.
- *
- * The specification always says that the "return register" either
- * returns a specific value or is corrupted, so we don't need to
- * report to our caller whether we are returning a value or trying to
- * leave the register unchanged. We use 0xdeadbeef as the return value
- * when there isn't a defined return value for the call.
- */
-target_ulong do_common_semihosting(CPUState *cs)
-{
- CPUArchState *env = cs->env_ptr;
- target_ulong args;
- target_ulong arg0, arg1, arg2, arg3;
- target_ulong ul_ret;
- char * s;
- int nr;
- uint32_t ret;
- uint32_t len;
- GuestFD *gf;
- int64_t elapsed;
-
- (void) env; /* Used implicitly by arm lock_user macro */
- nr = common_semi_arg(cs, 0) & 0xffffffffU;
- args = common_semi_arg(cs, 1);
-
- switch (nr) {
- case TARGET_SYS_OPEN:
- {
- int guestfd;
-
- GET_ARG(0);
- GET_ARG(1);
- GET_ARG(2);
- s = lock_user_string(arg0);
- if (!s) {
- errno = EFAULT;
- return set_swi_errno(cs, -1);
- }
- if (arg1 >= 12) {
- unlock_user(s, arg0, 0);
- errno = EINVAL;
- return set_swi_errno(cs, -1);
- }
-
- guestfd = alloc_guestfd();
- if (guestfd < 0) {
- unlock_user(s, arg0, 0);
- errno = EMFILE;
- return set_swi_errno(cs, -1);
- }
-
- if (strcmp(s, ":tt") == 0) {
- int result_fileno;
-
- /*
- * We implement SH_EXT_STDOUT_STDERR, so:
- * open for read == stdin
- * open for write == stdout
- * open for append == stderr
- */
- if (arg1 < 4) {
- result_fileno = STDIN_FILENO;
- } else if (arg1 < 8) {
- result_fileno = STDOUT_FILENO;
- } else {
- result_fileno = STDERR_FILENO;
- }
- associate_guestfd(guestfd, result_fileno);
- unlock_user(s, arg0, 0);
- return guestfd;
- }
- if (strcmp(s, ":semihosting-features") == 0) {
- unlock_user(s, arg0, 0);
- /* We must fail opens for modes other than 0 ('r') or 1 ('rb') */
- if (arg1 != 0 && arg1 != 1) {
- dealloc_guestfd(guestfd);
- errno = EACCES;
- return set_swi_errno(cs, -1);
- }
- init_featurefile_guestfd(guestfd);
- return guestfd;
- }
-
- if (use_gdb_syscalls()) {
- common_semi_open_guestfd = guestfd;
- ret = common_semi_gdb_syscall(cs, common_semi_open_cb,
- "open,%s,%x,1a4", arg0, (int)arg2 + 1,
- gdb_open_modeflags[arg1]);
- } else {
- ret = set_swi_errno(cs, open(s, open_modeflags[arg1], 0644));
- if (ret == (uint32_t)-1) {
- dealloc_guestfd(guestfd);
- } else {
- associate_guestfd(guestfd, ret);
- ret = guestfd;
- }
- }
- unlock_user(s, arg0, 0);
- return ret;
- }
- case TARGET_SYS_CLOSE:
- GET_ARG(0);
-
- gf = get_guestfd(arg0);
- if (!gf) {
- errno = EBADF;
- return set_swi_errno(cs, -1);
- }
-
- ret = guestfd_fns[gf->type].closefn(cs, gf);
- dealloc_guestfd(arg0);
- return ret;
- case TARGET_SYS_WRITEC:
- qemu_semihosting_console_outc(cs->env_ptr, args);
- return 0xdeadbeef;
- case TARGET_SYS_WRITE0:
- return qemu_semihosting_console_outs(cs->env_ptr, args);
- case TARGET_SYS_WRITE:
- GET_ARG(0);
- GET_ARG(1);
- GET_ARG(2);
- len = arg2;
-
- gf = get_guestfd(arg0);
- if (!gf) {
- errno = EBADF;
- return set_swi_errno(cs, -1);
- }
-
