From: Stefan Hajnoczi <stefanha@gmail.com>
To: Liu Ping Fan <qemulist@gmail.com>
Cc: Peter Maydell <peter.maydell@linaro.org>,
Anthony Liguori <aliguori@us.ibm.com>,
Jan Kiszka <jan.kiszka@siemens.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
qemu-devel@nongnu.org,
Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 3/5] vring: use hostmem's RAM safe api
Date: Thu, 11 Apr 2013 12:15:27 +0200 [thread overview]
Message-ID: <20130411101527.GD9165@stefanha-thinkpad.redhat.com> (raw)
In-Reply-To: <1364804434-7980-4-git-send-email-qemulist@gmail.com>
On Mon, Apr 01, 2013 at 04:20:32PM +0800, Liu Ping Fan wrote:
> @@ -51,7 +50,7 @@ bool vring_setup(Vring *vring, VirtIODevice *vdev, int n)
>
> void vring_teardown(Vring *vring)
> {
> - hostmem_finalize(&vring->hostmem);
> + memory_region_unref(vring->vring_mr);
> }
dataplane keeps a reference to the vring. This prevents memory hot
unplug while the device is up. If this is a problem we'll have to
reduce the lifespan of the vring mapping.
Stefan
next prev parent reply other threads:[~2013-04-11 10:15 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-01 8:20 [Qemu-devel] [PATCH 0/5] proposal to make hostmem listener RAM unplug safe Liu Ping Fan
2013-04-01 8:20 ` [Qemu-devel] [PATCH 1/5] memory: add ref/unref interface for MemroyRegionOps Liu Ping Fan
2013-04-11 9:49 ` Stefan Hajnoczi
2013-04-12 4:12 ` liu ping fan
2013-04-01 8:20 ` [Qemu-devel] [PATCH 2/5] hostmem: make hostmem global and RAM hotunplg safe Liu Ping Fan
2013-04-02 6:11 ` li guang
2013-04-11 10:09 ` Paolo Bonzini
2013-04-12 6:46 ` liu ping fan
2013-04-12 8:21 ` Stefan Hajnoczi
2013-04-11 10:11 ` Stefan Hajnoczi
2013-04-11 10:26 ` Paolo Bonzini
2013-04-12 3:55 ` liu ping fan
2013-04-12 8:38 ` Stefan Hajnoczi
2013-04-12 10:03 ` Paolo Bonzini
2013-04-15 1:42 ` liu ping fan
2013-04-15 6:38 ` Paolo Bonzini
2013-04-01 8:20 ` [Qemu-devel] [PATCH 3/5] vring: use hostmem's RAM safe api Liu Ping Fan
2013-04-11 10:15 ` Stefan Hajnoczi [this message]
2013-04-12 4:49 ` liu ping fan
2013-04-12 8:41 ` Stefan Hajnoczi
2013-04-01 8:20 ` [Qemu-devel] [PATCH 4/5] virtio-blk: release reference to RAM's memoryRegion Liu Ping Fan
2013-04-02 5:58 ` li guang
2013-04-12 4:44 ` liu ping fan
2013-04-11 10:20 ` Stefan Hajnoczi
2013-04-12 4:48 ` liu ping fan
2013-04-12 8:45 ` Stefan Hajnoczi
2013-04-12 9:05 ` liu ping fan
2013-04-16 7:57 ` Stefan Hajnoczi
2013-04-16 8:12 ` Paolo Bonzini
2013-04-01 8:20 ` [Qemu-devel] [PATCH 5/5] hostmem: init/finalize hostmem listener Liu Ping Fan
2013-04-11 10:02 ` Paolo Bonzini
2013-04-11 12:08 ` liu ping fan
2013-04-11 13:14 ` Paolo Bonzini
2013-06-13 4:38 ` [Qemu-devel] about atexit() (was: [PATCH 5/5] hostmem: init/finalize hostmem listener) Amos Kong
2013-06-13 8:51 ` liu ping fan
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