linux-kernel - Re: [PATCH v12 3/5] x86/sgx: Define error codes for use by ENCLS[EUPDATESVN]

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Message-ID: <c94bd946182a781f54a57d7b3e481f2d63b02764.camel@intel.com>
Date: Mon, 11 Aug 2025 10:23:52 +0000
From: "Huang, Kai" <kai.huang@...el.com>
To: "Reshetova, Elena" <elena.reshetova@...el.com>, "Hansen, Dave"
	<dave.hansen@...el.com>
CC: "seanjc@...gle.com" <seanjc@...gle.com>, "mingo@...nel.org"
	<mingo@...nel.org>, "Scarlata, Vincent R" <vincent.r.scarlata@...el.com>,
	"x86@...nel.org" <x86@...nel.org>, "jarkko@...nel.org" <jarkko@...nel.org>,
	"Annapurve, Vishal" <vannapurve@...gle.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "Mallick, Asit K" <asit.k.mallick@...el.com>,
	"Aktas, Erdem" <erdemaktas@...gle.com>, "Cai, Chong" <chongc@...gle.com>,
	"Bondarevska, Nataliia" <bondarn@...gle.com>, "linux-sgx@...r.kernel.org"
	<linux-sgx@...r.kernel.org>, "Raynor, Scott" <scott.raynor@...el.com>
Subject: Re: [PATCH v12 3/5] x86/sgx: Define error codes for use by
 ENCLS[EUPDATESVN]

On Mon, 2025-08-11 at 12:06 +0300, Elena Reshetova wrote:
> Add error codes for ENCLS[EUPDATESVN], then SGX CPUSVN update process can
> know the execution state of EUPDATESVN and notify userspace.
> 
> EUPDATESVN will be called when no active SGX users is guaranteed. Only add
> the error codes that can legally happen. E.g., it could also fail due to
> "SGX not ready" when there's SGX users but it wouldn't happen in this
> implementation.
> 
> Reviewed-by: Jarkko Sakkinen <jarkko@...nel.org>
> Signed-off-by: Elena Reshetova <elena.reshetova@...el.com>
> 

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