Messages in this thread | | | Date | Tue, 28 Feb 2023 21:45:56 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH 0/2] KVM: x86: Propagate AMD-specific IBRS bits to guests |
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On Tue, Feb 28, 2023 at 07:41:53PM +0000, Takahiro Itazuri wrote: > It is true that the kernel does not use those bits at all, but any > codes could be run inside guests.
So you mean we should stick *all* CPUID leafs in there just because anything can run in guests?
What is the hypervisor then for?
> One of examples is the following spectre/meltdown checker scipt used as > de facto standard.
Really? Says who?
$ grep -r . /sys/devices/system/cpu/vulnerabilities/
gives you all you need to know.
And if something's missing, then I'm listening.
Thx.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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