- return guestfd_fns[gf->type].writefn(cs, gf, arg1, len);
- case TARGET_SYS_READ:
- GET_ARG(0);
- GET_ARG(1);
- GET_ARG(2);
- len = arg2;
-
- gf = get_guestfd(arg0);
- if (!gf) {
- errno = EBADF;
- return set_swi_errno(cs, -1);
- }
-
- return guestfd_fns[gf->type].readfn(cs, gf, arg1, len);
- case TARGET_SYS_READC:
- return qemu_semihosting_console_inc(cs->env_ptr);
- case TARGET_SYS_ISERROR:
- GET_ARG(0);
- return (target_long) arg0 < 0 ? 1 : 0;
- case TARGET_SYS_ISTTY:
- GET_ARG(0);
-
- gf = get_guestfd(arg0);
- if (!gf) {
- errno = EBADF;
- return set_swi_errno(cs, -1);
- }
-
- return guestfd_fns[gf->type].isattyfn(cs, gf);
- case TARGET_SYS_SEEK:
- GET_ARG(0);
- GET_ARG(1);
-
- gf = get_guestfd(arg0);
- if (!gf) {
- errno = EBADF;
- return set_swi_errno(cs, -1);
- }
-
- return guestfd_fns[gf->type].seekfn(cs, gf, arg1);
- case TARGET_SYS_FLEN:
- GET_ARG(0);
-
- gf = get_guestfd(arg0);
- if (!gf) {
- errno = EBADF;
- return set_swi_errno(cs, -1);
- }
-
- return guestfd_fns[gf->type].flenfn(cs, gf);
- case TARGET_SYS_TMPNAM:
- GET_ARG(0);
- GET_ARG(1);
- GET_ARG(2);
- if (asprintf(&s, "/tmp/qemu-%x%02x", getpid(),
- (int) (arg1 & 0xff)) < 0) {
- return -1;
- }
- ul_ret = (target_ulong) -1;
-
- /* Make sure there's enough space in the buffer */
- if (strlen(s) < arg2) {
- char *output = lock_user(VERIFY_WRITE, arg0, arg2, 0);
- strcpy(output, s);
- unlock_user(output, arg0, arg2);
- ul_ret = 0;
- }
- free(s);
- return ul_ret;
- case TARGET_SYS_REMOVE:
- GET_ARG(0);
- GET_ARG(1);
- if (use_gdb_syscalls()) {
- ret = common_semi_gdb_syscall(cs, common_semi_cb, "unlink,%s",
- arg0, (int)arg1 + 1);
- } else {
- s = lock_user_string(arg0);
- if (!s) {
- errno = EFAULT;
- return set_swi_errno(cs, -1);
- }
- ret = set_swi_errno(cs, remove(s));
- unlock_user(s, arg0, 0);
- }
- return ret;
- case TARGET_SYS_RENAME:
- GET_ARG(0);
- GET_ARG(1);
- GET_ARG(2);
- GET_ARG(3);
- if (use_gdb_syscalls()) {
- return common_semi_gdb_syscall(cs, common_semi_cb, "rename,%s,%s",
- arg0, (int)arg1 + 1, arg2,
- (int)arg3 + 1);
- } else {
- char *s2;
- s = lock_user_string(arg0);
- s2 = lock_user_string(arg2);
- if (!s || !s2) {
- errno = EFAULT;
- ret = set_swi_errno(cs, -1);
- } else {
- ret = set_swi_errno(cs, rename(s, s2));
- }
- if (s2)
- unlock_user(s2, arg2, 0);
- if (s)
- unlock_user(s, arg0, 0);
- return ret;
- }
- case TARGET_SYS_CLOCK:
- return clock() / (CLOCKS_PER_SEC / 100);
- case TARGET_SYS_TIME:
- return set_swi_errno(cs, time(NULL));
- case TARGET_SYS_SYSTEM:
- GET_ARG(0);
- GET_ARG(1);
- if (use_gdb_syscalls()) {
- return common_semi_gdb_syscall(cs, common_semi_cb, "system,%s",
- arg0, (int)arg1 + 1);
- } else {
- s = lock_user_string(arg0);
- if (!s) {
- errno = EFAULT;
- return set_swi_errno(cs, -1);
- }
- ret = set_swi_errno(cs, system(s));
- unlock_user(s, arg0, 0);
- return ret;
- }
- case TARGET_SYS_ERRNO:
- return get_swi_errno(cs);
- case TARGET_SYS_GET_CMDLINE:
- {
- /* Build a command-line from the original argv.
