search for: ca3ed78

...m.com>: > Signed-off-by: Greg Kurz <gkurz at linux.vnet.ibm.com> > --- > include/linux/virtio_config.h | 17 +++++++++++------ > 1 file changed, 11 insertions(+), 6 deletions(-) > > diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h > index ca3ed78..bd1a582 100644 > --- a/include/linux/virtio_config.h > +++ b/include/linux/virtio_config.h > @@ -205,35 +205,40 @@ int virtqueue_set_affinity(struct virtqueue *vq, int cpu) > return 0; > } > > +static inline bool virtio_is_little_endian(struct virtio_device *vdev) > +{...

...m.com>: > Signed-off-by: Greg Kurz <gkurz at linux.vnet.ibm.com> > --- > include/linux/virtio_config.h | 17 +++++++++++------ > 1 file changed, 11 insertions(+), 6 deletions(-) > > diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h > index ca3ed78..bd1a582 100644 > --- a/include/linux/virtio_config.h > +++ b/include/linux/virtio_config.h > @@ -205,35 +205,40 @@ int virtqueue_set_affinity(struct virtqueue *vq, int cpu) > return 0; > } > > +static inline bool virtio_is_little_endian(struct virtio_device *vdev) > +{...

Signed-off-by: Greg Kurz <gkurz at linux.vnet.ibm.com> --- include/linux/virtio_config.h | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index ca3ed78..bd1a582 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -205,35 +205,40 @@ int virtqueue_set_affinity(struct virtqueue *vq, int cpu) return 0; } +static inline bool virtio_is_little_endian(struct virtio_device *vdev) +{ + return virtio_has_feature(vdev, VIRTI...

Signed-off-by: Greg Kurz <gkurz at linux.vnet.ibm.com> --- include/linux/virtio_config.h | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index ca3ed78..bd1a582 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -205,35 +205,40 @@ int virtqueue_set_affinity(struct virtqueue *vq, int cpu) return 0; } +static inline bool virtio_is_little_endian(struct virtio_device *vdev) +{ + return virtio_has_feature(vdev, VIRTI...

...nsports that support it. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- include/linux/virtio_config.h | 32 ++++++++++++++++++++++++++++---- 1 file changed, 28 insertions(+), 4 deletions(-) diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index a61cd37..ca3ed78 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -19,6 +19,9 @@ * offset: the offset of the configuration field * buf: the buffer to read the field value from. * len: the length of the buffer + * @generation: config generation counter + * vdev: the virtio_devi...

...nsports that support it. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- include/linux/virtio_config.h | 32 ++++++++++++++++++++++++++++---- 1 file changed, 28 insertions(+), 4 deletions(-) diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index a61cd37..ca3ed78 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -19,6 +19,9 @@ * offset: the offset of the configuration field * buf: the buffer to read the field value from. * len: the length of the buffer + * @generation: config generation counter + * vdev: the virtio_devi...

...and only on boot ATM, so performance isn't affected, but let's clean it up. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- include/linux/virtio_config.h | 1 - 1 file changed, 1 deletion(-) diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index ca3ed78..ed1e0d5 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -374,7 +374,6 @@ static inline u64 virtio_cread64(struct virtio_device *vdev, unsigned int offset) { u64 ret; - vdev->config->get(vdev, offset, &ret, sizeof(ret)); __virtio_cread_many(vde...

...and only on boot ATM, so performance isn't affected, but let's clean it up. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- include/linux/virtio_config.h | 1 - 1 file changed, 1 deletion(-) diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index ca3ed78..ed1e0d5 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -374,7 +374,6 @@ static inline u64 virtio_cread64(struct virtio_device *vdev, unsigned int offset) { u64 ret; - vdev->config->get(vdev, offset, &ret, sizeof(ret)); __virtio_cread_many(vde...

