On 2025/2/14 16:18, Oleksii Kurochko wrote: > > On 2/14/25 8:35 AM, Jan Beulich wrote: >> On 14.02.2025 04:32, Chen, Jiqian wrote: >>> On 2025/2/11 17:21, Roger Pau Monné wrote: >>>> On Tue, Feb 11, 2025 at 10:22:57AM +0800, Jiqian Chen wrote: >>>>> Some devices, like AMDGPU, support resizable bar capability, >>>>> but vpci of Xen doesn't support this feature, so they fail >>>>> to resize bars and then cause probing failure. >>>>> >>>>> According to PCIe spec, each bar that supports resizing has >>>>> two registers, PCI_REBAR_CAP and PCI_REBAR_CTRL. So, add >>>>> handlers to support resizing the size of BARs. >>>>> >>>>> Note that Xen will only trap PCI_REBAR_CTRL, as PCI_REBAR_CAP >>>>> is read-only register and the hardware domain already gets >>>>> access to it without needing any setup. >>>>> >>>>> Signed-off-by: Jiqian Chen <jiqian.c...@amd.com> >>>> Reviewed-by: Roger Pau Monné <roger....@citrix.com> >>> Thank you! >>> May I know whether this can be merged in Xen version 4.20? > > It would be better to merge it after the Xen 4.20 release. > (It will happen in the next 2 weeks). Got it. Thank you for reply.
> > Thanks. > > ~ Oleksii > >> That's a question Oleksii would have to answer. My take is that it's (far) >> too late in the cycle for a feature addition. -- Best regards, Jiqian Chen.
