From 4daa8dca77edec191dfe0ae4a0a9fc70f8f63607 Mon Sep 17 00:00:00 2001 From: "Dr. David Alan Gilbert" Date: Wed, 24 Feb 2021 11:30:37 -0500 Subject: [PATCH 4/4] i386: Add the support for AMD EPYC 3rd generation processors RH-Author: Dr. David Alan Gilbert Message-id: <20210224113037.15599-5-dgilbert@redhat.com> Patchwork-id: 101202 O-Subject: [RHEL-8.4.0 qemu-kvm PATCH 4/4] i386: Add the support for AMD EPYC 3rd generation processors Bugzilla: 1790620 RH-Acked-by: Cornelia Huck RH-Acked-by: Sergio Lopez Pascual RH-Acked-by: Peter Xu From: Babu Moger Adds the support for AMD 3rd generation processors. The model display for the new processor will be EPYC-Milan. Adds the following new feature bits on top of the feature bits from the first and second generation EPYC models. pcid : Process context identifiers support ibrs : Indirect Branch Restricted Speculation ssbd : Speculative Store Bypass Disable erms : Enhanced REP MOVSB/STOSB support fsrm : Fast Short REP MOVSB support invpcid : Invalidate processor context ID pku : Protection keys support svme-addr-chk : SVM instructions address check for #GP handling Depends on the following kernel commits: 14c2bf81fcd2 ("KVM: SVM: Fix #GP handling for doubly-nested virtualization") 3b9c723ed7cf ("KVM: SVM: Add support for SVM instruction address check change") 4aa2691dcbd3 ("8ce1c461188799d863398dd2865d KVM: x86: Factor out x86 instruction emulation with decoding") 4407a797e941 ("KVM: SVM: Enable INVPCID feature on AMD") 9715092f8d7e ("KVM: X86: Move handling of INVPCID types to x86") 3f3393b3ce38 ("KVM: X86: Rename and move the function vmx_handle_memory_failure to x86.c") 830bd71f2c06 ("KVM: SVM: Remove set_cr_intercept, clr_cr_intercept and is_cr_intercept") 4c44e8d6c193 ("KVM: SVM: Add new intercept word in vmcb_control_area") c62e2e94b9d4 ("KVM: SVM: Modify 64 bit intercept field to two 32 bit vectors") 9780d51dc2af ("KVM: SVM: Modify intercept_exceptions to generic intercepts") 30abaa88382c ("KVM: SVM: Change intercept_dr to generic intercepts") 03bfeeb988a9 ("KVM: SVM: Change intercept_cr to generic intercepts") c45ad7229d13 ("KVM: SVM: Introduce vmcb_(set_intercept/clr_intercept/_is_intercept)") a90c1ed9f11d ("(pcid) KVM: nSVM: Remove unused field") fa44b82eb831 ("KVM: x86: Move MPK feature detection to common code") 38f3e775e9c2 ("x86/Kconfig: Update config and kernel doc for MPK feature on AMD") 37486135d3a7 ("KVM: x86: Fix pkru save/restore when guest CR4.PKE=0, move it to x86.c") Signed-off-by: Babu Moger Message-Id: <161290460478.11352.8933244555799318236.stgit@bmoger-ubuntu> Signed-off-by: Eduardo Habkost (cherry picked from commit 623972ceae091b31331ae4a1dc94fe5cbb891937) Signed-off-by: Danilo C. L. de Paula --- target/i386/cpu.c | 107 +++++++++++++++++++++++++++++++++++++++++++++- target/i386/cpu.h | 4 ++ 2 files changed, 110 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 7227c803c3..d5b0d4b7f0 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1133,7 +1133,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = { "clzero", NULL, "xsaveerptr", NULL, NULL, NULL, NULL, NULL, NULL, "wbnoinvd", NULL, NULL, - "ibpb", NULL, NULL, "amd-stibp", + "ibpb", NULL, "ibrs", "amd-stibp", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "amd-ssbd", "virt-ssbd", "amd-no-ssb", NULL, @@ -1853,6 +1853,56 @@ static CPUCaches epyc_rome_cache_info = { }, }; +static CPUCaches epyc_milan_cache_info = { + .l1d_cache = &(CPUCacheInfo) { + .type = DATA_CACHE, + .level = 1, + .size = 32 * KiB, + .line_size = 64, + .associativity = 8, + .partitions = 1, + .sets = 64, + .lines_per_tag = 1, + .self_init = 1, + .no_invd_sharing = true, + }, + .