* Eric Blake (ebl...@redhat.com) wrote:
> On 12/10/18 11:31 AM, Dr. David Alan Gilbert (git) wrote:
> > From: "Dr. David Alan Gilbert" <dgilb...@redhat.com>
> >
> > Define a new capability type 'VIRTIO_PCI_CAP_SHARED_MEMORY_CFG'
> > and the data structure 'virtio_pci_shm_cap' to go with it.
> > They allow defining shared memory regions with sizes and offsets
> > of 2^32 and more.
> > Multiple instances of the capability are allowed and distinguished
> > by a device-specific 'id'.
> >
> > Signed-off-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
> > ---
> > hw/virtio/virtio-pci.c | 20 ++++++++++++++++++++
> > include/standard-headers/linux/virtio_pci.h | 9 +++++++++
> > 2 files changed, 29 insertions(+)
> >
>
> > +++ b/include/standard-headers/linux/virtio_pci.h
> > @@ -113,6 +113,8 @@
> > #define VIRTIO_PCI_CAP_DEVICE_CFG 4
> > /* PCI configuration access */
> > #define VIRTIO_PCI_CAP_PCI_CFG 5
> > +/* Additional shared memory capability */
> > +#define VIRTIO_PCI_CAP_SHARED_MEMORY_CFG 8
> > /* This is the PCI capability header: */
> > struct virtio_pci_cap {
> > @@ -163,6 +165,13 @@ struct virtio_pci_cfg_cap {
> > uint8_t pci_cfg_data[4]; /* Data for BAR access. */
> > };
> > +struct virtio_pci_shm_cap {
> > + struct virtio_pci_cap cap;
> > + uint32_t offset_hi; /* Most sig 32 bits of offset */
> > + uint32_t length_hi; /* Most sig 32 bits of length */
> > + uint8_t id; /* To distinguish shm chunks */
>
> TAB damage.
Thanks, fixed.
Dave
> --
> Eric Blake, Principal Software Engineer
> Red Hat, Inc. +1-919-301-3266
> Virtualization: qemu.org | libvirt.org
--
Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
