linux-kernel - Re: [PATCH v9 1/3] s390x: KVM: ipte lock for SCA access should be contained in KVM

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <15c52e89-d6cf-213a-fc03-413d3dcba90c@linux.ibm.com>
Date:   Mon, 16 May 2022 18:30:24 +0200
From:   Pierre Morel <pmorel@...ux.ibm.com>
To:     David Hildenbrand <david@...hat.com>, kvm@...r.kernel.org
Cc:     linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        borntraeger@...ibm.com, frankja@...ux.ibm.com, cohuck@...hat.com,
        thuth@...hat.com, imbrenda@...ux.ibm.com, hca@...ux.ibm.com,
        gor@...ux.ibm.com, wintera@...ux.ibm.com, seiden@...ux.ibm.com,
        nrb@...ux.ibm.com
Subject: Re: [PATCH v9 1/3] s390x: KVM: ipte lock for SCA access should be
 contained in KVM



On 5/12/22 11:08, David Hildenbrand wrote:
> On 06.05.22 11:24, Pierre Morel wrote:
>> The former check to chose between SIIF or not SIIF can be done
>> using the sclp.has_siif instead of accessing per vCPU structures
>>
>> When accessing the SCA, ipte lock and ipte_unlock do not need
>> to access any vcpu structures but only the KVM structure.
>>
>> Let's simplify the ipte handling.
>>
>> Signed-off-by: Pierre Morel <pmorel@...ux.ibm.com>
> 
> Much better
> 
> Reviewed-by: David Hildenbrand <david@...hat.com>
> 
> 

Thanks,
Regards,

Pierre

-- 
Pierre Morel
IBM Lab Boeblingen