On Thu, May 21, 2026, David Woodhouse wrote: > On Sat, 2026-05-09 at 23:46 +0100, David Woodhouse wrote: > > From: David Woodhouse <[email protected]> > That does leave userspace still needing a way to get the APIC bus > frequency, to populate CPUID. So maybe I'll just make an attribute > which returns that as a single value.
Already exists, KVM_CAP_X86_APIC_BUS_CYCLES_NS. The TDX architecture decided that unconditionally telling guests the virtual APIC bus runs at 400Mhz was a brilliant idea.

