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[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>
This commit is contained in:
Avi Kivity 2007-02-12 00:54:37 -08:00 committed by Linus Torvalds
parent 988ad74ff6
commit ac6c2bc592
1 changed files with 1 additions and 1 deletions
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2
drivers/kvm/svm.c
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@ -723,7 +723,7 @@ static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
} }
#endif #endif
vcpu->svm->cr0 = cr0; 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; vcpu->cr0 = cr0;
} }