diff options
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/trace-events | 2 | ||||
| -rw-r--r-- | hw/virtio/virtio-balloon.c | 7 |
2 files changed, 8 insertions, 1 deletions
diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events index 7b6f55e70e..6926eedd3f 100644 --- a/hw/virtio/trace-events +++ b/hw/virtio/trace-events @@ -15,6 +15,8 @@ virtio_rng_pushed(void *rng, size_t len) "rng %p: %zd bytes pushed" virtio_rng_request(void *rng, size_t size, unsigned quota) "rng %p: %zd bytes requested, %u bytes quota left" # hw/virtio/virtio-balloon.c +# +virtio_balloon_bad_addr(uint64_t gpa) "%"PRIx64 virtio_balloon_handle_output(const char *name, uint64_t gpa) "section name: %s gpa: %"PRIx64 virtio_balloon_get_config(uint32_t num_pages, uint32_t actual) "num_pages: %d actual: %d" virtio_balloon_set_config(uint32_t actual, uint32_t oldactual) "actual: %d oldactual: %d" diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c index 884570a57d..a705e0ec55 100644 --- a/hw/virtio/virtio-balloon.c +++ b/hw/virtio/virtio-balloon.c @@ -228,8 +228,13 @@ static void virtio_balloon_handle_output(VirtIODevice *vdev, VirtQueue *vq) /* FIXME: remove get_system_memory(), but how? */ section = memory_region_find(get_system_memory(), pa, 1); - if (!int128_nz(section.size) || !memory_region_is_ram(section.mr)) + if (!int128_nz(section.size) || + !memory_region_is_ram(section.mr) || + memory_region_is_rom(section.mr) || + memory_region_is_romd(section.mr)) { + trace_virtio_balloon_bad_addr(pa); continue; + } trace_virtio_balloon_handle_output(memory_region_name(section.mr), pa); |