Messages in this thread | | | Date | Fri, 18 Sep 2015 18:16:32 +0200 | From | Radim Krčmář <> | Subject | Re: [PATCH v8 03/13] KVM: Define a new interface kvm_intr_is_single_vcpu() |
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2015-09-17 23:18+0000, Wu, Feng: >> From: Paolo Bonzini [mailto:pbonzini@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?
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