Hello, The following patches aim to add support for the LFENCE always serializing CPUID bit found in leaf 80000021.eax. In order to do that the featureset needs to be expanded to support leaf 80000021.eax.
Thanks, Roger. Roger Pau Monne (2): x86/amd: split LFENCE dispatch serializing setup logic into helper x86/cpuid: support LFENCE always serializing CPUID bit tools/libs/light/libxl_cpuid.c | 2 + tools/misc/xen-cpuid.c | 6 ++ xen/arch/x86/cpu/amd.c | 69 ++++++++++++--------- xen/arch/x86/cpu/common.c | 3 + xen/arch/x86/cpu/cpu.h | 1 + xen/arch/x86/cpu/hygon.c | 27 +------- xen/include/asm-x86/cpufeatures.h | 2 +- xen/include/public/arch-x86/cpufeatureset.h | 3 + xen/include/xen/lib/x86/cpuid.h | 37 ++++++++++- 9 files changed, 94 insertions(+), 56 deletions(-) -- 2.30.1
