On Tue, Jan 30, 2024 at 11:14:59AM +0100, Igor Mammedov wrote: > On Thu, 6 Jul 2023 13:49:49 +0800 > Tao Su <tao1...@linux.intel.com> wrote: > > > The GraniteRapids CPU model mainly adds the following new features > > based on SapphireRapids: > > - PREFETCHITI CPUID.(EAX=7,ECX=1):EDX[bit 14] > > - AMX-FP16 CPUID.(EAX=7,ECX=1):EAX[bit 21] > > it seems the list/definition is not complete, see > https://lore.kernel.org/kvm/20221125125845.1182922-1-jiaxi.c...@linux.intel.com/ > and those feature bits were merged into QEMU earlier > (a9ce107fd0f..d1a11115143) > > were they omited intentionaly? >
No, Jiaxi’s patch series includes new feature bits of both Granite Rapids(GNR) and Sierra Forest(SRF). GNR contains: PREFETCHITI CPUID.(EAX=7,ECX=1):EDX[bit 14] AMX-FP16 CPUID.(EAX=7,ECX=1):EAX[bit 21] SRF contains: 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] What new platforms support the new features can be found in Table 1-2 of ISE[1]. And the SRF CPU model we submitted[2] contains the four feature bits supported above. [1] https://cdrdv2.intel.com/v1/dl/getContent/671368 [2] https://lore.kernel.org/all/20231206131923.1192066-1-tao1...@linux.intel.com/ Thanks, Tao