linux-kernel - Re: [PATCH v12 08/18] xen/pvh: Load GDT/GS in early PV bootup code for BSP.

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Message-ID: <52C69EB3.3030300@citrix.com>
Date:	Fri, 3 Jan 2014 11:27:47 +0000
From:	David Vrabel <david.vrabel@...rix.com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
CC:	<linux-kernel@...r.kernel.org>, <xen-devel@...ts.xenproject.org>,
	<boris.ostrovsky@...cle.com>, <stefano.stabellini@...citrix.com>,
	<mukesh.rathor@...cle.com>
Subject: Re: [PATCH v12 08/18] xen/pvh: Load GDT/GS in early PV bootup code
 for BSP.

On 02/01/14 18:24, Konrad Rzeszutek Wilk wrote:
>>> +		loadsegment(es, 0);
>>> +		loadsegment(ds, 0);
>>> +		loadsegment(fs, 0);
>>> +#else
>>> +		/* PVH: TODO Implement. */
>>> +		BUG();
>>> +#endif
>>> +		return;    <==============
>>> +	}
>>>  	pv_cpu_ops.write_gdt_entry = xen_write_gdt_entry_boot;
>>>  	pv_cpu_ops.load_gdt = xen_load_gdt_boot;
>>
>> If PVH uses native GDT why are these (and possibly other?) GDT ops needed?
> 
> They aren't. There is a 'return' there. I marked it for you with
> '<======'.

I missed that, in which case.

Reviewed-by: David Vrabel <david.vrabel@...rix.com>

David
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