linux-kernel - [patch 16/53] x86/xen/smp_pv: Prepare for separate mpparse callbacks

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Message-ID: <20230807135027.272696521@linutronix.de>
Date:   Mon,  7 Aug 2023 15:52:58 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Tom Lendacky <thomas.lendacky@....com>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        Huang Rui <ray.huang@....com>, Juergen Gross <jgross@...e.com>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Michael Kelley <mikelley@...rosoft.com>,
        Sohil Mehta <sohil.mehta@...el.com>,
        K Prateek Nayak <kprateek.nayak@....com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Zhang Rui <rui.zhang@...el.com>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Feng Tang <feng.tang@...el.com>,
        Andy Shevchenko <andy@...radead.org>
Subject: [patch 16/53] x86/xen/smp_pv: Prepare for separate mpparse callbacks

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@...utronix.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;
 }