Displaying 3 results from an estimated 3 matches for "cpu_to_virtio_addr".
2015 Dec 07
0
[PATCH RFC 3/3] xen/virtio_ring: introduce cpu_to_virtio_addr and virtio_addr_to_cpu
When running on Xen inside as virtual machine (nested virt scenario),
addresses need to be translated from phys to machine to get the actual
guest pseudo-physical address.
Introduce a new pair of functions, cpu_to_virtio_addr and
virtio_addr_to_cpu, which call the appriopriate __virtio64_to_cpu and
__cpu_to_virtio64 functions after doing the phys_to_bus and bus_to_phys
translations for Xen.
No changes in behavior for the non-Xen case.
Signed-off-by: Stefano Stabellini <stefano.stabellini at eu.citrix.com>
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2015 Dec 07
6
[PATCH RFC 0/3] Xen on Virtio
...paths. You are welcome to suggest improvements or alternative
implementations.
Thanks,
Stefano
Stefano Stabellini (3):
xen: export xen_phys_to_bus, xen_bus_to_phys and xen_virt_to_bus
xen/virtio: allocate a contiguous region to be use as virtio queue
xen/virtio_ring: introduce cpu_to_virtio_addr and virtio_addr_to_cpu
drivers/virtio/virtio_pci_legacy.c | 19 +++++++++++++++----
drivers/virtio/virtio_ring.c | 9 +++++----
drivers/xen/swiotlb-xen.c | 31 -------------------------------
include/linux/virtio_config.h | 14 ++++++++++++++
include/xen/swiotlb-xen.h...
2015 Dec 07
6
[PATCH RFC 0/3] Xen on Virtio
...paths. You are welcome to suggest improvements or alternative
implementations.
Thanks,
Stefano
Stefano Stabellini (3):
xen: export xen_phys_to_bus, xen_bus_to_phys and xen_virt_to_bus
xen/virtio: allocate a contiguous region to be use as virtio queue
xen/virtio_ring: introduce cpu_to_virtio_addr and virtio_addr_to_cpu
drivers/virtio/virtio_pci_legacy.c | 19 +++++++++++++++----
drivers/virtio/virtio_ring.c | 9 +++++----
drivers/xen/swiotlb-xen.c | 31 -------------------------------
include/linux/virtio_config.h | 14 ++++++++++++++
include/xen/swiotlb-xen.h...