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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <58b02adc-7389-4fcd-a443-1856af7886b7@redhat.com>
Date: Fri, 17 May 2024 18:54:15 +0200
From: Paolo Bonzini <pbonzini@...hat.com>
To: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
 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>
Cc: 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 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".

Paolo