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| author | Steven Price <steven.price@arm.com> | 2019-10-21 18:28:20 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2019-10-21 21:20:29 +0300 |
| commit | 58772e9a3db72d032eeb12bc011bc5184a3925f4 (patch) | |
| tree | b361c22a662a8134aa13c4351291aa891cdac647 /include/uapi | |
| parent | 8538cb22bbce5a988671b68baf0b0f9e86ca1e87 (diff) | |
| download | linux-58772e9a3db72d032eeb12bc011bc5184a3925f4.tar.xz | |
KVM: arm64: Provide VCPU attributes for stolen time
Allow user space to inform the KVM host where in the physical memory
map the paravirtualized time structures should be located.
User space can set an attribute on the VCPU providing the IPA base
address of the stolen time structure for that VCPU. This must be
repeated for every VCPU in the VM.
The address is given in terms of the physical address visible to
the guest and must be 64 byte aligned. The guest will discover the
address via a hypercall.
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'include/uapi')
| -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 52641d8ca9e8..a540c8357049 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1227,6 +1227,8 @@ enum kvm_device_type { #define KVM_DEV_TYPE_ARM_VGIC_ITS KVM_DEV_TYPE_ARM_VGIC_ITS KVM_DEV_TYPE_XIVE, #define KVM_DEV_TYPE_XIVE KVM_DEV_TYPE_XIVE + KVM_DEV_TYPE_ARM_PV_TIME, +#define KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_MAX, }; |