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| author | Marc Zyngier <maz@kernel.org> | 2021-06-22 17:09:34 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-06-22 17:09:34 +0300 |
| commit | 9f03db6673598f618f10ba01b3f8824bd5f31a41 (patch) | |
| tree | 219eab43901af8c7fb1e1498f597ecb03988d51e /include | |
| parent | 2fea6cf7d32141b9e95e30500f1d50a9f92a7371 (diff) | |
| parent | 04c02c201d7e8149ae336ead69fb64e4e6f94bc9 (diff) | |
| download | linux-9f03db6673598f618f10ba01b3f8824bd5f31a41.tar.xz | |
Merge branch kvm-arm64/mmu/mte into kvmarm-master/next
KVM/arm64 support for MTE, courtesy of Steven Price.
It allows the guest to use memory tagging, and offers
a new userspace API to save/restore the tags.
* kvm-arm64/mmu/mte:
KVM: arm64: Document MTE capability and ioctl
KVM: arm64: Add ioctl to fetch/store tags in a guest
KVM: arm64: Expose KVM_ARM_CAP_MTE
KVM: arm64: Save/restore MTE registers
KVM: arm64: Introduce MTE VM feature
arm64: mte: Sync tags for pages where PTE is untagged
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/kvm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 79d9c44d1ad7..da1edd2b4046 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1083,6 +1083,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_SGX_ATTRIBUTE 196 #define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197 #define KVM_CAP_PTP_KVM 198 +#define KVM_CAP_ARM_MTE 199 #ifdef KVM_CAP_IRQ_ROUTING @@ -1428,6 +1429,7 @@ 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) |