linux-kernel - Re: [PATCH 01/20] x86/tdx: Introduce tdvmcall

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Message-ID: <d6nrxz2rxguyjj7rmmj7jl7uvtmo5o2kpbqqxtn5wxyqjurfr6@niuyjy3l3jpy>
Date: Mon, 20 May 2024 13:35:41 +0300
From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To: Paolo Bonzini <pbonzini@...hat.com>
Cc: Sean Christopherson <seanjc@...gle.com>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, Thomas Gleixner <tglx@...utronix.de>, 
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, x86@...nel.org, 
	"H. Peter Anvin" <hpa@...or.com>, "K. Y. Srinivasan" <kys@...rosoft.com>, 
	Haiyang Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>, 
	Josh Poimboeuf <jpoimboe@...nel.org>, Peter Zijlstra <peterz@...radead.org>, 
	linux-coco@...ts.linux.dev, linux-kernel@...r.kernel.org, linux-hyperv@...r.kernel.org
Subject: Re: [PATCH 01/20] x86/tdx: Introduce tdvmcall_trampoline()

On Fri, May 17, 2024 at 07:02:25PM +0200, Paolo Bonzini wrote:
> On 5/17/24 16:19, Kirill A. Shutemov wrote:
> > The function will be used from inline assembly to handle most TDVMCALL
> > cases.
> 
> Perhaps add that the calling convention is designed to allow using the asm
> constraints a/b/c/d/S/D and keep the asm blocks simpler?

Sure.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov