| Message ID | 20210924122802.1455362-30-imammedo@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | acpi: refactor error prone build_header() and packed structures usage in ACPI tables | expand |
On 9/24/21 2:27 PM, Igor Mammedov wrote: > Drop usage of packed structures and explicit endian conversions > when building IORT table use endian agnostic build_append_int_noprefix() > API to build it. > > Signed-off-by: Igor Mammedov <imammedo@redhat.com> > --- > CC: Eric Auger <eric.auger@redhat.com> > > v4: > - (Eric Auger <eric.auger@redhat.com>) > * keep nb_nodes > * encode 'Memory access properties' as separate entries according to > Table 13 > * keep some comments > v3: > * practically rewritten, due to conflicts wiht bypass iommu feature > > CC: drjones@redhat.com > CC: peter.maydell@linaro.org > CC: shannon.zhaosl@gmail.com > CC: qemu-arm@nongnu.org > CC: wangxingang5@huawei.com > CC: Eric Auger <eric.auger@redhat.com> > --- > include/hw/acpi/acpi-defs.h | 71 ---------------- > hw/arm/virt-acpi-build.c | 164 ++++++++++++++++++++---------------- > 2 files changed, 93 insertions(+), 142 deletions(-) > > diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h > index 195f90caf6..6f2f08a9de 100644 > --- a/include/hw/acpi/acpi-defs.h > +++ b/include/hw/acpi/acpi-defs.h > @@ -188,75 +188,4 @@ struct AcpiGenericTimerTable { > } QEMU_PACKED; > typedef struct AcpiGenericTimerTable AcpiGenericTimerTable; > > -/* > - * IORT node types > - */ > - > -#define ACPI_IORT_NODE_HEADER_DEF /* Node format common fields */ \ > - uint8_t type; \ > - uint16_t length; \ > - uint8_t revision; \ > - uint32_t reserved; \ > - uint32_t mapping_count; \ > - uint32_t mapping_offset; > - > -/* Values for node Type above */ > -enum { > - ACPI_IORT_NODE_ITS_GROUP = 0x00, > - ACPI_IORT_NODE_NAMED_COMPONENT = 0x01, > - ACPI_IORT_NODE_PCI_ROOT_COMPLEX = 0x02, > - ACPI_IORT_NODE_SMMU = 0x03, > - ACPI_IORT_NODE_SMMU_V3 = 0x04 > -}; > - > -struct AcpiIortIdMapping { > - uint32_t input_base; > - uint32_t id_count; > - uint32_t output_base; > - uint32_t output_reference; > - uint32_t flags; > -} QEMU_PACKED; > -typedef struct AcpiIortIdMapping AcpiIortIdMapping; > - > -struct AcpiIortMemoryAccess { > - uint32_t cache_coherency; > - uint8_t hints; > - uint16_t reserved; > - uint8_t memory_flags; > -} QEMU_PACKED; > -typedef struct AcpiIortMemoryAccess AcpiIortMemoryAccess; > - > -struct AcpiIortItsGroup { > - ACPI_IORT_NODE_HEADER_DEF > - uint32_t its_count; > - uint32_t identifiers[]; > -} QEMU_PACKED; > -typedef struct AcpiIortItsGroup AcpiIortItsGroup; > - > -#define ACPI_IORT_SMMU_V3_COHACC_OVERRIDE 1 > - > -struct AcpiIortSmmu3 { > - ACPI_IORT_NODE_HEADER_DEF > - uint64_t base_address; > - uint32_t flags; > - uint32_t reserved2; > - uint64_t vatos_address; > - uint32_t model; > - uint32_t event_gsiv; > - uint32_t pri_gsiv; > - uint32_t gerr_gsiv; > - uint32_t sync_gsiv; > - AcpiIortIdMapping id_mapping_array[]; > -} QEMU_PACKED; > -typedef struct AcpiIortSmmu3 AcpiIortSmmu3; > - > -struct AcpiIortRC { > - ACPI_IORT_NODE_HEADER_DEF > - AcpiIortMemoryAccess memory_properties; > - uint32_t ats_attribute; > - uint32_t