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From: Cornelia Huck <cohuck@redhat.com>
To: Tony Krowiak <akrowiak@linux.vnet.ibm.com>
Cc: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, borntraeger@de.ibm.com,
	pmorel@linux.vnet.ibm.com, pasic@linux.vnet.ibm.com,
	pbonzini@redhat.com, rkrcmar@redhat.com
Subject: Re: [PATCH] KVM: s390: reset crypto attributes for all vcpus
Date: Fri, 20 Apr 2018 10:57:57 +0200	[thread overview]
Message-ID: <20180420105757.506c4421.cohuck@redhat.com> (raw)
In-Reply-To: <1524172432-26211-1-git-send-email-akrowiak@linux.vnet.ibm.com>

On Thu, 19 Apr 2018 17:13:52 -0400
Tony Krowiak <akrowiak@linux.vnet.ibm.com> wrote:

> Introduces a new function to reset the crypto attributes for all
> vcpus whether they are running or not. Each vcpu in KVM will
> be removed from SIE prior to resetting the crypto attributes in its
> SIE state description. After all vcpus have had their crypto attributes
> reset the vcpus will be restored to SIE.
> 
> This function is incorporated into the kvm_s390_vm_set_crypto(kvm)
> function to fix a reported issue whereby the crypto key wrapping
> attributes could potentially get out of synch for running vcpus.
> 
> Reported-by: Halil Pasic <pasic@linux.vnet.ibm.com>
> Signed-off-by: Tony Krowiak <akrowiak@linux.vnet.ibm.com>
> ---
>  arch/s390/kvm/kvm-s390.c |   18 ++++++++++++++----
>  arch/s390/kvm/kvm-s390.h |   13 +++++++++++++
>  2 files changed, 27 insertions(+), 4 deletions(-)

Reviewed-by: Cornelia Huck <cohuck@redhat.com>

  reply	other threads:[~2018-04-20  8:58 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-19 21:13 Tony Krowiak
2018-04-20  8:57 ` Cornelia Huck [this message]
2018-04-20 11:59 ` Janosch Frank
2018-04-20 12:15   ` Janosch Frank
2018-04-22 15:10     ` Tony Krowiak
2018-04-20 12:26 ` David Hildenbrand
2018-04-20 12:28   ` David Hildenbrand
2018-04-22 15:06   ` Tony Krowiak
2018-04-22 15:53     ` Halil Pasic
2018-04-21  0:11 ` kbuild test robot
2018-04-22 16:42   ` Tony Krowiak

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