path: root/exec.c
diff options
authorAvi Kivity <avi@redhat.com>2012-01-01 18:24:24 +0200
committerAvi Kivity <avi@redhat.com>2012-01-04 13:34:49 +0200
commit2774c6d0ae20d32d75f77e7ed063ddbb854ca4c5 (patch)
tree1c27a99dec9f809af6530c3014c81b3c057e9caf /exec.c
parent26a83ad0e793465b74a8b06a65f2f6fdc5615413 (diff)
Fix wrong region_offset when overlaying a page with another
cpu_register_physical_memory_log() does not update region_offset if a page was previously registered for the same address. This could cause mmio accesses going to the wrong place, by using the old region_offset. Signed-off-by: Avi Kivity <avi@redhat.com> Acked-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'exec.c')
1 files changed, 1 insertions, 0 deletions
diff --git a/exec.c b/exec.c
index 8a3f6213a..c36683508 100644
--- a/exec.c
+++ b/exec.c
@@ -2542,6 +2542,7 @@ void cpu_register_physical_memory_log(target_phys_addr_t start_addr,
p->region_offset = 0;
} else {
p->phys_offset = phys_offset;
+ p->region_offset = region_offset;
if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM ||
(phys_offset & IO_MEM_ROMD))
phys_offset += TARGET_PAGE_SIZE;