| vhost was passing a physical address to cpu_physical_memory_set_dirty, |
| which is wrong: we need to translate to ram address first. |
| |
| Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
| |
| Note: this lead to crashes during migration, so the patch |
| is needed on the stable branch too. |
| |
| |
| hw/vhost.c | 4 +++- |
| 1 files changed, 3 insertions(+), 1 deletions(-) |
| |
| diff --git a/hw/vhost.c b/hw/vhost.c |
| index aaa34e4..97a1299 100644 |
| |
| |
| @@ -49,8 +49,10 @@ static void vhost_dev_sync_region(struct vhost_dev *dev, |
| log = __sync_fetch_and_and(from, 0); |
| while ((bit = sizeof(log) > sizeof(int) ? |
| ffsll(log) : ffs(log))) { |
| + ram_addr_t ram_addr; |
| bit -= 1; |
| - cpu_physical_memory_set_dirty(addr + bit * VHOST_LOG_PAGE); |
| + ram_addr = cpu_get_physical_page_desc(addr + bit * VHOST_LOG_PAGE); |
| + cpu_physical_memory_set_dirty(ram_addr); |
| log &= ~(0x1ull << bit); |
| } |
| addr += VHOST_LOG_CHUNK; |
| -- |
| 1.7.3.2.91.g446ac |
| |