From: Ben Cheatham <Benjamin.Cheatham@amd.com>
To: <qemu-devel@nongnu.org>
Cc: <pbonzini@redhat.com>, <zhao1.liu@intel.com>,
<babu.moger@amd.com>, "Ben Cheatham" <Benjamin.Cheatham@amd.com>
Subject: [PATCH v2 4/4] target/i386: Add EPYC-Venice CPU model
Date: Tue, 25 Aug 2026 11:25:44 -0500 [thread overview]
Message-ID: <20260825162544.18633-5-Benjamin.Cheatham@amd.com> (raw)
In-Reply-To: <20260825162544.18633-1-Benjamin.Cheatham@amd.com>
Add support for AMD EPYC Zen 6 processors (EPYC-Venice). Add the
following new feature bits on top of the feature bits from the previous
generation EPYC model (Turin):
avx512_fp16 : AVX512 FP16 instructions support
avx_ifma : AVX512 Integer Fused Mul-Add instructions support
avx_ne_convert : AVX NE-CONVERT instructions support
avx_vnni_int8 : AVX VNNI INT8 instruction
avx512_bmm : AVX512 Bit Matrix Multiply instruction
eraps : Enhanced Return Address Prediction Security support
(see also: rapsize)
tsc_adjust : Time Stamp Counter Adjustment support
cet_ss : Shadow Stack support
Signed-off-by: Ben Cheatham <Benjamin.Cheatham@amd.com>
---
target/i386/cpu.c | 141 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 141 insertions(+)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 8805657f01de..21a1560ca055 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -3049,6 +3049,59 @@ static const CPUCaches epyc_turin_cache_info = {
}
};
+static const CPUCaches epyc_venice_cache_info = {
+ .l1d_cache = &(CPUCacheInfo) {
+ .type = DATA_CACHE,
+ .level = 1,
+ .size = 48 * KiB,
+ .line_size = 64,
+ .associativity = 12,
+ .partitions = 1,
+ .sets = 64,
+ .lines_per_tag = 1,
+ .self_init = true,
+ .share_level = CPU_TOPOLOGY_LEVEL_CORE,
+ },
+ .l1i_cache = &(CPUCacheInfo) {
+ .type = INSTRUCTION_CACHE,
+ .level = 1,
+ .size = 32 * KiB,
+ .line_size = 64,
+ .associativity = 8,
+ .partitions = 1,
+ .sets = 64,
+ .lines_per_tag = 1,
+ .self_init = true,
+ .share_level = CPU_TOPOLOGY_LEVEL_CORE,
+ },
+ .l2_cache = &(CPUCacheInfo) {
+ .type = UNIFIED_CACHE,
+ .level = 2,
+ .size = 1 * MiB,
+ .line_size = 64,
+ .associativity = 16,
+ .partitions = 1,
+ .sets = 1024,
+ .lines_per_tag = 1,
+ .self_init = true,
+ .inclusive = true,
+ .share_level = CPU_TOPOLOGY_LEVEL_CORE,
+ },
+ .l3_cache = &(CPUCacheInfo) {
+ .type = UNIFIED_CACHE,
+ .level = 3,
+ .size = 64 * MiB,
+ .line_size = 64,
+ .associativity = 16,
+ .partitions = 1,
+ .sets = 65536,
+ .lines_per_tag = 1,
+ .self_init = true,
+ .no_invd_sharing = true,
+ .complex_indexing = false,
