On Tue, Apr 01, 2025 at 09:01:24AM -0400, Xiaoyao Li wrote: > TDX advertises core crystal clock with cpuid[0x15] as 25MHz for TD > guests and it's unchangeable from VMM. As a result, TDX guest reads > the APIC timer as the same frequency, 25MHz.
Did you mean s/as/at/ ? > While KVM's default emulated frequency for APIC bus is 1GHz, set the > APIC bus rate to match with TDX explicitly to ensure KVM provide correct > emulated APIC timer for TD guest. > > Signed-off-by: Xiaoyao Li <xiaoyao...@intel.com> > --- > Changes in v6: > - new patch; > --- > target/i386/kvm/tdx.c | 13 +++++++++++++ > target/i386/kvm/tdx.h | 3 +++ > 2 files changed, 16 insertions(+) Reviewed-by: Daniel P. Berrangé <berra...@redhat.com> With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
