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-rw-r--r--hw/acpi/cpu_hotplug_acpi_table.c104
-rw-r--r--hw/i386/acpi-build.c112
-rw-r--r--include/hw/acpi/cpu_hotplug.h3
3 files changed, 106 insertions, 113 deletions
diff --git a/hw/acpi/cpu_hotplug_acpi_table.c b/hw/acpi/cpu_hotplug_acpi_table.c
index 97bb1092a2..730f44c4f7 100644
--- a/hw/acpi/cpu_hotplug_acpi_table.c
+++ b/hw/acpi/cpu_hotplug_acpi_table.c
@@ -15,12 +15,19 @@
#include "qemu/osdep.h"
#include "hw/acpi/cpu_hotplug.h"
+#include "hw/i386/pc.h"
-void build_cpu_hotplug_aml(Aml *ctx)
+void build_cpu_hotplug_aml(Aml *ctx, MachineState *machine,
+ uint16_t io_base, uint16_t io_len)
{
+ Aml *dev;
+ Aml *crs;
+ Aml *pkg;
+ Aml *field;
Aml *method;
Aml *if_ctx;
Aml *else_ctx;
+ int i, apic_idx;
Aml *sb_scope = aml_scope("_SB");
uint8_t madt_tmpl[8] = {0x00, 0x08, 0x00, 0x00, 0x00, 0, 0, 0};
Aml *cpu_id = aml_arg(0);
@@ -29,6 +36,9 @@ void build_cpu_hotplug_aml(Aml *ctx)
Aml *cpus_map = aml_name(CPU_ON_BITMAP);
Aml *zero = aml_int(0);
Aml *one = aml_int(1);
+ MachineClass *mc = MACHINE_GET_CLASS(machine);
+ CPUArchIdList *apic_ids = mc->possible_cpu_arch_ids(machine);
+ PCMachineState *pcms = PC_MACHINE(machine);
/*
* _MAT method - creates an madt apic buffer
@@ -132,5 +142,97 @@ void build_cpu_hotplug_aml(Aml *ctx)
}
aml_append(sb_scope, method);
+ /* The current AML generator can cover the APIC ID range [0..255],
+ * inclusive, for VCPU hotplug. */
+ QEMU_BUILD_BUG_ON(ACPI_CPU_HOTPLUG_ID_LIMIT > 256);
+ g_assert(pcms->apic_id_limit <= ACPI_CPU_HOTPLUG_ID_LIMIT);
+
+ /* create PCI0.PRES device and its _CRS to reserve CPU hotplug MMIO */
+ dev = aml_device("PCI0." stringify(CPU_HOTPLUG_RESOURCE_DEVICE));
+ aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A06")));
+ aml_append(dev,
+ aml_name_decl("_UID", aml_string("CPU Hotplug resources"))
+ );
+ /* device present, functioning, decoding, not shown in UI */
+ aml_append(dev, aml_name_decl("_STA", aml_int(0xB)));
+ crs = aml_resource_template();
+ aml_append(crs,
+ aml_io(AML_DECODE16, io_base, io_base, 1, io_len)
+ );
+ aml_append(dev, aml_name_decl("_CRS", crs));
+ aml_append(sb_scope, dev);
+ /* declare CPU hotplug MMIO region and PRS field to access it */
+ aml_append(sb_scope, aml_operation_region(
+ "PRST", AML_SYSTEM_IO, aml_int(io_base), io_len));
+ field = aml_field("PRST", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
+ aml_append(field, aml_named_field("PRS", 256));
+ aml_append(sb_scope, field);
+
+ /* build Processor object for each processor */
+ for (i = 0; i < apic_ids->len; i++) {
+ int apic_id = apic_ids->cpus[i].arch_id;
+
+ assert(apic_id < ACPI_CPU_HOTPLUG_ID_LIMIT);
+
+ dev = aml_processor(apic_id, 0, 0, "CP%.02X", apic_id);
+
+ method = aml_method("_MAT", 0, AML_NOTSERIALIZED);
+ aml_append(method,
+ aml_return(aml_call1(CPU_MAT_METHOD, aml_int(apic_id))));
+ aml_append(dev, method);
+
+ method = aml_method("_STA", 0, AML_NOTSERIALIZED);
+ aml_append(method,
+ aml_return(aml_call1(CPU_STATUS_METHOD, aml_int(apic_id))));
+ aml_append(dev, method);
+
+ method = aml_method("_EJ0", 1, AML_NOTSERIALIZED);
+ aml_append(method,
+ aml_return(aml_call2(CPU_EJECT_METHOD, aml_int(apic_id),
