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Re: [PATCH v3 17/35] acpi: use build_append_int_noprefix() API to compos
From: |
Eric Auger |
Subject: |
Re: [PATCH v3 17/35] acpi: use build_append_int_noprefix() API to compose SRAT table |
Date: |
Wed, 22 Sep 2021 10:55:20 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 |
On 9/7/21 4:47 PM, Igor Mammedov wrote:
> Drop usage of packed structures and explicit endian conversions
> when building SRAT tables for arm/x86 and use endian agnostic
> build_append_int_noprefix() API to build it.
>
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> ---
> v3:
> * rebase on top of (e77af21a7a2 hw/i386/acpi-build: Get NUMA information
> from struct NumaState)
> CC: xiaoguangrong.eric@gmail.com
> CC: shannon.zhaosl@gmail.com
> CC: peter.maydell@linaro.org
> CC: marcel.apfelbaum@gmail.com
> CC: qemu-arm@nongnu.org
> CC: drjones@redhat.com
> CC: eauger@redhat.com
> ---
> include/hw/acpi/acpi-defs.h | 49 -----------------------
> include/hw/acpi/aml-build.h | 2 +-
> hw/acpi/aml-build.c | 24 ++++++++----
> hw/acpi/nvdimm.c | 4 +-
> hw/arm/virt-acpi-build.c | 29 ++++++++------
> hw/i386/acpi-build.c | 78 +++++++++++++++++++++----------------
> 6 files changed, 80 insertions(+), 106 deletions(-)
>
> diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h
> index 5826ee04b6..d293304f9c 100644
> --- a/include/hw/acpi/acpi-defs.h
> +++ b/include/hw/acpi/acpi-defs.h
> @@ -358,55 +358,6 @@ struct AcpiGenericTimerTable {
> } QEMU_PACKED;
> typedef struct AcpiGenericTimerTable AcpiGenericTimerTable;
>
> -#define ACPI_SRAT_PROCESSOR_APIC 0
> -#define ACPI_SRAT_MEMORY 1
> -#define ACPI_SRAT_PROCESSOR_x2APIC 2
> -#define ACPI_SRAT_PROCESSOR_GICC 3
> -
> -struct AcpiSratProcessorAffinity {
> - 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;
> -} QEMU_PACKED;
> -typedef struct AcpiSratProcessorAffinity AcpiSratProcessorAffinity;
> -
> -struct AcpiSratProcessorX2ApicAffinity {
> - ACPI_SUB_HEADER_DEF
> - uint16_t reserved;
> - uint32_t proximity_domain;
> - uint32_t x2apic_id;
> - uint32_t flags;
> - uint32_t clk_domain;
> - uint32_t reserved2;
> -} QEMU_PACKED;
> -typedef struct AcpiSratProcessorX2ApicAffinity
> AcpiSratProcessorX2ApicAffinity;
> -
> -struct AcpiSratMemoryAffinity {
> - ACPI_SUB_HEADER_DEF
> - uint32_t proximity;
> - uint16_t reserved1;
> - uint64_t base_addr;
> - uint64_t range_length;
> - uint32_t reserved2;
> - uint32_t flags;
> - uint32_t reserved3[2];
> -} QEMU_PACKED;
> -typedef struct AcpiSratMemoryAffinity AcpiSratMemoryAffinity;
> -
> -struct AcpiSratProcessorGiccAffinity {
> - ACPI_SUB_HEADER_DEF
> - uint32_t proximity;
> - uint32_t acpi_processor_uid;
> - uint32_t flags;
> - uint32_t clock_domain;
> -} QEMU_PACKED;
> -
> -typedef struct AcpiSratProcessorGiccAffinity AcpiSratProcessorGiccAffinity;
> -
> /* DMAR - DMA Remapping table r2.2 */
> struct AcpiTableDmar {
> ACPI_TABLE_HEADER_DEF
> diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
> index 4242382399..6e1f42e119 100644
> --- a/include/hw/acpi/aml-build.h
> +++ b/include/hw/acpi/aml-build.h
> @@ -487,7 +487,7 @@ Aml *build_crs(PCIHostState *host, CrsRangeSet
> *range_set, uint32_t io_offset,
> uint32_t mmio32_offset, uint64_t mmio64_offset,
> uint16_t bus_nr_offset);
>
> -void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
> +void build_srat_memory(GArray *table_data, uint64_t base,
> uint64_t len, int node, MemoryAffinityFlags flags);
>
> void build_slit(GArray *table_data, BIOSLinker *linker, MachineState *ms,
> diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> index 5e8bfb631c..050fdb3f37 100644
> --- a/hw/acpi/aml-build.c
> +++ b/hw/acpi/aml-build.c
> @@ -1936,15 +1936,25 @@ build_xsdt(GArray *table_data, BIOSLinker *linker,
> GArray *table_offsets,
> acpi_table_end(linker, &table);
> }
>
> -void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