+ .share_level = CPU_TOPOLOGY_LEVEL_DIE,
+ }
+};
static const CPUCaches xeon_spr_cache_info = {
.l1d_cache = &(CPUCacheInfo) {
/* CPUID 0x4.0x0.EAX */
@@ -7310,6 +7363,94 @@ static const X86CPUDefinition builtin_x86_defs[] = {
{ /* end of list */ }
}
},
+ {
+ .name = "EPYC-Venice",
+ .level = 0xd,
+ .vendor = CPUID_VENDOR_AMD,
+ .family = 26,
+ .model = 80,
+ .stepping = 0,
+ .features[FEAT_1_ECX] =
+ CPUID_EXT_RDRAND | CPUID_EXT_F16C | CPUID_EXT_AVX |
+ CPUID_EXT_XSAVE | CPUID_EXT_AES | CPUID_EXT_POPCNT |
+ CPUID_EXT_MOVBE | CPUID_EXT_SSE42 | CPUID_EXT_SSE41 |
+ CPUID_EXT_PCID | CPUID_EXT_CX16 | CPUID_EXT_FMA |
+ CPUID_EXT_SSSE3 | CPUID_EXT_MONITOR | CPUID_EXT_PCLMULQDQ |
+ CPUID_EXT_SSE3,
+ .features[FEAT_1_EDX] =
+ CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX | CPUID_CLFLUSH |
+ CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA | CPUID_PGE |
+ CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 | CPUID_MCE |
+ CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE | CPUID_DE |
+ CPUID_VME | CPUID_FP87,
+ .features[FEAT_6_EAX] =
+ CPUID_6_EAX_ARAT,
+ .features[FEAT_7_0_EBX] =
+ CPUID_7_0_EBX_FSGSBASE | CPUID_7_0_EBX_TSC_ADJUST |
+ CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_AVX2 |
+ CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ERMS |
+ CPUID_7_0_EBX_INVPCID | CPUID_7_0_EBX_AVX512F |
+ CPUID_7_0_EBX_AVX512DQ | CPUID_7_0_EBX_RDSEED | CPUID_7_0_EBX_ADX |
+ CPUID_7_0_EBX_SMAP | CPUID_7_0_EBX_AVX512IFMA |
+ CPUID_7_0_EBX_CLFLUSHOPT | CPUID_7_0_EBX_CLWB |
+ CPUID_7_0_EBX_AVX512CD | CPUID_7_0_EBX_SHA_NI |
+ CPUID_7_0_EBX_AVX512BW | CPUID_7_0_EBX_AVX512VL,
+ .features[FEAT_7_0_ECX] =
+ CPUID_7_0_ECX_AVX512_VBMI | CPUID_7_0_ECX_UMIP | CPUID_7_0_ECX_PKU |
+ CPUID_7_0_ECX_AVX512_VBMI2 | CPUID_7_0_ECX_CET_SHSTK |
+ CPUID_7_0_ECX_GFNI | CPUID_7_0_ECX_VAES | CPUID_7_0_ECX_VPCLMULQDQ |
+ CPUID_7_0_ECX_AVX512VNNI | CPUID_7_0_ECX_AVX512BITALG |
+ CPUID_7_0_ECX_AVX512_VPOPCNTDQ | CPUID_7_0_ECX_LA57 |
+ CPUID_7_0_ECX_RDPID | CPUID_7_0_ECX_MOVDIRI |
+ CPUID_7_0_ECX_MOVDIR64B,
+ .features[FEAT_7_0_EDX] =
+ CPUID_7_0_EDX_FSRM | CPUID_7_0_EDX_AVX512_VP2INTERSECT |
+ CPUID_7_0_EDX_AVX512_FP16,
+ .features[FEAT_7_1_EAX] =
+ CPUID_7_1_EAX_AVX512_BF16 | CPUID_7_1_EAX_AVX_IFMA,
+ .features[FEAT_7_1_EDX] =
+ CPUID_7_1_EDX_AVX_VNNI_INT8 | CPUID_7_1_EDX_AVX_NE_CONVERT,
+ .features[FEAT_8000_0001_ECX] =
+ CPUID_EXT3_OSVW | CPUID_EXT3_3DNOWPREFETCH |
+ CPUID_EXT3_MISALIGNSSE | CPUID_EXT3_SSE4A | CPUID_EXT3_ABM |
+ CPUID_EXT3_CR8LEG | CPUID_EXT3_SVM | CPUID_EXT3_LAHF_LM |
