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Message-ID: <1382633034.22417.121.camel@hastur.hellion.org.uk> Date: Thu, 24 Oct 2013 17:43:54 +0100 From: Ian Campbell <ian.campbell@...rix.com> To: Julien Grall <julien.grall@...aro.org> CC: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>, <linux-kernel@...r.kernel.org>, <xen-devel@...ts.xenproject.org> Subject: Re: [Xen-devel] [PATCH] xen/hvc-console: Make it work with HVM guests. On Thu, 2013-10-24 at 17:30 +0100, Julien Grall wrote: > I'm sure the solution "move xen call earlier" will come up in few mails, > so there was a discussion for swiotlb few weeks ago > (https://lkml.org/lkml/2013/8/29/609). And the final decision was to > avoid specific Xen call in arch_setup. It wasn't so much a hard reject as a preference based on the need presented at the time. Perhaps a generic DT driven mechanism to detect hypervisors, called early, would be more acceptable? > Stefano, Ian, any opinion? The ifdef approach is a bit ugly, but if the other option doesn't work out I suppose we can live with it. But stepping back how/why is this function called on x86 when not running under Xen? Wouldn't the use have to be using console=hvc or earlyprintk=xen or something -- which strikes me as user error... IOW can we not just nuke the check Ian. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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