Il 03/07/2012 07:41, Cong Meng ha scritto:
This patch implements the hotplug support for virtio-scsi.
When there is a device attached/detached, the virtio-scsi driver will be
signaled via event virtual queue and it will add/remove the scsi device
in question automatically.
v2: handle
Il 02/07/2012 08:41, Rusty Russell ha scritto:
With the same workload in guest, the guest fires 200K requests to host
with merges enabled in guest (echo 0 /sys/block/vdb/queue/nomerges),
while the guest fires 4K requests to host with merges disabled in
guest (echo 2
On 07/03/2012 09:31 PM, Paolo Bonzini wrote:
Il 02/07/2012 08:41, Rusty Russell ha scritto:
With the same workload in guest, the guest fires 200K requests to host
with merges enabled in guest (echo 0 /sys/block/vdb/queue/nomerges),
while the guest fires 4K requests to host with merges
On 06/18/2012 02:14 PM, Dor Laor wrote:
On 06/18/2012 01:05 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 16:03:23 +0800, Asias Heas...@redhat.com wrote:
On 06/18/2012 03:46 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 14:53:10 +0800, Asias Heas...@redhat.com wrote:
This patch introduces
On 07/03/2012 05:22 PM, Ronen Hod wrote:
On 06/18/2012 02:14 PM, Dor Laor wrote:
On 06/18/2012 01:05 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 16:03:23 +0800, Asias Heas...@redhat.com wrote:
On 06/18/2012 03:46 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 14:53:10 +0800, Asias
On Tue, Jul 03, 2012 at 10:17:46AM +0930, Rusty Russell wrote:
On Mon, 2 Jul 2012 13:08:19 -0300, Rafael Aquini aqu...@redhat.com wrote:
As 'locking in balloon', may I assume the approach I took for the
compaction case
is OK and aligned to address these concerns of yours? If not, do not
On Mon, Jul 02, 2012 at 08:36:02AM +0900, Minchan Kim wrote:
On 06/30/2012 10:34 AM, Rafael Aquini wrote:
void isolate_page_from_balloonlist(struct page* page)
{
page-mapping-a_ops-invalidatepage(page, 0);
}
if (is_balloon_page(page) (page_count(page) == 2)) {
Memory fragmentation introduced by ballooning might reduce significantly
the number of 2MB contiguous memory blocks that can be used within a guest,
thus imposing performance penalties associated with the reduced number of
transparent huge pages that could be used by the guest workload.
This
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
This patch introduces access sychronization to critical elements of struct
virtio_balloon, in order to allow the thread concurrency compaction/migration
bits might ended up imposing to the balloon driver on several situations.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
This patch makes balloon pages movable at allocation time and introduces the
infrastructure needed to perform the balloon page migration operation.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
drivers/virtio/virtio_balloon.c | 96 ++-
This patch is only for testing report purposes and shall be dropped in case of
the rest of this patchset getting accepted for merging.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
drivers/virtio/virtio_balloon.c |1 +
include/linux/vm_event_item.h |2 ++
mm/compaction.c
On Tue, 03 Jul 2012 08:39:39 +0800, Asias He as...@redhat.com wrote:
On 07/02/2012 02:41 PM, Rusty Russell wrote:
Sure, our guest merging might save us 100x as many exits as no merging.
But since we're not doing many requests, does it matter?
We can still have many requests with slow
On Mon, 2 Jul 2012 10:33:08 +0300, Michael S. Tsirkin m...@redhat.com wrote:
In virtio balloon virtqueue_get_buf might now run concurrently with
virtqueue_kick. I audited both and this seems safe in practice but
this is not guaranteed by the API.
Additionally, a spurious interrupt might in
From: Nicholas Bellinger n...@linux-iscsi.org
Hi folks,
This series contains patches required to update tcm_vhost - virtio-scsi
connected hosts - guests to run on v3.5-rc2 mainline code. This series is
available on top of target-pending/auto-next here:
From: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
In order for other vhost devices to use the VHOST_FEATURES bits the
vhost-net specific bits need to be moved to their own VHOST_NET_FEATURES
constant.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
Cc: Zhi Yong Wu wu...@cn.ibm.com
Cc:
From: Stefan Hajnoczi stefa...@gmail.com
The vhost work queue allows processing to be done in vhost worker thread
context, which uses the owner process mm. Access to the vring and guest
memory is typically only possible from vhost worker context so it is
useful to allow work to be queued
From: Nicholas Bellinger n...@risingtidesystems.com
This patch adds the initial vhost_scsi_ioctl() callers for
VHOST_SCSI_SET_ENDPOINT
and VHOST_SCSI_CLEAR_ENDPOINT respectively, and also adds struct
vhost_vring_target
that is used by tcm_vhost code when locating target ports during qemu setup.
From: Nicholas Bellinger n...@linux-iscsi.org
This patch adds the initial code for tcm_vhost, a Vhost level TCM
fabric driver for virtio SCSI initiators into KVM guest.
This code is currently up and running on v3.5-rc2 host+guest along with
the virtio-scsi vdev-scan() patch to allow a proper
From: Nicholas Bellinger n...@linux-iscsi.org
This patch changes virtio-scsi to use a new virtio_driver-scan() callback
so that scsi_scan_host() can be properly invoked once virtio_dev_probe() has
set add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK) to signal active virtio-ring
operation, instead of
From: Nicholas Bellinger n...@linux-iscsi.org
This is currently required for connecting to tcm_vhost in order to prevent
the client LUN scan from detecting the same tcm_vhost WWPN on multiple target
IDs.
Cc: Paolo Bonzini pbonz...@redhat.com
Cc: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
Cc:
On 07/04/2012 12:24 PM, Nicholas A. Bellinger wrote:
From: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
In order for other vhost devices to use the VHOST_FEATURES bits the
vhost-net specific bits need to be moved to their own VHOST_NET_FEATURES
constant.
Signed-off-by: Stefan Hajnoczi
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