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Date: Wed, 17 Apr 2019 15:02:50 +0800
From: Dave Young <dyoung@redhat.com>
Subject: Re: [PATCH v4] x86/boot: Use efi_setup_data for searching RSDP on
 kexec-ed kernel
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To: Junichi Nomura <j-nomura@ce.jp.nec.com>
Cc: Chao Fan <fanc.fnst@cn.fujitsu.com>, Kairui Song <kasong@redhat.com>, Baoquan He <bhe@redhat.com>, "x86@kernel.org" <x86@kernel.org>, "kexec@lists.infradead.org" <kexec@lists.infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Borislav Petkov <bp@alien8.de>

On 04/16/19 at 10:44pm, Junichi Nomura wrote:
> On 4/16/19 6:40 PM, Borislav Petkov wrote:
> > On Mon, Apr 15, 2019 at 11:00:25PM +0000, Junichi Nomura wrote:
> >> I thought we should hang here instead of return so that we
> >> don't run into efi_get_rsdp_addr() in case of kexec.
> > 
> > Hanging that early without debug output is not very friendly to
> > debuggers, methinks.
> 
> Right. But if we could move get_rsdp_addr() after console_init(),
> you get debug output.
> 

move it after console_init looks better, I finally setup IME as a serial
console, I can see debug msg even for kexec reboot now.

How about move it after console_init, and at the same time skip
efi_get_rsdp_addr in case kexec?

Thanks
Dave

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