> From: Andrew Cooper [mailto:[email protected]] > Sent: Saturday, June 9, 2018 2:49 AM > > The main purpose of this change is to allow us to set a specific MSR value, > without needing to know whether there is already a load/save list slot for it. > > Previously, callers wanting this property needed to call both > vmx_add_*_msr() > and vmx_write_*_msr() to cover both cases, and there are no callers which > want > the old behaviour of being a no-op if an entry already existed for the MSR. > > As a result of this API improvement, the default value for guest MSRs need > not > be 0, and the default for host MSRs need not be passed via hardware > register. > In practice, this cleans up the VPMU allocation logic, and avoids an MSR > read > as part of vcpu construction. > > Signed-off-by: Andrew Cooper <[email protected]>
Acked-by: Kevin Tian <[email protected]> _______________________________________________ Xen-devel mailing list [email protected] https://lists.xenproject.org/mailman/listinfo/xen-devel
