Re: [PATCHv7 01/16] x86/acpi: Extract ACPI MADT wakeup code into a separate file

From: Baoquan He <bhe@redhat.com>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	x86@kernel.org, "Rafael J. Wysocki" <rafael@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Kuppuswamy Sathyanarayanan
	<sathyanarayanan.kuppuswamy@linux.intel.com>,
	Elena Reshetova <elena.reshetova@intel.com>,
	Jun Nakajima <jun.nakajima@intel.com>,
	Rick Edgecombe <rick.p.edgecombe@intel.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	"Kalra, Ashish" <ashish.kalra@amd.com>,
	Sean Christopherson <seanjc@google.com>,
	"Huang, Kai" <kai.huang@intel.com>,
	kexec@lists.infradead.org, linux-coco@lists.linux.dev,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCHv7 01/16] x86/acpi: Extract ACPI MADT wakeup code into a separate file
Date: Mon, 19 Feb 2024 19:36:44 +0800	[thread overview]
Message-ID: <ZdM9TPVafuHJ6QQp@MiWiFi-R3L-srv> (raw)
In-Reply-To: <a2cmua3qhbmhgzdxl5mszuvatnkyf4nwxjciurguhgbulrhin4@gvswvfats5er>

On 02/19/24 at 12:08pm, Kirill A. Shutemov wrote:
> On Mon, Feb 19, 2024 at 12:45:31PM +0800, Baoquan He wrote:
> > Do we need add the entry printing for ACPI_MADT_TYPE_MULTIPROC_WAKEUP
> > now in acpi_table_print_madt_entry()? Surely it's not related to this
> > patch.
> 
> Good catch. See patch below. Does it look okay?

Looks good to me, thanks.

Reviewed-by: Baoquan He <bhe@redhat.com>

> 
> > FWIW, 
> > 
> > Reviewed-by: Baoquan He <bhe@redhat.com>
> 
> Thanks!
> 
> From 23b7f9856a3d6b91c702def1e03872a60ae07d0e Mon Sep 17 00:00:00 2001
> From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
> Date: Mon, 19 Feb 2024 11:58:19 +0200
> Subject: [PATCH] ACPI: tables: Print MULTIPROC_WAKEUP when MADT is parse
> 
> When MADT is parsed, print MULTIPROC_WAKEUP information:
> 
> ACPI: MP Wakeup (version[1], mailbox[0x7fffd000], reset[0x7fffe068])
> 
> This debug information will be very helpful during bring up.
> 
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> ---
>  drivers/acpi/tables.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
> index b07f7d091d13..c59a3617bca7 100644
> --- a/drivers/acpi/tables.c
> +++ b/drivers/acpi/tables.c
> @@ -198,6 +198,20 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header)
>  		}
>  		break;
>  
> +	case ACPI_MADT_TYPE_MULTIPROC_WAKEUP:
> +		{
> +			struct acpi_madt_multiproc_wakeup *p =
> +				(struct acpi_madt_multiproc_wakeup *)header;
> +			u64 reset_vector = 0;
> +
> +			if (p->version >= ACPI_MADT_MP_WAKEUP_VERSION_V1)
> +				reset_vector = p->reset_vector;
> +
> +			pr_debug("MP Wakeup (version[%d], mailbox[%#llx], reset[%#llx])\n",
> +				 p->version, p->mailbox_address, reset_vector);
> +		}
> +		break;
> +
>  	case ACPI_MADT_TYPE_CORE_PIC:
>  		{
>  			struct acpi_madt_core_pic *p = (struct acpi_madt_core_pic *)header;
> -- 
> 2.43.0
> 
> -- 
>   Kiryl Shutsemau / Kirill A. Shutemov
> 

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