On Fri, 2011-12-16 at 15:40 +0800, Zang Hongyong wrote:
> 于 2011/12/16,星期五 15:05, Sasha Levin 写道:
> > On Fri, 2011-12-16 at 13:32 +0800, zanghongy...@huawei.com wrote:
> >> From: Hongyong Zang
> >>
> >> Vhost-net uses its own vhost_memory, which results from user space (qemu)
> >> info,
> >> to tr
On Fri, 2011-12-16 at 13:32 +0800, zanghongy...@huawei.com wrote:
> From: Hongyong Zang
>
> Vhost-net uses its own vhost_memory, which results from user space (qemu)
> info,
> to translate GPA to HVA. Since kernel's kvm structure already maintains the
> address relationship in its member *kvm_m
(2011/12/16 14:32), zanghongy...@huawei.com wrote:
> From: Hongyong Zang
>
> Vhost-net uses its own vhost_memory, which results from user space (qemu)
> info,
> to translate GPA to HVA. Since kernel's kvm structure already maintains the
> address relationship in its member *kvm_memslots*, these p
On (Tue) 06 Dec 2011 [09:05:38], Miche Baker-Harvey wrote:
> Amit,
>
> Ah, indeed. I am not using MSI-X, so virtio_pci::vp_try_to_find_vqs()
> calls vp_request_intx() and sets up an interrupt callback. From
> there, when an interrupt occurs, the stack looks something like this:
>
> virtio_pci::
On Mon, 12 Dec 2011 13:10:08 -0500, Don Dutile wrote:
> On 12/12/2011 06:49 AM, Michael S. Tsirkin wrote:
> > On Mon, Dec 12, 2011 at 09:15:03AM +1030, Rusty Russell wrote:
> >> On Sun, 11 Dec 2011 11:42:56 +0200, "Michael S. Tsirkin"
> >> wrote:
> >>> On Thu, Dec 08, 2011 at 09:09:33PM +1030, R
On Thu, 15 Dec 2011 10:27:50 +0200, "Michael S. Tsirkin"
wrote:
> On Tue, Dec 13, 2011 at 12:51:20PM +1030, Rusty Russell wrote:
> I mean like this in block:
>
>
>
> /* Host must always specify the capacity. */
> vdev->config->get(vdev, offsetof(struct virtio_blk_config,
> capa
On Thu, 15 Dec 2011 10:30:49 +0200, "Michael S. Tsirkin"
wrote:
> On Thu, Dec 08, 2011 at 09:02:46PM +1030, Rusty Russell wrote:
> > From: Michael S Tsirkin
> >
> > Virtio drivers should map the part of the range they need, not necessarily
> > all of it.
> >
> > Signed-off-by: Michael S. Tsirk
On Thu, 15 Dec 2011 01:36:44 +, Ben Hutchings
wrote:
> On Fri, 2011-12-09 at 16:01 +1030, Rusty Russell wrote:
> > On Wed, 7 Dec 2011 17:02:04 +, Ben Hutchings
> > wrote:
> > > Most multi-queue controllers could support a kind of hash-based
> > > filtering for TCP/IP by adjusting the RS
On (Thu) 15 Dec 2011 [15:13:14], Michael S. Tsirkin wrote:
> On Thu, Dec 15, 2011 at 06:15:46PM +0530, Amit Shah wrote:
> > Hi,
> >
> > These patches add support for S4 to virtio (pci) and all drivers.
> >
> > Michael saw some race in virtio-net module removal which will need a
> > similar fix fo
CALL FOR PAPERS
The 21st International ACM Symposium on
High-Performance Parallel and Distributed Computing
(HPDC'12)
Delft University of Technology, Delft, the Netherlands
Ju
On Thu, Dec 15, 2011 at 06:15:46PM +0530, Amit Shah wrote:
> Hi,
>
> These patches add support for S4 to virtio (pci) and all drivers.
