qemu/include/hw/acpi/pc-hotplug.h
Igor Mammedov 80db0e7822 memhp: don't generate memory hotplug AML if it's not enabled/supported
That reduces DSDT by 910 bytes when memory hotplug
isn't enabled.

While doing so drop intermediate variables/arguments
passing around ACPI_MEMORY_HOTPLUG_IO_LEN and making
it local to memory_hotplug.c, hardcoding it there as
it can't change.

Also don't pass around ACPI_MEMORY_HOTPLUG_BASE through
intermediate variables/arguments where it's not needed.
Instead initialize in module static variable when MMIO
region is mapped and use that within memory_hotplug.c
whenever it's required.
That way MMIO base specified only at one place and AML
with MMIO would always use the same value.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
2017-01-10 07:03:24 +02:00

35 lines
829 B
C

/*
* QEMU ACPI hotplug utilities shared defines
*
* Copyright (C) 2014 Red Hat Inc
*
* Authors:
* Igor Mammedov <imammedo@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef PC_HOTPLUG_H
#define PC_HOTPLUG_H
/*
* ONLY DEFINEs are permited in this file since it's shared
* between C and ASL code.
*/
/* 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
#define CPU_HOTPLUG_RESOURCE_DEVICE PRES
#define ACPI_MEMORY_HOTPLUG_BASE 0x0a00
#endif