diff options
Diffstat (limited to 'pc-bios/bios-pq')
| -rw-r--r-- | pc-bios/bios-pq/0014_add-srat-acpi-table-support.patch | 305 | ||||
| -rw-r--r-- | pc-bios/bios-pq/series | 1 |
2 files changed, 306 insertions, 0 deletions
diff --git a/pc-bios/bios-pq/0014_add-srat-acpi-table-support.patch b/pc-bios/bios-pq/0014_add-srat-acpi-table-support.patch new file mode 100644 index 0000000000..a5227df259 --- /dev/null +++ b/pc-bios/bios-pq/0014_add-srat-acpi-table-support.patch @@ -0,0 +1,305 @@ +add SRAT ACPI table support (Andre Przywara) + +Take NUMA topology info from the QEMU firmware configuration interface +(number of nodes, node for each (V)CPU and amount of memory) and build +a SRAT table describing this topology for the guest OS. Handles more than +4 GB of RAM by including a hole for 32bit PCI memory mapping. + +Signed-off-by: Andre Przywara <andre.przywara@amd.com> +Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> + +diff --git a/bios/rombios32.c b/bios/rombios32.c +index 49dfd62..d8f6d4e 100644 +--- a/bios/rombios32.c ++++ b/bios/rombios32.c +@@ -450,6 +450,11 @@ int pm_sci_int; + unsigned long bios_table_cur_addr; + unsigned long bios_table_end_addr; + ++static inline uint64_t le64_to_cpu(uint64_t x) ++{ ++ return x; ++} ++ + void wrmsr_smp(uint32_t index, uint64_t val) + { + static struct { uint32_t ecx, eax, edx; } *p = (void *)SMP_MSR_ADDR; +@@ -468,6 +473,7 @@ void wrmsr_smp(uint32_t index, uint64_t val) + #define QEMU_CFG_SIGNATURE 0x00 + #define QEMU_CFG_ID 0x01 + #define QEMU_CFG_UUID 0x02 ++#define QEMU_CFG_NUMA 0x0D + #define QEMU_CFG_ARCH_LOCAL 0x8000 + #define QEMU_CFG_ACPI_TABLES (QEMU_CFG_ARCH_LOCAL + 0) + #define QEMU_CFG_SMBIOS_ENTRIES (QEMU_CFG_ARCH_LOCAL + 1) +@@ -529,6 +535,14 @@ static uint16_t smbios_entries(void) + + return cnt; + } ++ ++uint64_t qemu_cfg_get64 (void) ++{ ++ uint64_t ret; ++ ++ qemu_cfg_read((uint8_t*)&ret, 8); ++ return le64_to_cpu(ret); ++} + #endif + + void cpu_probe(void) +@@ -1281,7 +1295,7 @@ struct rsdt_descriptor_rev1 + { + ACPI_TABLE_HEADER_DEF /* ACPI common table header */ + #ifdef BX_QEMU +- uint32_t table_offset_entry [4]; /* Array of pointers to other */ ++ uint32_t table_offset_entry [5]; /* Array of pointers to other */ + #else + uint32_t table_offset_entry [3]; /* Array of pointers to other */ + #endif +@@ -1389,7 +1403,7 @@ struct multiple_apic_table + } __attribute__((__packed__)); + + +-/* Values for Type in APIC_HEADER_DEF */ ++/* Values for Type in APIC sub-headers */ + + #define APIC_PROCESSOR 0 + #define APIC_IO 1 +@@ -1402,18 +1416,18 @@ struct multiple_apic_table + #define APIC_XRUPT_SOURCE 8 + #define APIC_RESERVED 9 /* 9 and greater are reserved */ + +-/* +- * MADT sub-structures (Follow MULTIPLE_APIC_DESCRIPTION_TABLE) +- */ +-#define APIC_HEADER_DEF /* Common APIC sub-structure header */\ ++#define ACPI_SUB_HEADER_DEF /* Common ACPI sub-structure header */\ + uint8_t type; \ + uint8_t length; + ++/* ++ * MADT sub-structures (Follow MULTIPLE_APIC_DESCRIPTION_TABLE) ++ */ + /* Sub-structures for MADT */ + + struct madt_processor_apic + { +- APIC_HEADER_DEF ++ ACPI_SUB_HEADER_DEF + uint8_t processor_id; /* ACPI processor