From: Benjamin Herrenschmidt <b...@kernel.crashing.org>
The kvm_get_dirty_pages_log_range() function uses two address
variables to step through the monitored memory region to update the
dirty log. However, these variables have type unsigned long, which
can overflow if running a 64-bit guest with a 32-bit qemu binary.
This patch changes these to target_phys_addr_t which will have the
correct size.
Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
kvm-all.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/kvm-all.c b/kvm-all.c
index 3174f42..363c697 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -344,7 +344,8 @@ static int
kvm_get_dirty_pages_log_range(MemoryRegionSection *section,
unsigned long *bitmap)
{
unsigned int i, j;
- unsigned long page_number, addr, addr1, c;
+ unsigned long page_number, c;
+ target_phys_addr_t addr, addr1;
unsigned int len = ((section->size / TARGET_PAGE_SIZE) + HOST_LONG_BITS -
1) / HOST_LONG_BITS;
/*
--
1.7.7.3
