From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?ISO-8859-1?Q?Roger_Pau_Monn=E9?= <roger.pau@citrix.com>
Subject: Re: [PATCH] xen: move PIRQ EOI map fields to arch_domain
Date: Tue, 8 Apr 2014 14:16:48 +0200
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To: Jan Beulich <JBeulich@suse.com>
Cc: xen-devel@lists.xenproject.org, Keir Fraser <keir@xen.org>
List-Id: xen-devel@lists.xenproject.org

On 08/04/14 13:33, Jan Beulich wrote:
>>>> On 08.04.14 at 12:33, <roger.pau@citrix.com> wrote:
>> @@ -354,7 +353,7 @@ ret_t do_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg)
>>          }
>>          mfn = page_to_mfn(page);
>>  
>> -        if ( cmpxchg(&v->domain->arch.pv_domain.pirq_eoi_map_mfn,
>> +        if ( cmpxchg(&v->domain->arch.pirq_eoi_map_mfn,
> 
> In order to get here you also need to modify hvm_physdev_op().

This is on top of Mukesh PVH Dom0 v8 series (as stated on the 
description), which has the following in hvm_physdev_op:

static long hvm_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg)
{
    switch ( cmd )
    {
    default:
        if ( !is_pvh_vcpu(current) || !is_hardware_domain(current->domain) )
            return -ENOSYS;
        /* fall through */
    case PHYSDEVOP_map_pirq:
    case PHYSDEVOP_unmap_pirq:
    case PHYSDEVOP_eoi:
    case PHYSDEVOP_irq_status_query:
    case PHYSDEVOP_get_free_pirq:
        return do_physdev_op(cmd, arg);
    }
}

Thus allowing PVH Dom0 to use any PHYSDEVOP_*

Roger.