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authorAlex Williamson <alex.williamson@redhat.com>2013-10-30 21:02:17 +0400
committerPaolo Bonzini <pbonzini@redhat.com>2013-10-30 22:02:03 +0400
commitec53500fae421e07c5d035918ca454a429732ef4 (patch)
tree3b9e0c67b9982f5b374e819a55cd510c14d481b8 /arch/x86/kvm/Kconfig
parent84cffe499b9418d6c3b4de2ad9599cc2ec50c607 (diff)
downloadlinux-ec53500fae421e07c5d035918ca454a429732ef4.tar.xz
kvm: Add VFIO device
So far we've succeeded at making KVM and VFIO mostly unaware of each other, but areas are cropping up where a connection beyond eventfds and irqfds needs to be made. This patch introduces a KVM-VFIO device that is meant to be a gateway for such interaction. The user creates the device and can add and remove VFIO groups to it via file descriptors. When a group is added, KVM verifies the group is valid and gets a reference to it via the VFIO external user interface. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/Kconfig')
-rw-r--r--arch/x86/kvm/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index a47a3e54b964..b89c5db2b832 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -38,6 +38,7 @@ config KVM
select PERF_EVENTS
select HAVE_KVM_MSI
select HAVE_KVM_CPU_RELAX_INTERCEPT
+ select KVM_VFIO
---help---
Support hosting fully virtualized guest machines using hardware
virtualization extensions. You will need a fairly recent