commit ca1c9e154b3b077aadf459a8aaf90196c0726452
author aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> Mon Aug 18 18:00:31 2008 +0000
committer aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> Mon Aug 18 18:00:31 2008 +0000
tree e9231f19cc5800e3fa3773064466bba5f1aabe5f
parent 681f8c29aaa375b2b46ff81844b9bfa594538f43

i386: Catch all non-present ptes in cpu_get_phys_page_debug (Jan Kiszka)

It helps debugging guests when yet unmapped pages are correctly reported
as, well, unmapped.

Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5025 c046a42c-6fe2-441c-8c8c-71466251a162

target-i386/helper.c

diff --git a/target-i386/helper.c b/target-i386/helper.c
index 7962d6b..2b59f23 100644
--- a/target-i386/helper.c
+++ b/target-i386/helper.c
@@ -1192,6 +1192,8 @@
             page_size = 4096;
             pte = ldq_phys(pte_addr);
         }
+        if (!(pte & PG_PRESENT_MASK))
+            return -1;
     } else {
         uint32_t pde;