Re: [PATCH] powerpc/pseries/iommu: LPAR panics when rebooted with a frozen PE

2024-04-21 Thread Michael Ellerman
Gaurav Batra writes: > You are right. I think, the "reboot" should be replaced with just "boot > up". If there are no other comments, or code changes, I can re-word the > commit message and submit for review. Yeah thanks. The change looks fine, just the change log needs a tweak. It's fine to

Re: [PATCH] powerpc/pseries/iommu: LPAR panics when rebooted with a frozen PE

2024-04-21 Thread Michael Ellerman
Michal Suchánek writes: > Hello, > > On Fri, Apr 19, 2024 at 04:12:46PM +1000, Michael Ellerman wrote: >> Gaurav Batra writes: >> > At the time of LPAR reboot, partition firmware provides Open Firmware >> > property ibm,dma-window for the PE. This property is provided on the PCI >> > bus the PE

Re: [PATCH] powerpc/pseries/iommu: LPAR panics when rebooted with a frozen PE

2024-04-19 Thread Gaurav Batra
You are right. I think, the "reboot" should be replaced with just "boot up". If there are no other comments, or code changes, I can re-word the commit message and submit for review. Thanks, Gaurav On 4/19/24 6:11 AM, Michal Suchánek wrote: Hello, On Fri, Apr 19, 2024 at 04:12:46PM +1000,

Re: [PATCH] powerpc/pseries/iommu: LPAR panics when rebooted with a frozen PE

2024-04-19 Thread Michal Suchánek
Hello, On Fri, Apr 19, 2024 at 04:12:46PM +1000, Michael Ellerman wrote: > Gaurav Batra writes: > > At the time of LPAR reboot, partition firmware provides Open Firmware > > property ibm,dma-window for the PE. This property is provided on the PCI > > bus the PE is attached to. > > AFAICS you're

Re: [PATCH] powerpc/pseries/iommu: LPAR panics when rebooted with a frozen PE

2024-04-19 Thread Michael Ellerman
Gaurav Batra writes: > At the time of LPAR reboot, partition firmware provides Open Firmware > property ibm,dma-window for the PE. This property is provided on the PCI > bus the PE is attached to. AFAICS you're actually describing a bug that happens during boot *up*? Describing it as "reboot"

[PATCH] powerpc/pseries/iommu: LPAR panics when rebooted with a frozen PE

2024-04-16 Thread Gaurav Batra
At the time of LPAR reboot, partition firmware provides Open Firmware property ibm,dma-window for the PE. This property is provided on the PCI bus the PE is attached to. There are execptions where the partition firmware might not provide this property for the PE at the time of LPAR reboot. One of