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authorChristoffer Dall <christoffer.dall@linaro.org>2013-10-25 21:17:31 +0100
committerChristoffer Dall <christoffer.dall@linaro.org>2013-12-21 10:01:39 -0800
commitc07a0191ef2de1f9510f12d1f88e3b0b5cd8d66f (patch)
tree0f598e9d286a8d48d0c4aeeb43163cb7fff9825f /arch/arm/include/uapi/asm
parente9b152cb957cb194437f37e79f0f3c9d34fe53d6 (diff)
KVM: arm-vgic: Add vgic reg access from dev attr
Add infrastructure to handle distributor and cpu interface register accesses through the KVM_{GET/SET}_DEVICE_ATTR interface by adding the KVM_DEV_ARM_VGIC_GRP_DIST_REGS and KVM_DEV_ARM_VGIC_GRP_CPU_REGS groups and defining the semantics of the attr field to be the MMIO offset as specified in the GICv2 specs. Missing register accesses or other changes in individual register access functions to support save/restore of the VGIC state is added in subsequent patches. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm/include/uapi/asm')
-rw-r--r--arch/arm/include/uapi/asm/kvm.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h
index 76a742769e2b..ef0c8785ba16 100644
--- a/arch/arm/include/uapi/asm/kvm.h
+++ b/arch/arm/include/uapi/asm/kvm.h
@@ -165,6 +165,12 @@ struct kvm_arch_memory_slot {
/* Device Control API: ARM VGIC */
#define KVM_DEV_ARM_VGIC_GRP_ADDR 0
+#define KVM_DEV_ARM_VGIC_GRP_DIST_REGS 1
+#define KVM_DEV_ARM_VGIC_GRP_CPU_REGS 2
+#define KVM_DEV_ARM_VGIC_CPUID_SHIFT 32
+#define KVM_DEV_ARM_VGIC_CPUID_MASK (0xffULL << KVM_DEV_ARM_VGIC_CPUID_SHIFT)
+#define KVM_DEV_ARM_VGIC_OFFSET_SHIFT 0
+#define KVM_DEV_ARM_VGIC_OFFSET_MASK (0xffffffffULL << KVM_DEV_ARM_VGIC_OFFSET_SHIFT)
/* KVM_IRQ_LINE irq field index values */
#define KVM_ARM_IRQ_TYPE_SHIFT 24