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authorAlex Williamson <alex.williamson@redhat.com>2013-04-16 13:49:18 -0600
committerGleb Natapov <gleb@redhat.com>2013-04-28 12:58:56 +0300
commit2a5bab1004729f3302c776e53ee7c895b98bb1ce (patch)
tree281519b89e9f766a3d83c6978850e9eb72b3e0df /arch/x86/kvm/Kconfig
parent064d1afaa5a60fc391d0b4b77599fc8f63f99cd3 (diff)
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kvm: Allow build-time configuration of KVM device assignment
We hope to at some point deprecate KVM legacy device assignment in favor of VFIO-based assignment. Towards that end, allow legacy device assignment to be deconfigured. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Reviewed-by: Alexander Graf <agraf@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'arch/x86/kvm/Kconfig')
-rw-r--r--arch/x86/kvm/Kconfig13
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 9d50efdb719d..a47a3e54b964 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -21,8 +21,6 @@ config KVM
tristate "Kernel-based Virtual Machine (KVM) support"
depends on HAVE_KVM
depends on HIGH_RES_TIMERS
- # for device assignment:
- depends on PCI
# for TASKSTATS/TASK_DELAY_ACCT:
depends on NET
select PREEMPT_NOTIFIERS
@@ -83,6 +81,17 @@ config KVM_MMU_AUDIT
This option adds a R/W kVM module parameter 'mmu_audit', which allows
audit KVM MMU at runtime.
+config KVM_DEVICE_ASSIGNMENT
+ bool "KVM legacy PCI device assignment support"
+ depends on KVM && PCI && IOMMU_API
+ default y
+ ---help---
+ Provide support for legacy PCI device assignment through KVM. The
+ kernel now also supports a full featured userspace device driver
+ framework through VFIO, which supersedes much of this support.
+
+ If unsure, say Y.
+
# OK, it's a little counter-intuitive to do this, but it puts it neatly under
# the virtualization menu.
source drivers/vhost/Kconfig