search for: __cpu_to_virtio32

...e_event(struct work_struct *work) struct virtio_scsi *vscsi = event_node->vscsi; struct virtio_scsi_event *event = &event_node->event; - if (event->event & VIRTIO_SCSI_T_EVENTS_MISSED) { - event->event &= ~VIRTIO_SCSI_T_EVENTS_MISSED; + if (event->event & + __cpu_to_virtio32(vscsi->vdev, VIRTIO_SCSI_T_EVENTS_MISSED)) { + event->event &= ~__cpu_to_virtio32(vscsi->vdev, + VIRTIO_SCSI_T_EVENTS_MISSED); scsi_scan_host(virtio_scsi_host(vscsi->vdev)); } - switch (event->event) { + switch (__virtio32_to_cpu(vscsi->vdev, event->event))...

...e_event(struct work_struct *work) struct virtio_scsi *vscsi = event_node->vscsi; struct virtio_scsi_event *event = &event_node->event; - if (event->event & VIRTIO_SCSI_T_EVENTS_MISSED) { - event->event &= ~VIRTIO_SCSI_T_EVENTS_MISSED; + if (event->event & + __cpu_to_virtio32(vscsi->vdev, VIRTIO_SCSI_T_EVENTS_MISSED)) { + event->event &= ~__cpu_to_virtio32(vscsi->vdev, + VIRTIO_SCSI_T_EVENTS_MISSED); scsi_scan_host(virtio_scsi_host(vscsi->vdev)); } - switch (event->event) { + switch (__virtio32_to_cpu(vscsi->vdev, event->event))...

...e_event(struct work_struct *work) struct virtio_scsi *vscsi = event_node->vscsi; struct virtio_scsi_event *event = &event_node->event; - if (event->event & VIRTIO_SCSI_T_EVENTS_MISSED) { - event->event &= ~VIRTIO_SCSI_T_EVENTS_MISSED; + if (event->event & + __cpu_to_virtio32(vscsi->vdev, VIRTIO_SCSI_T_EVENTS_MISSED)) { + event->event &= ~__cpu_to_virtio32(vscsi->vdev, + VIRTIO_SCSI_T_EVENTS_MISSED); scsi_scan_host(virtio_scsi_host(vscsi->vdev)); } - switch (event->event) { + switch (__virtio32_to_cpu(vscsi->vdev, event->event))...

...e_event(struct work_struct *work) struct virtio_scsi *vscsi = event_node->vscsi; struct virtio_scsi_event *event = &event_node->event; - if (event->event & VIRTIO_SCSI_T_EVENTS_MISSED) { - event->event &= ~VIRTIO_SCSI_T_EVENTS_MISSED; + if (event->event & + __cpu_to_virtio32(vscsi->vdev, VIRTIO_SCSI_T_EVENTS_MISSED)) { + event->event &= ~__cpu_to_virtio32(vscsi->vdev, + VIRTIO_SCSI_T_EVENTS_MISSED); scsi_scan_host(virtio_scsi_host(vscsi->vdev)); } - switch (event->event) { + switch (__virtio32_to_cpu(vscsi->vdev, event->event))...

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

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

...9,7 +33,7 @@ static inline u32 __virtio32_to_cpu(bool little_endian, __virtio32 val) > if (little_endian) > return le32_to_cpu((__force __le32)val); > else > - return (__force u32)val; > + return be32_to_cpu((__force __be32)val); > } > > static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val) > @@ -37,7 +41,7 @@ static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val) > if (little_endian) > return (__force __virtio32)cpu_to_le32(val); > else > - return (__force __virtio32)val; > + return (__force __virtio32)cpu_to_be...

...9,7 +33,7 @@ static inline u32 __virtio32_to_cpu(bool little_endian, __virtio32 val) > if (little_endian) > return le32_to_cpu((__force __le32)val); > else > - return (__force u32)val; > + return be32_to_cpu((__force __be32)val); > } > > static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val) > @@ -37,7 +41,7 @@ static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val) > if (little_endian) > return (__force __virtio32)cpu_to_le32(val); > else > - return (__force __virtio32)val; > + return (__force __virtio32)cpu_to_be...

