linux-kernel - Re: [PATCH 1/4] x86/sgx: Add total number of EPC pages

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Message-ID: <Z-Zn1KkNTNCGvEcj@kernel.org>
Date: Fri, 28 Mar 2025 11:11:48 +0200
From: Jarkko Sakkinen <jarkko@...nel.org>
To: "Reshetova, Elena" <elena.reshetova@...el.com>
Cc: "Hansen, Dave" <dave.hansen@...el.com>,
	"linux-sgx@...r.kernel.org" <linux-sgx@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"Mallick, Asit K" <asit.k.mallick@...el.com>,
	"Scarlata, Vincent R" <vincent.r.scarlata@...el.com>,
	"Cai, Chong" <chongc@...gle.com>,
	"Aktas, Erdem" <erdemaktas@...gle.com>,
	"Annapurve, Vishal" <vannapurve@...gle.com>,
	"dionnaglaze@...gle.com" <dionnaglaze@...gle.com>,
	"bondarn@...gle.com" <bondarn@...gle.com>,
	"Raynor, Scott" <scott.raynor@...el.com>,
	"Shutemov, Kirill" <kirill.shutemov@...el.com>
Subject: Re: [PATCH 1/4] x86/sgx: Add total number of EPC pages

On Fri, Mar 28, 2025 at 10:42:18AM +0200, Jarkko Sakkinen wrote:
> In your code example you had a loop inside spinlock, which was based on
> a return code of an opcode, i.e. potentially infinite loop.
> 
> I'd like to remind you that the hardware I have is NUC7 from 2018 so
> you really have to nail how things will work semantically as I can
> only think these things only in theoretical level ;-) [1]

That said, I do execute these in NUC7 but is getting a bit old..

Cheapest hardware I've heard is Xeon E-2334 but even that with
case etc. is like nearing 2k in price.

BR, Jarkko