Re: [Xen-devel] [PATCH v2 10/15] xen/xsm: flask: flask_copying_string is taking a XEN_GUEST_HANDLE as first param

[Julien Grall <julien.grall@xxxxxxxxxx>]

Hi Jan,

On 03/17/2014 03:39 PM, Jan Beulich wrote:
>>>> On 17.03.14 at 15:06, Julien Grall <julien.grall@xxxxxxxxxx> wrote:
>> Rather than x86, on ARM XEN_GUEST_HANDLE and XEN_GUEST_HANDLE_PARAM are
>> not compatible. This will result to a compilation failure on ARM when XSM
>> will be enabled.
>>
>> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
>> Acked-by: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
>> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
>> ---
>>  xen/xsm/flask/flask_op.c |    2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/xen/xsm/flask/flask_op.c b/xen/xsm/flask/flask_op.c
>> index 9dd9081..85a615b 100644
>> --- a/xen/xsm/flask/flask_op.c
>> +++ b/xen/xsm/flask/flask_op.c
>> @@ -76,7 +76,7 @@ static int domain_has_security(struct domain *d, u32 perms)
>>                          perms, NULL);
>>  }
>>  
>> -static int flask_copyin_string(XEN_GUEST_HANDLE_PARAM(char) u_buf, char 
>> **buf,
>> +static int flask_copyin_string(XEN_GUEST_HANDLE(char) u_buf, char **buf,
> 
> Wasn't the original intention for them to be converted when passed
> to functions, rather than getting passed verbatim?

I didn't find any place where the conversation is made. If we are going
to this solution, can you give me pointer on how to do the conversation?

Regards,

-- 
Julien Grall

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