Messages in this thread | | | Date | Sun, 8 Feb 2015 12:00:23 +0100 | From | "Michael S. Tsirkin" <> | Subject | Re: [PATCH 1/5] virtio: define VIRTIO_PCI_CAP_PCI_CFG in header. |
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On Fri, Feb 06, 2015 at 03:36:52PM +1030, Rusty Russell wrote: > This provides backdoor access to the device MMIOs, and every device should > have one. From the virtio 1.0 spec (CS03): > > 4.1.4.7.1 Device Requirements: PCI configuration access capability > > The device MUST present at least one VIRTIO_PCI_CAP_PCI_CFG capability. > > Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
> --- > include/uapi/linux/virtio_pci.h | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h > index 3b7e4d2765fb..75301468359f 100644 > --- a/include/uapi/linux/virtio_pci.h > +++ b/include/uapi/linux/virtio_pci.h > @@ -109,8 +109,10 @@ > #define VIRTIO_PCI_CAP_NOTIFY_CFG 2 > /* ISR access */ > #define VIRTIO_PCI_CAP_ISR_CFG 3 > -/* Device specific confiuration */ > +/* Device specific configuration */ > #define VIRTIO_PCI_CAP_DEVICE_CFG 4 > +/* PCI configuration access */ > +#define VIRTIO_PCI_CAP_PCI_CFG 5 > > /* This is the PCI capability header: */ > struct virtio_pci_cap { > -- > 2.1.0
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