>
> Michael saw some race in virtio-net module removal which will need a
> similar fix for the freeze code as well. I'll update the virtio-net
> patch with that
Handling balloon hibernate / restore is tricky. If the balloon was
inflated before going into the hibernation state, upon resume, the host
will not have any memory of that. Any pages that were passed on to the
host earlier would most likely be invalid, and the host will have to
re-balloon to the
The probe and PM restore functions will share this code.
Signed-off-by: Amit Shah
---
drivers/virtio/virtio_balloon.c | 48 --
1 files changed, 30 insertions(+), 18 deletions(-)
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
Remove all the vqs, disable napi and detach from the netdev on
hibernation.
Re-create vqs after restoring from a hibernated image, re-enable napi
and re-attach the netdev. This keeps networking working across
hibernation.
Signed-off-by: Amit Shah
---
drivers/net/virtio_net.c | 36 +++
The remove and PM freeze functions will share this code.
Signed-off-by: Amit Shah
---
drivers/net/virtio_net.c | 19 ---
1 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 6baa563..697a0fc 100644
--- a/drive
The probe and PM restore functions will share this code.
Signed-off-by: Amit Shah
---
drivers/net/virtio_net.c | 47 +++--
1 files changed, 28 insertions(+), 19 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 6ee8410.
Delete the vq and flush any pending requests from the block queue on the
freeze callback to prepare for hibernation.
Re-create the vq in the restore callback to resume normal function.
Signed-off-by: Amit Shah
---
drivers/block/virtio_blk.c | 38 ++
1 files
The probe and PM restore functions will share this code.
Signed-off-by: Amit Shah
---
drivers/block/virtio_blk.c | 19 ++-
1 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 4d0b70a..467f218 100644
--- a
Remove all vqs and associated buffers in the freeze callback which
prepares us to go into hibernation state. On restore, re-create all the
vqs and populate the input vqs with buffers to get to the pre-hibernate
state.
Note: Any outstanding unconsumed buffers are discarded; which means
there's a p
This common code will be shared with the PM freeze function.
Signed-off-by: Amit Shah
---
drivers/char/virtio_console.c | 68 -
1 files changed, 40 insertions(+), 28 deletions(-)
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
Handle thaw, restore and freeze notifications from the PM core. Expose
these to individual virtio drivers that can quiesce and resume vq
operations. For drivers not implementing the thaw() method, use the
restore method instead.
These functions also save device-specific data so that the device c
The older PM API doesn't have a way to get notifications on hibernate
events. Switch to the newer one that gives us those notifications.
Signed-off-by: Amit Shah
---
drivers/virtio/virtio_pci.c | 16
1 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/virt
Hi,
These patches add support for S4 to virtio (pci) and all drivers.
Michael saw some race in virtio-net module removal which will need a
similar fix for the freeze code as well. I'll update the virtio-net
patch with that fix once the fix is settled upon and applied.
For each driver, all vqs a
Morning,
On Thu, 2011-12-15 at 03:51 +, Rusty Russell wrote:
> On Mon, 12 Dec 2011 17:57:06 +, Pawel Moll wrote:
> > This patch adds a set of macros that can be used to declare
> > kernel parameters to be parsed _before_ initcalls at a chosen
> > level are executed. Such parameters are ma
On Thu, Dec 08, 2011 at 09:02:46PM +1030, Rusty Russell wrote:
> From: Michael S Tsirkin
>
> Virtio drivers should map the part of the range they need, not necessarily
> all of it.
>
> Signed-off-by: Michael S. Tsirkin
> Signed-off-by: Rusty Russell
I think that we should add a forcenocache
On Tue, Dec 13, 2011 at 12:51:20PM +1030, Rusty Russell wrote:
> On Mon, 12 Dec 2011 20:25:34 +0200, "Michael S. Tsirkin"
> wrote:
> > By the way, a generic question on virtio-pci: we now have:
> >
> > /* virtio config->get() implementation */
> > static void vp_get(struct virtio_device *vdev, u
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