diff options
Diffstat (limited to '0008-x86-shadow-fix-PAE-check-for-top-level-table-unshado.patch')
| -rw-r--r-- | 0008-x86-shadow-fix-PAE-check-for-top-level-table-unshado.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/0008-x86-shadow-fix-PAE-check-for-top-level-table-unshado.patch b/0008-x86-shadow-fix-PAE-check-for-top-level-table-unshado.patch new file mode 100644 index 0000000..ab7862b --- /dev/null +++ b/0008-x86-shadow-fix-PAE-check-for-top-level-table-unshado.patch @@ -0,0 +1,39 @@ +From 1550835b381a18fc0e972e5d04925e02fab31553 Mon Sep 17 00:00:00 2001 +From: Jan Beulich <jbeulich@suse.com> +Date: Tue, 7 Feb 2023 17:05:22 +0100 +Subject: [PATCH 08/61] 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@suse.com> +Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> +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) ) + { +-- +2.40.0 + |