- *
- * The inputs are:
- * * arg0, pointer to a buffer of at least the size
- * specified in arg1.
- * * arg1, size of the buffer pointed to by arg0 in
- * bytes.
- *
- * The outputs are:
- * * arg0, pointer to null-terminated string of the
- * command line.
- * * arg1, length of the string pointed to by arg0.
- */
-
- char *output_buffer;
- size_t input_size;
- size_t output_size;
- int status = 0;
-#if !defined(CONFIG_USER_ONLY)
- const char *cmdline;
-#else
- TaskState *ts = cs->opaque;
-#endif
- GET_ARG(0);
- GET_ARG(1);
- input_size = arg1;
- /* Compute the size of the output string. */
-#if !defined(CONFIG_USER_ONLY)
- cmdline = semihosting_get_cmdline();
- if (cmdline == NULL) {
- cmdline = ""; /* Default to an empty line. */
- }
- output_size = strlen(cmdline) + 1; /* Count terminating 0. */
-#else
- unsigned int i;
-
- output_size = ts->info->arg_end - ts->info->arg_start;
- if (!output_size) {
- /*
- * We special-case the "empty command line" case (argc==0).
- * Just provide the terminating 0.
- */
- output_size = 1;
- }
-#endif
-
- if (output_size > input_size) {
- /* Not enough space to store command-line arguments. */
- errno = E2BIG;
- return set_swi_errno(cs, -1);
- }
-
- /* Adjust the command-line length. */
- if (SET_ARG(1, output_size - 1)) {
- /* Couldn't write back to argument block */
- errno = EFAULT;
- return set_swi_errno(cs, -1);
- }
-
- /* Lock the buffer on the ARM side. */
- output_buffer = lock_user(VERIFY_WRITE, arg0, output_size, 0);
- if (!output_buffer) {
- errno = EFAULT;
- return set_swi_errno(cs, -1);
- }
-
- /* Copy the command-line arguments. */
-#if !defined(CONFIG_USER_ONLY)
- pstrcpy(output_buffer, output_size, cmdline);
-#else
- if (output_size == 1) {
- /* Empty command-line. */
- output_buffer[0] = '\0';
- goto out;
- }
-
- if (copy_from_user(output_buffer, ts->info->arg_start,
- output_size)) {
- errno = EFAULT;
- status = set_swi_errno(cs, -1);
- goto out;
- }
-
- /* Separate arguments by white spaces. */
- for (i = 0; i < output_size - 1; i++) {
- if (output_buffer[i] == 0) {
- output_buffer[i] = ' ';
- }
- }
- out:
-#endif
- /* Unlock the buffer on the ARM side. */
- unlock_user(output_buffer, arg0, output_size);
-
- return status;
- }
- case TARGET_SYS_HEAPINFO:
- {
- target_ulong retvals[4];
- target_ulong limit;
- int i;
-#ifdef CONFIG_USER_ONLY
- TaskState *ts = cs->opaque;
-#else
- target_ulong rambase = common_semi_rambase(cs);
-#endif
-
- GET_ARG(0);
-
-#ifdef CONFIG_USER_ONLY
- /*
- * Some C libraries assume the heap immediately follows .bss, so
- * allocate it using sbrk.
