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-rw-r--r--hw/acpi/aml-build.c59
-rw-r--r--include/hw/acpi/aml-build.h3
2 files changed, 62 insertions, 0 deletions
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 5195324..b3b3310 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1994,6 +1994,65 @@ static void build_processor_hierarchy_node(GArray *tbl, uint32_t flags,
}
}
+/*
+ * ACPI spec, Revision 6.3
+ * 5.2.29 Processor Properties Topology Table (PPTT)
+ */
+void build_pptt(GArray *table_data, BIOSLinker *linker, MachineState *ms,
+ const char *oem_id, const char *oem_table_id)
+{
+ int pptt_start = table_data->len;
+ int uid = 0;
+ int socket;
+ AcpiTable table = { .sig = "PPTT", .rev = 2,
+ .oem_id = oem_id, .oem_table_id = oem_table_id };
+
+ acpi_table_begin(&table, table_data);
+
+ for (socket = 0; socket < ms->smp.sockets; socket++) {
+ uint32_t socket_offset = table_data->len - pptt_start;
+ int core;
+
+ build_processor_hierarchy_node(
+ table_data,
+ /*
+ * Physical package - represents the boundary
+ * of a physical package
+ */
+ (1 << 0),
+ 0, socket, NULL, 0);
+
+ for (core = 0; core < ms->smp.cores; core++) {
+ uint32_t core_offset = table_data->len - pptt_start;
+ int thread;
+
+ if (ms->smp.threads > 1) {
+ build_processor_hierarchy_node(
+ table_data,
+ (0 << 0), /* not a physical package */
+ socket_offset, core, NULL, 0);
+
+ for (thread = 0; thread < ms->smp.threads; thread++) {
+ build_processor_hierarchy_node(
+ table_data,
+ (1 << 1) | /* ACPI Processor ID valid */
+ (1 << 2) | /* Processor is a Thread */
+ (1 << 3), /* Node is a Leaf */
+ core_offset, uid++, NULL, 0);
+ }
+ } else {
+ build_processor_hierarchy_node(
+ table_data,
+ (1 << 1) | /* ACPI Processor ID valid */
+ (1 << 3), /* Node is a Leaf */
+ socket_offset, uid++, NULL, 0);
+ }
+ }
+ }
+
+ acpi_table_end(linker, &table);
+}
+
/* build rev1/rev3/rev5.1 FADT */
void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f,
const char *oem_id, const char *oem_table_id)
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 3cf6f2c..8346003 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -489,6 +489,9 @@ void build_srat_memory(GArray *table_data, uint64_t base,
void build_slit(GArray *table_data, BIOSLinker *linker, MachineState *ms,
const char *oem_id, const char *oem_table_id);
+void build_pptt(GArray *table_data, BIOSLinker *linker, MachineState *ms,
+ const char *oem_id, const char *oem_table_id);
+
void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f,
const char *oem_id, const char *oem_table_id);