On Mon, 2019-07-15 at 19:03 -0300, Thiago Jung Bauermann wrote:
> > > Indeed. The idea is that QEMU can offer the flag, old guests can
> > > reject
> > > it (or even new guests can reject it, if they decide not to
> > > convert into
> > > secure VMs) and the feature negotiation will succeed with
Michael S. Tsirkin writes:
> On Mon, Jul 15, 2019 at 07:03:03PM -0300, Thiago Jung Bauermann wrote:
>>
>> Michael S. Tsirkin writes:
>>
>> > On Mon, Jul 15, 2019 at 05:29:06PM -0300, Thiago Jung Bauermann wrote:
>> >>
>> >> Michael S. Tsirkin writes:
>> >>
>> >> > On Sun, Jul 14, 2019 at
On Mon, Jul 15, 2019 at 07:03:03PM -0300, Thiago Jung Bauermann wrote:
>
> Michael S. Tsirkin writes:
>
> > On Mon, Jul 15, 2019 at 05:29:06PM -0300, Thiago Jung Bauermann wrote:
> >>
> >> Michael S. Tsirkin writes:
> >>
> >> > On Sun, Jul 14, 2019 at 02:51:18AM -0300, Thiago Jung Bauermann
Michael S. Tsirkin writes:
> On Mon, Jul 15, 2019 at 05:29:06PM -0300, Thiago Jung Bauermann wrote:
>>
>> Michael S. Tsirkin writes:
>>
>> > On Sun, Jul 14, 2019 at 02:51:18AM -0300, Thiago Jung Bauermann wrote:
>> >>
>> >>
>> >> Michael S. Tsirkin writes:
>> >>
>> >> > So this is what I
On Mon, Jul 15, 2019 at 05:29:06PM -0300, Thiago Jung Bauermann wrote:
>
> Michael S. Tsirkin writes:
>
> > On Sun, Jul 14, 2019 at 02:51:18AM -0300, Thiago Jung Bauermann wrote:
> >>
> >>
> >> Michael S. Tsirkin writes:
> >>
> >> > So this is what I would call this option:
> >> >
> >> >
Michael S. Tsirkin writes:
> On Sun, Jul 14, 2019 at 02:51:18AM -0300, Thiago Jung Bauermann wrote:
>>
>>
>> Michael S. Tsirkin writes:
>>
>> > So this is what I would call this option:
>> >
>> > VIRTIO_F_ACCESS_PLATFORM_IDENTITY_ADDRESS
>> >
>> > and the explanation should state that all
On Sun, Jul 14, 2019 at 02:51:18AM -0300, Thiago Jung Bauermann wrote:
>
>
> Michael S. Tsirkin writes:
>
> > On Thu, Jun 27, 2019 at 10:58:40PM -0300, Thiago Jung Bauermann wrote:
> >>
> >> Michael S. Tsirkin writes:
> >>
> >> > On Mon, Jun 03, 2019 at 10:13:59PM -0300, Thiago Jung Bauermann
Michael S. Tsirkin writes:
> On Thu, Jun 27, 2019 at 10:58:40PM -0300, Thiago Jung Bauermann wrote:
>>
>> Michael S. Tsirkin writes:
>>
>> > On Mon, Jun 03, 2019 at 10:13:59PM -0300, Thiago Jung Bauermann wrote:
>> >>
>> >>
>> >> Michael S. Tsirkin writes:
>> >>
>> >> > On Wed, Apr 17, 2019
On Thu, Jun 27, 2019 at 10:58:40PM -0300, Thiago Jung Bauermann wrote:
>
> Michael S. Tsirkin writes:
>
> > On Mon, Jun 03, 2019 at 10:13:59PM -0300, Thiago Jung Bauermann wrote:
> >>
> >>
> >> Michael S. Tsirkin writes:
> >>
> >> > On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung
Michael S. Tsirkin writes:
> On Mon, Jun 03, 2019 at 10:13:59PM -0300, Thiago Jung Bauermann wrote:
>>
>>
>> Michael S. Tsirkin writes:
>>
>> > On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann wrote:
>> >> I rephrased it in terms of address translation. What do you think of
>>
On Mon, Jun 03, 2019 at 10:13:59PM -0300, Thiago Jung Bauermann wrote:
>
>
> Michael S. Tsirkin writes:
>
> > On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann wrote:
> >> I rephrased it in terms of address translation. What do you think of
> >> this version? The flag name is
Michael S. Tsirkin writes:
> On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann wrote:
>> I rephrased it in terms of address translation. What do you think of
>> this version? The flag name is slightly different too:
>>
>>
>> VIRTIO_F_ACCESS_PLATFORM_NO_TRANSLATION This feature
On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann wrote:
> I rephrased it in terms of address translation. What do you think of
> this version? The flag name is slightly different too:
>
>
> VIRTIO_F_ACCESS_PLATFORM_NO_TRANSLATION This feature has the same
> meaning as
On Fri, Apr 26, 2019 at 08:56:43PM -0300, Thiago Jung Bauermann wrote:
>
> Michael S. Tsirkin writes:
>
> > On Wed, Apr 24, 2019 at 10:01:56PM -0300, Thiago Jung Bauermann wrote:
> >>
> >> Michael S. Tsirkin writes:
> >>
> >> > On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann
Michael S. Tsirkin writes:
> On Wed, Apr 24, 2019 at 10:01:56PM -0300, Thiago Jung Bauermann wrote:
>>
>> Michael S. Tsirkin writes:
>>
>> > On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann wrote:
>> >>
>> >> Michael S. Tsirkin writes:
>> >>
>> >> > On Thu, Mar 21, 2019 at
On Wed, Apr 24, 2019 at 10:01:56PM -0300, Thiago Jung Bauermann wrote:
>
> Michael S. Tsirkin writes:
>
> > On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann wrote:
> >>
> >> Michael S. Tsirkin writes:
> >>
> >> > On Thu, Mar 21, 2019 at 09:05:04PM -0300, Thiago Jung Bauermann
Michael S. Tsirkin writes:
> On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann wrote:
>>
>> Michael S. Tsirkin writes:
>>
>> > On Thu, Mar 21, 2019 at 09:05:04PM -0300, Thiago Jung Bauermann wrote:
>> >>
>> >> Michael S. Tsirkin writes:
>> >>
>> >> > On Wed, Mar 20, 2019 at
On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann wrote:
>
> Michael S. Tsirkin writes:
>
> > On Thu, Mar 21, 2019 at 09:05:04PM -0300, Thiago Jung Bauermann wrote:
> >>
> >> Michael S. Tsirkin writes:
> >>
> >> > On Wed, Mar 20, 2019 at 01:13:41PM -0300, Thiago Jung Bauermann
David Gibson writes:
> On Sat, Mar 23, 2019 at 05:01:35PM -0400, Michael S. Tsirkin wrote:
>> On Thu, Mar 21, 2019 at 09:05:04PM -0300, Thiago Jung Bauermann wrote:
>> > Michael S. Tsirkin writes:
> [snip]
>> > >> > Is there any justification to doing that beyond someone putting
>> > >> > out
Michael S. Tsirkin writes:
> On Thu, Mar 21, 2019 at 09:05:04PM -0300, Thiago Jung Bauermann wrote:
>>
>> Michael S. Tsirkin writes:
>>
>> > On Wed, Mar 20, 2019 at 01:13:41PM -0300, Thiago Jung Bauermann wrote:
>> >> >From what I understand of the ACCESS_PLATFORM definition, the host will
>>
On Wed, Jan 30, 2019 at 08:44:27AM +0100, Christoph Hellwig wrote:
> On Tue, Jan 29, 2019 at 09:36:08PM -0500, Michael S. Tsirkin wrote:
> > This has been discussed ad nauseum. virtio is all about compatibility.
> > Losing a couple of lines of code isn't worth breaking working setups.
> > People
On Sat, Mar 23, 2019 at 05:01:35PM -0400, Michael S. Tsirkin wrote:
> On Thu, Mar 21, 2019 at 09:05:04PM -0300, Thiago Jung Bauermann wrote:
> > Michael S. Tsirkin writes:
[snip]
> > >> > Is there any justification to doing that beyond someone putting
> > >> > out slow code in the past?
> > >>
>
On Thu, Mar 21, 2019 at 09:05:04PM -0300, Thiago Jung Bauermann wrote:
>
> Michael S. Tsirkin writes:
>
> > On Wed, Mar 20, 2019 at 01:13:41PM -0300, Thiago Jung Bauermann wrote:
> >> >> Another way of looking at this issue which also explains our reluctance
> >> >> is that the only difference
Michael S. Tsirkin writes:
> On Wed, Mar 20, 2019 at 01:13:41PM -0300, Thiago Jung Bauermann wrote:
>> >> Another way of looking at this issue which also explains our reluctance
>> >> is that the only difference between a secure guest and a regular guest
>> >> (at least regarding virtio) is
On Wed, Mar 20, 2019 at 01:13:41PM -0300, Thiago Jung Bauermann wrote:
> >> Another way of looking at this issue which also explains our reluctance
> >> is that the only difference between a secure guest and a regular guest
> >> (at least regarding virtio) is that the former uses swiotlb while the
Hello Michael,
Sorry for the delay in responding. We had some internal discussions on
this.