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 = 1, + .no_invd_sharing = true, + }, + .l2_cache = &(CPUCacheInfo) { + .type = UNIFIED_CACHE, + .level = 2, + .size = 512 * KiB, + .line_size = 64, + .associativity = 8, + .partitions = 1, + .sets = 1024, + .lines_per_tag = 1, + }, + .l3_cache = &(CPUCacheInfo) { + .type = UNIFIED_CACHE, + .level = 3, + .size = 32 * MiB, + .line_size = 64, + .associativity = 16, + .partitions = 1, + .sets = 32768, + .lines_per_tag = 1, + .self_init = true, + .inclusive = true, + .complex_indexing = true, + }, +}; + /* The following VMX features are not supported by KVM and are left out in the * CPU definitions: * @@ -4124,6 +4174,61 @@ static X86CPUDefinition builtin_x86_defs[] = { .model_id = "AMD EPYC-Rome Processor", .cache_info = &epyc_rome_cache_info, }, + { + .name = "EPYC-Milan", + .level = 0xd, + .vendor = CPUID_VENDOR_AMD, + .family = 25, + .model = 1, + .stepping = 1, + .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_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_CX16 | CPUID_EXT_FMA | CPUID_EXT_SSSE3 | + CPUID_EXT_MONITOR | CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3 | + CPUID_EXT_PCID, + .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_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_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_AMD_SSBD, + .features[FEAT_7_0_EBX] = + CPUID_7_0_EBX_FSGSBASE | CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_AVX2 | + CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_RDSEED | + CPUID_7_0_EBX_ADX | CPUID_7_0_EBX_SMAP | CPUID_7_0_EBX_CLFLUSHOPT | + CPUID_7_0_EBX_SHA_NI | CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_ERMS | + CPUID_7_0_EBX_INVPCID, + .features[FEAT_7_0_ECX] = + CPUID_7_0_ECX_UMIP | CPUID_7_0_ECX_RDPID | CPUID_7_0_ECX_PKU, + .features[FEAT_7_0_EDX] = + CPUID_7_0_EDX_FSRM, + .features[FEAT_XSAVE] = + CPUID_XSAVE_XSAVEOPT | CPUID_XSAVE_XSAVEC | + CPUID_XSAVE_XGETBV1 | CPUID_XSAVE_XSAVES, + .features[FEAT_6_EAX] = + CPUID_6_EAX_ARAT, + .features[FEAT_SVM] = + CPUID_SVM_NPT | CPUID_SVM_NRIPSAVE | CPUID_SVM_SVME_ADDR_CHK, + .xlevel = 0x8000001E, + .model_id = "AMD EPYC-Milan Processor", + .cache_info = &epyc_milan_cache_info, + }, }; /* KVM-specific features that are automatically added/removed diff --git a/target/i386/cpu.h b/target/i386/cpu.h index e1b67910c2..7a3aa40201 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -800,8 +800,12 @@ typedef uint64_t FeatureWordArray[FEATURE_WORDS]; #define CPUID_8000_0008_EBX_WBNOINVD (1U << 9) /* Indirect Branch Prediction Barrier */ #define CPUID_8000_0008_EBX_IBPB (1U << 12) +/* Indirect Branch Restricted Speculation */ +#define CPUID_8000_0008_EBX_IBRS (1U << 14) /* Single Thread Indirect Branch Predictors */ #define CPUID_8000_0008_EBX_STIBP (1U << 15) +/* Speculative Store Bypass Disable */ +#define CPUID_8000_0008_EBX_AMD_SSBD (1U << 24) #define CPUID_XSAVE_XSAVEOPT (1U << 0) #define CPUID_XSAVE_XSAVEC (1U << 1) -- 2.27.0