pci_segment_number; > - AcpiIortIdMapping id_mapping_array[]; > -} QEMU_PACKED; > -typedef struct AcpiIortRC AcpiIortRC; > - > #endif > diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c > index 42ea460313..8c382915a9 100644 > --- a/hw/arm/virt-acpi-build.c > +++ b/hw/arm/virt-acpi-build.c > @@ -240,6 +240,28 @@ static void acpi_dsdt_add_tpm(Aml *scope, VirtMachineState *vms) > } > #endif > > +#define ID_MAPPING_ENTRY_SIZE 20 > +#define SMMU_V3_ENTRY_SIZE 60 > +#define ROOT_COMPLEX_ENTRY_SIZE 32 > +#define IORT_NODE_OFFSET 48 > + > +static void build_iort_id_mapping(GArray *table_data, uint32_t input_base, > + uint32_t id_count, uint32_t out_ref) > +{ > + /* Identity RID mapping covering the whole input RID range */ > + build_append_int_noprefix(table_data, input_base, 4); /* Input base */ > + build_append_int_noprefix(table_data, id_count, 4); /* Number of IDs */ > + build_append_int_noprefix(table_data, input_base, 4); /* Output base */ > + build_append_int_noprefix(table_data, out_ref, 4); /* Output Reference */ > + build_append_int_noprefix(table_data, 0, 4); /* Flags */ > +} > + > +struct AcpiIortIdMapping { > + uint32_t input_base; > + uint32_t id_count; > +}; > +typedef struct AcpiIortIdMapping AcpiIortIdMapping; > + > /* Build the iort ID mapping to SMMUv3 for a given PCI host bridge */ > static int > iort_host_bridges(Object *obj, void *opaque) > @@ -282,17 +304,16 @@ static void > build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) > { > int i, nb_nodes, rc_mapping_count; > - AcpiIortIdMapping *idmap; > - AcpiIortItsGroup *its; > - AcpiIortSmmu3 *smmu; > - AcpiIortRC *rc; > - const uint32_t iort_node_offset = 48; > + const uint32_t iort_node_offset = IORT_NODE_OFFSET; > size_t node_size, smmu_offset = 0; > + AcpiIortIdMapping *idmap; > GArray *smmu_idmaps = g_array_new(false, true, sizeof(AcpiIortIdMapping)); > GArray *its_idmaps = g_array_new(false, true, sizeof(AcpiIortIdMapping)); > > AcpiTable table = { .sig = "IORT", .rev = 0, .oem_id = vms->oem_id, > .oem_table_id = vms->oem_table_id }; > + /* Table 2 The IORT */ > + acpi_table_begin(&table, table_data); > > if (vms->iommu == VIRT_IOMMU_SMMUV3) { > AcpiIortIdMapping next_range = {0}; > @@ -330,100 +351,101 @@ build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) > nb_nodes = 2; /* RC, ITS */ > rc_mapping_count = 1; > } > - > - /* Table 2 The IORT */ > - acpi_table_begin(&table, table_data); > /* Number of IORT Nodes */ > build_append_int_noprefix(table_data, nb_nodes, 4); > + > /* Offset to Array of IORT Nodes */ > - build_append_int_noprefix(table_data, iort_node_offset, 4); > + build_append_int_noprefix(table_data, IORT_NODE_OFFSET, 4); > build_append_int_noprefix(table_data, 0, 4); /* Reserved */ > > - /* ITS group node */ > - node_size = sizeof(*its) + sizeof(uint32_t); > - its = acpi_data_push(table_data, node_size); > - > - its->type = ACPI_IORT_NODE_ITS_GROUP; > - its->length = cpu_to_le16(node_size); > - its->its_count = cpu_to_le32(1); > - its->identifiers[0] = 0; /* MADT translation_id */ > + /* 3.1.1.3 ITS group node */ > + build_append_int_noprefix(table_data, 0 /* ITS Group */, 1); /* Type */ > + node_size = 20 /* fixed header size */ + 4 /* 1 GIC ITS Identifier */; > + build_append_int_noprefix(table_data, node_size, 2); /* Length */ > + build_append_int_noprefix(table_data, 0, 1); /* Revision */ > + build_append_int_noprefix(table_data, 0, 4); /* Reserved */ > + build_append_int_noprefix(table_data, 0, 4); /* Number of ID mappings */ > + build_append_int_noprefix(table_data, 0, 4); /* Reference to ID Array */ > + build_append_int_noprefix(table_data, 1, 4); /* Number of ITSs */ > + /* GIC ITS Identifier Array */ > + build_append_int_noprefix(table_data, 0 /* MADT translation_id */, 4); > > if (vms->iommu == VIRT_IOMMU_SMMUV3) { > int irq = vms->irqmap[VIRT_SMMU] + ARM_SPI_BASE; > > - /* SMMUv3 node */ > - smmu_offset = iort_node_offset + node_size; > - node_size = sizeof(*smmu) + sizeof(*idmap); > - smmu = acpi_data_push(table_data, node_size); > - > - smmu->type = ACPI_IORT_NODE_SMMU_V3; > - smmu->length = cpu_to_le16(node_size); > - smmu->mapping_count = cpu_to_le32(1); > - smmu->mapping_offset = cpu_to_le32(sizeof(*smmu)); > - smmu->base_address = cpu_to_le64(vms->memmap[VIRT_SMMU].base); > - smmu->flags = cpu_to_le32(ACPI_IORT_SMMU_V3_COHACC_OVERRIDE); > - smmu->event_gsiv = cpu_to_le32(irq); > - smmu->pri_gsiv = cpu_to_le32(irq + 1); > - smmu->sync_gsiv = cpu_to_le32(irq + 2); > - smmu->gerr_gsiv = cpu_to_le32(irq + 3); > - > - /* Identity RID mapping covering the whole input RID range */ > - idmap = &smmu->id_mapping_array[0]; > - idmap->input_base = 0; > - idmap->id_count = cpu_to_le32(0xFFFF); > - idmap->output_base = 0; > + smmu_offset = table_data->len - table.table_offset; > + /* 3.1.1.2 SMMUv3 */ > + build_append_int_noprefix(table_data, 4 /* SMMUv3 */, 1); /* Type */ > + node_size = SMMU_V3_ENTRY_SIZE + ID_MAPPING_ENTRY_SIZE; > + build_append_int_noprefix(table_data, node_size, 2); /* Length */ > + build_append_int_noprefix(table_data, 0, 1); /* Revision */ > + build_append_int_noprefix(table_data, 0, 4); /* Reserved */ > + build_append_int_noprefix(table_data, 1, 4); /* Number of ID mappings */ > + /* Reference to ID Array */ > + build_append_int_noprefix(table_data, SMMU_V3_ENTRY_SIZE, 4); > + /* Base address */ > + build_append_int_noprefix(table_data, vms->memmap[VIRT_SMMU].base, 8); > + /* Flags */ > + build_append_int_noprefix(table_data, 1 /* COHACC OverrideNote */, 4); > + build_append_int_noprefix(table_data, 0, 4); /* Reserved */ > + build_append_int_noprefix(table_data, 0, 8); /* VATOS address */ > + /* Model */ > + build_append_int_noprefix(table_data, 0 /* Generic SMMU-v3 */, 4); > + build_append_int_noprefix(table_data, irq, 4); /* Event */ > + build_append_int_noprefix(table_data, irq + 1, 4); /* PRI */ > + build_append_int_noprefix(table_data, irq + 3, 4); /* GERR */ > + build_append_int_noprefix(table_data, irq + 2, 4); /* Sync */ > + > /* output IORT node is the ITS group node (the first node) */ > - idmap->output_reference = cpu_to_le32(iort_node_offset); > + build_iort_id_mapping(table_data, 0, 0xFFFF, IORT_NODE_OFFSET); > } > > - /* Root Complex Node */ > - node_size = sizeof(*rc) + sizeof(*idmap) * rc_mapping_count; > - rc = acpi_data_push(table_data, node_size); > - > - rc->type = ACPI_IORT_NODE_PCI_ROOT_COMPLEX; > - rc->length = cpu_to_le16(node_size); > - rc->mapping_count = cpu_to_le32(rc_mapping_count); > - rc->mapping_offset = cpu_to_le32(sizeof(*rc)); > - > - /* fully coherent device */ > - rc->memory_properties.cache_coherency = cpu_to_le32(1); > - rc->memory_properties.memory_flags = 0x3; /* CCA = CPM = DCAS = 1 */ > - rc->pci_segment_number = 0; /* MCFG pci_segment */ > - > + /* Table 16 Root Complex Node */ > + build_append_int_noprefix(table_data, 2 /* Root complex */, 1); /* Type */ > + node_size = ROOT_COMPLEX_ENTRY_SIZE + > + ID_MAPPING_ENTRY_SIZE * rc_mapping_count; > + build_append_int_noprefix(table_data, node_size, 2); /* Length */ > + build_append_int_noprefix(table_data, 0, 1); /* Revision */ > + build_append_int_noprefix(table_data, 0, 4); /* Reserved */ > + /* Number of ID mappings */ > + build_append_int_noprefix(table_data, rc_mapping_count, 4); > + /* Reference to ID Array */ > + build_append_int_noprefix(table_data, ROOT_COMPLEX_ENTRY_SIZE, 4); > + > + /* Table 13 Memory access properties */ > + /* CCA: Cache Coherent Attribute */ > + build_append_int_noprefix(table_data, 1 /* fully coherent */, 4); > + build_append_int_noprefix(table_data, 0, 1); /* AH: Note Allocation Hints */ > + build_append_int_noprefix(table_data, 0, 2); /* Reserved */ > + /* MAF: Note Memory Access Flags */ > + build_append_int_noprefix(table_data, 0x3 /* CCA = CPM = DCAS = 1 */, 1); This is DACS and not DCAS but that's not your fault. we can send a separate trivial patch afterwards to fix the typo. Sanity checking with GICv3 and GICv2 and SMMUv3. Reviewed-by: Eric Auger <eric.auger@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Thank you for the huge refactoring effort Eric > + > + build_append_int_noprefix(table_data, 0, 4); /* ATS Attribute */ > + /* MCFG pci_segment */ > + build_append_int_noprefix(table_data, 0, 4); /* PCI Segment number */ > + > + /* Output Reference */ > if (vms->iommu == VIRT_IOMMU_SMMUV3) { > AcpiIortIdMapping *range; > > /* translated RIDs connect to SMMUv3 node: RC -> SMMUv3 -> ITS */ > for (i = 0; i < smmu_idmaps->len; i++) { > - idmap = &rc->id_mapping_array[i]; > range = &g_array_index(smmu_idmaps, AcpiIortIdMapping, i); > - > - idmap->input_base = cpu_to_le32(range->input_base); > - idmap->id_count = cpu_to_le32(range->id_count); > - idmap->output_base = cpu_to_le32(range->input_base); > /* output IORT node is the smmuv3 node */ > - idmap->output_reference = cpu_to_le32(smmu_offset); > + build_iort_id_mapping(table_data, range->input_base, > + range->id_count, smmu_offset); > } > > /* bypassed RIDs connect to ITS group node directly: RC -> ITS */ > for (i = 0; i < its_idmaps->len; i++) { > - idmap = &rc->id_mapping_array[smmu_idmaps->len + i]; > range = &g_array_index(its_idmaps, AcpiIortIdMapping, i); > - > - idmap->input_base = cpu_to_le32(range->input_base); > - idmap->id_count = cpu_to_le32(range->id_count); > - idmap->output_base = cpu_to_le32(range->input_base); > /* output IORT node is the ITS group node (the first node) */ > - idmap->output_reference = cpu_to_le32(iort_node_offset); > + build_iort_id_mapping(table_data, range->input_base, > + range->id_count, iort_node_offset); > } > } else { > - /* Identity RID mapping covering the whole input RID range */ > - idmap = &rc->id_mapping_array[0]; > - idmap->input_base = cpu_to_le32(0); > - idmap->id_count = cpu_to_le32(0xFFFF); > - idmap->output_base = cpu_to_le32(0); > /* output IORT node is the ITS group node (the first node) */ > - idmap->output_reference = cpu_to_le32(iort_node_offset); > + build_iort_id_mapping(table_data, 0, 0xFFFF, IORT_NODE_OFFSET); > } > > acpi_table_end(linker, &table);
diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h index 195f90caf6..6f2f08a9de 100644 --- a/include/hw/acpi/acpi-defs.h +++ b/include/hw/acpi/acpi-defs.h @@ -188,75 +188,4 @@ struct AcpiGenericTimerTable { } QEMU_PACKED; typedef struct AcpiGenericTimerTable AcpiGenericTimerTable; -/* - * IORT node types - */ - -#define ACPI_IORT_NODE_HEADER_DEF /* Node format common fields */ \ - uint8_t type; \ - uint16_t length; \ - uint8_t revision; \ - uint32_t reserved; \ - uint32_t mapping_count; \ - uint32_t mapping_offset; - -/* Values for node Type above */ -enum { - ACPI_IORT_NODE_ITS_GROUP = 0x00, - ACPI_IORT_NODE_NAMED_COMPONENT = 0x01, - ACPI_IORT_NODE_PCI_ROOT_COMPLEX = 0x02, - ACPI_IORT_NODE_SMMU = 0x03, - ACPI_IORT_NODE_SMMU_V3 = 0x04 -}; - -struct AcpiIortIdMapping { - uint32_t input_base; - uint32_t id_count; - uint32_t output_base; - uint32_t output_reference; - uint32_t flags; -} QEMU_PACKED; -typedef struct AcpiIortIdMapping AcpiIortIdMapping; - -struct AcpiIortMemoryAccess { - uint32_t cache_coherency; - uint8_t hints; - uint16_t reserved; - uint8_t memory_flags; -} QEMU_PACKED; -typedef struct AcpiIortMemoryAccess AcpiIortMemoryAccess; - -struct AcpiIortItsGroup { - ACPI_IORT_NODE_HEADER_DEF - uint32_t its_count; - uint32_t identifiers[]; -} QEMU_PACKED; -typedef struct AcpiIortItsGroup AcpiIortItsGroup; - -#define ACPI_IORT_SMMU_V3_COHACC_OVERRIDE 1 - -struct AcpiIortSmmu3 { - ACPI_IORT_NODE_HEADER_DEF - uint64_t base_address; - uint32_t flags; - uint32_t reserved2; - uint64_t vatos_address; - uint32_t model; - uint32_t event_gsiv; - uint32_t pri_gsiv; - uint32_t gerr_gsiv; - uint32_t sync_gsiv; - AcpiIortIdMapping id_mapping_array[]; -} QEMU_PACKED; -typedef struct AcpiIortSmmu3 AcpiIortSmmu3; - -struct AcpiIortRC { - ACPI_IORT_NODE_HEADER_DEF - AcpiIortMemoryAccess memory_properties; - uint32_t ats_attribute; - uint32_t pci_segment_number; - AcpiIortIdMapping id_mapping_array[]; -} QEMU_PACKED; -typedef struct AcpiIortRC AcpiIortRC; - #endif diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 42ea460313..8c382915a9 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -240,6 +240,28 @@ static void acpi_dsdt_add_tpm(Aml *scope, VirtMachineState *vms) } #endif +#define ID_MAPPING_ENTRY_SIZE 20 +#define SMMU_V3_ENTRY_SIZE 60 +#define ROOT_COMPLEX_ENTRY_SIZE 32 +#define IORT_NODE_OFFSET 48 + +static void build_iort_id_mapping(GArray *table_data, uint32_t input_base, + uint32_t id_count, uint32_t out_ref) +{ + /* Identity RID mapping covering the whole input