- */
- if (!ts->heap_limit) {
- abi_ulong ret;
-
- ts->heap_base = do_brk(0);
- limit = ts->heap_base + COMMON_SEMI_HEAP_SIZE;
- /* Try a big heap, and reduce the size if that fails. */
- for (;;) {
- ret = do_brk(limit);
- if (ret >= limit) {
- break;
- }
- limit = (ts->heap_base >> 1) + (limit >> 1);
- }
- ts->heap_limit = limit;
- }
-
- retvals[0] = ts->heap_base;
- retvals[1] = ts->heap_limit;
- retvals[2] = ts->stack_base;
- retvals[3] = 0; /* Stack limit. */
-#else
- limit = current_machine->ram_size;
- /* TODO: Make this use the limit of the loaded application. */
- retvals[0] = rambase + limit / 2;
- retvals[1] = rambase + limit;
- retvals[2] = rambase + limit; /* Stack base */
- retvals[3] = rambase; /* Stack limit. */
-#endif
-
- for (i = 0; i < ARRAY_SIZE(retvals); i++) {
- bool fail;
-
- fail = SET_ARG(i, retvals[i]);
-
- if (fail) {
- /* Couldn't write back to argument block */
- errno = EFAULT;
- return set_swi_errno(cs, -1);
- }
- }
- return 0;
- }
- case TARGET_SYS_EXIT:
- case TARGET_SYS_EXIT_EXTENDED:
- if (common_semi_sys_exit_extended(cs, nr)) {
- /*
- * The A64 version of SYS_EXIT takes a parameter block,
- * so the application-exit type can return a subcode which
- * is the exit status code from the application.
- * SYS_EXIT_EXTENDED is an a new-in-v2.0 optional function
- * which allows A32/T32 guests to also provide a status code.
- */
- GET_ARG(0);
- GET_ARG(1);
-
- if (arg0 == ADP_Stopped_ApplicationExit) {
- ret = arg1;
- } else {
- ret = 1;
- }
- } else {
- /*
- * The A32/T32 version of SYS_EXIT specifies only
- * Stopped_ApplicationExit as normal exit, but does not
- * allow the guest to specify the exit status code.
- * Everything else is considered an error.
- */
- ret = (args == ADP_Stopped_ApplicationExit) ? 0 : 1;
- }
- gdb_exit(ret);
- exit(ret);
- case TARGET_SYS_ELAPSED:
- elapsed = get_clock() - clock_start;
- if (sizeof(target_ulong) == 8) {
- SET_ARG(0, elapsed);
- } else {
- SET_ARG(0, (uint32_t) elapsed);
- SET_ARG(1, (uint32_t) (elapsed >> 32));
- }
- return 0;
- case TARGET_SYS_TICKFREQ:
- /* qemu always uses nsec */
- return 1000000000;
- case TARGET_SYS_SYNCCACHE:
- /*
- * Clean the D-cache and invalidate the I-cache for the specified
- * virtual address range. This is a nop for us since we don't
- * implement caches. This is only present on A64.
- */
-#ifdef TARGET_ARM
- if (is_a64(cs->env_ptr)) {
- return 0;
- }
-#endif
-#ifdef TARGET_RISCV
- return 0;
-#endif
- /* fall through -- invalid for A32/T32 */
- default:
- fprintf(stderr, "qemu: Unsupported SemiHosting SWI 0x%02x\n", nr);
- cpu_dump_state(cs, stderr, 0);
- abort();
- }
-}
diff --git a/hw/semihosting/common-semi.h b/hw/semihosting/common-semi.h
deleted file mode 100644
index 0bfab1c669..0000000000
--- a/hw/semihosting/common-semi.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Semihosting support for systems modeled on the Arm "Angel"
- * semihosting syscalls design. This includes Arm and RISC-V processors
- *
- * Copyright (c) 2005, 2007 CodeSourcery.
- * Copyright (c) 2019 Linaro
- * Written by Paul Brook.
