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| author | Alex Williamson <alex.williamson@redhat.com> | 2011-12-21 05:59:03 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-12-25 16:13:31 +0100 |
| commit | 423873736b78f549fbfa2f715f2e4de7e6c5e1e9 (patch) | |
| tree | 62526563ccca81957a4c100aa0bc359dcd10af08 /Documentation/virtual/kvm | |
| parent | KVM: x86: Prevent starting PIT timers in the absence of irqchip support (diff) | |
| download | linux-423873736b78f549fbfa2f715f2e4de7e6c5e1e9.tar.xz linux-423873736b78f549fbfa2f715f2e4de7e6c5e1e9.zip | |
KVM: Remove ability to assign a device without iommu support
This option has no users and it exposes a security hole that we
can allow devices to be assigned without iommu protection. Make
KVM_DEV_ASSIGN_ENABLE_IOMMU a mandatory option.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'Documentation/virtual/kvm')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 7945b0bd35e2..ee2c96b3ba5a 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -1151,6 +1151,9 @@ following flags are specified: /* Depends on KVM_CAP_IOMMU */ #define KVM_DEV_ASSIGN_ENABLE_IOMMU (1 << 0) +The KVM_DEV_ASSIGN_ENABLE_IOMMU flag is a mandatory option to ensure +isolation of the device. Usages not specifying this flag are deprecated. + 4.49 KVM_DEASSIGN_PCI_DEVICE Capability: KVM_CAP_DEVICE_DEASSIGNMENT |