Hi Ashish, non-technical comment: in the subject, you might want to
s/SWIOTBL/SWIOTLB .
cheers,
Guilherme
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On Tue, Nov 17, 2020 at 07:04:59PM +, Kalra, Ashish wrote:
> Hello Konrad,
>
> Actually I didn’t get that, do you mean you are taking 1G and <=4G cases out
> of the patch and only going to apply the >4G case as part of the patch ?
That was the thought, but now I am wondering how TDX is
Hello Konrad,
Actually I didn’t get that, do you mean you are taking 1G and <=4G cases out of
the patch and only going to apply the >4G case as part of the patch ?
Thanks,
Ashish
> On Nov 17, 2020, at 11:38 AM, Kalra, Ashish wrote:
>
> Hello Konrad,
>
>> On Tue, Nov 17, 2020 at
Hello Konrad,
On Tue, Nov 17, 2020 at 12:00:03PM -0500, Konrad Rzeszutek Wilk wrote:
> .snip..
> > > > > Lets break this down:
> > > > >
> > > > > How does the performance improve for one single device if you
> > > > > increase the SWIOTLB?
> > > > > Is there a specific device/driver that you
.snip..
> > > > Lets break this down:
> > > >
> > > > How does the performance improve for one single device if you increase
> > > > the SWIOTLB?
> > > > Is there a specific device/driver that you can talk about that improve
> > > > with this patch?
> > > >
> > > >
> > >
> > > Yes, these are
On Fri, Nov 13, 2020 at 04:19:25PM -0500, Konrad Rzeszutek Wilk wrote:
> On Thu, Nov 05, 2020 at 09:20:45PM +, Ashish Kalra wrote:
> > On Thu, Nov 05, 2020 at 03:20:07PM -0500, Konrad Rzeszutek Wilk wrote:
> > > On Thu, Nov 05, 2020 at 07:38:28PM +, Ashish Kalra wrote:
> > > > On Thu, Nov
Hello Konrad,
On Fri, Nov 13, 2020 at 04:19:25PM -0500, Konrad Rzeszutek Wilk wrote:
> On Thu, Nov 05, 2020 at 09:20:45PM +, Ashish Kalra wrote:
> > On Thu, Nov 05, 2020 at 03:20:07PM -0500, Konrad Rzeszutek Wilk wrote:
> > > On Thu, Nov 05, 2020 at 07:38:28PM +, Ashish Kalra wrote:
> > >
On Thu, Nov 05, 2020 at 09:20:45PM +, Ashish Kalra wrote:
> On Thu, Nov 05, 2020 at 03:20:07PM -0500, Konrad Rzeszutek Wilk wrote:
> > On Thu, Nov 05, 2020 at 07:38:28PM +, Ashish Kalra wrote:
> > > On Thu, Nov 05, 2020 at 02:06:49PM -0500, Konrad Rzeszutek Wilk wrote:
> > > > .
> > > > >
On Thu, Nov 05, 2020 at 02:06:49PM -0500, Konrad Rzeszutek Wilk wrote:
> .
> > > Right, so I am wondering if we can do this better.
> > >
> > > That is you are never going to get any 32-bit devices with SEV right? That
> > > is there is nothing that bounds you to always use the memory below 4GB?
On Thu, Nov 05, 2020 at 03:20:07PM -0500, Konrad Rzeszutek Wilk wrote:
> On Thu, Nov 05, 2020 at 07:38:28PM +, Ashish Kalra wrote:
> > On Thu, Nov 05, 2020 at 02:06:49PM -0500, Konrad Rzeszutek Wilk wrote:
> > > .
> > > > > Right, so I am wondering if we can do this better.
> > > > >
> > > >
On Thu, Nov 05, 2020 at 07:38:28PM +, Ashish Kalra wrote:
> On Thu, Nov 05, 2020 at 02:06:49PM -0500, Konrad Rzeszutek Wilk wrote:
> > .
> > > > Right, so I am wondering if we can do this better.
> > > >
> > > > That is you are never going to get any 32-bit devices with SEV right?
> > > >
On Thu, Nov 05, 2020 at 02:06:49PM -0500, Konrad Rzeszutek Wilk wrote:
> .
> > > Right, so I am wondering if we can do this better.
> > >
> > > That is you are never going to get any 32-bit devices with SEV right? That
> > > is there is nothing that bounds you to always use the memory below 4GB?
.
> > Right, so I am wondering if we can do this better.
> >
> > That is you are never going to get any 32-bit devices with SEV right? That
> > is there is nothing that bounds you to always use the memory below 4GB?
> >
>
> We do support 32-bit PCIe passthrough devices with SEV.
Ewww.. Which
Hello Konrad,
On Thu, Nov 05, 2020 at 12:43:17PM -0500, Konrad Rzeszutek Wilk wrote:
> On Wed, Nov 04, 2020 at 10:39:13PM +, Ashish Kalra wrote:
> > Hello Konrad,
> >
> > On Wed, Nov 04, 2020 at 05:14:52PM -0500, Konrad Rzeszutek Wilk wrote:
> > > On Wed, Nov 04, 2020 at 10:08:04PM +,
On Wed, Nov 04, 2020 at 10:39:13PM +, Ashish Kalra wrote:
> Hello Konrad,
>
> On Wed, Nov 04, 2020 at 05:14:52PM -0500, Konrad Rzeszutek Wilk wrote:
> > On Wed, Nov 04, 2020 at 10:08:04PM +, Ashish Kalra wrote:
> > > From: Ashish Kalra
> > >
> > > For SEV, all DMA to and from guest has
Hello Konrad,
On Wed, Nov 04, 2020 at 05:14:52PM -0500, Konrad Rzeszutek Wilk wrote:
> On Wed, Nov 04, 2020 at 10:08:04PM +, Ashish Kalra wrote:
> > From: Ashish Kalra
> >
> > For SEV, all DMA to and from guest has to use shared
> > (un-encrypted) pages. SEV uses SWIOTLB to make this
> >
On Thursday, November 5, 2020, Ashish Kalra wrote:
> From: Ashish Kalra
>
> For SEV, all DMA to and from guest has to use shared
> (un-encrypted) pages. SEV uses SWIOTLB to make this
> happen without requiring changes to device drivers.
> However, depending on workload being run, the default
>
On Wed, Nov 04, 2020 at 10:08:04PM +, Ashish Kalra wrote:
> From: Ashish Kalra
>
> For SEV, all DMA to and from guest has to use shared
> (un-encrypted) pages. SEV uses SWIOTLB to make this
> happen without requiring changes to device drivers.
> However, depending on workload being run, the
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