On Tue, May 30 2023 at 11:26, Thomas Gleixner wrote: > On Tue, May 30 2023 at 03:54, Kirill A. Shutemov wrote: >> On Mon, May 29, 2023 at 11:31:29PM +0300, Kirill A. Shutemov wrote: >>> Disabling parallel bringup helps. I didn't look closer yet. If you have >>> an idea let me know. >> >> Okay, it crashes around .Lread_apicid due to touching MSRs that trigger #VE. >> >> Looks like the patch had no intention to enable parallel bringup on TDX. >> >> + * Intel-TDX has a secure RDMSR hypercall, but that needs to be >> + * implemented seperately in the low level startup ASM code. >> >> But CC_ATTR_GUEST_STATE_ENCRYPT that used to filter it out is >> SEV-ES-specific thingy and doesn't cover TDX. I don't think we have an >> attribute that fits nicely here. > > Bah. That sucks. Can we have something consistent in this CC space or needs everything to be extra magic per CC variant?