From 73b12747dcd24fa182b9ff6e2ed0dc37193acafa Mon Sep 17 00:00:00 2001 From: Tim Deegan Date: Wed, 7 Feb 2007 12:58:07 +0000 Subject: [PATCH] [XEN] Remove bogus assertion in shadow emulation path Signed-off-by: Tim Deegan --- xen/arch/x86/mm/shadow/multi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/xen/arch/x86/mm/shadow/multi.c b/xen/arch/x86/mm/shadow/multi.c index 8b8b8585a7..9e0d0e1fbf 100644 --- a/xen/arch/x86/mm/shadow/multi.c +++ b/xen/arch/x86/mm/shadow/multi.c @@ -3875,11 +3875,9 @@ static inline void * emulate_map_dest(struct vcpu *v, goto page_fault; } - /* Attempted a write to a bad gfn? This should never happen: - * after all, we're here because this write is to a page table. */ - BUG_ON(!mfn_valid(mfn)); + if ( !mfn_valid(mfn) ) + return NULL; - ASSERT(sh_mfn_is_a_page_table(mfn)); *mfnp = mfn; return sh_map_domain_page(mfn) + (vaddr & ~PAGE_MASK); -- 2.30.2