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