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[PATCH v7 10/13] i386: Introduce use_epyc_apic_id_encoding in X86CPUDefi
From: |
Babu Moger |
Subject: |
[PATCH v7 10/13] i386: Introduce use_epyc_apic_id_encoding in X86CPUDefinition |
Date: |
Wed, 11 Mar 2020 17:53:55 -0500 |
User-agent: |
StGit/unknown-version |
Add a boolean variable use_epyc_apic_id_encoding in X86CPUDefinition.
This will be set if this cpu model needs to use new EPYC based
apic id encoding.
Override the handlers with EPYC based handlers if use_epyc_apic_id_encoding
is set. This will be done in x86_cpus_init.
Signed-off-by: Babu Moger <address@hidden>
---
target/i386/cpu.c | 16 ++++++++++++++++
target/i386/cpu.h | 1 +
2 files changed, 17 insertions(+)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 7361a53166..1e4400df7a 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1614,6 +1614,10 @@ typedef struct X86CPUDefinition {
FeatureWordArray features;
const char *model_id;
CPUCaches *cache_info;
+
+ /* Use AMD EPYC encoding for apic id */
+ bool use_epyc_apic_id_encoding;
+
/*
* Definitions for alternative versions of CPU model.
* List is terminated by item with version == 0.
@@ -1655,6 +1659,18 @@ static const X86CPUVersionDefinition
*x86_cpu_def_get_versions(X86CPUDefinition
return def->versions ?: default_version_list;
}
+bool cpu_x86_use_epyc_apic_id_encoding(const char *cpu_type)
+{
+ X86CPUClass *xcc = X86_CPU_CLASS(object_class_by_name(cpu_type));
+
+ assert(xcc);
+ if (xcc->model && xcc->model->cpudef) {
+ return xcc->model->cpudef->use_epyc_apic_id_encoding;
+ } else {
+ return false;
+ }
+}
+
static CPUCaches epyc_cache_info = {
.l1d_cache = &(CPUCacheInfo) {
.type = DATA_CACHE,
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 7e9e963d78..6e522fcd34 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1897,6 +1897,7 @@ void cpu_clear_apic_feature(CPUX86State *env);
void host_cpuid(uint32_t function, uint32_t count,
uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx);
void host_vendor_fms(char *vendor, int *family, int *model, int *stepping);
+bool cpu_x86_use_epyc_apic_id_encoding(const char *cpu_type);
/* helper.c */
bool x86_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
- [PATCH v7 02/13] hw/i386: Consolidate topology functions, (continued)
- [PATCH v7 02/13] hw/i386: Consolidate topology functions, Babu Moger, 2020/03/11
- [PATCH v7 03/13] machine: Add SMP Sockets in CpuTopology, Babu Moger, 2020/03/11
- [PATCH v7 04/13] hw/i386: Remove unnecessary initialization in x86_cpu_new, Babu Moger, 2020/03/11
- [PATCH v7 05/13] hw/i386: Update structures to save the number of nodes per package, Babu Moger, 2020/03/11
- [PATCH v7 06/13] hw/i386: Rename apicid_from_topo_ids to x86_apicid_from_topo_ids, Babu Moger, 2020/03/11
- [PATCH v7 07/13] hw/386: Add EPYC mode topology decoding functions, Babu Moger, 2020/03/11
- [PATCH v7 08/13] target/i386: Cleanup and use the EPYC mode topology functions, Babu Moger, 2020/03/11
- [PATCH v7 09/13] hw/i386: Introduce apicid functions inside X86MachineState, Babu Moger, 2020/03/11
- [PATCH v7 10/13] i386: Introduce use_epyc_apic_id_encoding in X86CPUDefinition,
Babu Moger <=
- [PATCH v7 11/13] hw/i386: Move arch_id decode inside x86_cpus_init, Babu Moger, 2020/03/11
- [PATCH v7 12/13] target/i386: Enable new apic id encoding for EPYC based cpus models, Babu Moger, 2020/03/11
- [PATCH v7 13/13] i386: Fix pkg_id offset for EPYC cpu models, Babu Moger, 2020/03/11
- Re: [PATCH v7 00/13] APIC ID fixes for AMD EPYC CPU model, Babu Moger, 2020/03/12