linux-kernel - [patch V3 09/22] x86/mpparse: Provide separate early/late callbacks

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Message-ID: <20240212154639.370491894@linutronix.de>
Date: Tue, 13 Feb 2024 22:05:03 +0100 (CET)
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>,
 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>,
 Michael Kelley <mhklinux@...look.com>,
 "Peter Zijlstra (Intel)" <peterz@...radead.org>,
 Andy Shevchenko <andy.shevchenko@...il.com>,
 Wei Liu <wei.liu@...nel.org>
Subject: [patch V3 09/22] x86/mpparse: Provide separate early/late callbacks

From: Thomas Gleixner <tglx@...utronix.de>

The early argument of x86_init::mpparse::get_smp_config() is more than
confusing. Provide two callbacks, one for each purpose.

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

---
 arch/x86/include/asm/x86_init.h |    4 ++++
 1 file changed, 4 insertions(+)
---

--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -17,11 +17,15 @@ struct irq_domain;
  * @setup_ioapic_ids:		platform specific ioapic id override
  * @find_mptable:		Find MPTABLE early to reserve the memory region
  * @get_smp_config:		get the smp configuration
+ * @early_parse_smp_cfg:	Parse the SMP configuration data early before initmem_init()
+ * @parse_smp_cfg:		Parse the SMP configuration data
  */
 struct x86_init_mpparse {
 	void (*setup_ioapic_ids)(void);
 	void (*find_mptable)(void);
 	void (*get_smp_config)(unsigned int early);
+	void (*early_parse_smp_cfg)(void);
+	void (*parse_smp_cfg)(void);
 };

 /**