[PATCH v2 2/4] x86/vmware: Add a header file for hypercall definitions

Borislav Petkov bp at alien8.de
Tue Aug 27 13:10:29 UTC 2019

On Fri, Aug 23, 2019 at 10:13:14AM +0200, Thomas Hellström (VMware) wrote:
> From: Thomas Hellstrom <thellstrom at 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:




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