Re: [PATCH] KVM: x86: use correct APIC ID on x2APIC transition

2015-05-26 Thread Paolo Bonzini
On 22/05/2015 18:45, Radim Krčmář wrote: > SDM April 2015, 10.12.5 State Changes From xAPIC Mode to x2APIC Mode > • Any APIC ID value written to the memory-mapped local APIC ID register > is not preserved. > > Fix it by sourcing vcpu_id (= initial APIC ID) instead of memory-mapped > APIC ID.

[PATCH] KVM: x86: use correct APIC ID on x2APIC transition

2015-05-22 Thread Radim Krčmář
SDM April 2015, 10.12.5 State Changes From xAPIC Mode to x2APIC Mode • Any APIC ID value written to the memory-mapped local APIC ID register is not preserved. Fix it by sourcing vcpu_id (= initial APIC ID) instead of memory-mapped APIC ID. Proper use of apic functions would result in two calls