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(parent: dd4516a) | patch
KVM: x86: Add a helper to retrieve userspace address from kvm_device_attr
authorSean Christopherson <seanjc@google.com>
Thu, 27 Jan 2022 15:31:53 +0000 (07:31 -0800)
committerPaolo Bonzini <pbonzini@redhat.com>
Fri, 28 Jan 2022 12:32:00 +0000 (07:32 -0500)
commit56f289a8d23addfa4408a08f07f42fcfe2a7bd69
tree537c43ada4cd41712fc147053ac6ac178611ee66tree | snapshot
parentdd4516aee365fc9c944c9d6036b6b87363398680commit | diff
KVM: x86: Add a helper to retrieve userspace address from kvm_device_attr

Add a helper to handle converting the u64 userspace address embedded in
struct kvm_device_attr into a userspace pointer, it's all too easy to
forget the intermediate "unsigned long" cast as well as the truncation
check.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/x86.c diff | blob | history
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