[patch V3 15/22] x86/xen/smp_pv: Prepare for separate mpparse callbacks

From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, Tom Lendacky <thomas.lendacky@amd.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Arjan van de Ven <arjan@linux.intel.com>,
	Huang Rui <ray.huang@amd.com>, Juergen Gross <jgross@suse.com>,
	Dimitri Sivanich <dimitri.sivanich@hpe.com>,
	Sohil Mehta <sohil.mehta@intel.com>,
	K Prateek Nayak <kprateek.nayak@amd.com>,
	Kan Liang <kan.liang@linux.intel.com>,
	Zhang Rui <rui.zhang@intel.com>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	Feng Tang <feng.tang@intel.com>,
	Andy Shevchenko <andy@infradead.org>,
	Michael Kelley <mhklinux@outlook.com>,
	"Peter Zijlstra (Intel)" <peterz@infradead.org>,
	Andy Shevchenko <andy.shevchenko@gmail.com>,
	Wei Liu <wei.liu@kernel.org>
Subject: [patch V3 15/22] x86/xen/smp_pv: Prepare for separate mpparse callbacks
Date: Tue, 13 Feb 2024 22:05:12 +0100 (CET)	[thread overview]
Message-ID: <20240212154639.745028043@linutronix.de> (raw)
In-Reply-To: 20240212154529.402604963@linutronix.de

From: Thomas Gleixner <tglx@linutronix.de>

Provide a wrapper around the existing function and fill the new callbacks
in.

No functional change as the new callbacks are not yet operational.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>


---
 arch/x86/xen/smp_pv.c |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
---

--- a/arch/x86/xen/smp_pv.c
+++ b/arch/x86/xen/smp_pv.c
@@ -185,6 +185,11 @@ static void __init _get_smp_config(unsig
 	smp_found_config = 1;
 }
 
+static void __init xen_pv_smp_config(void)
+{
+	_get_smp_config(false);
+}
+
 static void __init xen_pv_smp_prepare_boot_cpu(void)
 {
 	BUG_ON(smp_processor_id() != 0);
@@ -455,6 +460,8 @@ void __init xen_smp_init(void)
 	smp_ops = xen_smp_ops;
 
 	/* Avoid searching for BIOS MP tables */
-	x86_init.mpparse.find_mptable = x86_init_noop;
-	x86_init.mpparse.get_smp_config = _get_smp_config;
+	x86_init.mpparse.find_mptable		= x86_init_noop;
+	x86_init.mpparse.early_parse_smp_cfg	= x86_init_noop;
+	x86_init.mpparse.parse_smp_cfg		= xen_pv_smp_config;
+	x86_init.mpparse.get_smp_config		= _get_smp_config;
 }



