During ioapic hotplug, acpi_register_ioapic will be called.
Now for x86, that function is blank.
Fill that will update __mp_register_ioapic to use those ioapic.
Signed-off-by: Yinghai Lu <ying...@kernel.org>
---
arch/x86/kernel/acpi/boot.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 7190d0d..5dca557 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -700,16 +700,18 @@ EXPORT_SYMBOL(acpi_unmap_lsapic);
int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
{
- /* TBD */
- return -EINVAL;
+ unsigned long long id = 0;
+
+ acpi_evaluate_integer(handle, "_UID", NULL, &id);
+
+ return __mp_register_ioapic(id, phys_addr, gsi_base, true);
}
EXPORT_SYMBOL(acpi_register_ioapic);
int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base)
{
- /* TBD */
- return -EINVAL;
+ return mp_unregister_ioapic(gsi_base);
}
EXPORT_SYMBOL(acpi_unregister_ioapic);
--
1.8.1.4
--
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