- *
- * Copyright © 2020 by Keith Packard <keithp@keithp.com>
- * Adapted for systems other than ARM, including RISC-V, by Keith Packard
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- *
- * ARM Semihosting is documented in:
- * Semihosting for AArch32 and AArch64 Release 2.0
- * https://static.docs.arm.com/100863/0200/semihosting.pdf
- *
- * RISC-V Semihosting is documented in:
- * RISC-V Semihosting
- * https://github.com/riscv/riscv-semihosting-spec/blob/main/riscv-semihosting-spec.adoc
- */
-
-#ifndef COMMON_SEMI_H
-#define COMMON_SEMI_H
-
-target_ulong do_common_semihosting(CPUState *cs);
-
-#endif /* COMMON_SEMI_H */
diff --git a/hw/semihosting/config.c b/hw/semihosting/config.c
deleted file mode 100644
index 9807f10cb0..0000000000
--- a/hw/semihosting/config.c
+++ /dev/null
@@ -1,187 +0,0 @@
-/*
- * Semihosting configuration
- *
- * Copyright (c) 2015 Imagination Technologies
- * Copyright (c) 2019 Linaro Ltd
- *
- * This controls the configuration of semihosting for all guest
- * targets that support it. Architecture specific handling is handled
- * in target/HW/HW-semi.c
- *
- * Semihosting is sightly strange in that it is also supported by some
- * linux-user targets. However in that use case no configuration of
- * the outputs and command lines is supported.
- *
- * The config module is common to all softmmu targets however as vl.c
- * needs to link against the helpers.
- *
- * SPDX-License-Identifier: GPL-2.0-or-later
- */
-
-#include "qemu/osdep.h"
-#include "qemu/option.h"
-#include "qemu/config-file.h"
-#include "qemu/error-report.h"
-#include "hw/semihosting/semihost.h"
-#include "chardev/char.h"
-#include "sysemu/sysemu.h"
-
-QemuOptsList qemu_semihosting_config_opts = {
- .name = "semihosting-config",
- .implied_opt_name = "enable",
- .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
- .desc = {
- {
- .name = "enable",
- .type = QEMU_OPT_BOOL,
- }, {
- .name = "target",
- .type = QEMU_OPT_STRING,
- }, {
- .name = "chardev",
- .type = QEMU_OPT_STRING,
- }, {
- .name = "arg",
- .type = QEMU_OPT_STRING,
- },
- { /* end of list */ }
- },
-};
-
-typedef struct SemihostingConfig {
- bool enabled;
- SemihostingTarget target;
- Chardev *chardev;
- const char **argv;
- int argc;
- const char *cmdline; /* concatenated argv */
-} SemihostingConfig;
-
-static SemihostingConfig semihosting;
-static const char *semihost_chardev;
-
-bool semihosting_enabled(void)
-{
- return semihosting.enabled;
-}
-
-SemihostingTarget semihosting_get_target(void)
-{
- return semihosting.target;
-}
-
-const char *semihosting_get_arg(int i)
-{
- if (i >= semihosting.argc) {
- return NULL;
- }
- return semihosting.argv[i];
-}
-
-int semihosting_get_argc(void)
-{
- return semihosting.argc;
-}
-
-const char *semihosting_get_cmdline(void)
-{
- if (semihosting.cmdline == NULL && semihosting.argc > 0) {
- semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
- }
- return semihosting.cmdline;
-}
-
-static int add_semihosting_arg(void *opaque,
- const char *name, const char *val,
- Error **errp)
-{
- SemihostingConfig *s = opaque;
- if (strcmp(name, "arg") == 0) {
- s->argc++;
- /* one extra element as g_strjoinv() expects NULL-terminated array */
- s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
- s->argv[s->argc - 1] = val;
- s->argv[s->argc] = NULL;
- }
- return 0;
-}
-
-/* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
-void semihosting_arg_fallback(const char *file, const char *cmd)
-{
- char *cmd_token;
-
- /* argv[0] */
