From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Cooper <andrew.cooper3@citrix.com>
Subject: Re: [PATCH V13 1/7] xen/arm: p2m changes for mem_access
 support
Date: Thu, 12 Mar 2015 14:10:42 +0000
Message-ID: <55019E62.2000506@citrix.com>
References: <1425677073-13729-1-git-send-email-tklengyel@sec.in.tum.de>	<1425677073-13729-2-git-send-email-tklengyel@sec.in.tum.de>	<55018D24.9030603@linaro.org>
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To: Ian Campbell <ian.campbell@citrix.com>, Julien Grall <julien.grall@linaro.org>
Cc: wei.liu2@citrix.com, stefano.stabellini@eu.citrix.com, ian.jackson@eu.citrix.com, tim@xen.org, xen-devel@lists.xen.org, stefano.stabellini@citrix.com, jbeulich@suse.com, keir@xen.org, Tamas K Lengyel <tklengyel@sec.in.tum.de>
List-Id: xen-devel@lists.xenproject.org

On 12/03/15 13:56, Ian Campbell wrote:
> On Thu, 2015-03-12 at 12:57 +0000, Julien Grall wrote:
>> Hi Tamas,
>>
>> On 06/03/15 21:24, Tamas K Lengyel wrote:
>>> @@ -1090,6 +1098,8 @@ void p2m_teardown(struct domain *d)
>>>  
>>>      p2m_free_vmid(d);
>>>  
>>> +    radix_tree_destroy(&p2m->mem_access_settings, NULL);
>>> +
>>>      spin_unlock(&p2m->lock);
>>>  }
>>>  
>>> @@ -1115,6 +1125,10 @@ int p2m_init(struct domain *d)
>>>      p2m->max_mapped_gfn = 0;
>>>      p2m->lowest_mapped_gfn = ULONG_MAX;
>>>  
>>> +    p2m->default_access = p2m_access_rwx;
>>> +    p2m->mem_access_enabled = false;
>> false is defined for bool not bool_t.
>> Please use 0 here.
> I'm not convinced, false is false whatever you assign it to.

C specified that false expands to the constant 0, and true to the
constant 1.

They are fine for use with any integral type.

~Andrew