[PATCH 1/2] KVM: arm64: Add batch group constant and data structure to UAPI header

[Yize Wang]

Add KVM_DEV_ARM_VGIC_GRP_BATCH_REGS group ID, KVM_DEV_ARM_VGIC_BATCH_MAX
limit, and struct kvm_dev_arm_vgic_batch_entry for batch VGIC register
access. These UAPI definitions allow userspace to read/write multiple
VGIC registers in a single ioctl call.

Signed-off-by: Chuan Zheng <zhengchuan at huawei.com>
Signed-off-by: Yize Wang <wangyize7 at huawei.com>
---
 arch/arm64/include/uapi/asm/kvm.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index 019e5e3d892e..f84530274edd 100644
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -418,12 +418,22 @@ enum {
 #define KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO  7
 #define KVM_DEV_ARM_VGIC_GRP_ITS_REGS 8
 #define KVM_DEV_ARM_VGIC_GRP_MAINT_IRQ  9
+#define KVM_DEV_ARM_VGIC_GRP_BATCH_REGS 10
 #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT	10
 #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_MASK \
 			(0x3fffffULL << KVM_DEV_ARM_VGIC_LINE_LEVEL_INFO_SHIFT)
 #define KVM_DEV_ARM_VGIC_LINE_LEVEL_INTID_MASK	0x3ff
 #define VGIC_LEVEL_INFO_LINE_LEVEL	0
 
+#define KVM_DEV_ARM_VGIC_BATCH_MAX	4096
+#define KVM_DEV_ARM_VGIC_ATTR_FLAG_LOCKED 12
+struct kvm_dev_arm_vgic_batch_entry {
+	__u32 group;
+	__u64 attr;
+	__u32 val;
+	__s32 error;
+};
+
 #define   KVM_DEV_ARM_VGIC_CTRL_INIT		0
 #define   KVM_DEV_ARM_ITS_SAVE_TABLES           1
 #define   KVM_DEV_ARM_ITS_RESTORE_TABLES        2
-- 
2.43.0