From: Paolo Bonzini <pbonzini@redhat.com>
To: Christoffer Dall <christoffer.dall@arm.com>
Cc: kvm@vger.kernel.org, aarcange@redhat.com, kvmarm@lists.cs.columbia.edu
Subject: Re: Reference count on pages held in secondary MMUs
Date: Tue, 11 Jun 2019 13:29:44 +0200 [thread overview]
Message-ID: <bb04c637-24a6-220e-e596-299be5b1c503@redhat.com> (raw)
In-Reply-To: <20190611112158.GA5318@e113682-lin.lund.arm.com>
On 11/06/19 13:21, Christoffer Dall wrote:
>> If I understand correctly, I think the MMU notifier would not fire if
>> you took an actual reference; the page would be pinned in memory and
>> could not be swapped out.
>>
> That was my understanding too, but I can't find the code path that would
> support this theory.
Yeah, as Andrea said you could drop the reference in the invalidate
callback too.
Paolo
prev parent reply other threads:[~2019-06-11 11:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-09 8:18 Reference count on pages held in secondary MMUs Christoffer Dall
2019-06-09 9:37 ` Paolo Bonzini
2019-06-09 17:40 ` Andrea Arcangeli
2019-06-11 11:51 ` Christoffer Dall
2019-06-22 19:11 ` Andrea Arcangeli
2019-06-26 12:16 ` Christoffer Dall
2019-06-11 11:21 ` Christoffer Dall
2019-06-11 11:29 ` Paolo Bonzini [this message]
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