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acpi: factor out common cpu hotplug code for PIIX4/Q35

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.. so it could be used for adding CPU hotplug to Q35 machine

Add an additional header with that will be shared between
C and ASL code: include/hw/acpi/cpu_hotplug_defs.h

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>
This commit is contained in:
Igor Mammedov 2014-01-09 17:36:31 +01:00 • committed by Michael S. Tsirkin
parent 99fd437dee
commit 81cea5e7f2
5 changed files with 120 additions and 72 deletions
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27
include/hw/acpi/cpu_hotplug.h Normal file
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/*
* QEMU ACPI hotplug utilities
*
* Copyright (C) 2013 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 ACPI_HOTPLUG_H
#define ACPI_HOTPLUG_H
#include "hw/acpi/acpi.h"
#include "hw/acpi/cpu_hotplug_defs.h"
typedef struct AcpiCpuHotplug {
MemoryRegion io;
uint8_t sts[ACPI_GPE_PROC_LEN];
} AcpiCpuHotplug;
void AcpiCpuHotplug_add(ACPIGPE *gpe, AcpiCpuHotplug *g, CPUState *cpu);
void AcpiCpuHotplug_init(MemoryRegion *parent, Object *owner,
AcpiCpuHotplug *gpe_cpu, uint16_t base);
#endif

22
include/hw/acpi/cpu_hotplug_defs.h Normal file
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/*
* QEMU ACPI hotplug utilities shared defines
*
* Copyright (C) 2013 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 ACPI_HOTPLUG_DEFS_H
#define ACPI_HOTPLUG_DEFS_H
/*
* ONLY DEFINEs are permited in this file since it's shared
* between C and ASL code.
*/
#define ACPI_CPU_HOTPLUG_STATUS 4
#define ACPI_GPE_PROC_LEN 32
#endif