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. It is compatible with modern virtio and can be fully compiled out through kernel config. FWIW, I could flawlessly kexec/reboot guests from ppc64 to ppc64le and back. I could also migrate from a ppc64 to a ppc64le host and back. No regressions on x86 as expected. My experimental QEMU tree

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. It is compatible with modern virtio and can be fully compiled out through kernel config. FWIW, I could flawlessly kexec/reboot guests from ppc64 to ppc64le and back. I could also migrate from a ppc64 to a ppc64le host and back. No regressions on x86 as expected. My experimental QEMU tree

Fixes a couple of minor compliance issues in new virtio 1.0 code. Plus, adds a couple of minor cleanups - not bugfixes, but seem safe enough for 3.19. Michael S. Tsirkin (6): virtio: set VIRTIO_CONFIG_S_FEATURES_OK on restore virtio_config: fix virtio_cread_bytes virtio_pci_common.h: drop VIRTIO_PCI_NO_LEGACY virtio_pci: move probe to common file virtio_pci: add VIRTIO_PCI_NO_LEGACY

Fixes a couple of minor compliance issues in new virtio 1.0 code. Plus, adds a couple of minor cleanups - not bugfixes, but seem safe enough for 3.19. Michael S. Tsirkin (6): virtio: set VIRTIO_CONFIG_S_FEATURES_OK on restore virtio_config: fix virtio_cread_bytes virtio_pci_common.h: drop VIRTIO_PCI_NO_LEGACY virtio_pci: move probe to common file virtio_pci: add VIRTIO_PCI_NO_LEGACY

Only cosmetic and documentation changes since v5. --- Greg Kurz (8): virtio: introduce virtio_is_little_endian() helper tun: add tun_is_little_endian() helper macvtap: introduce macvtap_is_little_endian() helper vringh: introduce vringh_is_little_endian() helper vhost: introduce vhost_is_little_endian() helper virtio: add explicit big-endian support to memory

Only cosmetic and documentation changes since v5. --- Greg Kurz (8): virtio: introduce virtio_is_little_endian() helper tun: add tun_is_little_endian() helper macvtap: introduce macvtap_is_little_endian() helper vringh: introduce vringh_is_little_endian() helper vhost: introduce vhost_is_little_endian() helper virtio: add explicit big-endian support to memory

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. It is a complete rework of my initial post. Patches 1 to 5 are preliminary work: we move the endianness check out of all memory accessors to separate functions. Patch 6 changes the semantics of the accessors so that they have explicit big endian support. Patch 7 brings the cross-endian

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. It is a complete rework of my initial post. Patches 1 to 5 are preliminary work: we move the endianness check out of all memory accessors to separate functions. Patch 6 changes the semantics of the accessors so that they have explicit big endian support. Patch 7 brings the cross-endian

Hi all: This series try to share MSIX irq for each tx/rx queue pair. This is done through: - introducing virtio pci channel which are group of virtqueues that sharing a single MSIX irq (Patch 1) - expose channel setting to virtio core api (Patch 2) - try to use channel setting in virtio-net (Patch 3) For the transport that does not support channel, channel paramters were simply ignored. For

Hi all: This series try to share MSIX irq for each tx/rx queue pair. This is done through: - introducing virtio pci channel which are group of virtqueues that sharing a single MSIX irq (Patch 1) - expose channel setting to virtio core api (Patch 2) - try to use channel setting in virtio-net (Patch 3) For the transport that does not support channel, channel paramters were simply ignored. For

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. Patches 1-6 remain the same as the previous post. Patch 7 was heavily changed according to MST's comments. --- Greg Kurz (7): virtio: introduce virtio_is_little_endian() helper tun: add tun_is_little_endian() helper macvtap: introduce macvtap_is_little_endian()

Hi, This patchset allows vhost to be used with legacy virtio when guest and host have a different endianness. Patches 1-6 remain the same as the previous post. Patch 7 was heavily changed according to MST's comments. --- Greg Kurz (7): virtio: introduce virtio_is_little_endian() helper tun: add tun_is_little_endian() helper macvtap: introduce macvtap_is_little_endian()