Use arbitrary_virt_to_machine() to deal with ioremapped pmd updates.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index eb6d83a..c03101e 100644 (file)
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -233,7 +233,7 @@ static void xen_set_pmd_hyper(pmd_t *ptr, pmd_t val)
        xen_mc_batch();
 
        /* ptr may be ioremapped for 64-bit pagetable setup */
-       u.ptr = virt_to_machine(ptr).maddr;
+       u.ptr = arbitrary_virt_to_machine(ptr).maddr;
        u.val = pmd_val_ma(val);
        xen_extend_mmu_update(&u);