On Fri, May 29, 2020 at 04:03:02PM +0800, Jason Wang wrote:
> Note that since virtio specification does not support get/restore
> virtqueue state. So we can not use this driver for VM. This can be
> addressed by extending the virtio specification.
Looks like exactly the kind of hardware
On Fri, May 29, 2020 at 04:03:02PM +0800, Jason Wang wrote:
> +static void vp_vdpa_set_vq_ready(struct vdpa_device *vdpa,
> + u16 qid, bool ready)
> +{
> + struct vp_vdpa *vp_vdpa = vdpa_to_vp(vdpa);
> +
> + vp_iowrite16(qid, _vdpa->common->queue_select);
> +
On Fri, May 29, 2020 at 04:02:58PM +0800, Jason Wang wrote:
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
> index d450e16c5c25..70105e045768 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -166,11 +166,16 @@ static int vhost_poll_wakeup(wait_queue_entry_t
doorbell-mapping/20200531-070834
> base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git
> linux-next
> config: m68k-randconfig-r011-20200601 (attached as .config)
> compiler: m68k-linux-gcc (GCC) 9.3.0
> reproduce (this is a W=1 build):
> wget
> h
On Fri, May 29, 2020 at 04:43:09PM -0700, John Hubbard wrote:
> This code was using get_user_pages*(), in approximately a "Case 5"
> scenario (accessing the data within a page), using the categorization
> from [1]. That means that it's time to convert the get_user_pages*() +
> put_page() calls to
On 2020/5/30 上午2:30, Rob Miller wrote:
Given the need for 4K doorbell such that QEMU can easily map, ect, and
assuming that I have a HW device which exposes 2 VQ's, with a
notification area off of BAR3, offset=whatever, notifier_multiplier=4,
we don't need to have 2 x 4K pages mapped into the
-randconfig-r011-20200601 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux
On Tue, Aug 21, 2018 at 08:47:35AM +0800, Jason Wang wrote:
>
>
> On 2018年08月21日 08:33, Jason Wang wrote:
> >
> >
> > On 2018年08月19日 20:11, xiangxia.m@gmail.com wrote:
> > > From: Tonghao Zhang
> > >
> > > The patch uses vhost_has_work_pending() to check if
> > > the specified handler is
On Sun 31-05-20 22:26:32, John Hubbard wrote:
> There are four cases listed in pin_user_pages.rst. These are
> intended to help developers figure out whether to use
> get_user_pages*(), or pin_user_pages*(). However, the four cases
> do not cover all the situations. For example,
On Fri 29-05-20 16:43:09, John Hubbard wrote:
> This code was using get_user_pages*(), in approximately a "Case 5"
> scenario (accessing the data within a page), using the categorization
> from [1]. That means that it's time to convert the get_user_pages*() +
> put_page() calls to
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