RID range */ + build_append_int_noprefix(table_data, input_base, 4); /* Input base */ + build_append_int_noprefix(table_data, id_count, 4); /* Number of IDs */ + build_append_int_noprefix(table_data, input_base, 4); /* Output base */ + build_append_int_noprefix(table_data, out_ref, 4); /* Output Reference */ + build_append_int_noprefix(table_data, 0, 4); /* Flags */ +} + +struct AcpiIortIdMapping { + uint32_t input_base; + uint32_t id_count; +}; +typedef struct AcpiIortIdMapping AcpiIortIdMapping; + /* Build the iort ID mapping to SMMUv3 for a given PCI host bridge */ static int iort_host_bridges(Object *obj, void *opaque) @@ -282,17 +304,16 @@ static void build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) { int i, nb_nodes, rc_mapping_count; - AcpiIortIdMapping *idmap; - AcpiIortItsGroup *its; - AcpiIortSmmu3 *smmu; - AcpiIortRC *rc; - const uint32_t iort_node_offset = 48; + const uint32_t iort_node_offset = IORT_NODE_OFFSET; size_t node_size, smmu_offset = 0; + AcpiIortIdMapping *idmap; GArray *smmu_idmaps = g_array_new(false, true, sizeof(AcpiIortIdMapping)); GArray *its_idmaps = g_array_new(false, true, sizeof(AcpiIortIdMapping)); AcpiTable table = { .sig = "IORT", .rev = 0, .oem_id = vms->oem_id, .oem_table_id = vms->oem_table_id }; + /* Table 2 The IORT */ + acpi_table_begin(&table, table_data); if (vms->iommu == VIRT_IOMMU_SMMUV3) { AcpiIortIdMapping next_range = {0}; @@ -330,100 +351,101 @@ build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) nb_nodes = 2; /* RC, ITS */ rc_mapping_count = 1; } - - /* Table 2 The IORT */ - acpi_table_begin(&table, table_data); /* Number of IORT Nodes */ build_append_int_noprefix(table_data, nb_nodes, 4); + /* Offset to Array of IORT Nodes */ - build_append_int_noprefix(table_data, iort_node_offset, 4); + build_append_int_noprefix(table_data, IORT_NODE_OFFSET, 4); build_append_int_noprefix(table_data, 0, 4); /* Reserved */ - /* ITS group node */ - node_size = sizeof(*its) + sizeof(uint32_t); - its = acpi_data_push(table_data, node_size); - - its->type = ACPI_IORT_NODE_ITS_GROUP; - its->length = cpu_to_le16(node_size); - its->its_count = cpu_to_le32(1); - its->identifiers[0] = 0; /* MADT translation_id */ + /* 3.1.1.3 ITS group node */ + build_append_int_noprefix(table_data, 0 /* ITS Group */, 1); /* Type */ + node_size = 20 /* fixed header size */ + 4 /* 1 GIC ITS Identifier */; + build_append_int_noprefix(table_data, node_size, 2); /* Length */ + build_append_int_noprefix(table_data, 0, 1); /* Revision */ + build_append_int_noprefix(table_data, 0, 4); /* Reserved */ + build_append_int_noprefix(table_data, 0, 4); /* Number of ID mappings */ + build_append_int_noprefix(table_data, 0, 4); /* Reference to ID Array */ + build_append_int_noprefix(table_data, 1, 4); /* Number of ITSs */ + /* GIC ITS Identifier Array */ + build_append_int_noprefix(table_data, 0 /* MADT translation_id */, 4); if (vms->iommu == VIRT_IOMMU_SMMUV3) { int irq = vms->irqmap[VIRT_SMMU] + ARM_SPI_BASE; - /* SMMUv3 node */ - smmu_offset = iort_node_offset + node_size; - node_size = sizeof(*smmu) + sizeof(*idmap); - smmu = acpi_data_push(table_data, node_size); - - smmu->type = ACPI_IORT_NODE_SMMU_V3; - smmu->length = cpu_to_le16(node_size); - smmu->mapping_count = cpu_to_le32(1); - smmu->mapping_offset = cpu_to_le32(sizeof(*smmu)); - smmu->base_address = cpu_to_le64(vms->memmap[VIRT_SMMU].base); - smmu->flags = cpu_to_le32(ACPI_IORT_SMMU_V3_COHACC_OVERRIDE); - smmu->event_gsiv = cpu_to_le32(irq); - smmu->pri_gsiv = cpu_to_le32(irq + 1); - smmu->sync_gsiv = cpu_to_le32(irq + 2); - smmu->gerr_gsiv = cpu_to_le32(irq + 3); - - /* Identity RID mapping covering the whole input RID range */ - idmap = &smmu->id_mapping_array[0]; - idmap->input_base = 0; - idmap->id_count = cpu_to_le32(0xFFFF); - idmap->output_base = 0; + smmu_offset = table_data->len - table.table_offset; + /* 3.1.1.2 SMMUv3 */ + build_append_int_noprefix(table_data, 4 /* SMMUv3 */, 1); /* Type */ + node_size = SMMU_V3_ENTRY_SIZE + ID_MAPPING_ENTRY_SIZE; + build_append_int_noprefix(table_data, node_size, 2); /* Length */ + build_append_int_noprefix(table_data, 0, 1); /* Revision */ + build_append_int_noprefix(table_data, 0, 4); /* Reserved */ + build_append_int_noprefix(table_data, 1, 4); /* Number of ID mappings */ + /* Reference to ID Array */ + build_append_int_noprefix(table_data, SMMU_V3_ENTRY_SIZE, 4); + /* Base address */ + build_append_int_noprefix(table_data, vms->memmap[VIRT_SMMU].base, 8); + /* Flags */ + build_append_int_noprefix(table_data, 1 /* COHACC OverrideNote */, 4); + build_append_int_noprefix(table_data, 0, 4); /* Reserved */ + build_append_int_noprefix(table_data, 0, 8); /* VATOS address */ + /* Model */ + build_append_int_noprefix(table_data, 0 /* Generic SMMU-v3 */, 4); + build_append_int_noprefix(table_data, irq, 4); /* Event */ + build_append_int_noprefix(table_data, irq + 1, 4); /* PRI */ + build_append_int_noprefix(table_data, irq + 3, 4); /* GERR */ + build_append_int_noprefix(table_data, irq + 2, 4); /* Sync */ + /* output IORT node is the ITS group node (the first node) */ - idmap->output_reference = cpu_to_le32(iort_node_offset); + build_iort_id_mapping(table_data, 0, 0xFFFF, IORT_NODE_OFFSET); } - /* Root Complex Node */ - node_size = sizeof(*rc) + sizeof(*idmap) * rc_mapping_count; - rc = acpi_data_push(table_data, node_size); - - rc->type = ACPI_IORT_NODE_PCI_ROOT_COMPLEX; - rc->length = cpu_to_le16(node_size); - rc->mapping_count = cpu_to_le32(rc_mapping_count); - rc->mapping_offset = cpu_to_le32(sizeof(*rc)); - - /* fully coherent device */ - rc->memory_properties.cache_coherency = cpu_to_le32(1); - rc->memory_properties.memory_flags = 0x3; /* CCA = CPM = DCAS = 1 */ - rc->pci_segment_number = 0; /* MCFG pci_segment */ - + /* Table 16 Root Complex Node */ + build_append_int_noprefix(table_data, 2 /* Root complex */, 1); /* Type */ + node_size = ROOT_COMPLEX_ENTRY_SIZE + + ID_MAPPING_ENTRY_SIZE * rc_mapping_count; + build_append_int_noprefix(table_data, node_size, 2); /* Length */ + build_append_int_noprefix(table_data, 0, 1); /* Revision */ + build_append_int_noprefix(table_data, 0, 4); /* Reserved */ + /* Number of ID mappings */ + build_append_int_noprefix(table_data, rc_mapping_count, 4); + /* Reference to ID Array */ + build_append_int_noprefix(table_data, ROOT_COMPLEX_ENTRY_SIZE, 4); + + /* Table 13 Memory access properties */ + /* CCA: Cache Coherent Attribute */ + build_append_int_noprefix(table_data, 1 /* fully coherent */, 4); + build_append_int_noprefix(table_data, 0, 1); /* AH: Note Allocation Hints */ + build_append_int_noprefix(table_data, 0, 2); /* Reserved */ + /* MAF: Note Memory Access Flags */ + build_append_int_noprefix(table_data, 0x3 /* CCA = CPM = DCAS = 1 */, 1); + + build_append_int_noprefix(table_data, 0, 4); /* ATS Attribute */ + /* MCFG pci_segment */ + build_append_int_noprefix(table_data, 0, 4); /* PCI Segment number */ + + /* Output Reference */ if (vms->iommu == VIRT_IOMMU_SMMUV3) { AcpiIortIdMapping *range; /* translated RIDs connect to SMMUv3 node: RC -> SMMUv3 -> ITS */ for (i = 0; i < smmu_idmaps->len; i++) { - idmap = &rc->id_mapping_array[i]; range = &g_array_index(smmu_idmaps, AcpiIortIdMapping, i); - - idmap->input_base = cpu_to_le32(range->input_base); - idmap->id_count = cpu_to_le32(range->id_count); - idmap->output_base = cpu_to_le32(range->input_base); /* output IORT node is the smmuv3 node */ - idmap->output_reference = cpu_to_le32(smmu_offset); + build_iort_id_mapping(table_data, range->input_base, + range->id_count, smmu_offset); } /* bypassed RIDs connect to ITS group node directly: RC -> ITS */ for (i = 0; i < its_idmaps->len; i++) { - idmap = &rc->id_mapping_array[smmu_idmaps->len + i]; range = &g_array_index(its_idmaps, AcpiIortIdMapping, i); - - idmap->input_base = cpu_to_le32(range->input_base); - idmap->id_count = cpu_to_le32(range->id_count); - idmap->output_base = cpu_to_le32(range->input_base); /* output IORT node is the ITS group node (the first node) */ - idmap->output_reference = cpu_to_le32(iort_node_offset); + build_iort_id_mapping(table_data, range->input_base, + range->id_count, iort_node_offset); } } else { - /* Identity RID mapping covering the whole input RID range */ - idmap = &rc->id_mapping_array[0]; - idmap->input_base = cpu_to_le32(0); - idmap->id_count = cpu_to_le32(0xFFFF); - idmap->output_base = cpu_to_le32(0); /* output IORT node is the ITS group node (the first node) */ - idmap->output_reference = cpu_to_le32(iort_node_offset); + build_iort_id_mapping(table_data, 0, 0xFFFF, IORT_NODE_OFFSET); } acpi_table_end(linker, &table);
Drop usage of packed structures and explicit endian conversions when building IORT table use endian agnostic build_append_int_noprefix() API to build it. Signed-off-by: Igor Mammedov <imammedo@redhat.com> --- CC: Eric Auger <eric.auger@redhat.com> v4: - (Eric Auger <eric.auger@redhat.com>) * keep nb_nodes * encode 'Memory access properties' as separate entries according to Table 13 * keep some comments v3: * practically rewritten, due to conflicts wiht bypass iommu feature CC: drjones@redhat.com CC: peter.maydell@linaro.org CC: shannon.zhaosl@gmail.com CC: qemu-arm@nongnu.org CC: wangxingang5@huawei.com CC: Eric Auger <eric.auger@redhat.com> --- include/hw/acpi/acpi-defs.h | 71 ---------------- hw/arm/virt-acpi-build.c | 164 ++++++++++++++++++++---------------- 2 files changed, 93 insertions(+), 142 deletions(-)