Re: [Qemu-devel] [PATCH for-2.3] virtio-serial: fix virtio config size

2015-03-25 Thread Cole Robinson
On 03/25/2015 07:41 AM, Michael S. Tsirkin wrote: > commit 9b70c1790acacae54d559d38ca69186a85040bb8 > virtio-serial: switch to standard-headers > > changes virtio_console_config size from 8 to 12 bytes: > it adds an optional 4 byte emerg_wr field. > > As this crosses a power of two boundary,

[Qemu-devel] [PATCH for-2.3] virtio-serial: fix virtio config size

2015-03-25 Thread Michael S. Tsirkin
commit 9b70c1790acacae54d559d38ca69186a85040bb8 virtio-serial: switch to standard-headers changes virtio_console_config size from 8 to 12 bytes: it adds an optional 4 byte emerg_wr field. As this crosses a power of two boundary, this changes the PCI BAR size, which breaks migration compatibil