linux-kernel - Re: [PATCHv2 01/12] x86/tdx: Consolidate TDX error handling

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Message-ID: <aJNycTvk1GEWgK_Q@google.com>
Date: Wed, 6 Aug 2025 08:19:13 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Rick P Edgecombe <rick.p.edgecombe@...el.com>
Cc: Chao Gao <chao.gao@...el.com>, Dave Hansen <dave.hansen@...el.com>, 
	Isaku Yamahata <isaku.yamahata@...el.com>, "x86@...nel.org" <x86@...nel.org>, "bp@...en8.de" <bp@...en8.de>, 
	Kai Huang <kai.huang@...el.com>, "mingo@...hat.com" <mingo@...hat.com>, 
	"tglx@...utronix.de" <tglx@...utronix.de>, 
	"kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "pbonzini@...hat.com" <pbonzini@...hat.com>, 
	"linux-coco@...ts.linux.dev" <linux-coco@...ts.linux.dev>, 
	"dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>, Yan Y Zhao <yan.y.zhao@...el.com>, 
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>
Subject: Re: [PATCHv2 01/12] x86/tdx: Consolidate TDX error handling

On Fri, Aug 01, 2025, Rick P Edgecombe wrote:
> On Thu, 2025-07-31 at 16:53 -0700, Sean Christopherson wrote:
> > On Thu, Jul 31, 2025, Rick P Edgecombe wrote:
> > > On Thu, 2025-07-31 at 16:31 -0700, Sean Christopherson wrote:
> > > > On Wed, Jul 30, 2025, Rick P Edgecombe wrote:
> > > > > So STATUS_OPERAND_BUSY() seems like an ok thing to try next for v3 of this
> > > > > series at least. Unless anyone has any strong objections ahead of time.
> > > > 
> > > > Can you make it IS_TDX_STATUS_OPERAND_BUSY() so that it's obviously a check and
> > > > not a statement/value, and to scope it to TDX?
> > > 
> > > It's a mouthful, but I can live with it. Yea, it def should have TDX in the name.
> > 
> > IS_TDX_STATUS_OP_BUSY?
> 
> Ehh, would nicer to have it closer to what is in the TDX docs. The worst
> would be to read TDX_STATUS_OP_BUSY, then have to look at the value to figure
> out which error code it actually was.
> 
> Maybe just drop STATUS and have IS_TDX_OPERAND_BUSY()? It still loses the ERR
> part, which made it look like IS_ERR().

Any of the IS_TDX_xxx options work for me.