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| author | Stefan Hajnoczi <stefanha@redhat.com> | 2023-10-16 12:37:35 -0400 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2023-10-16 12:37:35 -0400 |
| commit | 9390f0fd3e30ac61e94ea2fc4a923d88ed486645 (patch) | |
| tree | e3416e881518a09f140ca0bb51d9c419c737045c /hw | |
| parent | 2778f754e68425ba65ba97fa57001b371432d70f (diff) | |
| parent | 1bea6930ca7b9587ea8d8fbb77069b6a13aa031a (diff) | |
Merge tag 'pull-loongarch-20231013' of https://gitlab.com/gaosong/qemu into staging
pull-loongarch-20231013
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# gpg: Signature made Thu 12 Oct 2023 22:06:45 EDT
# gpg: using RSA key B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
# gpg: Good signature from "Song Gao <m17746591750@163.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B8FF 1DA0 D2FD CB2D A09C 6C2C 40A2 FFF2 3926 3EDF
* tag 'pull-loongarch-20231013' of https://gitlab.com/gaosong/qemu:
LoongArch: step down as general arch maintainer
hw/loongarch/virt: Remove unused 'loongarch_virt_pm' region
hw/loongarch/virt: Remove unused ISA Bus
hw/loongarch/virt: Remove unused ISA UART
hw/loongarch: remove global loaderparams variable
target/loongarch: Add preldx instruction
target/loongarch: fix ASXE flag conflict
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/loongarch/Kconfig | 2 | ||||
| -rw-r--r-- | hw/loongarch/virt.c | 103 |
2 files changed, 28 insertions, 77 deletions
diff --git a/hw/loongarch/Kconfig b/hw/loongarch/Kconfig index 1e7c5b43c5..5727efed6d 100644 --- a/hw/loongarch/Kconfig +++ b/hw/loongarch/Kconfig @@ -5,9 +5,7 @@ config LOONGARCH_VIRT imply VIRTIO_VGA imply PCI_DEVICES imply NVDIMM - select ISA_BUS select SERIAL - select SERIAL_ISA select VIRTIO_PCI select PLATFORM_BUS select LOONGARCH_IPI diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index b0a004f860..2952fe452e 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -47,6 +47,13 @@ #include "qemu/error-report.h" +struct loaderparams { + uint64_t ram_size; + const char *kernel_filename; + const char *kernel_cmdline; + const char *initrd_filename; +}; + static void virt_flash_create(LoongArchMachineState *lams) { DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01); @@ -301,10 +308,6 @@ static void fdt_add_memory_node(MachineState *ms, g_free(nodename); } -#define PM_BASE 0x10080000 -#define PM_SIZE 0x100 -#define PM_CTRL 0x10 - static void virt_build_smbios(LoongArchMachineState *lams) { MachineState *ms = MACHINE(lams); @@ -373,62 +376,17 @@ static void memmap_add_entry(uint64_t address, uint64_t length, uint32_t type) memmap_entries++; } -/* - * This is a placeholder for missing ACPI, - * and will eventually be replaced. - */ -static uint64_t loongarch_virt_pm_read(void *opaque, hwaddr addr, unsigned size) -{ - return 0; -} - -static void loongarch_virt_pm_write(void *opaque, hwaddr addr, - uint64_t val, unsigned size) -{ - if (addr != PM_CTRL) { - return; - } - - switch (val) { - case 0x00: - qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); - return; - case 0xff: - qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); - return; - default: - return; - } -} - -static const MemoryRegionOps loongarch_virt_pm_ops = { - .read = loongarch_virt_pm_read, - .write = loongarch_virt_pm_write, - .endianness = DEVICE_NATIVE_ENDIAN, - .valid = { - .min_access_size = 1, - .max_access_size = 1 - } -}; - -static struct _loaderparams { - uint64_t ram_size; - const char *kernel_filename; - const char *kernel_cmdline; - const char *initrd_filename; -} loaderparams; - static uint64_t cpu_loongarch_virt_to_phys(void *opaque, uint64_t addr) { return addr & MAKE_64BIT_MASK(0, TARGET_PHYS_ADDR_SPACE_BITS); } -static int64_t load_kernel_info(void) +static int64_t load_kernel_info(const struct loaderparams *loaderparams) { uint64_t kernel_entry, kernel_low, kernel_high; ssize_t kernel_size; - kernel_size = load_elf(loaderparams.kernel_filename, NULL, + kernel_size = load_elf(loaderparams->kernel_filename, NULL, cpu_loongarch_virt_to_phys, NULL, &kernel_entry, &kernel_low, &kernel_high, NULL, 0, @@ -436,7 +394,7 @@ static int64_t load_kernel_info(void) if (kernel_size < 0) { error_report("could not load kernel '%s': %s", - loaderparams.kernel_filename, + loaderparams->kernel_filename, load_elf_strerror(kernel_size)); exit(1); } @@ -500,7 +458,7 @@ static void loongarch_devices_init(DeviceState *pch_pic, LoongArchMachineState * SysBusDevice *d; PCIBus *pci_bus; MemoryRegion *ecam_alias, *ecam_reg, *pio_alias, *pio_reg; - MemoryRegion *mmio_alias, *mmio_reg, *pm_mem; + MemoryRegion *mmio_alias, *mmio_reg; int i; gpex_dev = qdev_new(TYPE_GPEX_HOST); @@ -560,10 +518,6 @@ static void loongarch_devices_init(DeviceState *pch_pic, LoongArchMachineState * VIRT_RTC_IRQ - VIRT_GSI_BASE)); fdt_add_rtc_node(lams); - pm_mem = g_new(MemoryRegion, 1); - memory_region_init_io(pm_mem, NULL, &loongarch_virt_pm_ops, - NULL, "loongarch_virt_pm", PM_SIZE); - memory_region_add_subregion(get_system_memory(), PM_BASE, pm_mem); /* acpi ged */ lams->acpi_ged = create_acpi_ged(pch_pic, lams); /* platform bus */ @@ -728,7 +682,8 @@ static void reset_load_elf(void *opaque) } } -static void fw_cfg_add_kernel_info(FWCfgState *fw_cfg) +static void fw_cfg_add_kernel_info(const struct loaderparams *loaderparams, + FWCfgState *fw_cfg) { /* * Expose the kernel, the command line, and the initrd in fw_cfg. @@ -737,36 +692,38 @@ static void fw_cfg_add_kernel_info(FWCfgState *fw_cfg) */ load_image_to_fw_cfg(fw_cfg, FW_CFG_KERNEL_SIZE, FW_CFG_KERNEL_DATA, - loaderparams.kernel_filename, + loaderparams->kernel_filename, false); - if (loaderparams.initrd_filename) { + if (loaderparams->initrd_filename) { load_image_to_fw_cfg(fw_cfg, FW_CFG_INITRD_SIZE, FW_CFG_INITRD_DATA, - loaderparams.initrd_filename, false); + loaderparams->initrd_filename, false); } - if (loaderparams.kernel_cmdline) { + if (loaderparams->kernel_cmdline) { fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, - strlen(loaderparams.kernel_cmdline) + 1); + strlen(loaderparams->kernel_cmdline) + 1); fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, - loaderparams.kernel_cmdline); + loaderparams->kernel_cmdline); } } -static void loongarch_firmware_boot(LoongArchMachineState *lams) +static void loongarch_firmware_boot(LoongArchMachineState *lams, + const struct loaderparams *loaderparams) { - fw_cfg_add_kernel_info(lams->fw_cfg); + fw_cfg_add_kernel_info(loaderparams, lams->fw_cfg); } -static void loongarch_direct_kernel_boot(LoongArchMachineState *lams) +static void loongarch_direct_kernel_boot(LoongArchMachineState *lams, + const struct loaderparams *loaderparams) { MachineState *machine = MACHINE(lams); int64_t kernel_addr = 0; LoongArchCPU *lacpu; int i; - kernel_addr = load_kernel_info(); + kernel_addr = load_kernel_info(loaderparams); if (!machine->firmware) { for (i = 0; i < machine->smp.cpus; i++) { lacpu = LOONGARCH_CPU(qemu_get_cpu(i)); @@ -793,6 +750,7 @@ static void loongarch_init(MachineState *machine) MachineClass *mc = MACHINE_GET_CLASS(machine); CPUState *cpu; char *ramName = NULL; + struct loaderparams loaderparams = { }; if (!cpu_model) { cpu_model = LOONGARCH_CPU_TYPE_NAME("la464"); @@ -874,11 +832,6 @@ static void loongarch_init(MachineState *machine) machine_memory_devices_init(machine, device_mem_base, device_mem_size); } - /* Add isa io region */ - memory_region_init_alias(&lams->isa_io, NULL, "isa-io", - get_system_io(), 0, VIRT_ISA_IO_SIZE); - memory_region_add_subregion(address_space_mem, VIRT_ISA_IO_BASE, - &lams->isa_io); /* load the BIOS image. */ loongarch_firmware_init(lams); @@ -898,9 +851,9 @@ static void loongarch_init(MachineState *machine) /* load the kernel. */ if (loaderparams.kernel_filename) { if (lams->bios_loaded) { - loongarch_firmware_boot(lams); + loongarch_firmware_boot(lams, &loaderparams); } else { - loongarch_direct_kernel_boot(lams); + loongarch_direct_kernel_boot(lams, &loaderparams); } } fdt_add_flash_node(lams); |