From a0e98991b0407527b3d2ce1a6eeeb095e1fbf4a7 Mon Sep 17 00:00:00 2001 From: Luwei Kang Date: Fri, 4 Nov 2016 16:29:18 +0800 Subject: [PATCH] tools/libxc: Add xstate cpuid leaf of avx512 Enable get xstate cpuid leaf information regarding avx512 in guest. Signed-off-by: Luwei Kang Reviewed-by: Andrew Cooper Acked-by: Wei Liu Release-acked-by: Wei Liu --- tools/libxc/xc_cpuid_x86.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/libxc/xc_cpuid_x86.c b/tools/libxc/xc_cpuid_x86.c index de06b32c1b..d761805da0 100644 --- a/tools/libxc/xc_cpuid_x86.c +++ b/tools/libxc/xc_cpuid_x86.c @@ -406,6 +406,9 @@ static void intel_xc_cpuid_policy(xc_interface *xch, #define X86_XCR0_AVX (1ULL << 2) #define X86_XCR0_BNDREG (1ULL << 3) #define X86_XCR0_BNDCSR (1ULL << 4) +#define X86_XCR0_OPMASK (1ULL << 5) +#define X86_XCR0_ZMM (1ULL << 6) +#define X86_XCR0_HI_ZMM (1ULL << 7) #define X86_XCR0_PKRU (1ULL << 9) #define X86_XCR0_LWP (1ULL << 62) @@ -437,6 +440,9 @@ static void xc_cpuid_config_xsave(xc_interface *xch, if ( test_bit(X86_FEATURE_MPX, info->featureset) ) guest_xfeature_mask |= X86_XCR0_BNDREG | X86_XCR0_BNDCSR; + if ( test_bit(X86_FEATURE_AVX512F, info->featureset) ) + guest_xfeature_mask |= X86_XCR0_OPMASK | X86_XCR0_ZMM | X86_XCR0_HI_ZMM; + if ( test_bit(X86_FEATURE_PKU, info->featureset) ) guest_xfeature_mask |= X86_XCR0_PKRU; -- 2.30.2