linux-kernel - [patch 53/58] x86/apic: Convert other overrides to apic_update

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Message-ID: <20230717223226.237896259@linutronix.de>
Date:   Tue, 18 Jul 2023 01:15:57 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Wei Liu <wei.liu@...nel.org>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        Juergen Gross <jgross@...e.com>
Subject: [patch 53/58] x86/apic: Convert other overrides to apic_update_callback()

Convert all places which just assign a new function directly to the apic
callback to use apic_update_callback() which prepares for using static
calls.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/hyperv/hv_apic.c |   20 ++++++++++----------
 arch/x86/kernel/kvm.c     |    4 ++--
 arch/x86/kernel/sev.c     |    2 +-
 3 files changed, 13 insertions(+), 13 deletions(-)

--- a/arch/x86/hyperv/hv_apic.c
+++ b/arch/x86/hyperv/hv_apic.c
@@ -288,12 +288,12 @@ void __init hv_apic_init(void)
 		 */
 		orig_apic = *apic;
 
-		apic->send_IPI = hv_send_ipi;
-		apic->send_IPI_mask = hv_send_ipi_mask;
-		apic->send_IPI_mask_allbutself = hv_send_ipi_mask_allbutself;
-		apic->send_IPI_allbutself = hv_send_ipi_allbutself;
-		apic->send_IPI_all = hv_send_ipi_all;
-		apic->send_IPI_self = hv_send_ipi_self;
+		apic_update_callback(send_IPI, hv_send_ipi);
+		apic_update_callback(send_IPI_mask, hv_send_ipi_mask);
+		apic_update_callback(send_IPI_mask_allbutself, hv_send_ipi_mask_allbutself);
+		apic_update_callback(send_IPI_allbutself, hv_send_ipi_allbutself);
+		apic_update_callback(send_IPI_all, hv_send_ipi_all);
+		apic_update_callback(send_IPI_self, hv_send_ipi_self);
 	}
 
 	if (ms_hyperv.hints & HV_X64_APIC_ACCESS_RECOMMENDED) {
@@ -312,10 +312,10 @@ void __init hv_apic_init(void)
 		 */
 		apic_update_callback(eoi, hv_apic_eoi_write);
 		if (!x2apic_enabled()) {
-			apic->read      = hv_apic_read;
-			apic->write     = hv_apic_write;
-			apic->icr_write = hv_apic_icr_write;
-			apic->icr_read  = hv_apic_icr_read;
+			apic_update_callback(read, hv_apic_read);
+			apic_update_callback(write, hv_apic_write);
+			apic_update_callback(icr_write, hv_apic_icr_write);
+			apic_update_callback(icr_read, hv_apic_icr_read);
 		}
 	}
 }
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -624,8 +624,8 @@ late_initcall(setup_efi_kvm_sev_migratio
  */
 static void kvm_setup_pv_ipi(void)
 {
-	apic->send_IPI_mask = kvm_send_ipi_mask;
-	apic->send_IPI_mask_allbutself = kvm_send_ipi_mask_allbutself;
+	apic_update_callback(send_IPI_mask, kvm_send_ipi_mask);
+	apic_update_callback(send_IPI_mask_allbutself, kvm_send_ipi_mask_allbutself);
 	pr_info("setup PV IPIs\n");
 }
 
--- a/arch/x86/kernel/sev.c
+++ b/arch/x86/kernel/sev.c
@@ -1099,7 +1099,7 @@ void snp_set_wakeup_secondary_cpu(void)
 	 * required method to start APs under SNP. If the hypervisor does
 	 * not support AP creation, then no APs will be started.
 	 */
-	apic->wakeup_secondary_cpu = wakeup_cpu_via_vmgexit;
+	apic_update_callback(wakeup_secondary_cpu, wakeup_cpu_via_vmgexit);
 }
 
 int __init sev_es_setup_ap_jump_table(struct real_mode_header *rmh)