Il 18/09/2014 19:13, Nakajima, Jun ha scritto: > In terms of the address for the MSR, I suggest that you choose one > from the range between 40000000H - 400000FFH. The SDM (35.1 > ARCHITECTURAL MSRS) says "All existing and > future processors will not implement any features using any MSR in > this range." Hyper-V already defines many synthetic MSRs in this > range, and I think it would be reasonable for you to pick one for this > to avoid a conflict?
KVM is not using any MSR in that range. However, I think it would be better to have the MSR (and perhaps CPUID) outside the hypervisor-reserved ranges, so that it becomes architecturally defined. In some sense it is similar to the HYPERVISOR CPUID feature. Paolo _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
