On Mon, Jul 12, 2021 at 11:07:44AM +0800, Jason Wang wrote:
>
> 在 2021/7/12 上午12:08, Michael S. Tsirkin 写道:
> > On Fri, Jun 04, 2021 at 01:38:01PM +0800, Jason Wang wrote:
> > > 在 2021/5/14 下午7:13, Michael S. Tsirkin 写道:
> > > > On Thu, May 06, 2021 at 01:38:29PM +0100, Christoph Hellwig wrote:
>
在 2021/7/12 上午12:08, Michael S. Tsirkin 写道:
On Fri, Jun 04, 2021 at 01:38:01PM +0800, Jason Wang wrote:
在 2021/5/14 下午7:13, Michael S. Tsirkin 写道:
On Thu, May 06, 2021 at 01:38:29PM +0100, Christoph Hellwig wrote:
On Thu, May 06, 2021 at 04:12:17AM -0400, Michael S. Tsirkin wrote:
Let's try
On Fri, Jun 04, 2021 at 01:38:01PM +0800, Jason Wang wrote:
>
> 在 2021/5/14 下午7:13, Michael S. Tsirkin 写道:
> > On Thu, May 06, 2021 at 01:38:29PM +0100, Christoph Hellwig wrote:
> > > On Thu, May 06, 2021 at 04:12:17AM -0400, Michael S. Tsirkin wrote:
> > > > Let's try for just a bit, won't make t
在 2021/5/14 下午7:13, Michael S. Tsirkin 写道:
On Thu, May 06, 2021 at 01:38:29PM +0100, Christoph Hellwig wrote:
On Thu, May 06, 2021 at 04:12:17AM -0400, Michael S. Tsirkin wrote:
Let's try for just a bit, won't make this window anyway:
I have an old idea. Add a way to find out that unmap is a
On Fri, May 14, 2021 at 07:27:22PM +0800, Yongji Xie wrote:
> On Fri, May 14, 2021 at 7:17 PM Stefan Hajnoczi wrote:
> >
> > On Fri, May 14, 2021 at 03:29:20PM +0800, Jason Wang wrote:
> > > On Fri, May 14, 2021 at 12:27 AM Stefan Hajnoczi
> > > wrote:
> > > >
> > > > On Fri, Apr 23, 2021 at 04:
On Fri, May 14, 2021 at 03:29:20PM +0800, Jason Wang wrote:
> On Fri, May 14, 2021 at 12:27 AM Stefan Hajnoczi wrote:
> >
> > On Fri, Apr 23, 2021 at 04:09:35PM +0800, Jason Wang wrote:
> > > Sometimes, the driver doesn't trust the device. This is usually
> > > happens for the encrtpyed VM or VDUS
On Thu, May 06, 2021 at 01:38:29PM +0100, Christoph Hellwig wrote:
> On Thu, May 06, 2021 at 04:12:17AM -0400, Michael S. Tsirkin wrote:
> > Let's try for just a bit, won't make this window anyway:
> >
> > I have an old idea. Add a way to find out that unmap is a nop
> > (or more exactly does not
On Fri, May 14, 2021 at 2:07 PM Yongji Xie wrote:
>
> On Fri, May 14, 2021 at 12:27 AM Stefan Hajnoczi wrote:
> >
> > On Fri, Apr 23, 2021 at 04:09:35PM +0800, Jason Wang wrote:
> > > Sometimes, the driver doesn't trust the device. This is usually
> > > happens for the encrtpyed VM or VDUSE[1].
>
On Fri, May 14, 2021 at 12:27 AM Stefan Hajnoczi wrote:
>
> On Fri, Apr 23, 2021 at 04:09:35PM +0800, Jason Wang wrote:
> > Sometimes, the driver doesn't trust the device. This is usually
> > happens for the encrtpyed VM or VDUSE[1].
>
> Thanks for doing this.
>
> Can you describe the overall memo
On Fri, Apr 23, 2021 at 04:09:35PM +0800, Jason Wang wrote:
> Sometimes, the driver doesn't trust the device. This is usually
> happens for the encrtpyed VM or VDUSE[1].
Thanks for doing this.
Can you describe the overall memory safety model that virtio drivers
must follow? For example:
- Driver
On Thu, May 06, 2021 at 04:12:17AM -0400, Michael S. Tsirkin wrote:
> Let's try for just a bit, won't make this window anyway:
>
> I have an old idea. Add a way to find out that unmap is a nop
> (or more exactly does not use the address/length).
> Then in that case even with DMA API we do not need
On Thu, May 06, 2021 at 11:20:30AM +0800, Jason Wang wrote:
>
> 在 2021/4/23 下午4:09, Jason Wang 写道:
> > Hi:
> >
> > Sometimes, the driver doesn't trust the device. This is usually
> > happens for the encrtpyed VM or VDUSE[1]. In both cases, technology
> > like swiotlb is used to prevent the poking
在 2021/4/23 下午4:09, Jason Wang 写道:
Hi:
Sometimes, the driver doesn't trust the device. This is usually
happens for the encrtpyed VM or VDUSE[1]. In both cases, technology
like swiotlb is used to prevent the poking/mangling of memory from the
device. But this is not sufficient since current virt
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