- add_semihosting_arg(&semihosting, "arg", file, NULL);
-
- /* split -append and initialize argv[1..n] */
- cmd_token = strtok(g_strdup(cmd), " ");
- while (cmd_token) {
- add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
- cmd_token = strtok(NULL, " ");
- }
-}
-
-Chardev *semihosting_get_chardev(void)
-{
- return semihosting.chardev;
-}
-
-void qemu_semihosting_enable(void)
-{
- semihosting.enabled = true;
- semihosting.target = SEMIHOSTING_TARGET_AUTO;
-}
-
-int qemu_semihosting_config_options(const char *optarg)
-{
- QemuOptsList *opt_list = qemu_find_opts("semihosting-config");
- QemuOpts *opts = qemu_opts_parse_noisily(opt_list, optarg, false);
-
- semihosting.enabled = true;
-
- if (opts != NULL) {
- semihosting.enabled = qemu_opt_get_bool(opts, "enable",
- true);
- const char *target = qemu_opt_get(opts, "target");
- /* setup of chardev is deferred until they are initialised */
- semihost_chardev = qemu_opt_get(opts, "chardev");
- if (target != NULL) {
- if (strcmp("native", target) == 0) {
- semihosting.target = SEMIHOSTING_TARGET_NATIVE;
- } else if (strcmp("gdb", target) == 0) {
- semihosting.target = SEMIHOSTING_TARGET_GDB;
- } else if (strcmp("auto", target) == 0) {
- semihosting.target = SEMIHOSTING_TARGET_AUTO;
- } else {
- error_report("unsupported semihosting-config %s",
- optarg);
- return 1;
- }
- } else {
- semihosting.target = SEMIHOSTING_TARGET_AUTO;
- }
- /* Set semihosting argument count and vector */
- qemu_opt_foreach(opts, add_semihosting_arg,
- &semihosting, NULL);
- } else {
- error_report("unsupported semihosting-config %s", optarg);
- return 1;
- }
-
- return 0;
-}
-
-void qemu_semihosting_connect_chardevs(void)
-{
- /* We had to defer this until chardevs were created */
- if (semihost_chardev) {
- Chardev *chr = qemu_chr_find(semihost_chardev);
- if (chr == NULL) {
- error_report("semihosting chardev '%s' not found",
- semihost_chardev);
- exit(1);
- }
- semihosting.chardev = chr;
- }
-}
diff --git a/hw/semihosting/console.c b/hw/semihosting/console.c
deleted file mode 100644
index 9b4fee9260..0000000000
--- a/hw/semihosting/console.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/*
- * Semihosting Console Support
- *
- * Copyright (c) 2015 Imagination Technologies
- * Copyright (c) 2019 Linaro Ltd
- *
- * This provides support for outputting to a semihosting console.
- *
- * While most semihosting implementations support reading and writing
- * to arbitrary file descriptors we treat the console as something
- * specifically for debugging interaction. This means messages can be
- * re-directed to gdb (if currently being used to debug) or even
- * re-directed elsewhere.
- *
- * SPDX-License-Identifier: GPL-2.0-or-later
- */
-
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "hw/semihosting/semihost.h"
-#include "hw/semihosting/console.h"
-#include "exec/gdbstub.h"
-#include "exec/exec-all.h"
-#include "qemu/log.h"
-#include "chardev/char.h"
-#include "chardev/char-fe.h"
-#include "sysemu/sysemu.h"
-#include "qemu/main-loop.h"
-#include "qapi/error.h"
-#include "qemu/fifo8.h"
-
-int qemu_semihosting_log_out(const char *s, int len)
-{
- Chardev *chardev = semihosting_get_chardev();
- if (chardev) {
- return qemu_chr_write_all(chardev, (uint8_t *) s, len);
- } else {
- return write(STDERR_FILENO, s, len);
- }
-}
-
-/*
- * A re-implementation of lock_user_string that we can use locally
- * instead of relying on softmmu-semi. Hopefully we can deprecate that
- * in time. Copy string until we find a 0 or address error.
