linux-kernel - [tip: x86/apic] x86/xen/smp

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Date: Fri, 16 Feb 2024 15:17:25 -0000
From: "tip-bot2 for Thomas Gleixner" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Thomas Gleixner <tglx@...utronix.de>, Juergen Gross <jgross@...e.com>,
 Sohil Mehta <sohil.mehta@...el.com>, Michael Kelley <mhklinux@...look.com>,
 Zhang Rui <rui.zhang@...el.com>, Wang Wendy <wendy.wang@...el.com>,
 K Prateek Nayak <kprateek.nayak@....com>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: x86/apic] x86/xen/smp_pv: Remove cpudata fiddling

The following commit has been merged into the x86/apic branch of tip:

Commit-ID:     d5474e4d2c91b3f27864e9898f7f6e49daf26d93
Gitweb:        https://git.kernel.org/tip/d5474e4d2c91b3f27864e9898f7f6e49daf26d93
Author:        Thomas Gleixner <tglx@...utronix.de>
AuthorDate:    Tue, 13 Feb 2024 22:04:24 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Thu, 15 Feb 2024 22:07:38 +01:00

x86/xen/smp_pv: Remove cpudata fiddling

The new topology CPUID parser installs already fake topology for XEN/PV,
which ends up with cpuinfo::max_cores = 1.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Juergen Gross <jgross@...e.com>
Tested-by: Sohil Mehta <sohil.mehta@...el.com>
Tested-by: Michael Kelley <mhklinux@...look.com>
Tested-by: Zhang Rui <rui.zhang@...el.com>
Tested-by: Wang Wendy <wendy.wang@...el.com>
Tested-by: K Prateek Nayak <kprateek.nayak@....com>
Link: https://lore.kernel.org/r/20240212153625.576579177@linutronix.de




---
 arch/x86/xen/smp_pv.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/x86/xen/smp_pv.c b/arch/x86/xen/smp_pv.c
index a0f07bb..3ae29c2 100644
--- a/arch/x86/xen/smp_pv.c
+++ b/arch/x86/xen/smp_pv.c
@@ -73,7 +73,6 @@ static void cpu_bringup(void)
 	}
 	cpu = smp_processor_id();
 	smp_store_cpu_info(cpu);
-	cpu_data(cpu).x86_max_cores = 1;
 	set_cpu_sibling_map(cpu);
 
 	speculative_store_bypass_ht_init();
@@ -224,8 +223,6 @@ static void __init xen_pv_smp_prepare_cpus(unsigned int max_cpus)
 
 	smp_prepare_cpus_common();
 
-	cpu_data(0).x86_max_cores = 1;
-
 	speculative_store_bypass_ht_init();
 
 	xen_pmu_init(0);