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authorEric Auger <eric.auger@redhat.com>2017-10-26 17:23:11 +0200
committerChristoffer Dall <christoffer.dall@linaro.org>2017-11-06 16:23:19 +0100
commit3eb4271b4ab6d38a3c113a19f358f606702e08ef (patch)
treefff5da9bc0f0fb5cb4403bda552648bda4b1a84b /arch
parentae204f80ca4074b6db07bd28c75faf02718735a0 (diff)
KVM: arm/arm64: vgic-its: Implement KVM_DEV_ARM_ITS_CTRL_RESET
On reset we clear the valid bits of GITS_CBASER and GITS_BASER<n>. We also clear command queue registers and free the cache (device, collection, and lpi lists). As we need to take the same locks as save/restore functions, we create a vgic_its_ctrl() wrapper that handles KVM_DEV_ARM_VGIC_GRP_CTRL group functions. Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/include/uapi/asm/kvm.h1
-rw-r--r--arch/arm64/include/uapi/asm/kvm.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h
index 665c454e50d0..b56895593c84 100644
--- a/arch/arm/include/uapi/asm/kvm.h
+++ b/arch/arm/include/uapi/asm/kvm.h
@@ -221,6 +221,7 @@ struct kvm_arch_memory_slot {
#define KVM_DEV_ARM_ITS_SAVE_TABLES 1
#define KVM_DEV_ARM_ITS_RESTORE_TABLES 2
#define KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES 3
+#define KVM_DEV_ARM_ITS_CTRL_RESET 4
/* KVM_IRQ_LINE irq field index values */
#define KVM_ARM_IRQ_TYPE_SHIFT 24
diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index 0004feef7cc2..37ca7394549c 100644
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -233,6 +233,7 @@ struct kvm_arch_memory_slot {
#define KVM_DEV_ARM_ITS_SAVE_TABLES 1
#define KVM_DEV_ARM_ITS_RESTORE_TABLES 2
#define KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES 3
+#define KVM_DEV_ARM_ITS_CTRL_RESET 4
/* Device Control API on vcpu fd */
#define KVM_ARM_VCPU_PMU_V3_CTRL 0