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Date: Thu, 18 Feb 2016 16:31:43 -0500 From: Boris Ostrovsky <boris.ostrovsky@...cle.com> To: Borislav Petkov <bp@...en8.de>, X86 ML <x86@...nel.org> Cc: LKML <linux-kernel@...r.kernel.org>, Andy Lutomirski <luto@...capital.net>, "Luis R. Rodriguez" <mcgrof@...nel.org> Subject: Re: [PATCH] x86/ptdump: Remove paravirt_enabled() On 02/18/2016 03:00 PM, Borislav Petkov wrote: > From: Borislav Petkov <bp@...e.de> > > is_hypervisor_range() can simply check if the PGD index is > within ffff800000000000 - ffff87ffffffffff which is the range > reserved for a hypervisor. That range is practically an ABI, see > Documentation/x86/x86_64/mm.txt. > > Signed-off-by: Borislav Petkov <bp@...e.de> > Cc: Andy Lutomirski <luto@...capital.net> > Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com> > Cc: "Luis R. Rodriguez" <mcgrof@...nel.org> Under Xen, as PV guest: Tested-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
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