[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen stable-4.16] x86/shadow: fix PAE check for top-level table unshadowing
commit 1550835b381a18fc0e972e5d04925e02fab31553 Author: Jan Beulich <jbeulich@xxxxxxxx> AuthorDate: Tue Feb 7 17:05:22 2023 +0100 Commit: Jan Beulich <jbeulich@xxxxxxxx> CommitDate: Tue Feb 7 17:05:22 2023 +0100 x86/shadow: fix PAE check for top-level table unshadowing Clearly within the for_each_vcpu() the vCPU of this loop is meant, not the (loop invariant) one the fault occurred on. Fixes: 3d5e6a3ff383 ("x86 hvm: implement HVMOP_pagetable_dying") Fixes: ef3b0d8d2c39 ("x86/shadow: shadow_table[] needs only one entry for PV-only configs") Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> master commit: f8fdceefbb1193ec81667eb40b83bc525cb71204 master date: 2023-01-20 09:23:42 +0100 --- xen/arch/x86/mm/shadow/multi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/xen/arch/x86/mm/shadow/multi.c b/xen/arch/x86/mm/shadow/multi.c index c07af0bd99..f7acd18a36 100644 --- a/xen/arch/x86/mm/shadow/multi.c +++ b/xen/arch/x86/mm/shadow/multi.c @@ -2665,10 +2665,10 @@ static int sh_page_fault(struct vcpu *v, #if GUEST_PAGING_LEVELS == 3 unsigned int i; - for_each_shadow_table(v, i) + for_each_shadow_table(tmp, i) { mfn_t smfn = pagetable_get_mfn( - v->arch.paging.shadow.shadow_table[i]); + tmp->arch.paging.shadow.shadow_table[i]); if ( mfn_valid(smfn) && (mfn_x(smfn) != 0) ) { -- generated by git-patchbot for /home/xen/git/xen.git#stable-4.16
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