From 3ef77acab21210b7d0853bf95798f8e0e748e500 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Mon, 2 Jun 2014 15:25:16 +0200 Subject: acpi: memory hotplug ACPI hardware implementation - implements QEMU hardware part of memory hotplug protocol described at "docs/specs/acpi_mem_hotplug.txt" - handles only memory add notification event for now Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- include/hw/acpi/memory_hotplug.h | 29 +++++++++++++++++++++++++++++ include/hw/acpi/pc-hotplug.h | 3 +++ 2 files changed, 32 insertions(+) create mode 100644 include/hw/acpi/memory_hotplug.h (limited to 'include/hw/acpi') diff --git a/include/hw/acpi/memory_hotplug.h b/include/hw/acpi/memory_hotplug.h new file mode 100644 index 0000000000..8f90f72fdb --- /dev/null +++ b/include/hw/acpi/memory_hotplug.h @@ -0,0 +1,29 @@ +#ifndef QEMU_HW_ACPI_MEMORY_HOTPLUG_H +#define QEMU_HW_ACPI_MEMORY_HOTPLUG_H + +#include "hw/qdev-core.h" +#include "hw/acpi/acpi.h" + +#define ACPI_MEMORY_HOTPLUG_STATUS 8 + +typedef struct MemStatus { + DeviceState *dimm; + bool is_enabled; + bool is_inserting; + uint32_t ost_event; + uint32_t ost_status; +} MemStatus; + +typedef struct MemHotplugState { + MemoryRegion io; + uint32_t selector; + uint32_t dev_count; + MemStatus *devs; +} MemHotplugState; + +void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner, + MemHotplugState *state); + +void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq, MemHotplugState *mem_st, + DeviceState *dev, Error **errp); +#endif diff --git a/include/hw/acpi/pc-hotplug.h b/include/hw/acpi/pc-hotplug.h index cee479de63..01d38e2e7e 100644 --- a/include/hw/acpi/pc-hotplug.h +++ b/include/hw/acpi/pc-hotplug.h @@ -29,4 +29,7 @@ #define ICH9_CPU_HOTPLUG_IO_BASE 0x0CD8 #define PIIX4_CPU_HOTPLUG_IO_BASE 0xaf00 +#define ACPI_MEMORY_HOTPLUG_IO_LEN 24 +#define ACPI_MEMORY_HOTPLUG_BASE 0x0a00 + #endif -- cgit v1.2.3