Commit ac6c2bc5 authored Feb 12, 2007 by Avi Kivity Committed by Linus Torvalds Feb 12, 2007

[PATCH] kvm: Fix mmu going crazy of guest sets cr0.wp == 0



The kvm mmu relies on cr0.wp being set even if the guest does not set it.  The
vmx code correctly forces cr0.wp at all times, the svm code does not, so it
can't boot solaris without this patch.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 988ad74f

drivers/kvm/svm.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -723,7 +723,7 @@ static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
		}
		#endif
		vcpu->svm->cr0 = cr0;
		vcpu->svm->vmcb->save.cr0 = cr0 \| CR0_PG_MASK;
		vcpu->svm->vmcb->save.cr0 = cr0 \| CR0_PG_MASK \| CR0_WP_MASK;
		vcpu->cr0 = cr0;
		}

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