linux-kernel - RE: [PATCH AUTOSEL 6.1 3/7] x86/hyperv: Use slow_virt_to_phys() in page transition hypervisor callback

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Date: Tue, 12 Mar 2024 20:53:30 +0000
From: Michael Kelley <mhklinux@...look.com>
To: Pavel Machek <pavel@....cz>, Sasha Levin <sashal@...nel.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>, "Kirill A . Shutemov"
	<kirill.shutemov@...ux.intel.com>, Rick Edgecombe
	<rick.p.edgecombe@...el.com>, Wei Liu <wei.liu@...nel.org>,
	"kys@...rosoft.com" <kys@...rosoft.com>, "haiyangz@...rosoft.com"
	<haiyangz@...rosoft.com>, "sthemmin@...rosoft.com" <sthemmin@...rosoft.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>, "mingo@...hat.com"
	<mingo@...hat.com>, "bp@...en8.de" <bp@...en8.de>, "x86@...nel.org"
	<x86@...nel.org>, "dave.hansen@...ux.intel.com"
	<dave.hansen@...ux.intel.com>, "luto@...nel.org" <luto@...nel.org>,
	"peterz@...radead.org" <peterz@...radead.org>, "devel@...uxdriverproject.org"
	<devel@...uxdriverproject.org>
Subject: RE: [PATCH AUTOSEL 6.1 3/7] x86/hyperv: Use slow_virt_to_phys() in
 page transition hypervisor callback

From: Pavel Machek <pavel@....cz> Sent: Tuesday, March 12, 2024 1:35 PM
> 
> > In preparation for temporarily marking pages not present during a
> > transition between encrypted and decrypted, use slow_virt_to_phys()
> > in the hypervisor callback. As long as the PFN is correct,
> 
> This seems to be preparation for something we don't plan to do in
> -stable. Please drop.
> 

As the author of the patch, I agree.

Michael