On Wed, 19 Sep 2018 10:18:39 +0200
David Hildenbrand wrote:
> My suggestion, either
> a) Only use KVM_S390_VM_CPU_FEAT_AP to indicate/enable APIE statically
>for the guest.
> b) Only use KVM_S390_VM_CRYPTO_ENABLE_APIE to indicate/enable APIE
>dynamically.
>
> Both things will be simple
>>
>> Apart from that, looks good to me.
>
> Let me summarize what I think you are suggesting.
>
> For KVM:
> 1. Get rid of KVM_S390_VM_CPU_FEAT_AP in KVM
> 2. Make AP instruction interception the default.
> 3. Provide the KVM_S390_VM_CRYPTO_ENABLE_APIE attribute in KVM if the
> AP
Am 19.09.18 um 00:23 schrieb Halil Pasic:
>
>
> On 09/18/2018 06:59 PM, Tony Krowiak wrote:
>> I've discussed this with Halil -- Pierre is out until next week. We
>> are in agreement that while these changes are viable, they result in
>> a slightly more complicated implementation compared to
On 09/18/2018 06:59 PM, Tony Krowiak wrote:
> I've discussed this with Halil -- Pierre is out until next week. We
> are in agreement that while these changes are viable, they result in
> a slightly more complicated implementation compared to previous versions (e.g.
> kernel v9 QEMU v7), and
On 09/17/2018 04:43 AM, David Hildenbrand wrote:
Am 12.09.18 um 22:08 schrieb Tony Krowiak:
From: Tony Krowiak
Let's use the KVM_SET_DEVICE_ATTR ioctl to enable or disable
hardware interpretation of AP instructions executed on the guest.
If the S390_FEAT_AP feature is installed, AP
Am 12.09.18 um 22:08 schrieb Tony Krowiak:
> From: Tony Krowiak
>
> Let's use the KVM_SET_DEVICE_ATTR ioctl to enable or disable
> hardware interpretation of AP instructions executed on the guest.
> If the S390_FEAT_AP feature is installed, AP instructions will
> be interpreted by default;
On 09/13/2018 01:28 AM, Thomas Huth wrote:
On 2018-09-12 22:08, Tony Krowiak wrote:
From: Tony Krowiak
Let's use the KVM_SET_DEVICE_ATTR ioctl to enable or disable
hardware interpretation of AP instructions executed on the guest.
If the S390_FEAT_AP feature is installed, AP instructions will
On 2018-09-12 22:08, Tony Krowiak wrote:
> From: Tony Krowiak
>
> Let's use the KVM_SET_DEVICE_ATTR ioctl to enable or disable
> hardware interpretation of AP instructions executed on the guest.
> If the S390_FEAT_AP feature is installed, AP instructions will
> be interpreted by default;
