it replaces error-prone pointer arithmetic for build_header() API,
with 2 calls to start and finish table creation,
which hides offsets magic from API user.
Signed-off-by: Igor Mammedov <imamm...@redhat.com>
---
CC: drjo...@redhat.com
CC: peter.mayd...@linaro.org
CC: shannon.zha...@gmail.com
CC: qemu-...@nongnu.org
---
include/hw/acpi/acpi-defs.h | 14 ------------
hw/arm/virt-acpi-build.c | 43 +++++++++++++++----------------------
2 files changed, 17 insertions(+), 40 deletions(-)
diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h
index bcada37601..195f90caf6 100644
--- a/include/hw/acpi/acpi-defs.h
+++ b/include/hw/acpi/acpi-defs.h
@@ -188,20 +188,6 @@ struct AcpiGenericTimerTable {
} QEMU_PACKED;
typedef struct AcpiGenericTimerTable AcpiGenericTimerTable;
-/*
- * Input Output Remapping Table (IORT)
- * Conforms to "IO Remapping Table System Software on ARM Platforms",
- * Document number: ARM DEN 0049B, October 2015
- */
-
-struct AcpiIortTable {
- ACPI_TABLE_HEADER_DEF /* ACPI common table header */
- uint32_t node_count;
- uint32_t node_offset;
- uint32_t reserved;
-} QEMU_PACKED;
-typedef struct AcpiIortTable AcpiIortTable;
-
/*
* IORT node types
*/
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index d15e67a39b..ac5e07e43c 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -239,18 +239,22 @@ static void acpi_dsdt_add_tpm(Aml *scope,
VirtMachineState *vms)
}
#endif
+/*
+ * Input Output Remapping Table (IORT)
+ * Conforms to "IO Remapping Table System Software on ARM Platforms",
+ * Document number: ARM DEN 0049B, October 2015
+ */
static void
build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
{
- int nb_nodes, iort_start = table_data->len;
+ int nb_nodes;
AcpiIortIdMapping *idmap;
AcpiIortItsGroup *its;
- AcpiIortTable *iort;
AcpiIortSmmu3 *smmu;
- size_t node_size, iort_node_offset, iort_length, smmu_offset = 0;
+ size_t node_size, iort_node_offset = 48, smmu_offset = 0;
AcpiIortRC *rc;
-
- iort = acpi_data_push(table_data, sizeof(*iort));
+ AcpiTable table = { .sig = "IORT", .rev = 0, .oem_id = vms->oem_id,
+ .oem_table_id = vms->oem_table_id };
if (vms->iommu == VIRT_IOMMU_SMMUV3) {
nb_nodes = 3; /* RC, ITS, SMMUv3 */
@@ -258,18 +262,16 @@ build_iort(GArray *table_data, BIOSLinker *linker,
VirtMachineState *vms)
nb_nodes = 2; /* RC, ITS */
}
- iort_length = sizeof(*iort);
- iort->node_count = cpu_to_le32(nb_nodes);
- /*
- * Use a copy in case table_data->data moves during acpi_data_push
- * operations.
- */
- iort_node_offset = sizeof(*iort);
- iort->node_offset = cpu_to_le32(iort_node_offset);
+ /* Table 2 The IORT */
+ acpi_init_table(&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, 0, 4); /* Reserved */
/* ITS group node */
node_size = sizeof(*its) + sizeof(uint32_t);
- iort_length += node_size;
its = acpi_data_push(table_data, node_size);
its->type = ACPI_IORT_NODE_ITS_GROUP;
@@ -283,7 +285,6 @@ build_iort(GArray *table_data, BIOSLinker *linker,
VirtMachineState *vms)
/* SMMUv3 node */
smmu_offset = iort_node_offset + node_size;
node_size = sizeof(*smmu) + sizeof(*idmap);
- iort_length += node_size;
smmu = acpi_data_push(table_data, node_size);
smmu->type = ACPI_IORT_NODE_SMMU_V3;
@@ -308,7 +309,6 @@ build_iort(GArray *table_data, BIOSLinker *linker,
VirtMachineState *vms)
/* Root Complex Node */
node_size = sizeof(*rc) + sizeof(*idmap);
- iort_length += node_size;
rc = acpi_data_push(table_data, node_size);
rc->type = ACPI_IORT_NODE_PCI_ROOT_COMPLEX;
@@ -335,16 +335,7 @@ build_iort(GArray *table_data, BIOSLinker *linker,
VirtMachineState *vms)
idmap->output_reference = cpu_to_le32(iort_node_offset);
}
- /*
- * Update the pointer address in case table_data->data moves during above
- * acpi_data_push operations.
- */
- iort = (AcpiIortTable *)(table_data->data + iort_start);
- iort->length = cpu_to_le32(iort_length);
-
- build_header(linker, table_data, (void *)(table_data->data + iort_start),
- "IORT", table_data->len - iort_start, 0, vms->oem_id,
- vms->oem_table_id);
+ acpi_table_composed(linker, &table);
}
static void
--
2.27.0