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()

...9,7 +33,7 @@ static inline u32 __virtio32_to_cpu(bool little_endian, __virtio32 val) > if (little_endian) > return le32_to_cpu((__force __le32)val); > else > - return (__force u32)val; > + return be32_to_cpu((__force __be32)val); > } > > static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val) > @@ -37,7 +41,7 @@ static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val) > if (little_endian) > return (__force __virtio32)cpu_to_le32(val); > else > - return (__force __virtio32)val; > + return (__force __virtio32)cpu_to_be...

...9,7 +33,7 @@ static inline u32 __virtio32_to_cpu(bool little_endian, __virtio32 val) > if (little_endian) > return le32_to_cpu((__force __le32)val); > else > - return (__force u32)val; > + return be32_to_cpu((__force __be32)val); > } > > static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val) > @@ -37,7 +41,7 @@ static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val) > if (little_endian) > return (__force __virtio32)cpu_to_le32(val); > else > - return (__force __virtio32)val; > + return (__force __virtio32)cpu_to_be...

...rtio32_to_cpu(struct virtio_device *vdev, __virtio32 val) { - return __virtio32_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __virtio32_to_cpu(virtio_is_little_endian(vdev), val); } static inline __virtio32 cpu_to_virtio32(struct virtio_device *vdev, u32 val) { - return __cpu_to_virtio32(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __cpu_to_virtio32(virtio_is_little_endian(vdev), val); } static inline u64 virtio64_to_cpu(struct virtio_device *vdev, __virtio64 val) { - return __virtio64_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __virtio...

...; } static inline u32 vringh32_to_cpu(const struct vringh *vrh, __virtio32 val) { - return __virtio32_to_cpu(vrh->little_endian, val); + return __virtio32_to_cpu(vringh_is_little_endian(vrh), val); } static inline __virtio32 cpu_to_vringh32(const struct vringh *vrh, u32 val) { - return __cpu_to_virtio32(vrh->little_endian, val); + return __cpu_to_virtio32(vringh_is_little_endian(vrh), val); } static inline u64 vringh64_to_cpu(const struct vringh *vrh, __virtio64 val) { - return __virtio64_to_cpu(vrh->little_endian, val); + return __virtio64_to_cpu(vringh_is_little_endian(vrh), val); }...

...e u32 vhost32_to_cpu(struct vhost_virtqueue *vq, __virtio32 val) { - return __virtio32_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __virtio32_to_cpu(vhost_is_little_endian(vq), val); } static inline __virtio32 cpu_to_vhost32(struct vhost_virtqueue *vq, u32 val) { - return __cpu_to_virtio32(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __cpu_to_virtio32(vhost_is_little_endian(vq), val); } static inline u64 vhost64_to_cpu(struct vhost_virtqueue *vq, __virtio64 val) { - return __virtio64_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __virtio64_to_cpu(...

...rtio32_to_cpu(struct virtio_device *vdev, __virtio32 val) { - return __virtio32_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __virtio32_to_cpu(virtio_is_little_endian(vdev), val); } static inline __virtio32 cpu_to_virtio32(struct virtio_device *vdev, u32 val) { - return __cpu_to_virtio32(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __cpu_to_virtio32(virtio_is_little_endian(vdev), val); } static inline u64 virtio64_to_cpu(struct virtio_device *vdev, __virtio64 val) { - return __virtio64_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __virtio...

...; } static inline u32 vringh32_to_cpu(const struct vringh *vrh, __virtio32 val) { - return __virtio32_to_cpu(vrh->little_endian, val); + return __virtio32_to_cpu(vringh_is_little_endian(vrh), val); } static inline __virtio32 cpu_to_vringh32(const struct vringh *vrh, u32 val) { - return __cpu_to_virtio32(vrh->little_endian, val); + return __cpu_to_virtio32(vringh_is_little_endian(vrh), val); } static inline u64 vringh64_to_cpu(const struct vringh *vrh, __virtio64 val) { - return __virtio64_to_cpu(vrh->little_endian, val); + return __virtio64_to_cpu(vringh_is_little_endian(vrh), val); }...

...e u32 vhost32_to_cpu(struct vhost_virtqueue *vq, __virtio32 val) { - return __virtio32_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __virtio32_to_cpu(vhost_is_little_endian(vq), val); } static inline __virtio32 cpu_to_vhost32(struct vhost_virtqueue *vq, u32 val) { - return __cpu_to_virtio32(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __cpu_to_virtio32(vhost_is_little_endian(vq), val); } static inline u64 vhost64_to_cpu(struct vhost_virtqueue *vq, __virtio64 val) { - return __virtio64_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __virtio64_to_cpu(...