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Commit a3a06367 authored by Avi Kivity's avatar Avi Kivity
Browse files

KVM: Set cr0.mp for guests 



This allows fwait instructions to be trapped when the guest fpu is not
loaded.

Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 5fd86fcf

drivers/kvm/kvm.h

+3 −1
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/kvm_para.h>



#define CR0_PE_MASK (1ULL << 0)

#define CR0_MP_MASK (1ULL << 1)

#define CR0_TS_MASK (1ULL << 3)

#define CR0_NE_MASK (1ULL << 5)

#define CR0_WP_MASK (1ULL << 16)
@@ -42,7 +43,8 @@ 
	(CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK \

	 | CR0_NW_MASK | CR0_CD_MASK)

#define KVM_VM_CR0_ALWAYS_ON \

	(CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK | CR0_TS_MASK)

	(CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK | CR0_TS_MASK \

	 | CR0_MP_MASK)

#define KVM_GUEST_CR4_MASK \

	(CR4_PSE_MASK | CR4_PAE_MASK | CR4_PGE_MASK | CR4_VMXE_MASK | CR4_VME_MASK)

#define KVM_PMODE_VM_CR4_ALWAYS_ON (CR4_VMXE_MASK | CR4_PAE_MASK)