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Date: Sun, 31 Jan 2010 18:02:38 +0000 From: "Jan Beulich" <jbeulich@...ell.com> To: <hpa@...or.com> Cc: <mingo@...e.hu>, <jeremy@...p.org>, <tglx@...utronix.de>, <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 0/3] x86: enlightenment for ticket spinlocks >>> "H. Peter Anvin" 01/31/10 2:42 AM >>> >+ * EBX-EDX: "XenVMMXenVMM" signature, allowing positive identification >+ * of a Xen host. >+ */ >+#define XEN_CPUID_SIGNATURE_EBX 0x566e6558 /* "XenV" */ >+#define XEN_CPUID_SIGNATURE_ECX 0x65584d4d /* "MMXe" */ >+#define XEN_CPUID_SIGNATURE_EDX 0x4d4d566e /* "nVMM" */ > >I hope you know this spells "MMXenVMMXenV". The ordering is ecx-edx-ebx >(register numbers 1, 2, 3). According to the documentation I have, the ordering is EBX-EDX-ECX, so indeed the spelling would seem broken, but since this is an interface header taken directly from Xen, it's got to be (and it works) that way. Odd. Jan -- 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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