Re: [Xen-devel] [PATCH v3 00/15] xen/arm: Bug fixes for the vGIC

[Vijay Kilari <vijay.kilari@xxxxxxxxx>]

On Fri, Feb 20, 2015 at 3:44 PM, Ian Campbell <ian.campbell@xxxxxxxxxx> wrote:
> On Thu, 2015-02-19 at 18:01 +0000, Julien Grall wrote:
>> Based on the discussion, what about waiting until someone complain about
>> GICv3 support on Xen 4.5?
>
> That sounds like a reasonable compromise.

If Xen 4.5 claims GICv3 support, then it is better to backport vgic-v3 patches.
May be ThunderX is the only platform out there with GICv3 support.
At some point of time we might require ThunderX support on 4.5 release.
If you are going to backport only on-demand then it should be for now.

>
> My potential backports list now contains:
>
> xen/arm: Bug fixes for the vGIC
> -> 15 patch series, many of which are tagged for backport.
>
>  -> Julien: The list of GICv2 patches candidate for backporting are: #10, #11,
>     #12, #13.
> fed3569 xen/arm: vgic-v2: Correctly set GICD_TYPER.CPUNumber
> 1fefa55 xen/arm: vgic-v2: Correctly handle RAZ/WI registers
> 26ea82f xen/arm: vgic-v2: Take the lock when writing into GICD_CTLR
> 10af92d xen/arm: vgic-v2: GICD_I{S, C}PENDR* are only word-accessible
>
>  -> Julien: Based on the discussion, what about waiting until someone 
> complain about
>     GICv3 support on Xen 4.5?
> 8206d05 xen/arm: vgic-v3: Correctly set GICD_TYPER.IDbits
> 834551b xen/arm: vgic-v3: Correctly set GICD_TYPER.CPUNumber
> 5e6958a xen/arm: vgic-v3: Correctly handle RAZ/WI registers
> cfef895 xen/arm: vgic-v3: Correctly implement read into GICR_NSACR
> acf65e5 xen/arm: vgic-v3: Emulate correctly the re-distributor
>
>  -> Not tagged for backport:
> 8d91d64 xen/arm: vgic-v3: Correctly handle GICD_CTLR
> 4636e9f xen/arm: vgic-v3: Set stride during domain initialization
> 196f4ef xen/arm: vgic-v3: Use a struct to describe contiguous rdist regions
> b697071 xen/arm: vgic-v3: Clarify which distributor is used in the common 
> emulation
> a41d809 xen/arm: vgic: Drop iactive, ipend, pendsgi field
> 98e7c60 xen/arm: gic-v3: Update some comments in the code
>
> Does that tally with what you intended?
>
> Ian.
>
>
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