linux-kernel - Re: [PATCHv11 11/19] x86/tdx: Convert shared memory back to private on kexec

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Message-ID: <20240531180602.GIZloRisrPdjLhaVBG@fat_crate.local>
Date: Fri, 31 May 2024 20:06:02 +0200
From: Borislav Petkov <bp@...en8.de>
To: "Kalra, Ashish" <ashish.kalra@....com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>,
	Elena Reshetova <elena.reshetova@...el.com>,
	Jun Nakajima <jun.nakajima@...el.com>,
	Rick Edgecombe <rick.p.edgecombe@...el.com>,
	Tom Lendacky <thomas.lendacky@....com>,
	Sean Christopherson <seanjc@...gle.com>,
	"Huang, Kai" <kai.huang@...el.com>,
	Ard Biesheuvel <ardb@...nel.org>, Baoquan He <bhe@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>, kexec@...ts.infradead.org,
	linux-hyperv@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-coco@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Tao Liu <ltao@...hat.com>
Subject: Re: [PATCHv11 11/19] x86/tdx: Convert shared memory back to private
 on kexec

On Fri, May 31, 2024 at 12:34:49PM -0500, Kalra, Ashish wrote:
> SNP guest kexec patches are based on top of this patch-series and SNP guests
> also need this exclusive mem_enc_lock protection, so CC_ATTR_MEM_ENCRYPT
> makes sense to be used here.

Well, for the future, I'd encourage you to always send an Acked-by: you
or Reviewed-by: you as a reply to such patches so that it is clear that
such a change is desired.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette