| Date | Wed, 29 Mar 2017 17:14:13 +0200 | From | Borislav Petkov <> | Subject | Re: [RFC PATCH v2 18/32] kvm: svm: Use the hardware provided GPA instead of page walk |
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On Thu, Mar 02, 2017 at 10:16:05AM -0500, Brijesh Singh wrote: > From: Tom Lendacky <thomas.lendacky@amd.com> > > When a guest causes a NPF which requires emulation, KVM sometimes walks > the guest page tables to translate the GVA to a GPA. This is unnecessary > most of the time on AMD hardware since the hardware provides the GPA in > EXITINFO2. > > The only exception cases involve string operations involving rep or > operations that use two memory locations. With rep, the GPA will only be > the value of the initial NPF and with dual memory locations we won't know > which memory address was translated into EXITINFO2. > > Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> > Reviewed-by: Borislav Petkov <bp@suse.de>
I think I already asked you to remove Revewed-by tags when you have to change an already reviewed patch in non-trivial manner. Why does this one still have my Reviewed-by tag?
-- Regards/Gruss, Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --
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