linux-stable-rt/virt/kvm
Alex Williamson 3f68b0318b KVM: IOMMU: Disable device assignment without interrupt remapping
IOMMU interrupt remapping support provides a further layer of
isolation for device assignment by preventing arbitrary interrupt
block DMA writes by a malicious guest from reaching the host.  By
default, we should require that the platform provides interrupt
remapping support, with an opt-in mechanism for existing behavior.

Both AMD IOMMU and Intel VT-d2 hardware support interrupt
remapping, however we currently only have software support on
the Intel side.  Users wishing to re-enable device assignment
when interrupt remapping is not supported on the platform can
use the "allow_unsafe_assigned_interrupts=1" module option.

[avi: break long lines]

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:42 +03:00
..
Kconfig
assigned-dev.c KVM: Fix off-by-one in overflow check of KVM_ASSIGN_SET_MSIX_NR 2011-07-12 13:16:18 +03:00
async_pf.c
async_pf.h
coalesced_mmio.c
coalesced_mmio.h
eventfd.c
ioapic.c
ioapic.h
iodev.h
iommu.c KVM: IOMMU: Disable device assignment without interrupt remapping 2011-07-24 11:50:42 +03:00
irq_comm.c
kvm_main.c KVM: MMU: mmio page fault support 2011-07-24 11:50:40 +03:00