Displaying 20 results from an estimated 28 matches for "virtio_tswap32".
2014 Oct 07
0
[PATCH RFC 07/11] dataplane: allow virtio-1 devices
...esc(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem,
struct vring_desc *desc)
{
unsigned *num;
struct iovec *iov;
hwaddr *addr;
MemoryRegion *mr;
+ int is_write = virtio_tswap16(vdev, desc->flags) & VRING_DESC_F_WRITE;
+ uint32_t len = virtio_tswap32(vdev, desc->len);
+ uint64_t desc_addr = virtio_tswap64(vdev, desc->addr);
- if (desc->flags & VRING_DESC_F_WRITE) {
+ if (is_write) {
num = &elem->in_num;
iov = &elem->in_sg[*num];
addr = &elem->in_addr[*num];
@@ -186,44 +191,...
2014 Oct 07
0
[PATCH RFC 07/11] dataplane: allow virtio-1 devices
...esc(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem,
struct vring_desc *desc)
{
unsigned *num;
struct iovec *iov;
hwaddr *addr;
MemoryRegion *mr;
+ int is_write = virtio_tswap16(vdev, desc->flags) & VRING_DESC_F_WRITE;
+ uint32_t len = virtio_tswap32(vdev, desc->len);
+ uint64_t desc_addr = virtio_tswap64(vdev, desc->addr);
- if (desc->flags & VRING_DESC_F_WRITE) {
+ if (is_write) {
num = &elem->in_num;
iov = &elem->in_sg[*num];
addr = &elem->in_addr[*num];
@@ -186,44 +191,...
2014 Nov 25
0
[PATCH RFC v2 07/12] dataplane: allow virtio-1 devices
...rtQueueElement *elem,
> struct vring_desc *desc)
> {
> unsigned *num;
> struct iovec *iov;
> hwaddr *addr;
> MemoryRegion *mr;
> + int is_write = virtio_tswap16(vdev, desc->flags) & VRING_DESC_F_WRITE;
> + uint32_t len = virtio_tswap32(vdev, desc->len);
> + uint64_t desc_addr = virtio_tswap64(vdev, desc->addr);
>
> - if (desc->flags & VRING_DESC_F_WRITE) {
> + if (is_write) {
> num = &elem->in_num;
> iov = &elem->in_sg[*num];
> addr = &elem-&...
2014 Dec 11
0
[PATCH RFC v6 08/20] dataplane: allow virtio-1 devices
...esc(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem,
struct vring_desc *desc)
{
unsigned *num;
struct iovec *iov;
hwaddr *addr;
MemoryRegion *mr;
+ int is_write = virtio_tswap16(vdev, desc->flags) & VRING_DESC_F_WRITE;
+ uint32_t len = virtio_tswap32(vdev, desc->len);
+ uint64_t desc_addr = virtio_tswap64(vdev, desc->addr);
- if (desc->flags & VRING_DESC_F_WRITE) {
+ if (is_write) {
num = &elem->in_num;
iov = &elem->in_sg[*num];
addr = &elem->in_addr[*num];
@@ -186,44 +192,...
2014 Dec 11
0
[PATCH RFC v6 08/20] dataplane: allow virtio-1 devices
...esc(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem,
struct vring_desc *desc)
{
unsigned *num;
struct iovec *iov;
hwaddr *addr;
MemoryRegion *mr;
+ int is_write = virtio_tswap16(vdev, desc->flags) & VRING_DESC_F_WRITE;
+ uint32_t len = virtio_tswap32(vdev, desc->len);
+ uint64_t desc_addr = virtio_tswap64(vdev, desc->addr);
- if (desc->flags & VRING_DESC_F_WRITE) {
+ if (is_write) {
num = &elem->in_num;
iov = &elem->in_sg[*num];
addr = &elem->in_addr[*num];
@@ -186,44 +192,...
2014 Nov 26
0
[PATCH RFC v3 07/12] dataplane: allow virtio-1 devices
...esc(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem,
struct vring_desc *desc)
{
unsigned *num;
struct iovec *iov;
hwaddr *addr;
MemoryRegion *mr;
+ int is_write = virtio_tswap16(vdev, desc->flags) & VRING_DESC_F_WRITE;
+ uint32_t len = virtio_tswap32(vdev, desc->len);
+ uint64_t desc_addr = virtio_tswap64(vdev, desc->addr);
- if (desc->flags & VRING_DESC_F_WRITE) {
+ if (is_write) {
num = &elem->in_num;
iov = &elem->in_sg[*num];
addr = &elem->in_addr[*num];
@@ -186,44 +192,...
