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-rw-r--r--hw/arm/Kconfig4
-rw-r--r--hw/arm/virt-acpi-build.c35
-rw-r--r--hw/arm/virt.c124
3 files changed, 148 insertions, 15 deletions
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index 76a2a6bcbf..c6e7782580 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -20,6 +20,10 @@ config ARM_VIRT
select SMBIOS
select VIRTIO_MMIO
select ACPI_PCI
+ select MEM_DEVICE
+ select DIMM
+ select ACPI_MEMORY_HOTPLUG
+ select ACPI_HW_REDUCED
config CHEETAH
bool
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 6cdf156cf5..4cd50175e0 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -39,6 +39,8 @@
#include "hw/acpi/aml-build.h"
#include "hw/acpi/utils.h"
#include "hw/acpi/pci.h"
+#include "hw/acpi/memory_hotplug.h"
+#include "hw/acpi/generic_event_device.h"
#include "hw/pci/pcie_host.h"
#include "hw/pci/pci.h"
#include "hw/arm/virt.h"
@@ -48,7 +50,6 @@
#include "migration/vmstate.h"
#define ARM_SPI_BASE 32
-#define ACPI_POWER_BUTTON_DEVICE "PWRB"
static void acpi_dsdt_add_cpus(Aml *scope, int smp_cpus)
{
@@ -544,6 +545,14 @@ build_srat(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
}
}
+ if (ms->device_memory) {
+ numamem = acpi_data_push(table_data, sizeof *numamem);
+ build_srat_memory(numamem, ms->device_memory->base,
+ memory_region_size(&ms->device_memory->mr),
+ ms->numa_state->num_nodes - 1,
+ MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED);
+ }
+
build_header(linker, table_data, (void *)(table_data->data + srat_start),
"SRAT", table_data->len - srat_start, 3, NULL, NULL);
}
@@ -708,6 +717,7 @@ static void
build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
{
Aml *scope, *dsdt;
+ MachineState *ms = MACHINE(vms);
const MemMapEntry *memmap = vms->memmap;
const int *irqmap = vms->irqmap;
@@ -730,8 +740,27 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
(irqmap[VIRT_MMIO] + ARM_SPI_BASE), NUM_VIRTIO_TRANSPORTS);
acpi_dsdt_add_pci(scope, memmap, (irqmap[VIRT_PCIE] + ARM_SPI_BASE),
vms->highmem, vms->highmem_ecam);
- acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO],
- (irqmap[VIRT_GPIO] + ARM_SPI_BASE));
+ if (vms->acpi_dev) {
+ build_ged_aml(scope, "\\_SB."GED_DEVICE,
+ HOTPLUG_HANDLER(vms->acpi_dev),
+ irqmap[VIRT_ACPI_GED] + ARM_SPI_BASE, AML_SYSTEM_MEMORY,
+ memmap[VIRT_ACPI_GED].base);
+ } else {
+ acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO],
+ (irqmap[VIRT_GPIO] + ARM_SPI_BASE));
+ }
+
+ if (vms->acpi_dev) {
+ uint32_t event = object_property_get_uint(OBJECT(vms->acpi_dev),
+ "ged-event", &error_abort);
+
+ if (event & ACPI_GED_MEM_HOTPLUG_EVT) {
+ build_memory_hotplug_aml(scope, ms->ram_slots, "\\_SB", NULL,
+ AML_SYSTEM_MEMORY,
+ memmap[VIRT_PCDIMM_ACPI].base);
+ }
+ }
+
acpi_dsdt_add_power_button(scope);
aml_append(dsdt, scope);
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index d74538b021..d4bedc2607 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -68,6 +68,9 @@
#include "hw/arm/smmuv3.h"
#include "hw/acpi/acpi.h"
#include "target/arm/internals.h"
+#include "hw/mem/pc-dimm.h"
+#include "hw/mem/nvdimm.h"
+#include "hw/acpi/generic_event_device.h"
#define DEFINE_VIRT_MACHINE_LATEST(major, minor, latest) \
static void virt_##major##_##minor##_class_init(ObjectClass *oc, \
