KVM/x86: Update the reverse_cpuid list to include CPUID_7_EDX

commit b7b27aa011a1df42728d1768fc181d9ce69e6911

[dwmw2: Stop using KF() for bits in it, too]
Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Cc: kvm@vger.kernel.org
Cc: Radim Krčmář <rkrcmar@redhat.com>
Link: https://lkml.kernel.org/r/1517522386-18410-2-git-send-email-karahmed@amazon.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 0099e10eb045253f2be9ec19603c55007d5789d1..c0eb337e7878e3e3cf92401629cd87c3bc9bd250 100644 (file)
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -67,9 +67,7 @@ u64 kvm_supported_xcr0(void)
 
 #define F(x) bit(X86_FEATURE_##x)
 
-/* These are scattered features in cpufeatures.h. */
-#define KVM_CPUID_BIT_AVX512_4VNNIW     2
-#define KVM_CPUID_BIT_AVX512_4FMAPS     3
+/* For scattered features from cpufeatures.h; we currently expose none */
 #define KF(x) bit(KVM_CPUID_BIT_##x)
 
 int kvm_update_cpuid(struct kvm_vcpu *vcpu)
@@ -392,7 +390,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
 
        /* cpuid 7.0.edx*/
        const u32 kvm_cpuid_7_0_edx_x86_features =
-               KF(AVX512_4VNNIW) | KF(AVX512_4FMAPS);
+               F(AVX512_4VNNIW) | F(AVX512_4FMAPS);
 
        /* all calls to cpuid_count() should be made on the same cpu */
        get_cpu();
@@ -477,7 +475,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
                        if (!tdp_enabled || !boot_cpu_has(X86_FEATURE_OSPKE))
                                entry->ecx &= ~F(PKU);
                        entry->edx &= kvm_cpuid_7_0_edx_x86_features;
-                       entry->edx &= get_scattered_cpuid_leaf(7, 0, CPUID_EDX);
+                       cpuid_mask(&entry->edx, CPUID_7_EDX);
                } else {
                        entry->ebx = 0;
                        entry->ecx = 0;

diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index c2cea6651279f706f488cf51a523301e6de4ae77..9a327d5b6d1f5bf420c7f15c22cefcdddc921f73 100644 (file)
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -54,6 +54,7 @@ static const struct cpuid_reg reverse_cpuid[] = {
        [CPUID_8000_000A_EDX] = {0x8000000a, 0, CPUID_EDX},
        [CPUID_7_ECX]         = {         7, 0, CPUID_ECX},
        [CPUID_8000_0007_EBX] = {0x80000007, 0, CPUID_EBX},
+       [CPUID_7_EDX]         = {         7, 0, CPUID_EDX},
 };
 
 static __always_inline struct cpuid_reg x86_feature_cpuid(unsigned x86_feature)