2015-09-17 23:18+0000, Wu, Feng: >> From: Paolo Bonzini [mailto:pbonz...@redhat.com] >> On 17/09/2015 17:58, Radim Krčmář wrote: >>> xAPIC address are only 8 bit long so they always get delivered to x2APIC >>> cluster 0, where first 16 bits work like xAPIC flat logical mode. >> >> Ok, I was wondering whether this was the correct interpretation. Thanks! > > Paolo, I don't think Radim clarify your concern, right? Since mda is 8-bit, it > is wrong with mda >> 16, this is your concern, right?
In case it was: mda is u32 so the bitshift is defined by C. (xAPIC destinations in KVM's x2APIC mode are stored in lowest 8 bits of mda, hence the cluster is always 0.) Or am I still missing the point? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
