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authorChristoffer Dall <christoffer.dall@arm.com>2018-07-16 15:06:19 +0200
committerMarc Zyngier <marc.zyngier@arm.com>2018-07-21 16:02:21 +0100
commitaa075b0f30b53e397fd4d4162ebf4a3a236b9206 (patch)
tree7b8aee3c4dcde15178d6ecec6e0aba17cdd84193 /include/kvm
parenta2dca217dae29c4ff6420e8c78d56b3f61ae0797 (diff)
downloadlinux-aa075b0f30b53e397fd4d4162ebf4a3a236b9206.tar.gz
KVM: arm/arm64: vgic: Keep track of implementation revision
As we are about to tweak implementation aspects of the VGIC emulation,
while still preserving some level of backwards compatibility support,
add a field to keep track of the implementation revision field which is
reported to the VM and to userspace.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'include/kvm')
-rw-r--r--include/kvm/arm_vgic.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index cfdd2484cc42..7e64c463ab4d 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -217,6 +217,9 @@ struct vgic_dist {
 	/* vGIC model the kernel emulates for the guest (GICv2 or GICv3) */
 	u32			vgic_model;
 
+	/* Implementation revision as reported in the GICD_IIDR */
+	u32			implementation_rev;
+
 	/* Do injected MSIs require an additional device ID? */
 	bool			msis_require_devid;