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authorLinus Torvalds <torvalds@linux-foundation.org>2016-08-06 09:20:13 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-06 09:20:13 -0400
commit0803e04011c2e107b9611660301edde94d7010cc (patch)
tree75699c1999c71a93dc8194a9cac338412e36d78d /include/uapi/linux/virtio_config.h
parent80fac0f577a35c437219a2786c1804ab8ca1e998 (diff)
parentb226acab2f6aaa45c2af27279b63f622b23a44bd (diff)
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio/vhost updates from Michael Tsirkin: - new vsock device support in host and guest - platform IOMMU support in host and guest, including compatibility quirks for legacy systems. - misc fixes and cleanups. * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: VSOCK: Use kvfree() vhost: split out vringh Kconfig vhost: detect 32 bit integer wrap around vhost: new device IOTLB API vhost: drop vringh dependency vhost: convert pre sorted vhost memory array to interval tree vhost: introduce vhost memory accessors VSOCK: Add Makefile and Kconfig VSOCK: Introduce vhost_vsock.ko VSOCK: Introduce virtio_transport.ko VSOCK: Introduce virtio_vsock_common.ko VSOCK: defer sock removal to transports VSOCK: transport-specific vsock_transport functions vhost: drop vringh dependency vop: pull in vhost Kconfig virtio: new feature to detect IOMMU device quirk balloon: check the number of available pages in leak balloon vhost: lockless enqueuing vhost: simplify work flushing
Diffstat (limited to 'include/uapi/linux/virtio_config.h')
-rw-r--r--include/uapi/linux/virtio_config.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.h
index 4cb65bbfa654..308e2096291f 100644
--- a/include/uapi/linux/virtio_config.h
+++ b/include/uapi/linux/virtio_config.h
@@ -49,7 +49,7 @@
* transport being used (eg. virtio_ring), the rest are per-device feature
* bits. */
#define VIRTIO_TRANSPORT_F_START 28
-#define VIRTIO_TRANSPORT_F_END 33
+#define VIRTIO_TRANSPORT_F_END 34
#ifndef VIRTIO_CONFIG_NO_LEGACY
/* Do we get callbacks when the ring is completely used, even if we've
@@ -63,4 +63,12 @@
/* v1.0 compliant. */
#define VIRTIO_F_VERSION_1 32
+/*
+ * If clear - device has the IOMMU bypass quirk feature.
+ * If set - use platform tools to detect the IOMMU.
+ *
+ * Note the reverse polarity (compared to most other features),
+ * this is for compatibility with legacy systems.
+ */
+#define VIRTIO_F_IOMMU_PLATFORM 33
#endif /* _UAPI_LINUX_VIRTIO_CONFIG_H */