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

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

Linus Torvalds committed 7 years ago

Commit 2a11c762 parents 45aee68 73f628e4 files · +89 −54Browse files

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include/uapi/linux/virtio_iommu.h+18−14
@@ -1,8 +1,8 @@
1/* SPDX-License-Identifier: BSD-3-Clause */1/* SPDX-License-Identifier: BSD-3-Clause */
2/*2/*
3 * Virtio-iommu definition v0.93 * Virtio-iommu definition v0.12
4 *4 *
5 * Copyright (C) 2018 Arm Ltd.5 * Copyright (C) 2019 Arm Ltd.
6 */6 */
7#ifndef _UAPI_LINUX_VIRTIO_IOMMU_H7#ifndef _UAPI_LINUX_VIRTIO_IOMMU_H
8#define _UAPI_LINUX_VIRTIO_IOMMU_H8#define _UAPI_LINUX_VIRTIO_IOMMU_H
@@ -11,26 +11,31 @@ · 2 unmodified lines
11 11
12/* Feature bits */12/* Feature bits */
13#define VIRTIO_IOMMU_F_INPUT_RANGE 013#define VIRTIO_IOMMU_F_INPUT_RANGE 0
14#define VIRTIO_IOMMU_F_DOMAIN_BITS 114#define VIRTIO_IOMMU_F_DOMAIN_RANGE 1
15#define VIRTIO_IOMMU_F_MAP_UNMAP 215#define VIRTIO_IOMMU_F_MAP_UNMAP 2
16#define VIRTIO_IOMMU_F_BYPASS 316#define VIRTIO_IOMMU_F_BYPASS 3
17#define VIRTIO_IOMMU_F_PROBE 417#define VIRTIO_IOMMU_F_PROBE 4
18#define VIRTIO_IOMMU_F_MMIO 5
18 19
19struct virtio_iommu_range {20struct virtio_iommu_range_64 {
20 __u64 start;21 __le64 start;
21 __u64 end;22 __le64 end;
23};
24
25struct virtio_iommu_range_32 {
26 __le32 start;
27 __le32 end;
22};28};
23 29
24struct virtio_iommu_config {30struct virtio_iommu_config {
25 /* Supported page sizes */31 /* Supported page sizes */
26 __u64 page_size_mask;32 __le64 page_size_mask;
27 /* Supported IOVA range */33 /* Supported IOVA range */
28 struct virtio_iommu_range input_range;34 struct virtio_iommu_range_64 input_range;
29 /* Max domain ID size */35 /* Max domain ID size */
30 __u8 domain_bits;36 struct virtio_iommu_range_32 domain_range;
31 __u8 padding[3];
32 /* Probe buffer size */37 /* Probe buffer size */
33 __u32 probe_size;38 __le32 probe_size;
34};39};
35 40
36/* Request types */41/* Request types */
@@ -49,6 +54,7 @@ struct virtio_iommu_config { · 12 unmodified lines
49#define VIRTIO_IOMMU_S_RANGE 0x0554#define VIRTIO_IOMMU_S_RANGE 0x05
50#define VIRTIO_IOMMU_S_NOENT 0x0655#define VIRTIO_IOMMU_S_NOENT 0x06
51#define VIRTIO_IOMMU_S_FAULT 0x0756#define VIRTIO_IOMMU_S_FAULT 0x07
57#define VIRTIO_IOMMU_S_NOMEM 0x08
52 58
53struct virtio_iommu_req_head {59struct virtio_iommu_req_head {
54 __u8 type;60 __u8 type;
@@ -78,12 +84,10 @@ struct virtio_iommu_req_detach { · 23 unmodified lines
78 84
79#define VIRTIO_IOMMU_MAP_F_READ (1 << 0)85#define VIRTIO_IOMMU_MAP_F_READ (1 << 0)
80#define VIRTIO_IOMMU_MAP_F_WRITE (1 << 1)86#define VIRTIO_IOMMU_MAP_F_WRITE (1 << 1)
81#define VIRTIO_IOMMU_MAP_F_EXEC (1 << 2)87#define VIRTIO_IOMMU_MAP_F_MMIO (1 << 2)
82#define VIRTIO_IOMMU_MAP_F_MMIO (1 << 3)
83 88
84#define VIRTIO_IOMMU_MAP_F_MASK (VIRTIO_IOMMU_MAP_F_READ | \89#define VIRTIO_IOMMU_MAP_F_MASK (VIRTIO_IOMMU_MAP_F_READ | \
85 VIRTIO_IOMMU_MAP_F_WRITE | \90 VIRTIO_IOMMU_MAP_F_WRITE | \
86 VIRTIO_IOMMU_MAP_F_EXEC | \
87 VIRTIO_IOMMU_MAP_F_MMIO)91 VIRTIO_IOMMU_MAP_F_MMIO)
88 92
89struct virtio_iommu_req_map {93struct virtio_iommu_req_map {