On 2020/3/17 下午10:13, Peter Xu wrote:
On Tue, Mar 17, 2020 at 11:04:26AM +0800, Jason Wang wrote:
On 2020/3/17 上午2:14, Peter Xu wrote:
On Mon, Mar 16, 2020 at 01:19:54PM -0400, Michael S. Tsirkin wrote:
On Fri, Mar 13, 2020 at 12:31:22PM -0400, Peter Xu wrote:
On Fri, Mar 13, 2020 at
On Tue, Mar 17, 2020 at 10:39:04AM -0400, Peter Xu wrote:
> On Tue, Mar 17, 2020 at 02:28:42AM -0400, Michael S. Tsirkin wrote:
> > On Mon, Mar 16, 2020 at 02:14:05PM -0400, Peter Xu wrote:
> > > On Mon, Mar 16, 2020 at 01:19:54PM -0400, Michael S. Tsirkin wrote:
> > > > On Fri, Mar 13, 2020 at
On Tue, Mar 17, 2020 at 02:28:42AM -0400, Michael S. Tsirkin wrote:
> On Mon, Mar 16, 2020 at 02:14:05PM -0400, Peter Xu wrote:
> > On Mon, Mar 16, 2020 at 01:19:54PM -0400, Michael S. Tsirkin wrote:
> > > On Fri, Mar 13, 2020 at 12:31:22PM -0400, Peter Xu wrote:
> > > > On Fri, Mar 13, 2020 at
On Tue, Mar 17, 2020 at 11:04:26AM +0800, Jason Wang wrote:
>
> On 2020/3/17 上午2:14, Peter Xu wrote:
> > On Mon, Mar 16, 2020 at 01:19:54PM -0400, Michael S. Tsirkin wrote:
> > > On Fri, Mar 13, 2020 at 12:31:22PM -0400, Peter Xu wrote:
> > > > On Fri, Mar 13, 2020 at 11:29:59AM -0400, Michael S.
On Mon, Mar 16, 2020 at 02:14:05PM -0400, Peter Xu wrote:
> On Mon, Mar 16, 2020 at 01:19:54PM -0400, Michael S. Tsirkin wrote:
> > On Fri, Mar 13, 2020 at 12:31:22PM -0400, Peter Xu wrote:
> > > On Fri, Mar 13, 2020 at 11:29:59AM -0400, Michael S. Tsirkin wrote:
> > > > On Fri, Mar 13, 2020 at
On 2020/3/17 上午2:14, Peter Xu wrote:
On Mon, Mar 16, 2020 at 01:19:54PM -0400, Michael S. Tsirkin wrote:
On Fri, Mar 13, 2020 at 12:31:22PM -0400, Peter Xu wrote:
On Fri, Mar 13, 2020 at 11:29:59AM -0400, Michael S. Tsirkin wrote:
On Fri, Mar 13, 2020 at 01:44:46PM +0100, Halil Pasic wrote:
On Mon, Mar 16, 2020 at 05:57:37PM +0100, Halil Pasic wrote:
> On Fri, 13 Mar 2020 12:31:22 -0400
> Peter Xu wrote:
>
> > On Fri, Mar 13, 2020 at 11:29:59AM -0400, Michael S. Tsirkin wrote:
> > > On Fri, Mar 13, 2020 at 01:44:46PM +0100, Halil Pasic wrote:
> > > > [..]
> > > > > >
> > > > > >
On Mon, Mar 16, 2020 at 01:19:54PM -0400, Michael S. Tsirkin wrote:
> On Fri, Mar 13, 2020 at 12:31:22PM -0400, Peter Xu wrote:
> > On Fri, Mar 13, 2020 at 11:29:59AM -0400, Michael S. Tsirkin wrote:
> > > On Fri, Mar 13, 2020 at 01:44:46PM +0100, Halil Pasic wrote:
> > > > [..]
> > > > > >
> > >
On Fri, 13 Mar 2020 12:31:22 -0400
Peter Xu wrote:
> On Fri, Mar 13, 2020 at 11:29:59AM -0400, Michael S. Tsirkin wrote:
> > On Fri, Mar 13, 2020 at 01:44:46PM +0100, Halil Pasic wrote:
> > > [..]