> +/*
> + * ACPI spec, Revision 4.0
> + * 5.2.16.2 Memory Affinity Structure
> + */
> +void build_srat_memory(GArray *table_data, uint64_t base,
> uint64_t len, int node, MemoryAffinityFlags flags)
> {
> - numamem->type = ACPI_SRAT_MEMORY;
> - numamem->length = sizeof(*numamem);
> - numamem->proximity = cpu_to_le32(node);
> - numamem->flags = cpu_to_le32(flags);
> - numamem->base_addr = cpu_to_le64(base);
> - numamem->range_length = cpu_to_le64(len);
> + build_append_int_noprefix(table_data, 1, 1); /* Type */
> + build_append_int_noprefix(table_data, 40, 1); /* Length */
> + build_append_int_noprefix(table_data, node, 4); /* Proximity Domain */
> + build_append_int_noprefix(table_data, 0, 2); /* Reserved */
> + build_append_int_noprefix(table_data, base, 4); /* Base Address Low */
> + /* Base Address High */
> + build_append_int_noprefix(table_data, base >> 32, 4);
> + build_append_int_noprefix(table_data, len, 4); /* Length Low */
> + build_append_int_noprefix(table_data, len >> 32, 4); /* Length High */
> + build_append_int_noprefix(table_data, 0, 4); /* Reserved */
> + build_append_int_noprefix(table_data, flags, 4); /* Flags */
> + build_append_int_noprefix(table_data, 0, 8); /* Reserved */
> }
>
> /*
> diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
> index e050b47c2b..baab81f7a6 100644
> --- a/hw/acpi/nvdimm.c
> +++ b/hw/acpi/nvdimm.c
> @@ -1336,7 +1336,6 @@ void nvdimm_build_srat(GArray *table_data)
> GSList *device_list = nvdimm_get_device_list();
>
> for (; device_list; device_list = device_list->next) {
> - AcpiSratMemoryAffinity *numamem = NULL;
> DeviceState *dev = device_list->data;
> Object *obj = OBJECT(dev);
> uint64_t addr, size;
> @@ -1346,8 +1345,7 @@ void nvdimm_build_srat(GArray *table_data)
> addr = object_property_get_uint(obj, PC_DIMM_ADDR_PROP,
> &error_abort);
> size = object_property_get_uint(obj, PC_DIMM_SIZE_PROP,
> &error_abort);
>
> - numamem = acpi_data_push(table_data, sizeof *numamem);
> - build_srat_memory(numamem, addr, size, node,
> + build_srat_memory(table_data, addr, size, node,
> MEM_AFFINITY_ENABLED | MEM_AFFINITY_NON_VOLATILE);
> }
> g_slist_free(device_list);
> diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
> index 21efe7fe34..6ba02cf281 100644
> --- a/hw/arm/virt-acpi-build.c
> +++ b/hw/arm/virt-acpi-build.c
> @@ -474,11 +474,13 @@ build_spcr(GArray *table_data, BIOSLinker *linker,
> VirtMachineState *vms)
> vms->oem_table_id);
> }
>
> +/*
> + * ACPI spec, Revision 5.1
> + * 5.2.16 System Resource Affinity Table (SRAT)
> + */
> static void
> build_srat(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
> {
> - AcpiSratProcessorGiccAffinity *core;
> - AcpiSratMemoryAffinity *numamem;
> int i;
> uint64_t mem_base;
> MachineClass *mc = MACHINE_GET_CLASS(vms);
> @@ -492,19 +494,23 @@ build_srat(GArray *table_data, BIOSLinker *linker,
> VirtMachineState *vms)
> build_append_int_noprefix(table_data, 0, 8); /* Reserved */
>
> for (i = 0; i < cpu_list->len; ++i) {
> - core = acpi_data_push(table_data, sizeof(*core));
> - core->type = ACPI_SRAT_PROCESSOR_GICC;
> - core->length = sizeof(*core);
> - core->proximity = cpu_to_le32(cpu_list->cpus[i].props.node_id);
> - core->acpi_processor_uid = cpu_to_le32(i);
> - core->flags = cpu_to_le32(1);
> + uint32_t nodeid = cpu_list->cpus[i].props.node_id;
> + /*
> + * 5.2.16.4 GICC Affinity Structure
> + */
> + build_append_int_noprefix(table_data, 3, 1); /* Type */
> + build_append_int_noprefix(table_data, 18, 1); /* Length */
> + build_append_int_noprefix(table_data, nodeid, 4); /* Proximity
> Domain */
> + build_append_int_noprefix(table_data, i, 4); /* ACPI Processor UID */
> + /* Flags, Table 5-76 */
> + build_append_int_noprefix(table_data, 1 /* Enabled */, 4);
> + build_append_int_noprefix(table_data, 0, 4); /* Clock Domain */
> }
>
> mem_base = vms->memmap[VIRT_MEM].base;
