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Re: [Xen-devel] [PATCH] ignore writes to GICD_ICACTIVER ... GICD_ICACTIVERN



>>> On 03.12.15 at 12:41, <julien.grall@xxxxxxxxxx> wrote:
> On 03/12/15 11:41, Jan Beulich wrote:
>>>>> On 03.12.15 at 12:02, <stefano.stabellini@xxxxxxxxxxxxx> wrote:
>>> --- a/xen/arch/arm/vgic-v2.c
>>> +++ b/xen/arch/arm/vgic-v2.c
>>> @@ -315,11 +315,10 @@ static int vgic_v2_distr_mmio_write(struct vcpu *v, 
> mmio_info_t *info)
>>>          return 0;
>>>  
>>>      case GICD_ICACTIVER ... GICD_ICACTIVERN:
>>> -        if ( dabt.size != DABT_WORD ) goto bad_width;
>>> -        printk(XENLOG_G_ERR
>>> +        gdprintk(XENLOG_DEBUG,
>>>                 "%pv: vGICD: unhandled word write %#"PRIregister" to 
> ICACTIVER%d\n",
>>>                 v, *r, gicd_reg - GICD_ICACTIVER);
>> 
>> Do you really mean to print two domain/vcpu ID pairs here, the more
>> that I suppose v == current?
> 
> v is not necessarily the current vCPU.

Okay, that's different then from how MMIO intercepts work on x86.

Jan


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