> > > > >
> > > > > CCing Tom. @Tom does vhost-vsock work for you with SEV and current
> > > > >
On Fri, Mar 13, 2020 at 12:31:22PM -0400, Peter Xu wrote:
> On Fri, Mar 13, 2020 at 11:29:59AM -0400, Michael S. Tsirkin wrote:
> > On Fri, Mar 13, 2020 at 01:44:46PM +0100, Halil Pasic wrote:
> > > [..]
> > > > >
> > > > > CCing Tom. @Tom does vhost-vsock work for you with SEV and current
> > >
On Fri, Mar 13, 2020 at 03:27:59PM -0500, Brijesh Singh wrote:
>
> On 3/13/20 7:44 AM, Halil Pasic wrote:
> > [..]
> >>> CCing Tom. @Tom does vhost-vsock work for you with SEV and current qemu?
> >>>
> >>> Also, one can specify iommu_platform=on on a device that ain't a part of
> >>> a
On 3/13/20 7:44 AM, Halil Pasic wrote:
> [..]
>>> CCing Tom. @Tom does vhost-vsock work for you with SEV and current qemu?
>>>
>>> Also, one can specify iommu_platform=on on a device that ain't a part of
>>> a secure-capable VM, just for the fun of it. And that breaks
>>> vhost-vsock. Or is
On Fri, Mar 13, 2020 at 11:29:59AM -0400, Michael S. Tsirkin wrote:
> On Fri, Mar 13, 2020 at 01:44:46PM +0100, Halil Pasic wrote:
> > [..]
> > > >
> > > > CCing Tom. @Tom does vhost-vsock work for you with SEV and current qemu?
> > > >
> > > > Also, one can specify iommu_platform=on on a device
On Fri, Mar 13, 2020 at 01:44:46PM +0100, Halil Pasic wrote:
> [..]
> > >
> > > CCing Tom. @Tom does vhost-vsock work for you with SEV and current qemu?
> > >
> > > Also, one can specify iommu_platform=on on a device that ain't a part of
> > > a secure-capable VM, just for the fun of it. And
[..]
> >
> > CCing Tom. @Tom does vhost-vsock work for you with SEV and current qemu?
> >
> > Also, one can specify iommu_platform=on on a device that ain't a part of
> > a secure-capable VM, just for the fun of it. And that breaks
> > vhost-vsock. Or is setting iommu_platform=on only valid if
>
On Thu, 27 Feb 2020 10:47:22 -0500
"Michael S. Tsirkin" wrote:
> On Thu, Feb 27, 2020 at 02:02:15PM +0100, Halil Pasic wrote:
> > On Wed, 26 Feb 2020 11:52:26 -0500
> > "Michael S. Tsirkin" wrote:
> >
> > > On Wed, Feb 26, 2020 at 04:36:18PM +0100, Halil Pasic wrote:
> > > > On Wed, 26 Feb
On 2/27/20 7:02 AM, Halil Pasic wrote:
> On Wed, 26 Feb 2020 11:52:26 -0500
> "Michael S. Tsirkin" wrote:
>
>> On Wed, Feb 26, 2020 at 04:36:18PM +0100, Halil Pasic wrote:
>>> On Wed, 26 Feb 2020 08:37:13 -0500
>>> "Michael S. Tsirkin" wrote:
>>>
On Wed, Feb 26, 2020 at 02:28:39PM +0100,
On Thu, Feb 27, 2020 at 02:02:15PM +0100, Halil Pasic wrote:
> On Wed, 26 Feb 2020 11:52:26 -0500
> "Michael S. Tsirkin" wrote:
>
> > On Wed, Feb 26, 2020 at 04:36:18PM +0100, Halil Pasic wrote:
> > > On Wed, 26 Feb 2020 08:37:13 -0500
> > > "Michael S. Tsirkin" wrote:
> > >
> > > > On Wed,
On Wed, 26 Feb 2020 11:52:26 -0500
"Michael S. Tsirkin" wrote:
> On Wed, Feb 26, 2020 at 04:36:18PM +0100, Halil Pasic wrote:
> > On Wed, 26 Feb 2020 08:37:13 -0500
> > "Michael S. Tsirkin" wrote:
> >
> > > On Wed, Feb 26, 2020 at 02:28:39PM +0100, Halil Pasic wrote:
> > > > On Wed, 26 Feb
On Wed, Feb 26, 2020 at 04:36:18PM +0100, Halil Pasic wrote:
> On Wed, 26 Feb 2020 08:37:13 -0500
> "Michael S. Tsirkin" wrote:
