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KVM: MMU: fix CR4.SMEP=1, CR0.WP=0 with shadow pages
authorPaolo Bonzini <pbonzini@redhat.com>
Thu, 2 Apr 2015 09:04:05 +0000 (11:04 +0200)
committerPaolo Bonzini <pbonzini@redhat.com>
Mon, 11 May 2015 15:17:44 +0000 (17:17 +0200)
commit898761158be7682082955e3efa4ad24725305fc7
tree4bfe435df7cd6e38996851dbc38bacafc5289ad7tree | snapshot (tar.gz zip)
parent7cbeed9bce7580479bb97457dad220cb3594b875commit | diff
KVM: MMU: fix CR4.SMEP=1, CR0.WP=0 with shadow pages

smep_andnot_wp is initialized in kvm_init_shadow_mmu and shadow pages
should not be reused for different values of it.  Thus, it has to be
added to the mask in kvm_mmu_pte_write.

Reviewed-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/mmu.c diff | blob | blame | history