linux-kernel - Re: [PATCH v4 02/24] xen/arm: hypercalls

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Message-ID: <505339C5.60907@arm.com>
Date:	Fri, 14 Sep 2012 15:05:57 +0100
From:	Marc Zyngier <marc.zyngier@....com>
To:	Stefano Stabellini <stefano.stabellini@...citrix.com>
CC:	"arnd@...db.de" <arnd@...db.de>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"linaro-dev@...ts.linaro.org" <linaro-dev@...ts.linaro.org>,
	Ian Campbell <Ian.Campbell@...rix.com>,
	"konrad.wilk@...cle.com" <konrad.wilk@...cle.com>,
	Catalin Marinas <Catalin.Marinas@....com>,
	"Tim (Xen.org)" <tim@....org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Dave Martin <dave.martin@...aro.org>
Subject: Re: [PATCH v4 02/24] xen/arm: hypercalls

On 14/09/12 15:02, Stefano Stabellini wrote:
> On Fri, 14 Sep 2012, Marc Zyngier wrote:
>>> +/* HVC 0xEA1 */
>>> +#ifdef CONFIG_THUMB2_KERNEL
>>> +#define xen_hvc .word 0xf7e08ea1
>>> +#else
>>> +#define xen_hvc .word 0xe140ea71
>>> +#endif
>>
>> You should consider using Dave Martin's opcode injection series for
>> that. The patches are already in Russell's for-next branch.
> 
> I am all for using Dave's patches and I have even already sent a patch
> to change the wrappers to use __HVC:
> 
> http://marc.info/?l=linux-kernel&m=134513261623427&w=2
> 
> I have only temporarely dropped it, only to reduce the amount of
> external dependencies of this series. It already depends on Konrad's
> stable/for-linus-3.7, so I would rather send this patch out later on its
> own...

Fair enough. As long as there's a plan to fix this soon enough, it
should be alright.

	M.
-- 
Jazz is not dead. It just smells funny...

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