linux-kernel - Re: [PATCH 02/20] x86/tdx: Add macros to generate TDVMCALL wrappers

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Message-ID: <je6a3ftfcfwhiz26kcy5wkcini6mfjd7czrvmyn245hzbb7aeb@53hvyzvjgzip>
Date: Mon, 20 May 2024 13:35:56 +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 02/20] x86/tdx: Add macros to generate TDVMCALL wrappers

On Fri, May 17, 2024 at 06:54:15PM +0200, Paolo Bonzini wrote:
> On 5/17/24 16:19, Kirill A. Shutemov wrote:
> > Introduce a set of macros that allow to generate wrappers for TDVMCALL
> > leafs. The macros uses tdvmcall_trmapoline() and provides SYSV-complaint
> > ABI on top of it.
> 
> Not really SYSV-compliant, more like "The macros use asm() to call
> tdvmcall_trampoline with its custom parameter passing convention".

Sounds better, thanks.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov