From 1d14ac5af04fab9ee734cc4c810f022df6745278 Mon Sep 17 00:00:00 2001 From: Eduardo Habkost Date: Fri, 14 Mar 2014 16:33:50 -0300 Subject: [PATCH] acpi: Add ACPI_CPU_HOTPLUG_ID_LIMIT macro The new macro will be helpful to allow us to detect too large SMP limits before it is too late. Signed-off-by: Eduardo Habkost Reviewed-by: Laszlo Ersek Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- include/hw/acpi/cpu_hotplug_defs.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/hw/acpi/cpu_hotplug_defs.h b/include/hw/acpi/cpu_hotplug_defs.h index 2725b50aac..9f33663511 100644 --- a/include/hw/acpi/cpu_hotplug_defs.h +++ b/include/hw/acpi/cpu_hotplug_defs.h @@ -17,7 +17,15 @@ * between C and ASL code. */ #define ACPI_CPU_HOTPLUG_STATUS 4 + +/* Limit for CPU arch IDs for CPU hotplug. All hotpluggable CPUs should + * have CPUClass.get_arch_id() < ACPI_CPU_HOTPLUG_ID_LIMIT. + */ +#define ACPI_CPU_HOTPLUG_ID_LIMIT 256 + +/* 256 CPU IDs, 8 bits per entry: */ #define ACPI_GPE_PROC_LEN 32 + #define ICH9_CPU_HOTPLUG_IO_BASE 0x0CD8 #define PIIX4_CPU_HOTPLUG_IO_BASE 0xaf00 -- 2.11.0