2014 Nov 26
0
[PATCH RFC v3 07/12] dataplane: allow virtio-1 devices
...esc(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem,
struct vring_desc *desc)
{
unsigned *num;
struct iovec *iov;
hwaddr *addr;
MemoryRegion *mr;
+ int is_write = virtio_tswap16(vdev, desc->flags) & VRING_DESC_F_WRITE;
+ uint32_t len = virtio_tswap32(vdev, desc->len);
+ uint64_t desc_addr = virtio_tswap64(vdev, desc->addr);
- if (desc->flags & VRING_DESC_F_WRITE) {
+ if (is_write) {
num = &elem->in_num;
iov = &elem->in_sg[*num];
addr = &elem->in_addr[*num];
@@ -186,44 +192,...
2014 Nov 25
1
[PATCH RFC v2 07/12] dataplane: allow virtio-1 devices
...esc(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem,
struct vring_desc *desc)
{
unsigned *num;
struct iovec *iov;
hwaddr *addr;
MemoryRegion *mr;
+ int is_write = virtio_tswap16(vdev, desc->flags) & VRING_DESC_F_WRITE;
+ uint32_t len = virtio_tswap32(vdev, desc->len);
+ uint64_t desc_addr = virtio_tswap64(vdev, desc->addr);
- if (desc->flags & VRING_DESC_F_WRITE) {
+ if (is_write) {
num = &elem->in_num;
iov = &elem->in_sg[*num];
addr = &elem->in_addr[*num];
@@ -186,44 +191,...
2014 Nov 25
1
[PATCH RFC v2 07/12] dataplane: allow virtio-1 devices
...esc(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem,
struct vring_desc *desc)
{
unsigned *num;
struct iovec *iov;
hwaddr *addr;
MemoryRegion *mr;
+ int is_write = virtio_tswap16(vdev, desc->flags) & VRING_DESC_F_WRITE;
+ uint32_t len = virtio_tswap32(vdev, desc->len);
+ uint64_t desc_addr = virtio_tswap64(vdev, desc->addr);
- if (desc->flags & VRING_DESC_F_WRITE) {
+ if (is_write) {
num = &elem->in_num;
iov = &elem->in_sg[*num];
addr = &elem->in_addr[*num];
@@ -186,44 +191,...
2014 Oct 28
1
[Qemu-devel] [PATCH RFC 07/11] dataplane: allow virtio-1 devices
...rtQueueElement *elem,
> struct vring_desc *desc)
> {
> unsigned *num;
> struct iovec *iov;
> hwaddr *addr;
> MemoryRegion *mr;
> + int is_write = virtio_tswap16(vdev, desc->flags) & VRING_DESC_F_WRITE;
> + uint32_t len = virtio_tswap32(vdev, desc->len);
> + uint64_t desc_addr = virtio_tswap64(vdev, desc->addr);
>
> - if (desc->flags & VRING_DESC_F_WRITE) {
> + if (is_write) {
> num = &elem->in_num;
> iov = &elem->in_sg[*num];
> addr = &elem-&...
2014 Oct 28
1
[Qemu-devel] [PATCH RFC 07/11] dataplane: allow virtio-1 devices
...rtQueueElement *elem,
> struct vring_desc *desc)
> {
> unsigned *num;
> struct iovec *iov;
> hwaddr *addr;
> MemoryRegion *mr;
> + int is_write = virtio_tswap16(vdev, desc->flags) & VRING_DESC_F_WRITE;
> + uint32_t len = virtio_tswap32(vdev, desc->len);
> + uint64_t desc_addr = virtio_tswap64(vdev, desc->addr);
>
> - if (desc->flags & VRING_DESC_F_WRITE) {
> + if (is_write) {
> num = &elem->in_num;
> iov = &elem->in_sg[*num];
> addr = &elem-&...
2020 Jul 14
2
[PATCH] virtio_balloon: clear modern features under legacy
...t; This wasn't even the one I was talking about, but now that you point
> it out this is definately bug. The command ID I was talking about was
> the one being passed via the descriptor ring. That one I believe is
> native on both sides.
