Re: [PATCH] xen/arm: acpi: Support memory reserve configuration table

[Julien Grall <julien@xxxxxxx>]

Hi Leo,

On 25/08/2022 12:24, Leo Yan wrote:
> On Thu, Aug 25, 2022 at 10:07:18AM +0100, Julien Grall wrote:
>
> [...]
>
> > > In other words, let's assume the Dom0 kernel panic and its secondary
> > > kernel is launched by kexec, is it necessarily for the secondary
> > > kernel to reuse the primary kernel's RD pending page?
> > No.
> If the answer is no, then I think it's feasible to pass the same ACPI
> table or DT binding for virtual GICv3 from primary kernel to secondary
> kernel, then the second kernel can initialize the VGIC and allocate a
> new RD tables (and trap to Xen in EL2 to handle the new allocated RD
> tables).  How about you think for this?
I think that would work.

Cheers,

--
Julien Grall