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[RFC,v2,1/5] Update Linux headers with new MTE support

Message ID a3cdacb0fb46d8e1dd7215800b9abf5b14fa4b86.1615972140.git.haibo.xu@linaro.org
State New
Headers show
Series target/arm: Add MTE support to KVM guest | expand

Commit Message

Haibo Xu March 17, 2021, 9:28 a.m. UTC 
Signed-off-by: Haibo Xu <haibo.xu@linaro.org>
---
 linux-headers/linux/kvm.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
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Patch

diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
index 020b62a619..941743b3a7 100644
--- a/linux-headers/linux/kvm.h
+++ b/linux-headers/linux/kvm.h
@@ -1056,6 +1056,7 @@  struct kvm_ppc_resize_hpt {
 #define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190
 #define KVM_CAP_SYS_HYPERV_CPUID 191
 #define KVM_CAP_DIRTY_LOG_RING 192
+#define KVM_CAP_ARM_MTE 195
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
@@ -1241,6 +1242,20 @@  struct kvm_arm_device_addr {
 	__u64 addr;
 };
 
+#define KVM_ARM_TAGS_TO_GUEST           0
+#define KVM_ARM_TAGS_FROM_GUEST         1
+
+struct kvm_arm_copy_mte_tags {
+	__u64 guest_ipa;
+	__u64 length;
+	union {
+		void *addr;
+		__u64 padding;
+	};
+	__u64 flags;
+	__u64 reserved[2];
+};
+
 /*
  * Device control API, available with KVM_CAP_DEVICE_CTRL
  */
@@ -1396,6 +1411,7 @@  struct kvm_s390_ucas_mapping {
 /* Available with KVM_CAP_PMU_EVENT_FILTER */
 #define KVM_SET_PMU_EVENT_FILTER  _IOW(KVMIO,  0xb2, struct kvm_pmu_event_filter)
 #define KVM_PPC_SVM_OFF		  _IO(KVMIO,  0xb3)
+#define KVM_ARM_MTE_COPY_TAGS	  _IOR(KVMIO,  0xb4, struct kvm_arm_copy_mte_tags)
 
 /* ioctl for vm fd */
 #define KVM_CREATE_DEVICE	  _IOWR(KVMIO,  0xe0, struct kvm_create_device)