From: Jan Kiszka <jan.kiszka@siemens.com>
To: Alexander Graf <agraf@suse.de>
Cc: kvm <kvm@vger.kernel.org>, qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?
Date: Thu, 19 Jan 2012 14:30:32 +0100 [thread overview]
Message-ID: <4F181AF8.4010409@siemens.com> (raw)
In-Reply-To: <A9B74DB2-93CF-426F-9131-66CE29DB3C57@suse.de>
On 2012-01-19 14:24, Alexander Graf wrote:
>
>
> On 19.01.2012, at 13:46, Jan Kiszka <jan.kiszka@siemens.com> wrote:
>
>> Hi again,
>>
>> do we need some KVM knob comparable to qemu-kvm's -kvm-shadow-memory in
>> upstream?
>
> What does it do? Never heard of it :)
According to inline docs: "Chang[e] the number of mmu pages allocated to
the vm". That's from arch/x86/kvm/mmu.c, kvm_mmu_change_mmu_pages().
That's soft-MMU related so, I bet, of decreasing relevance for x86.
Jan
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
WARNING: multiple messages have this Message-ID (diff)
From: Jan Kiszka <jan.kiszka@siemens.com>
To: Alexander Graf <agraf@suse.de>
Cc: qemu-devel <qemu-devel@nongnu.org>, kvm <kvm@vger.kernel.org>
Subject: Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?
Date: Thu, 19 Jan 2012 14:30:32 +0100 [thread overview]
Message-ID: <4F181AF8.4010409@siemens.com> (raw)
In-Reply-To: <A9B74DB2-93CF-426F-9131-66CE29DB3C57@suse.de>
On 2012-01-19 14:24, Alexander Graf wrote:
>
>
> On 19.01.2012, at 13:46, Jan Kiszka <jan.kiszka@siemens.com> wrote:
>
>> Hi again,
>>
>> do we need some KVM knob comparable to qemu-kvm's -kvm-shadow-memory in
>> upstream?
>
> What does it do? Never heard of it :)
According to inline docs: "Chang[e] the number of mmu pages allocated to
the vm". That's from arch/x86/kvm/mmu.c, kvm_mmu_change_mmu_pages().
That's soft-MMU related so, I bet, of decreasing relevance for x86.
Jan
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2012-01-19 13:30 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-19 12:46 qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics? Jan Kiszka
2012-01-19 12:46 ` [Qemu-devel] " Jan Kiszka
2012-01-19 13:24 ` Alexander Graf
2012-01-19 13:24 ` Alexander Graf
2012-01-19 13:30 ` Jan Kiszka [this message]
2012-01-19 13:30 ` Jan Kiszka
2012-01-19 13:42 ` Alexander Graf
2012-01-19 13:42 ` Alexander Graf
2012-01-19 17:28 ` Marcelo Tosatti
2012-01-19 17:28 ` [Qemu-devel] " Marcelo Tosatti
2012-01-19 17:39 ` Jan Kiszka
2012-01-19 17:39 ` [Qemu-devel] " Jan Kiszka
2012-01-25 11:38 ` Avi Kivity
2012-01-25 11:38 ` [Qemu-devel] " Avi Kivity
2012-01-25 11:57 ` Jan Kiszka
2012-01-25 11:57 ` [Qemu-devel] " Jan Kiszka
2012-01-25 12:04 ` Avi Kivity
2012-01-25 12:04 ` [Qemu-devel] " Avi Kivity
2012-01-25 12:10 ` Jan Kiszka
2012-01-25 12:10 ` [Qemu-devel] " Jan Kiszka
2012-01-25 12:15 ` Avi Kivity
2012-01-25 12:26 ` Jan Kiszka
2012-01-25 12:33 ` Avi Kivity
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4F181AF8.4010409@siemens.com \
--to=jan.kiszka@siemens.com \
--cc=agraf@suse.de \
--cc=kvm@vger.kernel.org \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.