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>

1 files changed, 11 insertions, 1 deletions

diff --git a/arch/x86/mach-generic/probe.c b/arch/x86/mach-generic/probe.c
index 90b134f3cd74..c346d9d0226f 100644
--- 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);
                         }