This is in preparation for adding support for ARM64 platforms
where it doesn't use port mapped IO for ACPI IO space.
Also move the MEMORY_SLOT_SCAN_METHOD/MEMORY_DEVICES_CONTAINER
definitions to header so that other memory hotplug event
signalling mechanisms (eg. Generic Event Device on HW-reduced
acpi platforms) can use the same from their respective event
handler aml code.
Signed-off-by: Shameer Kolothum <shameerali.kolothum.th...@huawei.com>
Reviewed-by: Eric Auger <eric.au...@redhat.com>
---
hw/acpi/memory_hotplug.c | 24 ++++++++++++++----------
hw/i386/acpi-build.c | 3 ++-
include/hw/acpi/memory_hotplug.h | 8 ++++++--
3 files changed, 22 insertions(+), 13 deletions(-)
diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c
index 297812d..80e25f0 100644
--- a/hw/acpi/memory_hotplug.c
+++ b/hw/acpi/memory_hotplug.c
@@ -29,12 +29,10 @@
#define MEMORY_SLOT_PROXIMITY_METHOD "MPXM"
#define MEMORY_SLOT_EJECT_METHOD "MEJ0"
#define MEMORY_SLOT_NOTIFY_METHOD "MTFY"
-#define MEMORY_SLOT_SCAN_METHOD "MSCN"
#define MEMORY_HOTPLUG_DEVICE "MHPD"
#define MEMORY_HOTPLUG_IO_LEN 24
-#define MEMORY_DEVICES_CONTAINER "\\_SB.MHPC"
-static uint16_t memhp_io_base;
+static hwaddr memhp_io_base;
static ACPIOSTInfo *acpi_memory_device_status(int slot, MemStatus *mdev)
{
@@ -209,7 +207,7 @@ static const MemoryRegionOps acpi_memory_hotplug_ops = {
};
void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner,
- MemHotplugState *state, uint16_t io_base)
+ MemHotplugState *state, hwaddr io_base)
{
MachineState *machine = MACHINE(qdev_get_machine());
@@ -342,7 +340,8 @@ const VMStateDescription vmstate_memory_hotplug = {
void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem,
const char *res_root,
- const char *event_handler_method)
+ const char *event_handler_method,
+ AmlRegionSpace rs)
{
int i;
Aml *ifctx;
@@ -365,14 +364,19 @@ void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem,
aml_name_decl("_UID", aml_string("Memory hotplug resources")));
crs = aml_resource_template();
- aml_append(crs,
- aml_io(AML_DECODE16, memhp_io_base, memhp_io_base, 0,
- MEMORY_HOTPLUG_IO_LEN)
- );
+ if (rs == AML_SYSTEM_IO) {
+ aml_append(crs,
+ aml_io(AML_DECODE16, memhp_io_base, memhp_io_base, 0,
+ MEMORY_HOTPLUG_IO_LEN)
+ );
+ } else {
+ aml_append(crs, aml_memory32_fixed(memhp_io_base,
+ MEMORY_HOTPLUG_IO_LEN, AML_READ_WRITE));
+ }
aml_append(mem_ctrl_dev, aml_name_decl("_CRS", crs));
aml_append(mem_ctrl_dev, aml_operation_region(
- MEMORY_HOTPLUG_IO_REGION, AML_SYSTEM_IO,
+ MEMORY_HOTPLUG_IO_REGION, rs,
aml_int(memhp_io_base), MEMORY_HOTPLUG_IO_LEN)
);
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 416da31..6d6de44 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1852,7 +1852,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
build_cpus_aml(dsdt, machine, opts, pm->cpu_hp_io_base,
"\\_SB.PCI0", "\\_GPE._E02");
}
- build_memory_hotplug_aml(dsdt, nr_mem, "\\_SB.PCI0", "\\_GPE._E03");
+ build_memory_hotplug_aml(dsdt, nr_mem, "\\_SB.PCI0",
+ "\\_GPE._E03", AML_SYSTEM_IO);
scope = aml_scope("_GPE");
{
diff --git a/include/hw/acpi/memory_hotplug.h b/include/hw/acpi/memory_hotplug.h
index 77c6576..f95aa1f 100644
--- a/include/hw/acpi/memory_hotplug.h
+++ b/include/hw/acpi/memory_hotplug.h
@@ -5,6 +5,9 @@
#include "hw/acpi/acpi.h"
#include "hw/acpi/aml-build.h"
+#define MEMORY_SLOT_SCAN_METHOD "MSCN"
+#define MEMORY_DEVICES_CONTAINER "\\_SB.MHPC"
+
/**
* MemStatus:
* @is_removing: the memory device in slot has been requested to be ejected.
@@ -29,7 +32,7 @@ typedef struct MemHotplugState {
} MemHotplugState;
void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner,
- MemHotplugState *state, uint16_t io_base);
+ MemHotplugState *state, hwaddr io_base);
void acpi_memory_plug_cb(HotplugHandler *hotplug_dev, MemHotplugState *mem_st,
DeviceState *dev, Error **errp);
@@ -48,5 +51,6 @@ void acpi_memory_ospm_status(MemHotplugState *mem_st,
ACPIOSTInfoList ***list);
void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem,
const char *res_root,
- const char *event_handler_method);
+ const char *event_handler_method,
+ AmlRegionSpace rs);
#endif
--
2.7.4