id */ + uint8_t local_apic_id; /* Processor's local APIC id */ + #if 0 +@@ -1424,6 +1438,43 @@ struct madt_processor_apic + #endif + } __attribute__((__packed__)); + ++/* ++ * SRAT (NUMA topology description) table ++ */ ++ ++#define SRAT_PROCESSOR 0 ++#define SRAT_MEMORY 1 ++ ++struct system_resource_affinity_table ++{ ++ ACPI_TABLE_HEADER_DEF ++ uint32_t reserved1; ++ uint32_t reserved2[2]; ++}; ++ ++struct srat_processor_affinity ++{ ++ ACPI_SUB_HEADER_DEF ++ uint8_t proximity_lo; ++ uint8_t local_apic_id; ++ uint32_t flags; ++ uint8_t local_sapic_eid; ++ uint8_t proximity_hi[3]; ++ uint32_t reserved; ++}; ++ ++struct srat_memory_affinity ++{ ++ ACPI_SUB_HEADER_DEF ++ uint8_t proximity[4]; ++ uint16_t reserved1; ++ uint32_t base_addr_low,base_addr_high; ++ uint32_t length_low,length_high; ++ uint32_t reserved2; ++ uint32_t flags; ++ uint32_t reserved3[2]; ++}; ++ + #ifdef BX_QEMU + /* + * * ACPI 2.0 Generic Address Space definition. +@@ -1452,7 +1503,7 @@ struct acpi_20_hpet { + + struct madt_io_apic + { +- APIC_HEADER_DEF ++ ACPI_SUB_HEADER_DEF + uint8_t io_apic_id; /* I/O APIC ID */ + uint8_t reserved; /* Reserved - must be zero */ + uint32_t address; /* APIC physical address */ +@@ -1463,7 +1514,7 @@ struct madt_io_apic + #ifdef BX_QEMU + struct madt_int_override + { +- APIC_HEADER_DEF ++ ACPI_SUB_HEADER_DEF + uint8_t bus; /* Identifies ISA Bus */ + uint8_t source; /* Bus-relative interrupt source */ + uint32_t gsi; /* GSI that source will signal */ +@@ -1567,6 +1618,21 @@ int acpi_build_processor_ssdt(uint8_t *ssdt) + return ssdt_ptr - ssdt; + } + ++static void acpi_build_srat_memory(struct srat_memory_affinity *numamem, ++ uint64_t base, uint64_t len, int node, int enabled) ++{ ++ numamem->type = SRAT_MEMORY; ++ numamem->length = sizeof(*numamem); ++ memset (numamem->proximity, 0 ,4); ++ numamem->proximity[0] = node; ++ numamem->flags = cpu_to_le32(!!enabled); ++ numamem->base_addr_low = base & 0xFFFFFFFF; ++ numamem->base_addr_high = base >> 32; ++ numamem->length_low = len & 0xFFFFFFFF; ++ numamem->length_high = len >> 32; ++ return; ++} ++ + /* base_addr must be a multiple of 4KB */ + void acpi_bios_init(void) + { +@@ -1577,12 +1643,15 @@ void acpi_bios_init(void) + struct multiple_apic_table *madt; + uint8_t *dsdt, *ssdt; + #ifdef BX_QEMU ++ struct system_resource_affinity_table *srat; + struct acpi_20_hpet *hpet; + uint32_t hpet_addr; + #endif + uint32_t base_addr, rsdt_addr, fadt_addr, addr, facs_addr, dsdt_addr, ssdt_addr; + uint32_t acpi_tables_size, madt_addr, madt_size, rsdt_size; ++ uint32_t srat_addr,srat_size; + uint16_t i, external_tables; ++ int nb_numa_nodes; + + /* reserve memory space for tables */ + #ifdef BX_USE_EBDA_TABLES +@@ -1624,6 +1693,25 @@ void acpi_bios_init(void) + ssdt_addr = addr; + ssdt = (void *)(addr); + addr += acpi_build_processor_ssdt(ssdt); ++#ifdef BX_QEMU ++ qemu_cfg_select(QEMU_CFG_NUMA); ++ nb_numa_nodes = qemu_cfg_get64(); ++#else ++ nb_numa_nodes = 0; ++#endif ++ if (nb_numa_nodes > 0) { ++ addr = (addr + 7) & ~7; ++ srat_addr = addr; ++ srat_size = sizeof(*srat) + ++ sizeof(struct srat_processor_affinity) * smp_cpus + ++ sizeof(struct