arm64: KVM: Add VGIC device control for arm64

This fixes the build breakage introduced by
c07a0191ef2de1f9510f12d1f88e3b0b5cd8d66f and adds support for the device
control API and save/restore of the VGIC state for ARMv8.

The defines were simply missing from the arm64 header files and
uaccess.h must be implicitly imported from somewhere else on arm.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index 495ab6f84a6117a43344a49707bd400698bcf737..eaf54a30bedcef3ee1b88b93e2e0f4741f0ef10d 100644 (file)
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -148,6 +148,15 @@ struct kvm_arch_memory_slot {
 #define KVM_REG_ARM_TIMER_CNT          ARM64_SYS_REG(3, 3, 14, 3, 2)
 #define KVM_REG_ARM_TIMER_CVAL         ARM64_SYS_REG(3, 3, 14, 0, 2)
 
+/* 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
 #define KVM_ARM_IRQ_TYPE_MASK          0xff

diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index be456ce264d0b7cca15b61778f94f7290b33cf98..8ca405cd7c1afce8fbbf38a51bf5cd75b2f32168 100644 (file)
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -24,6 +24,7 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
+#include <linux/uaccess.h>
 
 #include <linux/irqchip/arm-gic.h>