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[RFC PATCH v2 4/6] hw/acpi/aml-build: Add processor hierarchy node struc
From: |
Yanan Wang |
Subject: |
[RFC PATCH v2 4/6] hw/acpi/aml-build: Add processor hierarchy node structure |
Date: |
Tue, 13 Apr 2021 16:07:43 +0800 |
Add a generic API to build Processor Hierarchy Node Structure(Type 0),
which is strictly consistent with descriptions in ACPI 6.3: 5.2.29.1.
This function will be used to build ACPI PPTT table for cpu topology.
Signed-off-by: Ying Fang <fangying1@huawei.com>
Signed-off-by: Henglong Fan <fanhenglong@huawei.com>
Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
---
hw/acpi/aml-build.c | 27 +++++++++++++++++++++++++++
include/hw/acpi/aml-build.h | 4 ++++
2 files changed, 31 insertions(+)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index d33ce8954a..75e01aea17 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1916,6 +1916,33 @@ void build_slit(GArray *table_data, BIOSLinker *linker,
MachineState *ms,
table_data->len - slit_start, 1, oem_id, oem_table_id);
}
+/*
+ * ACPI 6.3: 5.2.29.1 Processor Hierarchy Node Structure (Type 0)
+ */
+void build_processor_hierarchy_node(GArray *tbl, uint32_t flags,
+ uint32_t parent, uint32_t id,
+ uint32_t *priv_rsrc, uint32_t priv_num)
+{
+ int i;
+
+ build_append_byte(tbl, 0); /* Type 0 - processor */
+ build_append_byte(tbl, 20 + priv_num * 4); /* Length */
+ build_append_int_noprefix(tbl, 0, 2); /* Reserved */
+ build_append_int_noprefix(tbl, flags, 4); /* Flags */
+ build_append_int_noprefix(tbl, parent, 4); /* Parent */
+ build_append_int_noprefix(tbl, id, 4); /* ACPI processor ID */
+
+ /* Number of private resources */
+ build_append_int_noprefix(tbl, priv_num, 4);
+
+ /* Private resources[N] */
+ if (priv_num > 0 && priv_rsrc != NULL) {
+ for (i = 0; i < priv_num; i++) {
+ build_append_int_noprefix(tbl, priv_rsrc[i], 4);
+ }
+ }
+}
+
/* 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 471266d739..ea74b8f6ed 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -462,6 +462,10 @@ void build_srat_memory(AcpiSratMemoryAffinity *numamem,
uint64_t base,
void build_slit(GArray *table_data, BIOSLinker *linker, MachineState *ms,
const char *oem_id, const char *oem_table_id);
+void build_processor_hierarchy_node(GArray *tbl, uint32_t flags,
+ uint32_t parent, uint32_t id,
+ uint32_t *priv_rsrc, uint32_t priv_num);
+
void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f,
const char *oem_id, const char *oem_table_id);
--
2.19.1
- [RFC PATCH v2 1/6] device_tree: Add qemu_fdt_add_path, (continued)
[RFC PATCH v2 2/6] hw/arm/virt: DT: Add cpu-map, Yanan Wang, 2021/04/13
[RFC PATCH v2 4/6] hw/acpi/aml-build: Add processor hierarchy node structure,
Yanan Wang <=
[RFC PATCH v2 6/6] hw/arm/virt: Replace smp_parse with one that prefers cores, Yanan Wang, 2021/04/13
[RFC PATCH v2 5/6] hw/arm/virt-acpi-build: Add PPTT table, Yanan Wang, 2021/04/13