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| author | Xiong Zhang <xiong.y.zhang@intel.corp-partner.google.com> | 2019-04-23 17:14:50 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2019-10-01 03:59:47 +0000 |
| commit | 17b0daf88c97be0ace69d4b19b3352053668e96b (patch) | |
| tree | 93c7de722eaa589bf45de3246b847bf3cfa6889a /seccomp | |
| parent | 71a6f0a790eb3f9a6fccbaf08aa915396a9d6749 (diff) | |
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vfio: Integrate VFIO device into pci device model
Create VFIO device and VFIO PCI device in create_devices() function, and intergrate it into PciRootBridge, so guest could see this vfio device. Add a vfio config parameter, this config point to passthrough or mdev device sysfs path. For passthrough case, first user unbind host device from its driver, then bind host device to vfio-pci. Like: echo 0000:00:02.0 > /sys/bus/pci/devices/0000:00:02.0/driver/unbind ech0 8086 1912 > /sys/bus/pci/drivers/vfio-pci/new_id Finally pass the sysfs to crosvm through --vfio=/sys/bus/pci/devices/0000:00:02.0 For mdev case, user create a mdev device through echo $UUID > mdev_type/create, then pass this mdev device to crosvm like --vfio=/sys/bus/pci/devices/0000:00:02.0/$UUID BUG=chromium:992270 TEST=none Change-Id: I0f59d6e93f62f9ab0727ad3a867d204f4ff6ad2d Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.corp-partner.google.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1581140 Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> Reviewed-by: Zach Reizner <zachr@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Diffstat (limited to 'seccomp')
| -rw-r--r-- | seccomp/x86_64/vfio_device.policy | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/seccomp/x86_64/vfio_device.policy b/seccomp/x86_64/vfio_device.policy new file mode 100644 index 0000000..8dd5961 --- /dev/null +++ b/seccomp/x86_64/vfio_device.policy @@ -0,0 +1,10 @@ +# Copyright 2019 The Chromium OS Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. +@include /usr/share/policy/crosvm/common_device.policy + +# VFIO_DEVICE_SET_IRQS, VFIO_IOMMU_MAP/UNMAP_DMA +ioctl: arg1 == 0x3B6E || arg1 == 0x3B71 || arg1 == 0x3B72 +readlink: 1 +pread64: 1 +pwrite64: 1 |