From: Luwei Kang Date: Fri, 4 Nov 2016 08:29:18 +0000 (+0800) Subject: tools/libxc: Add xstate cpuid leaf of avx512 X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~121 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=a0e98991b0407527b3d2ce1a6eeeb095e1fbf4a7;p=xen.git 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 --- 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;