x86: fix wakeup_cpu with numaq/es7000 v2 - call ->update_genapic()

Impact: fix boot crash on 32-bit

Hiroshi Shimamoto reported a boot failure on 32-bit x86.

The setting of x86_quirks.wakeup_cpu is missing (when
not passing in an explicit apic= boot parameter).

Reported-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/mach-generic/probe.c b/arch/x86/mach-generic/probe.c
index 90b134f3cd742123eeaba7e3251118968ce1d467..c346d9d0226f313129917b091e4a4e94bcde6105 100644 (file)
--- a/arch/x86/mach-generic/probe.c
+++ b/arch/x86/mach-generic/probe.c
@@ -76,12 +76,15 @@ void __init generic_bigsmp_probe(void)
         * - we find more than 8 CPUs in acpi LAPIC listing with xAPIC support
         */
 
-       if (!cmdline_apic && genapic == &apic_default)
+       if (!cmdline_apic && genapic == &apic_default) {
                if (apic_bigsmp.probe()) {
                        genapic = &apic_bigsmp;
+                       if (x86_quirks->update_genapic)
+                               x86_quirks->update_genapic();
                        printk(KERN_INFO "Overriding APIC driver with %s\n",
                               genapic->name);
                }
+       }
 #endif
 }
 
@@ -98,6 +101,9 @@ void __init generic_apic_probe(void)
                /* Not visible without early console */
                if (!apic_probe[i])
                        panic("Didn't find an APIC driver");
+
+               if (x86_quirks->update_genapic)
+                       x86_quirks->update_genapic();
        }
        printk(KERN_INFO "Using APIC driver %s\n", genapic->name);
 }
@@ -112,6 +118,8 @@ int __init mps_oem_check(struct mp_config_table *mpc, char *oem,
                if (apic_probe[i]->mps_oem_check(mpc, oem, productid)) {
                        if (!cmdline_apic) {
                                genapic = apic_probe[i];
+                               if (x86_quirks->update_genapic)
+                                       x86_quirks->update_genapic();
                                printk(KERN_INFO "Switched to APIC driver `%s'.\n",
                                       genapic->name);
                        }
@@ -128,6 +136,8 @@ int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
                if (apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id)) {
                        if (!cmdline_apic) {
                                genapic = apic_probe[i];
+                               if (x86_quirks->update_genapic)
+                                       x86_quirks->update_genapic();
                                printk(KERN_INFO "Switched to APIC driver `%s'.\n",
                                       genapic->name);
                        }