Michael S. Tsirkin writes:
> On Mon, Feb 04, 2019 at 04:14:20PM -0200, Thiago Jung Bauermann wrote:
>>
>> Hello Michael,
>>
>> Michael S. Tsirkin writes:
>>
>> > On Tue, Jan 29, 2019 at 03:42:44PM
On Tue, Feb 05, 2019 at 08:24:07AM +0100, Christoph Hellwig wrote:
> On Mon, Feb 04, 2019 at 04:38:21PM -0500, Michael S. Tsirkin wrote:
> > It was designed to make, when set, as many guests as we can work
> > correctly, and it seems to be successful in doing exactly that.
> >
> > Unfortunately
On Mon, Feb 04, 2019 at 04:38:21PM -0500, Michael S. Tsirkin wrote:
> It was designed to make, when set, as many guests as we can work
> correctly, and it seems to be successful in doing exactly that.
>
> Unfortunately there could be legacy guests that do work correctly but
> become slow. Whether
On Mon, Feb 04, 2019 at 04:15:41PM -0200, Thiago Jung Bauermann wrote:
>
> Christoph Hellwig writes:
>
> > On Tue, Jan 29, 2019 at 09:36:08PM -0500, Michael S. Tsirkin wrote:
> >> This has been discussed ad nauseum. virtio is all about compatibility.
> >> Losing a couple of lines of code isn't
>
> >> > Of course, I also have patches (soon to be posted as RFC) which hook up
> >> > to the powerpc secure guest support code.
> >> >
> >> > What do you think?
> >> >
> >> > From d0629a36a75c678b4a72b853f8f7f8c17eedd6b3 Mon Sep 17 00:
Christoph Hellwig writes:
> On Tue, Jan 29, 2019 at 09:36:08PM -0500, Michael S. Tsirkin wrote:
>> This has been discussed ad nauseum. virtio is all about compatibility.
>> Losing a couple of lines of code isn't worth breaking working setups.
>> People that want "just use DMA API no tricks"
think?
>> >
>> > From d0629a36a75c678b4a72b853f8f7f8c17eedd6b3 Mon Sep 17 00:00:00 2001
>> > From: Thiago Jung Bauermann
>> > Date: Thu, 24 Jan 2019 22:08:02 -0200
>> > Subject: [RFC PATCH] virtio_ring: Use DMA API if guest memory is encrypted
&
On Tue, Jan 29, 2019 at 09:36:08PM -0500, Michael S. Tsirkin wrote:
> This has been discussed ad nauseum. virtio is all about compatibility.
> Losing a couple of lines of code isn't worth breaking working setups.
> People that want "just use DMA API no tricks" now have the option.
> Setting a flag
> > > >
> > > > > > Of course, I also have patches (soon to be posted as RFC) which
> > > > > > hook up
> > > > > > to the powerpc secure guest support code.
> > > > > >
> > > > > > What do you thi
Jan 2019 22:08:02 -0200
Subject: [RFC PATCH] virtio_ring: Use DMA API if guest memory is encrypted
The host can't access the guest memory when it's encrypted, so using
regular memory pages for the ring isn't an option. Go through the DMA API.
Signed-off-by: Thiago Jung Bauermann
Well I think
f course, I also have patches (soon to be posted as RFC) which hook up
> > > > to the powerpc secure guest support code.
> > > >
> > > > What do you think?
> > > >
> > > > From d0629a36a75c678b4a72b853f8f7f8c17eedd6b3 Mon Sep 17 00:00:00
) which hook up
to the powerpc secure guest support code.
What do you think?
From d0629a36a75c678b4a72b853f8f7f8c17eedd6b3 Mon Sep 17 00:00:00 2001
From: Thiago Jung Bauermann
Date: Thu, 24 Jan 2019 22:08:02 -0200
Subject: [RFC PATCH] virtio_ring: Use DMA API if guest memory is encrypted
The host
t; >
> > Of course, I also have patches (soon to be posted as RFC) which hook up
> > to the powerpc secure guest support code.
> >
> > What do you think?
> >
> > From d0629a36a75c678b4a72b853f8f7f8c17eedd6b3 Mon Sep 17 00:00:00 2001
> > From: Thiago
ode.
>
> What do you think?
>
> From d0629a36a75c678b4a72b853f8f7f8c17eedd6b3 Mon Sep 17 00:00:00 2001
> From: Thiago Jung Bauermann
> Date: Thu, 24 Jan 2019 22:08:02 -0200
> Subject: [RFC PATCH] virtio_ring: Use DMA API if guest memory is encrypted
>
> The host can't access the gu
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