linux-kernel - Re: [PATCH v3 1/4] x86/sev: add SVSM vTPM probe/send

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Message-ID: <20250320171619.GOZ9xNY4W54avW2a-u@fat_crate.local>
Date: Thu, 20 Mar 2025 18:16:19 +0100
From: Borislav Petkov <bp@...en8.de>
To: Jarkko Sakkinen <jarkko@...nel.org>
Cc: Stefano Garzarella <sgarzare@...hat.com>,
	Tom Lendacky <thomas.lendacky@....com>,
	Peter Huewe <peterhuewe@....de>, Jason Gunthorpe <jgg@...pe.ca>,
	x86@...nel.org, linux-kernel@...r.kernel.org,
	linux-integrity@...r.kernel.org, Dov Murik <dovmurik@...ux.ibm.com>,
	Dionna Glaze <dionnaglaze@...gle.com>, linux-coco@...ts.linux.dev,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	Claudio Carvalho <cclaudio@...ux.ibm.com>,
	Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Joerg Roedel <jroedel@...e.de>
Subject: Re: [PATCH v3 1/4] x86/sev: add SVSM vTPM probe/send_command
 functions

On Thu, Mar 20, 2025 at 05:03:09PM +0200, Jarkko Sakkinen wrote:
> > I can do that, I slightly prefer BIT_ULL() macro, but I don't have a strong
> > opinion on my side.
> > @Borislav since you suggested it, WDYT?
> 
> Either goes for me. Sorry for nitpicking that :-) The first comment
> stil applies.

Bit 8 is a lot better than 0x100.

Let's give a better example:

0x0000000008000000

or

BIT_ULL(27)

:-)

While I'm here: I'm guessing I'll route patches 1 and 4 through tip once
they're ready to go and give Jarkko an immutable branch he can base the other
two ontop.

Agreed?

Thx.

-- 
Regards/Gruss,
    Boris.

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