linux-kernel - Re: [PATCH v7 01/17] KVM: s390: pv: leak the topmost page table when destroy fails

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Message-ID: <20220207154954.52492029@p-imbrenda>
Date:   Mon, 7 Feb 2022 15:49:54 +0100
From:   Claudio Imbrenda <imbrenda@...ux.ibm.com>
To:     Heiko Carstens <hca@...ux.ibm.com>
Cc:     Janosch Frank <frankja@...ux.ibm.com>, kvm@...r.kernel.org,
        borntraeger@...ibm.com, thuth@...hat.com, pasic@...ux.ibm.com,
        david@...hat.com, linux-s390@...r.kernel.org,
        linux-kernel@...r.kernel.org, scgl@...ux.ibm.com
Subject: Re: [PATCH v7 01/17] KVM: s390: pv: leak the topmost page table
 when destroy fails

On Mon, 7 Feb 2022 15:33:15 +0100
Heiko Carstens <hca@...ux.ibm.com> wrote:

> > > +	asce = (gmap->asce & ~PAGE_MASK) | __pa(table);  
> > 
> > Please add a comment:
> > Set the new table origin while preserving ASCE control bits like table type
> > and length.  
> 
> And while touching this anyway, please make use of _ASCE_ORIGIN
> instead of PAGE_MASK.

will fix