linux-kernel - Re: [PATCHv9 06/17] x86/mm: Make x86_platform.guest.enc_status_change

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Date: Tue, 26 Mar 2024 10:30:19 +0000
From: "Huang, Kai" <kai.huang@...el.com>
To: "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>, "mingo@...hat.com"
	<mingo@...hat.com>, "x86@...nel.org" <x86@...nel.org>, "bp@...en8.de"
	<bp@...en8.de>, "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>
CC: "Hansen, Dave" <dave.hansen@...el.com>, "Edgecombe, Rick P"
	<rick.p.edgecombe@...el.com>, "Reshetova, Elena" <elena.reshetova@...el.com>,
	"Nakajima, Jun" <jun.nakajima@...el.com>, "rafael@...nel.org"
	<rafael@...nel.org>, "peterz@...radead.org" <peterz@...radead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"sathyanarayanan.kuppuswamy@...ux.intel.com"
	<sathyanarayanan.kuppuswamy@...ux.intel.com>, "Hunter, Adrian"
	<adrian.hunter@...el.com>, "thomas.lendacky@....com"
	<thomas.lendacky@....com>, "ashish.kalra@....com" <ashish.kalra@....com>,
	"kexec@...ts.infradead.org" <kexec@...ts.infradead.org>, "seanjc@...gle.com"
	<seanjc@...gle.com>, "bhe@...hat.com" <bhe@...hat.com>,
	"linux-coco@...ts.linux.dev" <linux-coco@...ts.linux.dev>
Subject: Re: [PATCHv9 06/17] x86/mm: Make
 x86_platform.guest.enc_status_change_*() return errno

On Mon, 2024-03-25 at 12:39 +0200, Kirill A. Shutemov wrote:
> TDX is going to have more than one reason to fail
> enc_status_change_prepare().
> 
> Change the callback to return errno instead of assuming -EIO;
> enc_status_change_finish() changed too to keep the interface symmetric.
> 
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
> Reviewed-by: Dave Hansen <dave.hansen@...el.com>
> 

Reviewed-by: Kai Huang <kai.huang@...el.com>