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authorAndre Przywara <andre.przywara@arm.com>2014-06-03 12:26:03 +0400
committerChristoffer Dall <christoffer.dall@linaro.org>2015-01-20 20:25:32 +0300
commitb5d84ff600a244b655bd4f657f5350f29b0ce611 (patch)
treedfbb1d876f6f4254f99c741170b886cc6a0d928a /include/kvm
parent6d52f35af10cf24d59b43f3fd8c938ad23cab543 (diff)
downloadlinux-b5d84ff600a244b655bd4f657f5350f29b0ce611.tar.xz
arm/arm64: KVM: enable kernel side of GICv3 emulation
With all the necessary GICv3 emulation code in place, we can now connect the code to the GICv3 backend in the kernel. The LR register handling is different depending on the emulated GIC model, so provide different implementations for each. Also allow non-v2-compatible GICv3 implementations (which don't provide MMIO regions for the virtual CPU interface in the DT), but restrict those hosts to support GICv3 guests only. If the device tree provides a GICv2 compatible GICV resource entry, but that one is faulty, just disable the GICv2 emulation and let the user use at least the GICv3 emulation for guests. To provide proper support for the legacy KVM_CREATE_IRQCHIP ioctl, note virtual GICv2 compatibility in struct vgic_params and use it on creating a VGICv2. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'include/kvm')
-rw-r--r--include/kvm/arm_vgic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index b9b2e05a39ef..39039d5f09a8 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -134,6 +134,8 @@ struct vgic_params {
/* Virtual control interface base address */
void __iomem *vctrl_base;
int max_gic_vcpus;
+ /* Only needed for the legacy KVM_CREATE_IRQCHIP */
+ bool can_emulate_gicv2;
};
struct vgic_vm_ops {