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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 /arch/arm64/include/uapi/asm/kvm.h | |
| 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 'arch/arm64/include/uapi/asm/kvm.h')
| -rw-r--r-- | arch/arm64/include/uapi/asm/kvm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h index 67c21f9bdbad..cff1ba12c768 100644 --- a/arch/arm64/include/uapi/asm/kvm.h +++ b/arch/arm64/include/uapi/asm/kvm.h @@ -323,6 +323,8 @@ struct kvm_vcpu_events { #define KVM_ARM_VCPU_TIMER_CTRL 1 #define KVM_ARM_VCPU_TIMER_IRQ_VTIMER 0 #define KVM_ARM_VCPU_TIMER_IRQ_PTIMER 1 +#define KVM_ARM_VCPU_PVTIME_CTRL 2 +#define KVM_ARM_VCPU_PVTIME_IPA 0 /* KVM_IRQ_LINE irq field index values */ #define KVM_ARM_IRQ_VCPU2_SHIFT 28 |