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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

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Pull virtio/vhost fixes from Michael Tsirkin:

 - Fixes in the iommu and balloon devices.

 - Disable the meta-data optimization for now - I hope we can get it
   fixed shortly, but there's no point in making users suffer crashes
   while we are working on that.

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost: disable metadata prefetch optimization
  iommu/virtio: Update to most recent specification
  balloon: fix up comments
  mm/balloon_compaction: avoid duplicate page removal
This commit is contained in:
Linus Torvalds
2019-07-29 11:34:12 -07:00
parent 45aee68e19 73f628ec9e
commit 2a11c76e53
4 changed files with 89 additions and 54 deletions
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32
include/uapi/linux/virtio_iommu.h
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@@ -1,8 +1,8 @@
/* SPDX-License-Identifier: BSD-3-Clause */
/*
* Virtio-iommu definition v0.9
* Virtio-iommu definition v0.12
*
* Copyright (C) 2018 Arm Ltd.
* Copyright (C) 2019 Arm Ltd.
*/
#ifndef _UAPI_LINUX_VIRTIO_IOMMU_H
#define _UAPI_LINUX_VIRTIO_IOMMU_H
@@ -11,26 +11,31 @@
/* Feature bits */
#define VIRTIO_IOMMU_F_INPUT_RANGE 0
#define VIRTIO_IOMMU_F_DOMAIN_BITS 1
#define VIRTIO_IOMMU_F_DOMAIN_RANGE 1
#define VIRTIO_IOMMU_F_MAP_UNMAP 2
#define VIRTIO_IOMMU_F_BYPASS 3
#define VIRTIO_IOMMU_F_PROBE 4
#define VIRTIO_IOMMU_F_MMIO 5
struct virtio_iommu_range {
__u64 start;
__u64 end;
struct virtio_iommu_range_64 {
__le64 start;
__le64 end;
};
struct virtio_iommu_range_32 {
__le32 start;
__le32 end;
};
struct virtio_iommu_config {
/* Supported page sizes */
__u64 page_size_mask;
__le64 page_size_mask;
/* Supported IOVA range */
struct virtio_iommu_range input_range;
struct virtio_iommu_range_64 input_range;
/* Max domain ID size */
__u8 domain_bits;
__u8 padding[3];
struct virtio_iommu_range_32 domain_range;
/* Probe buffer size */
__u32 probe_size;
__le32 probe_size;
};
/* Request types */
@@ -49,6 +54,7 @@ struct virtio_iommu_config {
#define VIRTIO_IOMMU_S_RANGE 0x05
#define VIRTIO_IOMMU_S_NOENT 0x06
#define VIRTIO_IOMMU_S_FAULT 0x07
#define VIRTIO_IOMMU_S_NOMEM 0x08
struct virtio_iommu_req_head {
__u8 type;
@@ -78,12 +84,10 @@ struct virtio_iommu_req_detach {
#define VIRTIO_IOMMU_MAP_F_READ (1 << 0)
#define VIRTIO_IOMMU_MAP_F_WRITE (1 << 1)
#define VIRTIO_IOMMU_MAP_F_EXEC (1 << 2)
#define VIRTIO_IOMMU_MAP_F_MMIO (1 << 3)
#define VIRTIO_IOMMU_MAP_F_MMIO (1 << 2)
#define VIRTIO_IOMMU_MAP_F_MASK (VIRTIO_IOMMU_MAP_F_READ | \
VIRTIO_IOMMU_MAP_F_WRITE | \
VIRTIO_IOMMU_MAP_F_EXEC | \
VIRTIO_IOMMU_MAP_F_MMIO)
struct virtio_iommu_req_map {