+ CPUID_EXT3_TOPOEXT | CPUID_EXT3_PERFCORE,
+ .features[FEAT_8000_0001_EDX] =
+ CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_PDPE1GB |
+ CPUID_EXT2_FFXSR | CPUID_EXT2_MMXEXT | CPUID_EXT2_NX |
+ CPUID_EXT2_SYSCALL,
+ .features[FEAT_8000_0007_EBX] =
+ CPUID_8000_0007_EBX_OVERFLOW_RECOV | CPUID_8000_0007_EBX_SUCCOR,
+ .features[FEAT_8000_0008_EBX] =
+ CPUID_8000_0008_EBX_CLZERO | CPUID_8000_0008_EBX_XSAVEERPTR |
+ CPUID_8000_0008_EBX_WBNOINVD | CPUID_8000_0008_EBX_IBPB |
+ CPUID_8000_0008_EBX_IBRS | CPUID_8000_0008_EBX_STIBP |
+ CPUID_8000_0008_EBX_STIBP_ALWAYS_ON |
+ CPUID_8000_0008_EBX_AMD_SSBD | CPUID_8000_0008_EBX_AMD_PSFD,
+ .features[FEAT_8000_0021_EAX] =
+ CPUID_8000_0021_EAX_NO_NESTED_DATA_BP |
+ CPUID_8000_0021_EAX_FS_GS_BASE_NS |
+ CPUID_8000_0021_EAX_LFENCE_ALWAYS_SERIALIZING |
+ CPUID_8000_0021_EAX_NULL_SEL_CLR_BASE |
+ CPUID_8000_0021_EAX_AUTO_IBRS | CPUID_8000_0021_EAX_PREFETCHI |
+ CPUID_8000_0021_EAX_AVX512_BMM | CPUID_8000_0021_EAX_ERAPS |
+ CPUID_8000_0021_EAX_SBPB | CPUID_8000_0021_EAX_IBPB_BRTYPE |
+ CPUID_8000_0021_EAX_SRSO_USER_KERNEL_NO,
+ .features[FEAT_8000_0022_EAX] =
+ CPUID_8000_0022_EAX_PERFMON_V2,
+ .features[FEAT_XSAVE] =
+ CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC |
+ CPUID_XSAVE_XGETBV1 | CPUID_XSAVE_XSAVES,
+ .features[FEAT_SVM] =
+ CPUID_SVM_NPT | CPUID_SVM_LBRV | CPUID_SVM_NRIPSAVE |
+ CPUID_SVM_TSCSCALE | CPUID_SVM_VMCBCLEAN | CPUID_SVM_FLUSHASID |
+ CPUID_SVM_PAUSEFILTER | CPUID_SVM_PFTHRESHOLD |
+ CPUID_SVM_V_VMSAVE_VMLOAD | CPUID_SVM_VGIF |
+ CPUID_SVM_VNMI | CPUID_SVM_SVME_ADDR_CHK,
+ .xlevel = 0x80000022,
+ .model_id = "AMD EPYC-Venice Processor",
+ .cache_info = &epyc_venice_cache_info,
+ },
};
/*
--
2.53.0
prev parent reply other threads:[~2026-08-25 16:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-25 16:25 [PATCH v2 0/4] Add Support for AMD EPYC Zen 6 CPU Model Ben Cheatham
2026-08-25 16:25 ` [PATCH v2 1/4] target/i386: Add AVX512 Bit Matrix Multiply (BMM) support Ben Cheatham
2026-08-25 16:25 ` [PATCH v2 2/4] target/i386: Update RAPSIZE definition Ben Cheatham
2026-08-25 16:25 ` [PATCH v2 3/4] target/i386: Add getting RAPSIZE for ERAPS enabled guests Ben Cheatham
2026-08-25 16:25 ` Ben Cheatham [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260825162544.18633-5-Benjamin.Cheatham@amd.com \
--to=benjamin.cheatham@amd.com \
--cc=babu.moger@amd.com \
--cc=pbonzini@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=zhao1.liu@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.