+ aml_arg(0)))
+ );
+ aml_append(dev, method);
+
+ aml_append(sb_scope, dev);
+ }
+
+ /* build this code:
+ * Method(NTFY, 2) {If (LEqual(Arg0, 0x00)) {Notify(CP00, Arg1)} ...}
+ */
+ /* Arg0 = Processor ID = APIC ID */
+ method = aml_method(AML_NOTIFY_METHOD, 2, AML_NOTSERIALIZED);
+ for (i = 0; i < apic_ids->len; i++) {
+ int apic_id = apic_ids->cpus[i].arch_id;
+
+ if_ctx = aml_if(aml_equal(aml_arg(0), aml_int(apic_id)));
+ aml_append(if_ctx,
+ aml_notify(aml_name("CP%.02X", apic_id), aml_arg(1))
+ );
+ aml_append(method, if_ctx);
+ }
+ aml_append(sb_scope, method);
+
+ /* build "Name(CPON, Package() { One, One, ..., Zero, Zero, ... })"
+ *
+ * Note: The ability to create variable-sized packages was first
+ * introduced in ACPI 2.0. ACPI 1.0 only allowed fixed-size packages
+ * ith up to 255 elements. Windows guests up to win2k8 fail when
+ * VarPackageOp is used.
+ */
+ pkg = pcms->apic_id_limit <= 255 ? aml_package(pcms->apic_id_limit) :
+ aml_varpackage(pcms->apic_id_limit);
+
+ for (i = 0, apic_idx = 0; i < apic_ids->len; i++) {
+ int apic_id = apic_ids->cpus[i].arch_id;
+
+ for (; apic_idx < apic_id; apic_idx++) {
+ aml_append(pkg, aml_int(0));
+ }
+ aml_append(pkg, aml_int(apic_ids->cpus[i].cpu ? 1 : 0));
+ apic_idx = apic_id + 1;
+ }
+ aml_append(sb_scope, aml_name_decl(CPU_ON_BITMAP, pkg));
+ g_free(apic_ids);
+
aml_append(ctx, sb_scope);
}
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index ff98ad81de..822230f7a5 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -943,114 +943,6 @@ static Aml *build_crs(PCIHostState *host,
return crs;
}
-static void build_processor_devices(Aml *sb_scope, MachineState *machine,
- AcpiPmInfo *pm)
-{
- int i, apic_idx;
- Aml *dev;
- Aml *crs;
- Aml *pkg;
- Aml *field;
- Aml *ifctx;
- Aml *method;
- MachineClass *mc = MACHINE_GET_CLASS(machine);
- CPUArchIdList *apic_ids = mc->possible_cpu_arch_ids(machine);
- PCMachineState *pcms = PC_MACHINE(machine);
-
- /* The current AML generator can cover the APIC ID range [0..255],
- * inclusive, for VCPU hotplug. */
- QEMU_BUILD_BUG_ON(ACPI_CPU_HOTPLUG_ID_LIMIT > 256);
- g_assert(pcms->apic_id_limit <= ACPI_CPU_HOTPLUG_ID_LIMIT);
-
- /* create PCI0.PRES device and its _CRS to reserve CPU hotplug MMIO */
- dev = aml_device("PCI0." stringify(CPU_HOTPLUG_RESOURCE_DEVICE));
- aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A06")));
- aml_append(dev,
- aml_name_decl("_UID", aml_string("CPU Hotplug resources"))
- );
- /* device present, functioning, decoding, not shown in UI */
- aml_append(dev, aml_name_decl("_STA", aml_int(0xB)));
- crs = aml_resource_template();
- aml_append(crs,
- aml_io(AML_DECODE16, pm->cpu_hp_io_base, pm->cpu_hp_io_base, 1,
- pm->cpu_hp_io_len)
- );
- aml_append(dev, aml_name_decl("_CRS", crs));
- aml_append(sb_scope, dev);
- /* declare CPU hotplug MMIO region and PRS field to access it */
- aml_append(sb_scope, aml_operation_region(
- "PRST", AML_SYSTEM_IO, aml_int(pm->cpu_hp_io_base), pm->cpu_hp_io_len));
- field = aml_field("PRST", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
- aml_append(field, aml_named_field("PRS", 256));
- aml_append(sb_scope, field);
-
- /* build Processor object for each processor */
