On Thu, May 18, 2023 at 03:42:51PM +0200, Christoph Hellwig wrote:
> Remove the dangerous late initialization of xen-swiotlb in
> pci_xen_swiotlb_init_late and instead just always initialize
> xen-swiotlb in the boot code if CONFIG_XEN_PCIDEV_FRONTEND is enabled.
>
> Signed-off-by: Christoph
On 19/05/2023 1:41 pm, Christoph Hellwig wrote:
> On Fri, May 19, 2023 at 12:10:26PM +0200, Marek Marczykowski-Górecki wrote:
>> While I would say PCI passthrough is not very common for PV guests, can
>> the decision about xen-swiotlb be delayed until you can enumerate
>> xenstore to check if
Hi Christoph,
On Sat, 20 May 2023 08:21:03 +0200
Christoph Hellwig wrote:
> On Fri, May 19, 2023 at 02:58:57PM +0200, Christoph Hellwig wrote:
> > On Fri, May 19, 2023 at 01:49:46PM +0100, Andrew Cooper wrote:
> > > > The alternative would be to finally merge swiotlb-xen into swiotlb, in
> >
On Fri, 19 May 2023 12:10:26 +0200
Marek Marczykowski-Górecki wrote:
> On Fri, May 19, 2023 at 06:04:05AM +0200, Christoph Hellwig wrote:
> > On Thu, May 18, 2023 at 08:18:39PM +0200, Marek Marczykowski-Górecki wrote:
> >
> > > On Thu, May 18, 2023 at 03:42:51PM +0200, Christoph Hellwig
On Fri, May 19, 2023 at 06:04:05AM +0200, Christoph Hellwig wrote:
> On Thu, May 18, 2023 at 08:18:39PM +0200, Marek Marczykowski-Górecki wrote:
> > On Thu, May 18, 2023 at 03:42:51PM +0200, Christoph Hellwig wrote:
> > > Remove the dangerous late initialization of xen-swiotlb in
> > >
Thank you. I'll queue it up as a separate patch.
On 09.06.23 17:38, Juergen Gross wrote:
On 07.06.23 15:12, Christoph Hellwig wrote:
On Mon, May 22, 2023 at 10:37:09AM +0200, Juergen Gross wrote:
In normal cases PCI passthrough in PV guests requires to start the guest
with e820_host=1. So it should be rather easy to limit allocating the
64MB
On Fri, Jun 09, 2023 at 05:38:28PM +0200, Juergen Gross wrote:
>>> guest started with e820_host=1 even if no PCI passthrough was planned.
>>> But this should be rather rare (at least I hope so).
>>
>> So is this an ACK for the patch and can we go ahead with it?
>
> As long as above mentioned check
On 07.06.23 15:12, Christoph Hellwig wrote:
On Mon, May 22, 2023 at 10:37:09AM +0200, Juergen Gross wrote:
In normal cases PCI passthrough in PV guests requires to start the guest
with e820_host=1. So it should be rather easy to limit allocating the
64MB in PV guests to the cases where the
On Mon, May 22, 2023 at 10:37:09AM +0200, Juergen Gross wrote:
> In normal cases PCI passthrough in PV guests requires to start the guest
> with e820_host=1. So it should be rather easy to limit allocating the
> 64MB in PV guests to the cases where the memory map has non-RAM regions
> especially
On 19.05.23 12:10, Marek Marczykowski-Górecki wrote:
On Fri, May 19, 2023 at 06:04:05AM +0200, Christoph Hellwig wrote:
On Thu, May 18, 2023 at 08:18:39PM +0200, Marek Marczykowski-Górecki wrote:
On Thu, May 18, 2023 at 03:42:51PM +0200, Christoph Hellwig wrote:
Remove the dangerous late
On Fri, May 19, 2023 at 02:58:57PM +0200, Christoph Hellwig wrote:
> On Fri, May 19, 2023 at 01:49:46PM +0100, Andrew Cooper wrote:
> > > The alternative would be to finally merge swiotlb-xen into swiotlb, in
> > > which case we might be able to do this later. Let me see what I can
> > > do
On Fri, May 19, 2023 at 01:49:46PM +0100, Andrew Cooper wrote:
> > The alternative would be to finally merge swiotlb-xen into swiotlb, in
> > which case we might be able to do this later. Let me see what I can
> > do there.
>
> If that is an option, it would be great to reduce the
On Fri, May 19, 2023 at 12:10:26PM +0200, Marek Marczykowski-Górecki wrote:
> While I would say PCI passthrough is not very common for PV guests, can
> the decision about xen-swiotlb be delayed until you can enumerate
> xenstore to check if there are any PCI devices connected (and not
> allocate
On Thu, May 18, 2023 at 08:18:39PM +0200, Marek Marczykowski-Górecki wrote:
> On Thu, May 18, 2023 at 03:42:51PM +0200, Christoph Hellwig wrote:
> > Remove the dangerous late initialization of xen-swiotlb in
> > pci_xen_swiotlb_init_late and instead just always initialize
> > xen-swiotlb in the
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