> for (i = 0; i < ms->numa_state->num_nodes; ++i) {
> if (ms->numa_state->nodes[i].node_mem > 0) {
> - numamem = acpi_data_push(table_data, sizeof(*numamem));
> - build_srat_memory(numamem, mem_base,
> + build_srat_memory(table_data, mem_base,
> ms->numa_state->nodes[i].node_mem, i,
> MEM_AFFINITY_ENABLED);
> mem_base += ms->numa_state->nodes[i].node_mem;
> @@ -516,8 +522,7 @@ build_srat(GArray *table_data, BIOSLinker *linker,
> VirtMachineState *vms)
> }
>
> if (ms->device_memory) {
> - numamem = acpi_data_push(table_data, sizeof *numamem);
> - build_srat_memory(numamem, ms->device_memory->base,
> + build_srat_memory(table_data, ms->device_memory->base,
> memory_region_size(&ms->device_memory->mr),
> ms->numa_state->num_nodes - 1,
> MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED);
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 41c0a63b30..51e0ba07b6 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -1917,13 +1917,15 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker
> *linker, GArray *tcpalog,
> #define HOLE_640K_START (640 * KiB)
> #define HOLE_640K_END (1 * MiB)
>
> +/*
> + * ACPI spec, Revision 3.0
> + * 5.2.15 System Resource Affinity Table (SRAT)
> + */
> static void
> build_srat(GArray *table_data, BIOSLinker *linker, MachineState *machine)
> {
> - AcpiSratMemoryAffinity *numamem;
> -
> int i;
> - int numa_start, slots;
> + int numa_mem_start, slots;
> uint64_t mem_len, mem_base, next_base;
> MachineClass *mc = MACHINE_GET_CLASS(machine);
> X86MachineState *x86ms = X86_MACHINE(machine);
> @@ -1946,34 +1948,41 @@ build_srat(GArray *table_data, BIOSLinker *linker,
> MachineState *machine)
> uint32_t apic_id = apic_ids->cpus[i].arch_id;
>
> if (apic_id < 255) {
> - AcpiSratProcessorAffinity *core;
> -
> - core = acpi_data_push(table_data, sizeof *core);
> - core->type = ACPI_SRAT_PROCESSOR_APIC;
> - core->length = sizeof(*core);
> - core->local_apic_id = apic_id;
> - core->proximity_lo = node_id;
> - memset(core->proximity_hi, 0, 3);
> - core->local_sapic_eid = 0;
> - core->flags = cpu_to_le32(1);
> + /* 5.2.15.1 Processor Local APIC/SAPIC Affinity Structure */
> + build_append_int_noprefix(table_data, 0, 1); /* Type */
> + build_append_int_noprefix(table_data, 16, 1); /* Length */
> + /* Proximity Domain [7:0] */
> + build_append_int_noprefix(table_data, node_id, 1);
> + build_append_int_noprefix(table_data, apic_id, 1); /* APIC ID */
> + /* Flags, Table 5-36 */
> + build_append_int_noprefix(table_data, 1, 4);
> + build_append_int_noprefix(table_data, 0, 1); /* Local SAPIC EID
> */
> + /* Proximity Domain [31:8] */
> + build_append_int_noprefix(table_data, 0, 3);
> + build_append_int_noprefix(table_data, 0, 4); /* Reserved */
clock domain?
> } else {
> - AcpiSratProcessorX2ApicAffinity *core;
> -
> - core = acpi_data_push(table_data, sizeof *core);
> - core->type = ACPI_SRAT_PROCESSOR_x2APIC;
> - core->length = sizeof(*core);
> - core->x2apic_id = cpu_to_le32(apic_id);
> - core->proximity_domain = cpu_to_le32(node_id);
> - core->flags = cpu_to_le32(1);
> + /*
> + * ACPI spec, Revision 4.0
> + * 5.2.16.3 Processor Local x2APIC Affinity Structure
> + */
> + build_append_int_noprefix(table_data, 2, 1); /* Type */
> + build_append_int_noprefix(table_data, 24, 1); /* Length */
> + build_append_int_noprefix(table_data, 0, 2); /* Reserved */
> + /* Proximity Domain */
> + build_append_int_noprefix(table_data, node_id, 4);
> + build_append_int_noprefix(table_data, apic_id, 4); /* X2APIC ID
> */
> + /* Flags, Table 5-39 */
> + build_append_int_noprefix(table_data, 1 /* Enabled */, 4);
> + build_append_int_noprefix(table_data, 0, 4); /* Clock Domain */
> + build_append_int_noprefix(table_data, 0, 4); /* Reserved */
> }
> }
>
> -
> /* the memory map is a bit tricky, it contains at least one hole
> * from 640k-1M and possibly another one from 3.5G-4G.
