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

[Ian Campbell <ian.campbell@citrix.com>]

On Fri, 2015-02-20 at 15:56 +0530, Vijay Kilari wrote:
> On Fri, Feb 20, 2015 at 3:44 PM, Ian Campbell <ian.campbell@citrix.com> 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.

Is ThunderX going to be available to purchase before the 4.6 release in
the summer?

> 
> >
> > 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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