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Date: Mon, 5 Jan 2015 10:35:04 +0000 From: David Vrabel <david.vrabel@...rix.com> To: Jan Beulich <JBeulich@...e.com>, Boris Ostrovsky <boris.ostrovsky@...cle.com>, Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> CC: xen-devel <xen-devel@...ts.xenproject.org>, <linux-kernel@...r.kernel.org> Subject: Re: xen/x86: properly retrieve NMI reason On 19/12/14 16:16, Jan Beulich wrote: > Using the native code here can't work properly, as the hypervisor would > normally have cleared the two reason bits by the time Dom0 gets to see > the NMI (if passed to it at all). There's a shared info field for this, > and there's an existing hook to use - just fit the two together. Note > that the hook can (and should) be used irrespective of whether being in > Dom0, as accessing port 0x61 in a DomU would be even worse, while the > shared info field would just hold zero all the time. > > Signed-off-by: Jan Beulich <jbeulich@...e.com> This doesn't build. In file included from /local/davidvr/work/k.org/tip/arch/x86/xen/enlighten.c:43:0: /local/davidvr/work/k.org/tip/include/xen/interface/nmi.h:44:1: warning: data definition has no type or storage class [enabled by default] /local/davidvr/work/k.org/tip/include/xen/interface/nmi.h:44:1: error: type defaults to ‘int’ in declaration of ‘DEFINE_XEN_GUEST_HANDLE’ [-Werror=implicit-int] cc1: some warnings being treated as errors David -- 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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