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SubjectRe: [PATCH] KVM: s390: Disallow invalid bits in kvm_valid_regs and kvm_dirty_regs
On Wed,  4 Sep 2019 09:13:08 +0200
Thomas Huth <thuth@redhat.com> wrote:

> If unknown bits are set in kvm_valid_regs or kvm_dirty_regs, this
> clearly indicates that something went wrong in the KVM userspace
> application. The x86 variant of KVM already contains a check for
> bad bits (and the corresponding kselftest checks this), so let's
> do the same on s390x now, too.
>
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
> arch/s390/include/uapi/asm/kvm.h | 6 ++++
> arch/s390/kvm/kvm-s390.c | 4 +++
> .../selftests/kvm/s390x/sync_regs_test.c | 30 +++++++++++++++++++
> 3 files changed, 40 insertions(+)

With splitting out the selftest,
Reviewed-by: Cornelia Huck <cohuck@redhat.com>

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