| Date | Tue, 27 Aug 2019 15:10:29 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH v2 2/4] x86/vmware: Add a header file for hypercall definitions |
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On Fri, Aug 23, 2019 at 10:13:14AM +0200, Thomas Hellström (VMware) wrote: > From: Thomas Hellstrom <thellstrom@vmware.com> > > The new header is intended to be used by drivers using the backdoor. > Follow the kvm example using alternatives self-patching to > choose between vmcall, vmmcall and io instructions. > > Also define two new CPU feature flags to indicate hypervisor support > for vmcall- and vmmcall instructions.
I could use some of the explanation why we need two feature flags added here from:
https://lkml.kernel.org/r/970d2bb6-ab29-315f-f5d8-5d11095859af@shipmail.org
Thx.
-- Regards/Gruss, Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
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