Re: [Xen-devel] [PATCH] xen/arm: gic-v3: Implement correctly the callback send_SGI

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Sat, 2015-05-09 at 21:13 +0800, Chen Baozi wrote:
> On Fri, May 08, 2015 at 06:01:12PM +0100, Julien Grall wrote:
> > Currently, the GICv3 driver is only able to send an SGI when the cpumask
> > is provided. Although with the modes SGI_TARGET_OTHERS and SGI_TARGET_SELF,
> > no cpumask is provided. Any usage of those modes will crash the hypersivor.
> > 
> > Rename gicv3_send_sgi to gicv3_send_sgi_list and implement the
> > different modes:
> >     - SGI_TARGET_OTHERS: Set the Interrupt Routing Mode (bit 40) to 1
> >     (see Table 4 on Section 4.2.6 PRD03-GENC-010745 24.0)
> >     - SGI_TARGET_SELF: Unlike GICv2, the GICv3 SGI registers don't
> >     provide a specific field. So use gicv3_send_sgi_list and pass
> >     the cpumask of the current CPU
> >     - SGI_TARGET_LIST: Directly call gicv3_send_sgi_list with the given
> >     cpumask
> > 
> > Also, use WRITE_SYSREG64 to write into ICC_SGI1R_EL1 the access is
> > 64-bit on all the architectures.
> > 
> > Reported-by: Chen Baozi <baozich@xxxxxxxxx>
> > Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
> Tested-by: Chen Baozi <baozich@xxxxxxxxx>

Acked + applied, thanks.



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