arm: Adjust irqchips only on arch_config_commit

Doing this earlier, during arch_cell_create, does not work because the
CPUs have not yet been assigned to their new owner at this point. Should
have noticed earlier: this aligns ARM with x86.

Fixes: 011ab91 ("arm: Rework interrupt affinity management on cell
creation")

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

hypervisor/arch/arm/control.c

@@ -422,6 +422,7 @@ void arch_flush_cell_vcpu_caches(struct cell *cell)
 
 void arch_config_commit(struct cell *cell_added_removed)
 {
+	irqchip_config_commit(cell_added_removed);
 }
 
 void __attribute__((noreturn)) arch_panic_stop(void)

hypervisor/arch/arm/include/asm/irqchip.h

@@ -66,6 +66,8 @@ void irqchip_cpu_shutdown(struct per_cpu *cpu_data);
 int irqchip_cell_init(struct cell *cell);
 void irqchip_cell_exit(struct cell *cell);
 
+void irqchip_config_commit(struct cell *cell_added_removed);
+
 int irqchip_send_sgi(struct sgi *sgi);
 void irqchip_handle_irq(struct per_cpu *cpu_data);
 void irqchip_eoi_irq(u32 irqn, bool deactivate);

hypervisor/arch/arm/irqchip.c

@@ -187,13 +187,6 @@ int irqchip_cell_init(struct cell *cell)
 				~chip->pin_bitmap[pos];
 	}
 
-	for (n = 32; n < sizeof(cell->arch.irq_bitmap) * 8; n++) {
-		if (irqchip_irq_in_cell(cell, n))
-			irqchip.adjust_irq_target(cell, n);
-		if (irqchip_irq_in_cell(&root_cell, n))
-			irqchip.adjust_irq_target(&root_cell, n);
-	}
-
 	return 0;
 }
 
@@ -229,6 +222,21 @@ void irqchip_cell_exit(struct cell *cell)
 		irqchip.cell_exit(cell);
 }
 
+void irqchip_config_commit(struct cell *cell_added_removed)
+{
+	unsigned int n;
+
+	if (!cell_added_removed)
+		return;
+
+	for (n = 32; n < sizeof(cell_added_removed->arch.irq_bitmap) * 8; n++) {
+		if (irqchip_irq_in_cell(cell_added_removed, n))
+			irqchip.adjust_irq_target(cell_added_removed, n);
+		if (irqchip_irq_in_cell(&root_cell, n))
+			irqchip.adjust_irq_target(&root_cell, n);
+	}
+}
+
 int irqchip_init(void)
 {
 	int i, err;