linux-kernel - Re: [PATCH v8 8.1/9] x86/virt/tdx: Reduce TDMR's reserved areas by using CMRs to find memory holes

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Message-ID: <6df204490606e9c7323f2c0743416fab2d9e0f03.camel@intel.com>
Date: Fri, 6 Dec 2024 02:45:46 +0000
From: "Huang, Kai" <kai.huang@...el.com>
To: "Hansen, Dave" <dave.hansen@...el.com>, "seanjc@...gle.com"
	<seanjc@...gle.com>, "bp@...en8.de" <bp@...en8.de>, "peterz@...radead.org"
	<peterz@...radead.org>, "hpa@...or.com" <hpa@...or.com>, "mingo@...hat.com"
	<mingo@...hat.com>, "kirill.shutemov@...ux.intel.com"
	<kirill.shutemov@...ux.intel.com>, "tglx@...utronix.de" <tglx@...utronix.de>,
	"pbonzini@...hat.com" <pbonzini@...hat.com>, "Williams, Dan J"
	<dan.j.williams@...el.com>
CC: "nik.borisov@...e.com" <nik.borisov@...e.com>, "Hunter, Adrian"
	<adrian.hunter@...el.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "Edgecombe, Rick P"
	<rick.p.edgecombe@...el.com>, "x86@...nel.org" <x86@...nel.org>, "Yamahata,
 Isaku" <isaku.yamahata@...el.com>
Subject: Re: [PATCH v8 8.1/9] x86/virt/tdx: Reduce TDMR's reserved areas by
 using CMRs to find memory holes

On Thu, 2024-12-05 at 10:10 -0800, Dave Hansen wrote:
> On 12/5/24 04:40, Kai Huang wrote:
> > A TDX module initialization failure was reported on a Emerald Rapids
> > platform [*]:
> > 
> >   virt/tdx: initialization failed: TDMR [0x0, 0x80000000): reserved areas exhausted.
> >   virt/tdx: module initialization failed (-28)
> 
> There's a *LOT* of changelog here, but I'm not sure how much of it is
> actually relevant to the problem at hand. I also think it's wrong to to
> present the problem as one of being too fine-grained.
> 
> Could you please rework the changelog and the comments to make this more
> succinct?

Thanks for the feedback.  Yeah I agree they can be more concise.  I'll update
and send out the updated patch.