| Message ID | 20230908222905.1321305-13-amoorthy@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Improve KVM + userfaultfd live migration via annotated memory faults. | expand |
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst index a74d721a18f6..b0b1124277e8 100644 --- a/Documentation/virt/kvm/api.rst +++ b/Documentation/virt/kvm/api.rst @@ -7788,7 +7788,7 @@ error/annotated fault. 7.35 KVM_CAP_USERFAULT_ON_MISSING --------------------------------- -:Architectures: x86 +:Architectures: x86, arm64 :Returns: Informational only, -EINVAL on direct KVM_ENABLE_CAP. The presence of this capability indicates that userspace may set the diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index 83c1e09be42e..d966a955d876 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -43,6 +43,7 @@ menuconfig KVM select GUEST_PERF_EVENTS if PERF_EVENTS select INTERVAL_TREE select XARRAY_MULTI + select HAVE_KVM_USERFAULT_ON_MISSING help Support hosting virtualized guest machines.
The relevant __gfn_to_pfn_memslot() call in user_mem_abort() already uses MEMSLOT_ACCESS_NONATOMIC_MAY_UPGRADE. Signed-off-by: Anish Moorthy <amoorthy@google.com> --- Documentation/virt/kvm/api.rst | 2 +- arch/arm64/kvm/Kconfig | 1 + 2 files changed, 2 insertions(+), 1 deletion(-)