Well qemu swaps it for modern devices:
virtio_tswap32s(vdev, &id);
guest swaps it too:
vb->cmd_id_active = cpu_to_virtio32(vb->vdev,
virtio_balloon_cmd_id_received(vb));
sg_init_one(&sg, &vb->cmd_id_active, sizeof(vb->cmd_id_active));
err = virtqueue_add_outbuf(vq...
2020 Jul 14
2
[PATCH] virtio_balloon: clear modern features under legacy
...t; This wasn't even the one I was talking about, but now that you point
> it out this is definately bug. The command ID I was talking about was
> the one being passed via the descriptor ring. That one I believe is
> native on both sides.
Well qemu swaps it for modern devices:
virtio_tswap32s(vdev, &id);
guest swaps it too:
vb->cmd_id_active = cpu_to_virtio32(vb->vdev,
virtio_balloon_cmd_id_received(vb));
sg_init_one(&sg, &vb->cmd_id_active, sizeof(vb->cmd_id_active));
err = virtqueue_add_outbuf(vq...
2020 Jul 14
0
[PATCH] virtio_balloon: clear modern features under legacy
...was talking about, but now that you point
> > it out this is definately bug. The command ID I was talking about was
> > the one being passed via the descriptor ring. That one I believe is
> > native on both sides.
>
> Well qemu swaps it for modern devices:
>
> virtio_tswap32s(vdev, &id);
>
> guest swaps it too:
> vb->cmd_id_active = cpu_to_virtio32(vb->vdev,
> virtio_balloon_cmd_id_received(vb));
> sg_init_one(&sg, &vb->cmd_id_active, sizeof(vb->cmd_id_active));
>...
2014 Nov 25
15
[PATCH RFC v2 00/12] qemu: towards virtio-1 host support
Hi,
here's the next version of my virtio-1 qemu patchset. Using virtio-1
virtio-blk and virtio-net devices with a guest kernel built from
<1416829787-14252-1-git-send-email-mst at redhat.com> still seems to
work for the virtio-ccw transport.
Changes from v1:
- rebased against current master
- don't advertise VERSION_1 for all devices, make devices switch it on
individually
2014 Nov 25
15
[PATCH RFC v2 00/12] qemu: towards virtio-1 host support
Hi,
here's the next version of my virtio-1 qemu patchset. Using virtio-1
virtio-blk and virtio-net devices with a guest kernel built from
<1416829787-14252-1-git-send-email-mst at redhat.com> still seems to
work for the virtio-ccw transport.
Changes from v1:
- rebased against current master
- don't advertise VERSION_1 for all devices, make devices switch it on
individually
2014 Nov 26
15
[PATCH RFC v3 00/12] qemu: towards virtio-1 host support
Next version of virtio-1 patches for qemu.
Only change from v2 is splitting out the vring accessors into a
separate header file - should hopefully fix the build issues.
Cornelia Huck (9):
virtio: cull virtio_bus_set_vdev_features
virtio: support more feature bits
s390x/virtio-ccw: fix check for WRITE_FEAT
virtio: introduce legacy virtio devices
virtio: allow virtio-1 queue layout
2014 Nov 26
15
[PATCH RFC v3 00/12] qemu: towards virtio-1 host support
Next version of virtio-1 patches for qemu.
Only change from v2 is splitting out the vring accessors into a
separate header file - should hopefully fix the build issues.
Cornelia Huck (9):
virtio: cull virtio_bus_set_vdev_features
virtio: support more feature bits
s390x/virtio-ccw: fix check for WRITE_FEAT
virtio: introduce legacy virtio devices
virtio: allow virtio-1 queue layout
2014 Oct 07
18
[PATCH RFC 00/11] qemu: towards virtio-1 host support
This patchset aims to get us some way to implement virtio-1 compliant
and transitional devices in qemu. Branch available at
git://github.com/cohuck/qemu virtio-1
I've mainly focused on:
- endianness handling
- extended feature bits
- virtio-ccw new/changed commands
Thanks go to Thomas for some preliminary work in this area.
I've been able to start guests both with and without the
2014 Oct 07
18
[PATCH RFC 00/11] qemu: towards virtio-1 host support
This patchset aims to get us some way to implement virtio-1 compliant
and transitional devices in qemu. Branch available at
git://github.com/cohuck/qemu virtio-1
I've mainly focused on:
- endianness handling
- extended feature bits
- virtio-ccw new/changed commands
Thanks go to Thomas for some preliminary work in this area.
I've been able to start guests both with and without the