Messages in this thread | | | Date | Mon, 20 Aug 2018 02:38:28 -0600 | From | "Jan Beulich" <> | Subject | Re: [Xen-devel] [PATCH 1/2] x86/xen: don't write ptes directly in 32-bit PV guests |
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>>> On 20.08.18 at 07:14, <jgross@suse.com> wrote: > In some cases 32-bit PAE PV guests still write PTEs directly instead of > using hypercalls. This is especially bad when clearing a PTE as this is > done via 32-bit writes which will produce intermediate L1TF attackable > PTEs. > > Change the code to use hypercalls instead. > > Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
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