Messages in this thread | | | Date | Fri, 18 Mar 2022 16:03:13 +0300 | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCHv6 07/30] x86/traps: Add #VE support for TDX guest |
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On Fri, Mar 18, 2022 at 11:55:11AM +0100, Peter Zijlstra wrote: > On Thu, Mar 17, 2022 at 01:32:07PM -0700, Dave Hansen wrote: > > > The TDX rules are *much* nicer than SEV. They're also a lot nicer on > > TDX _now_ than they used to be. There are a few stubborn people at > > Intel who managed to add some drops of sanity to the architecture. > > Right; that is saner than it used to be. I have definite memories that > pages could be taken back by the TDX thing and would need > re-authentication. A pool of 'fixed' pages was talked about. I'm glad to > hear all that is gone.
Right, VMM can still pull memory form the guest at any point, but reference of such memory from the guest would lead not to #VE as before, but to TD termination.
-- Kirill A. Shutemov
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