diff options
Diffstat (limited to 'hw/i386/acpi-build.c')
| -rw-r--r-- | hw/i386/acpi-build.c | 75 |
1 files changed, 68 insertions, 7 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 1e0aa09..ebc5f03 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -37,6 +37,7 @@ #include "bios-linker-loader.h" #include "hw/loader.h" #include "hw/isa/isa.h" +#include "hw/acpi/memory_hotplug.h" /* Supported chipsets: */ #include "hw/acpi/piix4.h" @@ -667,6 +668,14 @@ static inline char acpi_get_hex(uint32_t val) #define ACPI_PCIQXL_SIZEOF (*ssdt_pciqxl_end - *ssdt_pciqxl_start) #define ACPI_PCIQXL_AML (ssdp_pcihp_aml + *ssdt_pciqxl_start) +#include "hw/i386/ssdt-mem.hex" + +/* 0x5B 0x82 DeviceOp PkgLength NameString DimmID */ +#define ACPI_MEM_OFFSET_HEX (*ssdt_mem_name - *ssdt_mem_start + 2) +#define ACPI_MEM_OFFSET_ID (*ssdt_mem_id - *ssdt_mem_start + 7) +#define ACPI_MEM_SIZEOF (*ssdt_mem_end - *ssdt_mem_start) +#define ACPI_MEM_AML (ssdm_mem_aml + *ssdt_mem_start) + #define ACPI_SSDT_SIGNATURE 0x54445353 /* SSDT */ #define ACPI_SSDT_HEADER_LENGTH 36 @@ -1003,6 +1012,8 @@ build_ssdt(GArray *table_data, GArray *linker, AcpiCpuInfo *cpu, AcpiPmInfo *pm, AcpiMiscInfo *misc, PcPciInfo *pci, PcGuestInfo *guest_info) { + MachineState *machine = MACHINE(qdev_get_machine()); + uint32_t nr_mem = machine->ram_slots; unsigned acpi_cpus = guest_info->apic_id_limit; int ssdt_start = table_data->len; uint8_t *ssdt_ptr; @@ -1031,6 +1042,9 @@ build_ssdt(GArray *table_data, GArray *linker, ACPI_BUILD_SET_LE(ssdt_ptr, sizeof(ssdp_misc_aml), ssdt_isa_pest[0], 16, misc->pvpanic_port); + ACPI_BUILD_SET_LE(ssdt_ptr, sizeof(ssdp_misc_aml), + ssdt_mctrl_nr_slots[0], 32, nr_mem); + { GArray *sb_scope = build_alloc_array(); uint8_t op = 0x10; /* ScopeOp */ @@ -1084,6 +1098,27 @@ build_ssdt(GArray *table_data, GArray *linker, build_free_array(package); } + if (nr_mem) { + assert(nr_mem <= ACPI_MAX_RAM_SLOTS); + /* build memory devices */ + for (i = 0; i < nr_mem; i++) { + char id[3]; + uint8_t *mem = acpi_data_push(sb_scope, ACPI_MEM_SIZEOF); + + snprintf(id, sizeof(id), "%02X", i); + memcpy(mem, ACPI_MEM_AML, ACPI_MEM_SIZEOF); + memcpy(mem + ACPI_MEM_OFFSET_HEX, id, 2); + memcpy(mem + ACPI_MEM_OFFSET_ID, id, 2); + } + + /* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) { + * If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ... + */ + build_append_notify_method(sb_scope, + stringify(MEMORY_SLOT_NOTIFY_METHOD), + "MP%0.02X", nr_mem); + } + { AcpiBuildPciBusHotplugState hotplug_state; Object *pci_host; @@ -1132,15 +1167,22 @@ build_hpet(GArray *table_data, GArray *linker) (void *)hpet, "HPET", sizeof(*hpet), 1); } +typedef enum { + MEM_AFFINITY_NOFLAGS = 0, + MEM_AFFINITY_ENABLED = (1 << 0), + MEM_AFFINITY_HOTPLUGGABLE = (1 << 1), + MEM_AFFINITY_NON_VOLATILE = (1 << 2), +} MemoryAffinityFlags; + static void -acpi_build_srat_memory(AcpiSratMemoryAffinity *numamem, - uint64_t base, uint64_t len, int node, int enabled) +acpi_build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base, + uint64_t len, int node, MemoryAffinityFlags flags) { numamem->type = ACPI_SRAT_MEMORY; numamem->length = sizeof(*numamem); memset(numamem->proximity, 0, 4); numamem->proximity[0] = node; - numamem->flags = cpu_to_le32(!!enabled); + numamem->flags = cpu_to_le32(flags); numamem->base_addr = cpu_to_le64(base); numamem->range_length = cpu_to_le64(len); } @@ -1157,6 +1199,10 @@ build_srat(GArray *table_data, GArray *linker, uint64_t curnode; int srat_start, numa_start, slots; uint64_t mem_len, mem_base, next_base; + PCMachineState *pcms = PC_MACHINE(qdev_get_machine()); + ram_addr_t hotplugabble_address_space_size = + object_property_get_int(OBJECT(pcms), PC_MACHINE_MEMHP_REGION_SIZE, + NULL); srat_start = table_data->len; @@ -1188,7 +1234,7 @@ build_srat(GArray *table_data, GArray *linker, numa_start = table_data->len; numamem = acpi_data_push(table_data, sizeof *numamem); - acpi_build_srat_memory(numamem, 0, 640*1024, 0, 1); + acpi_build_srat_memory(numamem, 0, 640*1024, 0, MEM_AFFINITY_ENABLED); next_base = 1024 * 1024; for (i = 1; i < guest_info->numa_nodes + 1; ++i) { mem_base = next_base; @@ -1204,19 +1250,34 @@ build_srat(GArray *table_data, GArray *linker, mem_len -= next_base - guest_info->ram_size_below_4g; if (mem_len > 0) { numamem = acpi_data_push(table_data, sizeof *numamem); - acpi_build_srat_memory(numamem, mem_base, mem_len, i-1, 1); + acpi_build_srat_memory(numamem, mem_base, mem_len, i - 1, + MEM_AFFINITY_ENABLED); } mem_base = 1ULL << 32; mem_len = next_base - guest_info->ram_size_below_4g; next_base += (1ULL << 32) - guest_info->ram_size_below_4g; } numamem = acpi_data_push(table_data, sizeof *numamem); - acpi_build_srat_memory(numamem, mem_base, mem_len, i - 1, 1); + acpi_build_srat_memory(numamem, mem_base, mem_len, i - 1, + MEM_AFFINITY_ENABLED); } slots = (table_data->len - numa_start) / sizeof *numamem; for (; slots < guest_info->numa_nodes + 2; slots++) { numamem = acpi_data_push(table_data, sizeof *numamem); - acpi_build_srat_memory(numamem, 0, 0, 0, 0); + acpi_build_srat_memory(numamem, 0, 0, 0, MEM_AFFINITY_NOFLAGS); + } + + /* + * Entry is required for Windows to enable memory hotplug in OS. + * Memory devices may override proximity set by this entry, + * providing _PXM method if necessary. + */ + if (hotplugabble_address_space_size) { + numamem = acpi_data_push(table_data, sizeof *numamem); + acpi_build_srat_memory(numamem, pcms->hotplug_memory_base, + hotplugabble_address_space_size, 0, + MEM_AFFINITY_HOTPLUGGABLE | + MEM_AFFINITY_ENABLED); } build_header(linker, table_data, |