> */
> next_base = 0;
> - numa_start = table_data->len;
> + numa_mem_start = table_data->len;
>
> for (i = 1; i < nb_numa_nodes + 1; ++i) {
> mem_base = next_base;
> @@ -1985,8 +1994,7 @@ build_srat(GArray *table_data, BIOSLinker *linker,
> MachineState *machine)
> next_base > HOLE_640K_START) {
> mem_len -= next_base - HOLE_640K_START;
> if (mem_len > 0) {
> - numamem = acpi_data_push(table_data, sizeof *numamem);
> - build_srat_memory(numamem, mem_base, mem_len, i - 1,
> + build_srat_memory(table_data, mem_base, mem_len, i - 1,
> MEM_AFFINITY_ENABLED);
> }
>
> @@ -2004,8 +2012,7 @@ build_srat(GArray *table_data, BIOSLinker *linker,
> MachineState *machine)
> next_base > x86ms->below_4g_mem_size) {
> mem_len -= next_base - x86ms->below_4g_mem_size;
> if (mem_len > 0) {
> - numamem = acpi_data_push(table_data, sizeof *numamem);
> - build_srat_memory(numamem, mem_base, mem_len, i - 1,
> + build_srat_memory(table_data, mem_base, mem_len, i - 1,
> MEM_AFFINITY_ENABLED);
> }
> mem_base = 1ULL << 32;
> @@ -2014,8 +2021,7 @@ build_srat(GArray *table_data, BIOSLinker *linker,
> MachineState *machine)
> }
>
> if (mem_len > 0) {
> - numamem = acpi_data_push(table_data, sizeof *numamem);
> - build_srat_memory(numamem, mem_base, mem_len, i - 1,
> + build_srat_memory(table_data, mem_base, mem_len, i - 1,
> MEM_AFFINITY_ENABLED);
> }
> }
> @@ -2024,10 +2030,15 @@ build_srat(GArray *table_data, BIOSLinker *linker,
> MachineState *machine)
> nvdimm_build_srat(table_data);
> }
>
> - slots = (table_data->len - numa_start) / sizeof *numamem;
> + /*
> + * TODO: this part is not in ACPI spec and current linux kernel boots
> fine
> + * without these entries. But I recall there were issues the last time I
> + * tried to remove it with some ancient guest OS, however I can't
> remember
> + * what that was so keep this around for now
> + */
> + slots = (table_data->len - numa_mem_start) / 40 /* mem affinity len */;
> for (; slots < nb_numa_nodes + 2; slots++) {
> - numamem = acpi_data_push(table_data, sizeof *numamem);
> - build_srat_memory(numamem, 0, 0, 0, MEM_AFFINITY_NOFLAGS);
> + build_srat_memory(table_data, 0, 0, 0, MEM_AFFINITY_NOFLAGS);
> }
>
> /*
> @@ -2039,8 +2050,7 @@ build_srat(GArray *table_data, BIOSLinker *linker,
> MachineState *machine)
> * providing _PXM method if necessary.
> */
> if (hotplugabble_address_space_size) {
> - numamem = acpi_data_push(table_data, sizeof *numamem);
> - build_srat_memory(numamem, machine->device_memory->base,
> + build_srat_memory(table_data, machine->device_memory->base,
> hotplugabble_address_space_size, nb_numa_nodes - 1,
> MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED);
> }
>
Besides
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Eric
- [PATCH v3 14/35] acpi: build_hpet: use acpi_table_begin()/acpi_table_end() instead of build_header(), (continued)
- [PATCH v3 14/35] acpi: build_hpet: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 16/35] acpi: arm/x86: build_srat: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 15/35] acpi: build_tpm_tcpa: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 18/35] acpi: build_dmar_q35: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 17/35] acpi: use build_append_int_noprefix() API to compose SRAT table, Igor Mammedov, 2021/09/07
- Re: [PATCH v3 17/35] acpi: use build_append_int_noprefix() API to compose SRAT table,
Eric Auger <=
- [PATCH v3 19/35] acpi: build_waet: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 21/35] acpi: madt: arm/x86: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 20/35] acpi: build_amd_iommu: use acpi_table_begin()/acpi_table_end() instead of build_header(), Igor Mammedov, 2021/09/07
- [PATCH v3 23/35] acpi: x86: set enabled when composing _MAT entries, Igor Mammedov, 2021/09/07