[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <tip-91713faf386be6d7e6556b656436813f8c4ee552@git.kernel.org>
Date: Tue, 24 Nov 2015 01:32:49 -0800
From: tip-bot for Borislav Petkov <tipbot@...or.com>
To: linux-tip-commits@...r.kernel.org
Cc: pbonzini@...hat.com, dvlasenk@...hat.com, brgerst@...il.com,
linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
bp@...en8.de, peterz@...radead.org, hpa@...or.com, bp@...e.de,
tglx@...utronix.de, mingo@...nel.org, luto@...capital.net
Subject: [tip:x86/cpu] kvm: Add accessors for guest CPU's family, model,
stepping
Commit-ID: 91713faf386be6d7e6556b656436813f8c4ee552
Gitweb: http://git.kernel.org/tip/91713faf386be6d7e6556b656436813f8c4ee552
Author: Borislav Petkov <bp@...e.de>
AuthorDate: Mon, 23 Nov 2015 11:12:22 +0100
Committer: Ingo Molnar <mingo@...nel.org>
CommitDate: Tue, 24 Nov 2015 09:15:54 +0100
kvm: Add accessors for guest CPU's family, model, stepping
Those give the family, model and stepping of the guest vcpu.
Signed-off-by: Borislav Petkov <bp@...e.de>
Reviewed-by: Paolo Bonzini <pbonzini@...hat.com>
Cc: Andy Lutomirski <luto@...capital.net>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Brian Gerst <brgerst@...il.com>
Cc: Denys Vlasenko <dvlasenk@...hat.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Link: http://lkml.kernel.org/r/1448273546-2567-3-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
arch/x86/kvm/cpuid.h | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index 06332cb..5d47e0d 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -2,6 +2,7 @@
#define ARCH_X86_KVM_CPUID_H
#include "x86.h"
+#include <asm/cpu.h>
int kvm_update_cpuid(struct kvm_vcpu *vcpu);
struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
@@ -170,4 +171,37 @@ static inline bool guest_cpuid_has_nrips(struct kvm_vcpu *vcpu)
}
#undef BIT_NRIPS
+static inline int guest_cpuid_family(struct kvm_vcpu *vcpu)
+{
+ struct kvm_cpuid_entry2 *best;
+
+ best = kvm_find_cpuid_entry(vcpu, 0x1, 0);
+ if (!best)
+ return -1;
+
+ return x86_family(best->eax);
+}
+
+static inline int guest_cpuid_model(struct kvm_vcpu *vcpu)
+{
+ struct kvm_cpuid_entry2 *best;
+
+ best = kvm_find_cpuid_entry(vcpu, 0x1, 0);
+ if (!best)
+ return -1;
+
+ return x86_model(best->eax);
+}
+
+static inline int guest_cpuid_stepping(struct kvm_vcpu *vcpu)
+{
+ struct kvm_cpuid_entry2 *best;
+
+ best = kvm_find_cpuid_entry(vcpu, 0x1, 0);
+ if (!best)
+ return -1;
+
+ return x86_stepping(best->eax);
+}
+
#endif
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists