On Fri, 22 Oct 2021 13:29:13 +0200
Janis Schoetterl-Glausch <scgl@xxxxxxxxxxxxx> wrote:
> Retry if fixup_user_fault succeeds.
> The same issue in handle_pfmf was fixed by
> a11bdb1a6b78 (KVM: s390: Fix pfmf and conditional skey emulation).
>
> Fixes: bd096f644319 ("KVM: s390: Add skey emulation fault handling")
> Signed-off-by: Janis Schoetterl-Glausch <scgl@xxxxxxxxxxxxx>
with the description fixed as indicated by Christian:
Reviewed-by: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx>
> ---
> arch/s390/kvm/priv.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
> index 53da4ceb16a3..417154b314a6 100644
> --- a/arch/s390/kvm/priv.c
> +++ b/arch/s390/kvm/priv.c
> @@ -397,6 +397,8 @@ static int handle_sske(struct kvm_vcpu *vcpu)
> mmap_read_unlock(current->mm);
> if (rc == -EFAULT)
> return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
> + if (rc == -EAGAIN)
> + continue;
> if (rc < 0)
> return rc;
> start += PAGE_SIZE;
