Re: [patch V2 00/46] x86, PCI, XEN, genirq ...: Prepare for device MSI

From: Boqun Feng
Date: Tue Sep 01 2020 - 05:06:17 EST


Hi Thomas,

On Wed, Aug 26, 2020 at 01:16:28PM +0200, Thomas Gleixner wrote:
[...]
>
> The whole lot is also available from git:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git device-msi
>
> This has been tested on Intel/AMD/KVM but lacks testing on:
>
> - HYPERV (-ENODEV)

FWIW, I did a build and boot test in a hyperv guest with your
development branch, the latest commit is 71cbf478eb6f ("irqchip: Add
IMS (Interrupt Message Storm) driver - NOT FOR MERGING"). And everything
seemed working fine.

If you want me to set/unset a particular CONFIG option or run some
command for testing purposes, please let me know ;-)

Regards,
Bqoun

> - VMD enabled systems (-ENODEV)
> - XEN (-ENOCLUE)
> - IMS (-ENODEV)
>
> - Any non-X86 code which might depend on the broken compose MSI message
> logic. Marc excpects not much fallout, but agrees that we need to fix
> it anyway.
>
> #1 - #3 should be applied unconditionally for obvious reasons
> #4 - #6 are wortwhile cleanups which should be done independent of device MSI
>
> #7 - #8 look promising to cleanup the platform MSI implementation
> independent of #8, but I neither had cycles nor the stomach to
> tackle that.
>
> #9 is obviously just for the folks interested in IMS
>
> Thanks,
>
> tglx