Commit 7cb060a9 authored Jun 19, 2014 by Paolo Bonzini

KVM: x86: preserve the high 32-bits of the PAT register



KVM does not really do much with the PAT, so this went unnoticed for a
long time.  It is exposed however if you try to do rdmsr on the PAT
register.

Reported-by: Valentine Sinitsyn <valentine.sinitsyn@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent e1fa108d

arch/x86/include/asm/kvm_host.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -461,7 +461,7 @@ struct kvm_vcpu_arch {
		bool nmi_injected; /* Trying to inject an NMI this entry */

		struct mtrr_state_type mtrr_state;
		u32 pat;
		u64 pat;

		unsigned switch_db_regs;
		unsigned long db[KVM_NR_DB_REGS];