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Re: [PATCH] microvm: turn off io reservations for pcie root ports
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From: |
Gerd Hoffmann |
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Subject: |
Re: [PATCH] microvm: turn off io reservations for pcie root ports |
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Date: |
Wed, 29 Jun 2022 09:10:23 +0200 |
On Mon, Jun 27, 2022 at 06:37:50PM -0400, Michael S. Tsirkin wrote:
> On Thu, Jun 09, 2022 at 09:28:38AM +0200, Gerd Hoffmann wrote:
> > On Wed, Jun 08, 2022 at 12:06:17PM -0400, Michael S. Tsirkin wrote:
> > > On Fri, Jun 03, 2022 at 10:59:20AM +0200, Gerd Hoffmann wrote:
> > > > The pcie host bridge has no io window on microvm,
> > > > so io reservations will not work.
> > > >
> > > > Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> > >
> > > I don't much like overriding user like this. We end up users
> > > setting it to silly values and then if we do want to
> > > support this things just break. Thoughts?
> >
> > Well, it just looked like the simplest way to tell the firmware that
> > io reservations are pointless. Do you have a better idea?
> >
> > take care,
> > Gerd
>
> Fail if user supplies values we can't support.
Well, it is the *default* value which doesn't work on microvm.
take care,
Gerd