- for (i = 0; i < apic_ids->len; i++) {
- int apic_id = apic_ids->cpus[i].arch_id;
-
- assert(apic_id < ACPI_CPU_HOTPLUG_ID_LIMIT);
-
- dev = aml_processor(apic_id, 0, 0, "CP%.02X", apic_id);
-
- method = aml_method("_MAT", 0, AML_NOTSERIALIZED);
- aml_append(method,
- aml_return(aml_call1(CPU_MAT_METHOD, aml_int(apic_id))));
- aml_append(dev, method);
-
- method = aml_method("_STA", 0, AML_NOTSERIALIZED);
- aml_append(method,
- aml_return(aml_call1(CPU_STATUS_METHOD, aml_int(apic_id))));
- aml_append(dev, method);
-
- method = aml_method("_EJ0", 1, AML_NOTSERIALIZED);
- aml_append(method,
- aml_return(aml_call2(CPU_EJECT_METHOD, aml_int(apic_id),
- aml_arg(0)))
- );
- aml_append(dev, method);
-
- aml_append(sb_scope, dev);
- }
-
- /* build this code:
- * Method(NTFY, 2) {If (LEqual(Arg0, 0x00)) {Notify(CP00, Arg1)} ...}
- */
- /* Arg0 = Processor ID = APIC ID */
- method = aml_method(AML_NOTIFY_METHOD, 2, AML_NOTSERIALIZED);
- for (i = 0; i < apic_ids->len; i++) {
- int apic_id = apic_ids->cpus[i].arch_id;
-
- ifctx = aml_if(aml_equal(aml_arg(0), aml_int(apic_id)));
- aml_append(ifctx,
- aml_notify(aml_name("CP%.02X", apic_id), aml_arg(1))
- );
- aml_append(method, ifctx);
- }
- aml_append(sb_scope, method);
-
- /* build "Name(CPON, Package() { One, One, ..., Zero, Zero, ... })"
- *
- * Note: The ability to create variable-sized packages was first
- * introduced in ACPI 2.0. ACPI 1.0 only allowed fixed-size packages
- * ith up to 255 elements. Windows guests up to win2k8 fail when
- * VarPackageOp is used.
- */
- pkg = pcms->apic_id_limit <= 255 ? aml_package(pcms->apic_id_limit) :
- aml_varpackage(pcms->apic_id_limit);
-
- for (i = 0, apic_idx = 0; i < apic_ids->len; i++) {
- int apic_id = apic_ids->cpus[i].arch_id;
-
- for (; apic_idx < apic_id; apic_idx++) {
- aml_append(pkg, aml_int(0));
- }
- aml_append(pkg, aml_int(apic_ids->cpus[i].cpu ? 1 : 0));
- apic_idx = apic_id + 1;
- }
- aml_append(sb_scope, aml_name_decl(CPU_ON_BITMAP, pkg));
- g_free(apic_ids);
-}
-
static void build_memory_devices(Aml *sb_scope, int nr_mem,
uint16_t io_base, uint16_t io_len)
{
@@ -2043,7 +1935,7 @@ build_dsdt(GArray *table_data, GArray *linker,
build_q35_pci0_int(dsdt);
}
- build_cpu_hotplug_aml(dsdt);
+ build_cpu_hotplug_aml(dsdt, machine, pm->cpu_hp_io_base, pm->cpu_hp_io_len);
build_memory_hotplug_aml(dsdt, nr_mem, pm->mem_hp_io_base,
pm->mem_hp_io_len);
@@ -2305,8 +2197,6 @@ build_dsdt(GArray *table_data, GArray *linker,
sb_scope = aml_scope("\\_SB");
{
- build_processor_devices(sb_scope, machine, pm);
-
build_memory_devices(sb_scope, nr_mem, pm->mem_hp_io_base,
pm->mem_hp_io_len);
diff --git a/include/hw/acpi/cpu_hotplug.h b/include/hw/acpi/cpu_hotplug.h
index f22640e389..9b1d0cf785 100644
--- a/include/hw/acpi/cpu_hotplug.h
+++ b/include/hw/acpi/cpu_hotplug.h
@@ -34,5 +34,6 @@ void acpi_cpu_hotplug_init(MemoryRegion *parent, Object *owner,
#define CPU_STATUS_MAP "PRS"
#define CPU_SCAN_METHOD "PRSC"
-void build_cpu_hotplug_aml(Aml *ctx);
+void build_cpu_hotplug_aml(Aml *ctx, MachineState *machine,
+ uint16_t io_base, uint16_t io_len);
#endif
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-26 20:28:12 +0000