Re: [PATCH v1 0/4] s390/kvm: fix MVPG when in VSIE

2021-01-04 Thread Claudio Imbrenda
On Sun, 20 Dec 2020 10:40:27 +0100 David Hildenbrand wrote: > On 18.12.20 15:18, Claudio Imbrenda wrote: > > The current handling of the MVPG instruction when executed in a > > nested guest is wrong, and can lead to the nested guest hanging. > > Hi, > > thanks for spotting and debugging! Is t

Re: [PATCH v1 0/4] s390/kvm: fix MVPG when in VSIE

2020-12-20 Thread David Hildenbrand
On 18.12.20 15:18, Claudio Imbrenda wrote: > The current handling of the MVPG instruction when executed in a nested > guest is wrong, and can lead to the nested guest hanging. Hi, thanks for spotting and debugging! Is this related to nested guests hanging while migrating (mentioned by Janosch at

[PATCH v1 0/4] s390/kvm: fix MVPG when in VSIE

2020-12-18 Thread Claudio Imbrenda
The current handling of the MVPG instruction when executed in a nested guest is wrong, and can lead to the nested guest hanging. This patchset fixes the behaviour to be more architecturally correct, and fixes the hangs observed. Claudio Imbrenda (4): s390/kvm: VSIE: stop leaking host addresses