On Tue, Dec 20, 2022 at 03:43:18PM +0800, Chao Peng wrote:

RESTRICTEDMEM is needed by TDX_HOST, not TDX_GUEST.

Which basically means that RESTRICTEDMEM should simply depend on KVM.
Because you can't know upfront whether KVM will run a TDX guest or a SNP
guest and so on.

Which then means that RESTRICTEDMEM will practically end up always
enabled in KVM HV configs.

The only reason to add another HAVE_KVM_RESTRICTED_MEM is some code only
works for 64bit[*] and CONFIG_RESTRICTEDMEM is not sufficient to enforce
that.

This is what I mean with "we have too many Kconfig items". :-\

-- 
Regards/Gruss,
    Boris.

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