>
> > On Wed, Feb 26, 2020 at 02:28:39PM +0100, Halil Pasic wrote:
> > > On Wed, 26 Feb 2020 17:43:57 +0800
> > > Jason Wang wrote:
> > >
> > > > We turn on device
On Wed, 26 Feb 2020 08:37:13 -0500
"Michael S. Tsirkin" wrote:
> On Wed, Feb 26, 2020 at 02:28:39PM +0100, Halil Pasic wrote:
> > On Wed, 26 Feb 2020 17:43:57 +0800
> > Jason Wang wrote:
> >
> > > We turn on device IOTLB via VIRTIO_F_IOMMU_PLATFORM unconditionally on
> > > platform without
On Wed, Feb 26, 2020 at 01:55:39PM +0100, Halil Pasic wrote:
> On Wed, 26 Feb 2020 04:53:33 -0500
> "Michael S. Tsirkin" wrote:
>
> > On Wed, Feb 26, 2020 at 05:43:57PM +0800, Jason Wang wrote:
> > > We turn on device IOTLB via VIRTIO_F_IOMMU_PLATFORM unconditionally on
> > > platform without
On Wed, Feb 26, 2020 at 02:28:39PM +0100, Halil Pasic wrote:
> On Wed, 26 Feb 2020 17:43:57 +0800
> Jason Wang wrote:
>
> > We turn on device IOTLB via VIRTIO_F_IOMMU_PLATFORM unconditionally on
> > platform without IOMMU support. This can lead unnecessary IOTLB
> > transactions which will
On Wed, 26 Feb 2020 17:43:57 +0800
Jason Wang wrote:
> We turn on device IOTLB via VIRTIO_F_IOMMU_PLATFORM unconditionally on
> platform without IOMMU support. This can lead unnecessary IOTLB
> transactions which will damage the performance.
>
> Fixing this by check whether the device is backed
On Wed, 26 Feb 2020 04:53:33 -0500
"Michael S. Tsirkin" wrote:
> On Wed, Feb 26, 2020 at 05:43:57PM +0800, Jason Wang wrote:
> > We turn on device IOTLB via VIRTIO_F_IOMMU_PLATFORM unconditionally on
> > platform without IOMMU support. This can lead unnecessary IOTLB
> > transactions which will
On Wed, 26 Feb 2020 06:44:25 -0500
"Michael S. Tsirkin" wrote:
> On Wed, Feb 26, 2020 at 06:17:34PM +0800, Jason Wang wrote:
> >
> > On 2020/2/26 下午5:53, Michael S. Tsirkin wrote:
> > > On Wed, Feb 26, 2020 at 05:43:57PM +0800, Jason Wang wrote:
> > > > We turn on device IOTLB via
On Wed, Feb 26, 2020 at 06:17:34PM +0800, Jason Wang wrote:
>
> On 2020/2/26 下午5:53, Michael S. Tsirkin wrote:
> > On Wed, Feb 26, 2020 at 05:43:57PM +0800, Jason Wang wrote:
> > > We turn on device IOTLB via VIRTIO_F_IOMMU_PLATFORM unconditionally on
> > > platform without IOMMU support. This
On 2020/2/26 下午5:53, Michael S. Tsirkin wrote:
On Wed, Feb 26, 2020 at 05:43:57PM +0800, Jason Wang wrote:
We turn on device IOTLB via VIRTIO_F_IOMMU_PLATFORM unconditionally on
platform without IOMMU support. This can lead unnecessary IOTLB
transactions which will damage the performance.
On Wed, Feb 26, 2020 at 05:43:57PM +0800, Jason Wang wrote:
> We turn on device IOTLB via VIRTIO_F_IOMMU_PLATFORM unconditionally on
> platform without IOMMU support. This can lead unnecessary IOTLB
> transactions which will damage the performance.
>
> Fixing this by check whether the device is
We turn on device IOTLB via VIRTIO_F_IOMMU_PLATFORM unconditionally on
platform without IOMMU support. This can lead unnecessary IOTLB
transactions which will damage the performance.
Fixing this by check whether the device is backed by IOMMU and disable
device IOTLB.
Reported-by: Halil Pasic
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