From 1cf3347a2ebe1fddafed4613dd2dc3d2b0fd6b6c Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Thu, 19 Jun 2014 11:40:18 +0200 Subject: [PATCH] KVM: x86: preserve the high 32-bits of the PAT register commit 7cb060a91c0efc5ff94f83c6df3ed705e143cdb9 upstream. 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 Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- arch/x86/include/asm/kvm_host.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 5829fb7ab3d..8b320722de7 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -445,7 +445,7 @@ struct kvm_vcpu_arch { bool nmi_injected; /* Trying to inject an NMI this entry */ struct mtrr_state_type mtrr_state; - u32 pat; + u64 pat; int switch_db_regs; unsigned long db[KVM_NR_DB_REGS]; -- 2.11.0