- */
-static GString *copy_user_string(CPUArchState *env, target_ulong addr)
-{
- CPUState *cpu = env_cpu(env);
- GString *s = g_string_sized_new(128);
- uint8_t c;
-
- do {
- if (cpu_memory_rw_debug(cpu, addr++, &c, 1, 0) == 0) {
- if (c) {
- s = g_string_append_c(s, c);
- }
- } else {
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: passed inaccessible address " TARGET_FMT_lx,
- __func__, addr);
- break;
- }
- } while (c!=0);
-
- return s;
-}
-
-static void semihosting_cb(CPUState *cs, target_ulong ret, target_ulong err)
-{
- if (ret == (target_ulong) -1) {
- qemu_log("%s: gdb console output failed ("TARGET_FMT_ld")",
- __func__, err);
- }
-}
-
-int qemu_semihosting_console_outs(CPUArchState *env, target_ulong addr)
-{
- GString *s = copy_user_string(env, addr);
- int out = s->len;
-
- if (use_gdb_syscalls()) {
- gdb_do_syscall(semihosting_cb, "write,2,%x,%x", addr, s->len);
- } else {
- out = qemu_semihosting_log_out(s->str, s->len);
- }
-
- g_string_free(s, true);
- return out;
-}
-
-void qemu_semihosting_console_outc(CPUArchState *env, target_ulong addr)
-{
- CPUState *cpu = env_cpu(env);
- uint8_t c;
-
- if (cpu_memory_rw_debug(cpu, addr, &c, 1, 0) == 0) {
- if (use_gdb_syscalls()) {
- gdb_do_syscall(semihosting_cb, "write,2,%x,%x", addr, 1);
- } else {
- qemu_semihosting_log_out((const char *) &c, 1);
- }
- } else {
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: passed inaccessible address " TARGET_FMT_lx,
- __func__, addr);
- }
-}
-
-#define FIFO_SIZE 1024
-
-/* Access to this structure is protected by the BQL */
-typedef struct SemihostingConsole {
- CharBackend backend;
- GSList *sleeping_cpus;
- bool got;
- Fifo8 fifo;
-} SemihostingConsole;
-
-static SemihostingConsole console;
-
-static int console_can_read(void *opaque)
-{
- SemihostingConsole *c = opaque;
- int ret;
- g_assert(qemu_mutex_iothread_locked());
- ret = (int) fifo8_num_free(&c->fifo);
- return ret;
-}
-
-static void console_wake_up(gpointer data, gpointer user_data)
-{
- CPUState *cs = (CPUState *) data;
- /* cpu_handle_halt won't know we have work so just unbung here */
- cs->halted = 0;
- qemu_cpu_kick(cs);
-}
-
-static void console_read(void *opaque, const uint8_t *buf, int size)
-{
- SemihostingConsole *c = opaque;
- g_assert(qemu_mutex_iothread_locked());
- while (size-- && !fifo8_is_full(&c->fifo)) {
- fifo8_push(&c->fifo, *buf++);
- }
- g_slist_foreach(c->sleeping_cpus, console_wake_up, NULL);
- c->sleeping_cpus = NULL;
-}
-
-target_ulong qemu_semihosting_console_inc(CPUArchState *env)
-{
- uint8_t ch;
- SemihostingConsole *c = &console;
- g_assert(qemu_mutex_iothread_locked());
- g_assert(current_cpu);
- if (fifo8_is_empty(&c->fifo)) {
- c->sleeping_cpus = g_slist_prepend(c->sleeping_cpus, current_cpu);
- current_cpu->halted = 1;
- current_cpu->exception_index = EXCP_HALTED;
- cpu_loop_exit(current_cpu);
- /* never returns */
- }
- ch = fifo8_pop(&c->fifo);
- return (target_ulong) ch;
-}
-
-void qemu_semihosting_console_init(void)
-{
- Chardev *chr = semihosting_get_chardev();
-
- if (chr) {
- fifo8_create(&console.fifo, FIFO_SIZE);
- qemu_chr_fe_init(&console.backend, chr, &error_abort);
- qemu_chr_fe_set_handlers(&console.backend,
- console_can_read,
- console_read,
- NULL, NULL, &console,
- NULL, true);
- }
-}
diff --git a/hw/semihosting/meson.build b/hw/semihosting/meson.build
deleted file mode 100644
index ea8090abe3..0000000000
--- a/hw/semihosting/meson.build
+++ /dev/null
@@ -1,7 +0,0 @@
-specific_ss.add(when: 'CONFIG_SEMIHOSTING', if_true: files(
- 'config.c',
- 'console.c',
-))
-
-specific_ss.add(when: ['CONFIG_ARM_COMPATIBLE_SEMIHOSTING'],
- if_true: files('arm-compat-semi.c'))
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-14 19:07:36 +0000