[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 8 of 9] x86/mm: Fix checks during foreign mapping of paged pages
xen/arch/x86/mm.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) Check that the valid mfn is the one we are mapping, not the mfn of the page table of the foreign domain. Signed-off-by: Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx> diff -r 5286ed662c1e -r 3489152b3a56 xen/arch/x86/mm.c --- a/xen/arch/x86/mm.c +++ b/xen/arch/x86/mm.c @@ -3572,7 +3572,8 @@ int do_mmu_update( rc = -ENOENT; break; } - else if ( p2m_ram_paging_in_start == l1e_p2mt && !mfn_valid(mfn) ) + else if ( p2m_ram_paging_in_start == l1e_p2mt && + !mfn_valid(l1emfn) ) { put_gfn(pg_owner, l1egfn); rc = -ENOENT; _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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