acpi: use build_append_int_noprefix() API to compose SRAT table

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>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20210924122802.1455362-18-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 17 insertions, 12 deletions

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);