On Wed, Dec 06, 2023 at 09:19:23PM +0800, Tao Su wrote: > Date: Wed, 6 Dec 2023 21:19:23 +0800 > From: Tao Su <tao1...@linux.intel.com> > Subject: [PATCH] target/i386: Add new CPU model SierraForest > X-Mailer: git-send-email 2.34.1 > > SierraForest is Intel's first generation E-core based Xeon server > processor, which will be released in the first half of 2024. > > SierraForest mainly adds the following new features based on > GraniteRapids: > > - CMPCCXADD CPUID.(EAX=7,ECX=1):EAX[bit 7] > - AVX-IFMA CPUID.(EAX=7,ECX=1):EAX[bit 23] > - AVX-VNNI-INT8 CPUID.(EAX=7,ECX=1):EDX[bit 4] > - AVX-NE-CONVERT CPUID.(EAX=7,ECX=1):EDX[bit 5] > - LAM CPUID.(EAX=7,ECX=1):EAX[bit 26] > - LASS CPUID.(EAX=7,ECX=1):EAX[bit 6] > > and removes the following features based on GraniteRapids: > > - HLE CPUID.(EAX=7,ECX=0):EBX[bit 4] > - RTM CPUID.(EAX=7,ECX=0):EBX[bit 11] > - AVX512F CPUID.(EAX=7,ECX=0):EBX[bit 16] > - AVX512DQ CPUID.(EAX=7,ECX=0):EBX[bit 17] > - AVX512_IFMA CPUID.(EAX=7,ECX=0):EBX[bit 21] > - AVX512CD CPUID.(EAX=7,ECX=0):EBX[bit 28] > - AVX512BW CPUID.(EAX=7,ECX=0):EBX[bit 30] > - AVX512VL CPUID.(EAX=7,ECX=0):EBX[bit 31] > - AVX512_VBMI CPUID.(EAX=7,ECX=0):ECX[bit 1] > - AVX512_VBMI2 CPUID.(EAX=7,ECX=0):ECX[bit 6] > - AVX512_VNNI CPUID.(EAX=7,ECX=0):ECX[bit 11] > - AVX512_BITALG CPUID.(EAX=7,ECX=0):ECX[bit 12] > - AVX512_VPOPCNTDQ CPUID.(EAX=7,ECX=0):ECX[bit 14] > - LA57 CPUID.(EAX=7,ECX=0):ECX[bit 16] > - TSXLDTRK CPUID.(EAX=7,ECX=0):EDX[bit 16] > - AMX-BF16 CPUID.(EAX=7,ECX=0):EDX[bit 22] > - AVX512_FP16 CPUID.(EAX=7,ECX=0):EDX[bit 23] > - AMX-TILE CPUID.(EAX=7,ECX=0):EDX[bit 24] > - AMX-INT8 CPUID.(EAX=7,ECX=0):EDX[bit 25] > - AVX512_BF16 CPUID.(EAX=7,ECX=1):EAX[bit 5] > - fast zero-length MOVSB CPUID.(EAX=7,ECX=1):EAX[bit 10] > - fast short CMPSB, SCASB CPUID.(EAX=7,ECX=1):EAX[bit 12] > - AMX-FP16 CPUID.(EAX=7,ECX=1):EAX[bit 21] > - PREFETCHI CPUID.(EAX=7,ECX=1):EDX[bit 14] > - XFD CPUID.(EAX=0xD,ECX=1):EAX[bit 4] > - EPT_PAGE_WALK_LENGTH_5 VMX_EPT_VPID_CAP(0x48c)[bit 7] > > SierraForest doesn't support TSX, so TSX Async Abort(TAA) vulnerabilities > don't exist on SierraForest. On KVM side, if host doesn't enumerate RTM > or RTM gets disabled, ARCH_CAP_TAA_NO is reported as unsupported. To > avoid the confusing warning: > warning: host doesn't support requested feature: MSR(10AH).taa-no > [bit 8] > > just don't include TAA_NO in SierraForest CPU model. > > Currently LAM and LASS are not enabled in KVM mainline yet, will add > them after merged. > > Signed-off-by: Tao Su <tao1...@linux.intel.com> > ---
Reviewed-by: Zhao Liu <zhao1....@intel.com>
