linux-kernel - Re: [PATCH 1/4] x86/coco: Add a new CC attribute to unify cache flush during kexec

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Message-ID: <20240228104447.GBZd8Onx_D_Doz8dzE@fat_crate.local>
Date: Wed, 28 Feb 2024 11:44:47 +0100
From: Borislav Petkov <bp@...en8.de>
To: Dave Young <dyoung@...hat.com>
Cc: Tom Lendacky <thomas.lendacky@....com>,
	"Huang, Kai" <kai.huang@...el.com>,
	"Gao, Chao" <chao.gao@...el.com>,
	"Hansen, Dave" <dave.hansen@...el.com>,
	"luto@...nel.org" <luto@...nel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"peterz@...radead.org" <peterz@...radead.org>,
	"hpa@...or.com" <hpa@...or.com>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"pbonzini@...hat.com" <pbonzini@...hat.com>,
	"nik.borisov@...e.com" <nik.borisov@...e.com>,
	"bhe@...hat.com" <bhe@...hat.com>
Subject: Re: [PATCH 1/4] x86/coco: Add a new CC attribute to unify cache
 flush during kexec

On Wed, Feb 28, 2024 at 10:54:22AM +0800, Dave Young wrote:
> Update: tested on an old laptop as well,  I did not find any problems
> with unconditional native_wbinvd(), kexec and kdump works fine.

Thanks a lot for testing it!

-- 
Regards/Gruss,
    Boris.

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