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From: "Huang, Kai" <kai.huang@intel.com>
To: "sathyanarayanan.kuppuswamy@linux.intel.com" 
	<sathyanarayanan.kuppuswamy@linux.intel.com>,
	"peterz@infradead.org" <peterz@infradead.org>,
	"kirill.shutemov@linux.intel.com"
	<kirill.shutemov@linux.intel.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: "Hansen, Dave" <dave.hansen@intel.com>, "Christopherson,,
	Sean" <seanjc@google.com>, "bp@alien8.de" <bp@alien8.de>,
	"x86@kernel.org" <x86@kernel.org>,
	"hpa@zytor.com" <hpa@zytor.com>,
	"mingo@redhat.com" <mingo@redhat.com>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"pbonzini@redhat.com" <pbonzini@redhat.com>,
	"Yamahata, Isaku" <isaku.yamahata@intel.com>,
	"n.borisov.lkml@gmail.com" <n.borisov.lkml@gmail.com>
Subject: Re: [PATCH v3 03/12] x86/tdx: Make macros of TDCALLs consistent with the spec
Date: Fri, 28 Jul 2023 02:45:11 +0000	[thread overview]
Message-ID: <2c5eb48ac9d2ae84dc0010bb0934486d09274724.camel@intel.com> (raw)
In-Reply-To: <b9fbbbb7-f855-5744-d6ad-c650b10ce135@linux.intel.com>

On Thu, 2023-07-27 at 18:54 -0700, Sathyanarayanan Kuppuswamy wrote:
> 
> On 7/26/23 4:25 AM, Kai Huang wrote:
> > The TDX spec names all TDCALLs with prefix "TDG".  Currently, the kernel
> > doesn't follow such convention for the macros of those TDCALLs but uses
> > prefix "TDX_" for all of them.  Although it's arguable whether the TDX
> > spec names those TDCALLs properly, it's better for the kernel to follow
> > the spec when naming those macros.
> > 
> > Change all macros of TDCALLs to make them consistent with the spec.  As
> > a bonus, they get distinguished easily from the host-side SEAMCALLs,
> > which all have prefix "TDH".
> > 
> > No functional change intended.
> > 
> 
> When upstreaming the TDX guest patches, there was a discussion about using
> TDG vs TDX. Final agreement is to use TDX_ prefix. I think it makes sense
> to align with the spec, but it is up to the maintainer.
> 
> What about the function name prefix? Are you planning to change them to tdg_*?

I changed to __tdcall() in the next patch.
 
> 
> Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>

Thanks.


  reply	other threads:[~2023-07-28  2:45 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-26 11:25 [PATCH v3 00/12] Unify TDCALL/SEAMCALL and TDVMCALL assembly Kai Huang
2023-07-26 11:25 ` [PATCH v3 01/12] x86/tdx: Zero out the missing RSI in TDX_HYPERCALL macro Kai Huang
2023-07-27 12:48   ` kirill.shutemov
2023-07-26 11:25 ` [PATCH v3 02/12] x86/tdx: Skip saving output regs when SEAMCALL fails with VMFailInvalid Kai Huang
2023-07-27 12:52   ` kirill.shutemov
2023-07-27 22:55     ` Huang, Kai
2023-07-26 11:25 ` [PATCH v3 03/12] x86/tdx: Make macros of TDCALLs consistent with the spec Kai Huang
2023-07-27 13:00   ` kirill.shutemov
2023-07-28  1:54   ` Sathyanarayanan Kuppuswamy
2023-07-28  2:45     ` Huang, Kai [this message]
2023-07-26 11:25 ` [PATCH v3 04/12] x86/tdx: Rename __tdx_module_call() to __tdcall() Kai Huang
2023-07-27 13:02   ` kirill.shutemov
2023-07-28 15:33   ` Sathyanarayanan Kuppuswamy
2023-07-26 11:25 ` [PATCH v3 05/12] x86/tdx: Pass TDCALL/SEAMCALL input/output registers via a structure Kai Huang
2023-07-27 16:36   ` kirill.shutemov
2023-07-27 22:54     ` Huang, Kai
2023-08-03 10:58       ` kirill.shutemov
2023-08-03 11:35         ` Huang, Kai
2023-08-03 11:47           ` kirill.shutemov
2023-07-26 11:25 ` [PATCH v3 06/12] x86/tdx: Extend TDX_MODULE_CALL to support more TDCALL/SEAMCALL leafs Kai Huang
2023-07-27 16:50   ` kirill.shutemov
2023-07-27 22:58     ` Huang, Kai
2023-07-26 11:25 ` [PATCH v3 07/12] x86/tdx: Make TDX_HYPERCALL asm similar to TDX_MODULE_CALL Kai Huang
2023-07-27 17:10   ` kirill.shutemov
2023-07-27 23:05     ` Huang, Kai
2023-08-03 11:45       ` kirill.shutemov
2023-08-03 11:56         ` Huang, Kai
2023-08-03 12:12           ` kirill.shutemov
2023-08-03 12:41             ` Huang, Kai
2023-08-03 13:47               ` kirill.shutemov
2023-08-03 22:41                 ` Huang, Kai
2023-07-26 11:25 ` [PATCH v3 08/12] x86/tdx: Reimplement __tdx_hypercall() using TDX_MODULE_CALL asm Kai Huang
2023-08-06 11:25   ` kirill.shutemov
2023-07-26 11:25 ` [PATCH v3 09/12] x86/tdx: Remove 'struct tdx_hypercall_args' Kai Huang
2023-08-06 11:29   ` kirill.shutemov
2023-07-26 11:25 ` [PATCH v3 10/12] x86/virt/tdx: Wire up basic SEAMCALL functions Kai Huang
2023-08-06 11:36   ` kirill.shutemov
2023-08-07  1:40     ` Huang, Kai
2023-08-07 14:30       ` Sean Christopherson
2023-08-07 23:51         ` Huang, Kai
2023-07-26 11:25 ` [PATCH v3 11/12] x86/virt/tdx: Allow SEAMCALL to handle #UD and #GP Kai Huang
2023-08-06 11:41   ` kirill.shutemov
2023-08-07  2:14     ` Huang, Kai
2023-08-07  9:53       ` kirill.shutemov
2023-08-07 12:41         ` Huang, Kai
2023-08-07 14:27           ` kirill.shutemov
2023-08-07 14:46     ` Dave Hansen
2023-07-26 11:25 ` [PATCH v3 12/12] x86/virt/tdx: Adjust 'struct tdx_module_args' to use x86 "register index" layout Kai Huang
2023-08-02 21:32   ` Isaku Yamahata
2023-08-02 23:20     ` Huang, Kai
2023-08-02 21:39   ` Isaku Yamahata
2023-08-06 11:50   ` kirill.shutemov
2023-08-07  2:16     ` Huang, Kai

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