srat_memory_affinity) * (nb_numa_nodes + 2); ++ srat = (void *)(addr); ++ addr += srat_size; ++ } else { ++ srat_addr = addr; ++ srat = (void*)(addr); ++ srat_size = 0; ++ } + + addr = (addr + 7) & ~7; + madt_addr = addr; +@@ -1733,6 +1821,69 @@ void acpi_bios_init(void) + + memset(rsdt, 0, rsdt_size); + #ifdef BX_QEMU ++ /* SRAT */ ++ if (nb_numa_nodes > 0) { ++ struct srat_processor_affinity *core; ++ struct srat_memory_affinity *numamem; ++ int slots; ++ uint64_t mem_len, mem_base, next_base = 0, curnode; ++ ++ qemu_cfg_select(QEMU_CFG_NUMA); ++ qemu_cfg_get64(); ++ memset (srat, 0 , srat_size); ++ srat->reserved1=1; ++ ++ core = (void*)(srat + 1); ++ for (i = 0; i < smp_cpus; ++i) { ++ core->type = SRAT_PROCESSOR; ++ core->length = sizeof(*core); ++ core->local_apic_id = i; ++ curnode = qemu_cfg_get64(); ++ core->proximity_lo = curnode; ++ memset (core->proximity_hi, 0, 3); ++ core->local_sapic_eid = 0; ++ if (i < smp_cpus) ++ core->flags = cpu_to_le32(1); ++ else ++ core->flags = 0; ++ core++; ++ } ++ ++ /* the memory map is a bit tricky, it contains at least one hole ++ * from 640k-1M and possibly another one from 3.5G-4G. ++ */ ++ numamem = (void*)core; slots = 0; ++ acpi_build_srat_memory(numamem, 0, 640*1024, 0, 1); ++ next_base = 1024 * 1024; numamem++;slots++; ++ for (i = 1; i < nb_numa_nodes + 1; ++i) { ++ mem_base = next_base; ++ mem_len = qemu_cfg_get64(); ++ if (i == 1) mem_len -= 1024 * 1024; ++ next_base = mem_base + mem_len; ++ ++ /* Cut out the PCI hole */ ++ if (mem_base <= ram_size && next_base > ram_size) { ++ mem_len -= next_base - ram_size; ++ if (mem_len > 0) { ++ acpi_build_srat_memory(numamem, mem_base, mem_len, i-1, 1); ++ numamem++; slots++; ++ } ++ mem_base = 1ULL << 32; ++ mem_len = next_base - ram_size; ++ next_base += (1ULL << 32) - ram_size; ++ } ++ acpi_build_srat_memory(numamem, mem_base, mem_len, i-1, 1); ++ numamem++; slots++; ++ } ++ for (; slots < nb_numa_nodes + 2; slots++) { ++ acpi_build_srat_memory(numamem, 0, 0, 0, 0); ++ numamem++; ++ } ++ ++ acpi_build_table_header((struct acpi_table_header *)srat, ++ "SRAT", srat_size, 1); ++ } ++ + /* HPET */ + memset(hpet, 0, sizeof(*hpet)); + /* Note timer_block_id value must be kept in sync with value advertised by +@@ -1761,9 +1912,11 @@ void acpi_bios_init(void) + rsdt->table_offset_entry[2] = cpu_to_le32(ssdt_addr); + #ifdef BX_QEMU + rsdt->table_offset_entry[3] = cpu_to_le32(hpet_addr); ++ if (nb_numa_nodes > 0) ++ rsdt->table_offset_entry[4] = cpu_to_le32(srat_addr); + #endif +- acpi_build_table_header((struct acpi_table_header *)rsdt, +- "RSDT", rsdt_size, 1); ++ acpi_build_table_header((struct acpi_table_header *)rsdt, "RSDT", ++ rsdt_size - (nb_numa_nodes > 0? 0: sizeof(uint32_t)), 1); + + acpi_tables_size = addr - base_addr; + +-- +1.6.1.3 + + diff --git a/pc-bios/bios-pq/series b/pc-bios/bios-pq/series index 6011467e6c..fdef1793bc 100644 --- a/pc-bios/bios-pq/series +++ b/pc-bios/bios-pq/series @@ -11,3 +11,4 @@ 0011_read-additional-acpi-tables-from-a-vm.patch 0012-load-smbios-entries-and-files-from-qemu.patch 0013_fix-non-acpi-timer-interrupt-routing.patch +0014_add-srat-acpi-table-support.patch |