linux-kernel - Re: [PATCH] x86: tdx: hide unused tdx_dump_mce

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Message-ID: <0ee20c6422a9e1d53c2a1f9112d5dd8308eea1ba.camel@intel.com>
Date:   Wed, 13 Dec 2023 20:41:36 +0000
From:   "Huang, Kai" <kai.huang@...el.com>
To:     "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
        "Hansen, Dave" <dave.hansen@...el.com>
CC:     "arnd@...nel.org" <arnd@...nel.org>,
        "Yao, Yuan" <yuan.yao@...el.com>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "bp@...en8.de" <bp@...en8.de>, "x86@...nel.org" <x86@...nel.org>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "Luck, Tony" <tony.luck@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "arnd@...db.de" <arnd@...db.de>, "hpa@...or.com" <hpa@...or.com>,
        "Yamahata, Isaku" <isaku.yamahata@...el.com>,
        "linux-coco@...ts.linux.dev" <linux-coco@...ts.linux.dev>
Subject: Re: [PATCH] x86: tdx: hide unused tdx_dump_mce_info()

On Wed, 2023-12-13 at 12:13 -0800, Dave Hansen wrote:
> On 12/13/23 12:11, Huang, Kai wrote:
> > > "The machine-check exception handler is expected to be implemented in the
> > > VMM."
> > I also agree.  Thanks.
> 
> Kai, could you please send a patch to fix this build problem that Arnd
> reported?

Turns out INTEL_TDX_GUEST selects X86_MCE, I think we can also just select
X86_MCE for TDX host?

config INTEL_TDX_GUEST
        bool "Intel TDX (Trust Domain Extensions) - Guest Support"
        depends on X86_64 && CPU_SUP_INTEL
	...
        select X86_MCE