@@ -138,6 +141,8 @@ static const MemMapEntry base_memmap[] = {
[VIRT_GPIO] = { 0x09030000, 0x00001000 },
[VIRT_SECURE_UART] = { 0x09040000, 0x00001000 },
[VIRT_SMMU] = { 0x09050000, 0x00020000 },
+ [VIRT_PCDIMM_ACPI] = { 0x09070000, MEMORY_HOTPLUG_IO_LEN },
+ [VIRT_ACPI_GED] = { 0x09080000, ACPI_GED_EVT_SEL_LEN },
[VIRT_MMIO] = { 0x0a000000, 0x00000200 },
/* ...repeating for a total of NUM_VIRTIO_TRANSPORTS, each of that size */
[VIRT_PLATFORM_BUS] = { 0x0c000000, 0x02000000 },
@@ -173,6 +178,7 @@ static const int a15irqmap[] = {
[VIRT_PCIE] = 3, /* ... to 6 */
[VIRT_GPIO] = 7,
[VIRT_SECURE_UART] = 8,
+ [VIRT_ACPI_GED] = 9,
[VIRT_MMIO] = 16, /* ...to 16 + NUM_VIRTIO_TRANSPORTS - 1 */
[VIRT_GIC_V2M] = 48, /* ...to 48 + NUM_GICV2M_SPIS - 1 */
[VIRT_SMMU] = 74, /* ...to 74 + NUM_SMMU_IRQS - 1 */
@@ -525,6 +531,29 @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms)
}
}
+static inline DeviceState *create_acpi_ged(VirtMachineState *vms, qemu_irq *pic)
+{
+ DeviceState *dev;
+ MachineState *ms = MACHINE(vms);
+ int irq = vms->irqmap[VIRT_ACPI_GED];
+ uint32_t event = ACPI_GED_PWR_DOWN_EVT;
+
+ if (ms->ram_slots) {
+ event |= ACPI_GED_MEM_HOTPLUG_EVT;
+ }
+
+ dev = qdev_create(NULL, TYPE_ACPI_GED);
+ qdev_prop_set_uint32(dev, "ged-event", event);
+
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_ACPI_GED].base);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, vms->memmap[VIRT_PCDIMM_ACPI].base);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[irq]);
+
+ qdev_init_nofail(dev);
+
+ return dev;
+}
+
static void create_its(VirtMachineState *vms, DeviceState *gicdev)
{
const char *itsclass = its_class_name();
@@ -764,13 +793,15 @@ static void create_rtc(const VirtMachineState *vms, qemu_irq *pic)
static DeviceState *gpio_key_dev;
static void virt_powerdown_req(Notifier *n, void *opaque)
{
- /* use gpio Pin 3 for power button event */
- qemu_set_irq(qdev_get_gpio_in(gpio_key_dev, 0), 1);
-}
+ VirtMachineState *s = container_of(n, VirtMachineState, powerdown_notifier);
-static Notifier virt_system_powerdown_notifier = {
- .notify = virt_powerdown_req
-};
+ if (s->acpi_dev) {
+ acpi_send_event(s->acpi_dev, ACPI_POWER_DOWN_STATUS);
+ } else {
+ /* use gpio Pin 3 for power button event */
+ qemu_set_irq(qdev_get_gpio_in(gpio_key_dev, 0), 1);
+ }
+}
static void create_gpio(const VirtMachineState *vms, qemu_irq *pic)
{
@@ -812,10 +843,6 @@ static void create_gpio(const VirtMachineState *vms, qemu_irq *pic)
KEY_POWER);
qemu_fdt_setprop_cells(vms->fdt, "/gpio-keys/poweroff",
"gpios", phandle, 3, 0);
-
- /* connect powerdown request */
- qemu_register_powerdown_notifier(&virt_system_powerdown_notifier);
-
g_free(nodename);
}
@@ -1489,6 +1516,7 @@ static void machvirt_init(MachineState *machine)
MemoryRegion *ram = g_new(MemoryRegion, 1);
bool firmware_loaded;
bool aarch64 = true;
+ bool has_ged = !vmc->no_ged;
unsigned int smp_cpus = machine->smp.cpus;
unsigned int max_cpus = machine->smp.max_cpus;
@@ -1701,7 +1729,15 @@ static void machvirt_init(MachineState *machine)
create_pcie(vms, pic);
- create_gpio(vms, pic);
+ if (has_ged && aarch64 && firmware_loaded && acpi_enabled) {
+ vms->acpi_dev = create_acpi_ged(vms, pic);
+ } else {
+ create_gpio(vms, pic);
+ }
+
+ /* connect powerdown request */
