setup_IO_APIC_irqs() runs before APs get brought up, so using
desc->arch.cpu_mask as best risks it being either empty or having bits
for CPUs other than the BP set. Just use the APIC ID of the only
online CPU directly. Replace a stray hard_smp_processor_id() at once.
Signed-off-by: Jan Beulich <jbeul...@suse.com>
--- a/xen/arch/x86/io_apic.c
+++ b/xen/arch/x86/io_apic.c
@@ -1039,7 +1039,7 @@ static void __init setup_IO_APIC_irqs(vo
disable_8259A_irq(irq_to_desc(irq));
desc = irq_to_desc(irq);
- SET_DEST(entry, logical, cpu_mask_to_apicid(desc->arch.cpu_mask));
+ SET_DEST(entry, logical, get_apic_id());
spin_lock_irqsave(&ioapic_lock, flags);
__ioapic_write_entry(apic, pin, 0, entry);
set_native_irq_info(irq, TARGET_CPUS);
@@ -1843,7 +1843,7 @@ static void __init unlock_ExtINT_logic(v
entry1.dest_mode = 0; /* physical delivery */
entry1.mask = 0; /* unmask IRQ now */
- SET_DEST(entry1, physical, hard_smp_processor_id());
+ SET_DEST(entry1, physical, get_apic_id());
entry1.delivery_mode = dest_ExtINT;
entry1.polarity = entry0.polarity;
entry1.trigger = 0;
x86/IO-APIC: adjust setting of destinations
setup_IO_APIC_irqs() runs before APs get brought up, so using
desc->arch.cpu_mask as best risks it being either empty or having bits
for CPUs other than the BP set. Just use the APIC ID of the only
online CPU directly. Replace a stray hard_smp_processor_id() at once.
Signed-off-by: Jan Beulich <jbeul...@suse.com>
--- a/xen/arch/x86/io_apic.c
+++ b/xen/arch/x86/io_apic.c
@@ -1039,7 +1039,7 @@ static void __init setup_IO_APIC_irqs(vo
disable_8259A_irq(irq_to_desc(irq));
desc = irq_to_desc(irq);
- SET_DEST(entry, logical, cpu_mask_to_apicid(desc->arch.cpu_mask));
+ SET_DEST(entry, logical, get_apic_id());
spin_lock_irqsave(&ioapic_lock, flags);
__ioapic_write_entry(apic, pin, 0, entry);
set_native_irq_info(irq, TARGET_CPUS);
@@ -1843,7 +1843,7 @@ static void __init unlock_ExtINT_logic(v
entry1.dest_mode = 0; /* physical delivery */
entry1.mask = 0; /* unmask IRQ now */
- SET_DEST(entry1, physical, hard_smp_processor_id());
+ SET_DEST(entry1, physical, get_apic_id());
entry1.delivery_mode = dest_ExtINT;
entry1.polarity = entry0.polarity;
entry1.trigger = 0;
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