+ vms->powerdown_notifier.notify = virt_powerdown_req;
+ qemu_register_powerdown_notifier(&vms->powerdown_notifier);
/* Create mmio transports, so the user can create virtio backends
* (which will be automatically plugged in to the transports). If
@@ -1876,6 +1912,52 @@ static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms)
return ms->possible_cpus;
}
+static void virt_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
+ Error **errp)
+{
+ VirtMachineState *vms = VIRT_MACHINE(hotplug_dev);
+ const bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
+
+ if (is_nvdimm) {
+ error_setg(errp, "nvdimm is not yet supported");
+ return;
+ }
+
+ if (!vms->acpi_dev) {
+ error_setg(errp,
+ "memory hotplug is not enabled: missing acpi-ged device");
+ return;
+ }
+
+ pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), NULL, errp);
+}
+
+static void virt_memory_plug(HotplugHandler *hotplug_dev,
+ DeviceState *dev, Error **errp)
+{
+ HotplugHandlerClass *hhc;
+ VirtMachineState *vms = VIRT_MACHINE(hotplug_dev);
+ Error *local_err = NULL;
+
+ pc_dimm_plug(PC_DIMM(dev), MACHINE(vms), &local_err);
+ if (local_err) {
+ goto out;
+ }
+
+ hhc = HOTPLUG_HANDLER_GET_CLASS(vms->acpi_dev);
+ hhc->plug(HOTPLUG_HANDLER(vms->acpi_dev), dev, &error_abort);
+out:
+ error_propagate(errp, local_err);
+}
+
+static void virt_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev,
+ DeviceState *dev, Error **errp)
+{
+ if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
+ virt_memory_pre_plug(hotplug_dev, dev, errp);
+ }
+}
+
static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
@@ -1887,12 +1969,23 @@ static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev,
SYS_BUS_DEVICE(dev));
}
}
+ if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
+ virt_memory_plug(hotplug_dev, dev, errp);
+ }
+}
+
+static void virt_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev,
+ DeviceState *dev, Error **errp)
+{
+ error_setg(errp, "device unplug request for unsupported device"
+ " type: %s", object_get_typename(OBJECT(dev)));
}
static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine,
DeviceState *dev)
{
- if (object_dynamic_cast(OBJECT(dev), TYPE_SYS_BUS_DEVICE)) {
+ if (object_dynamic_cast(OBJECT(dev), TYPE_SYS_BUS_DEVICE) ||
+ (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM))) {
return HOTPLUG_HANDLER(machine);
}
@@ -1956,8 +2049,11 @@ static void virt_machine_class_init(ObjectClass *oc, void *data)
mc->kvm_type = virt_kvm_type;
assert(!mc->get_hotplug_handler);
mc->get_hotplug_handler = virt_machine_get_hotplug_handler;
+ hc->pre_plug = virt_machine_device_pre_plug_cb;
hc->plug = virt_machine_device_plug_cb;
+ hc->unplug_request = virt_machine_device_unplug_request_cb;
mc->numa_mem_supported = true;
+ mc->auto_enable_numa_with_memhp = true;
}
static void virt_instance_init(Object *obj)
@@ -2058,8 +2154,12 @@ DEFINE_VIRT_MACHINE_AS_LATEST(4, 2)
static void virt_machine_4_1_options(MachineClass *mc)
{
+ VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc));
+
virt_machine_4_2_options(mc);
compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len);
+ vmc->no_ged = true;
+ mc->auto_enable_numa_with_memhp = false;
}
DEFINE_VIRT_MACHINE(4, 1)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 11:48:14 +0000