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[PATCH RFC V2 24/37] hw/acpi: Update ACPI GED framework to support vCPU
From: |
Salil Mehta |
Subject: |
[PATCH RFC V2 24/37] hw/acpi: Update ACPI GED framework to support vCPU Hotplug |
Date: |
Tue, 26 Sep 2023 11:04:23 +0100 |
ACPI GED shall be used to convey to the guest kernel about any CPU hot-(un)plug
events. Therefore, existing ACPI GED framework inside QEMU needs to be enhanced
to support CPU hotplug state and events.
Co-developed-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Co-developed-by: Keqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
hw/acpi/generic_event_device.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index ad252e6a91..0266733a54 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -12,6 +12,7 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/acpi/acpi.h"
+#include "hw/acpi/cpu.h"
#include "hw/acpi/generic_event_device.h"
#include "hw/irq.h"
#include "hw/mem/pc-dimm.h"
@@ -239,6 +240,8 @@ static void acpi_ged_device_plug_cb(HotplugHandler
*hotplug_dev,
} else {
acpi_memory_plug_cb(hotplug_dev, &s->memhp_state, dev, errp);
}
+ } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
+ acpi_cpu_plug_cb(hotplug_dev, &s->cpuhp_state, dev, errp);
} else {
error_setg(errp, "virt: device plug request for unsupported device"
" type: %s", object_get_typename(OBJECT(dev)));
@@ -253,6 +256,8 @@ static void acpi_ged_unplug_request_cb(HotplugHandler
*hotplug_dev,
if ((object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) &&
!(object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)))) {
acpi_memory_unplug_request_cb(hotplug_dev, &s->memhp_state, dev, errp);
+ } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
+ acpi_cpu_unplug_request_cb(hotplug_dev, &s->cpuhp_state, dev, errp);
} else {
error_setg(errp, "acpi: device unplug request for unsupported device"
" type: %s", object_get_typename(OBJECT(dev)));
@@ -266,6 +271,8 @@ static void acpi_ged_unplug_cb(HotplugHandler *hotplug_dev,
if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
acpi_memory_unplug_cb(&s->memhp_state, dev, errp);
+ } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
+ acpi_cpu_unplug_cb(&s->cpuhp_state, dev, errp);
} else {
error_setg(errp, "acpi: device unplug for unsupported device"
" type: %s", object_get_typename(OBJECT(dev)));
@@ -277,6 +284,7 @@ static void acpi_ged_ospm_status(AcpiDeviceIf *adev,
ACPIOSTInfoList ***list)
AcpiGedState *s = ACPI_GED(adev);
acpi_memory_ospm_status(&s->memhp_state, list);
+ acpi_cpu_ospm_status(&s->cpuhp_state, list);
}
static void acpi_ged_send_event(AcpiDeviceIf *adev, AcpiEventStatusBits ev)
@@ -291,6 +299,8 @@ static void acpi_ged_send_event(AcpiDeviceIf *adev,
AcpiEventStatusBits ev)
sel = ACPI_GED_PWR_DOWN_EVT;
} else if (ev & ACPI_NVDIMM_HOTPLUG_STATUS) {
sel = ACPI_GED_NVDIMM_HOTPLUG_EVT;
+ } else if (ev & ACPI_CPU_HOTPLUG_STATUS) {
+ sel = ACPI_GED_CPU_HOTPLUG_EVT;
} else {
/* Unknown event. Return without generating interrupt. */
warn_report("GED: Unsupported event %d. No irq injected", ev);
--
2.34.1
- [PATCH RFC V2 19/37] hw/acpi: ACPI/AML Changes to reflect the correct _STA.{PRES, ENA} Bits to Guest, (continued)
- [PATCH RFC V2 19/37] hw/acpi: ACPI/AML Changes to reflect the correct _STA.{PRES, ENA} Bits to Guest, Salil Mehta, 2023/09/26
- [PATCH RFC V2 20/37] hw/acpi: Update GED _EVT method AML with cpu scan, Salil Mehta, 2023/09/26
- [PATCH RFC V2 21/37] hw/arm: MADT Tbl change to size the guest with possible vCPUs, Salil Mehta, 2023/09/26
- [PATCH RFC V2 22/37] hw/acpi: Make _MAT method optional, Salil Mehta, 2023/09/26
- [PATCH RFC V2 23/37] arm/virt: Release objects for *disabled* possible vCPUs after init, Salil Mehta, 2023/09/26
- [PATCH RFC V2 24/37] hw/acpi: Update ACPI GED framework to support vCPU Hotplug,
Salil Mehta <=
- Re: [PATCH RFC V2 24/37] hw/acpi: Update ACPI GED framework to support vCPU Hotplug, Michael S. Tsirkin, 2023/09/26
- RE: [PATCH RFC V2 24/37] hw/acpi: Update ACPI GED framework to support vCPU Hotplug, Salil Mehta, 2023/09/26
- Re: [PATCH RFC V2 24/37] hw/acpi: Update ACPI GED framework to support vCPU Hotplug, Michael S. Tsirkin, 2023/09/26
- RE: [PATCH RFC V2 24/37] hw/acpi: Update ACPI GED framework to support vCPU Hotplug, Salil Mehta, 2023/09/26
- Re: [PATCH RFC V2 24/37] hw/acpi: Update ACPI GED framework to support vCPU Hotplug, lixianglai, 2023/09/26
[PATCH RFC V2 25/37] arm/virt: Add/update basic hot-(un)plug framework, Salil Mehta, 2023/09/26
[PATCH RFC V2 26/37] arm/virt: Changes to (un)wire GICC<->vCPU IRQs during hot-(un)plug, Salil Mehta, 2023/09/26
[PATCH RFC V2 27/37] hw/arm, gicv3: Changes to update GIC with vCPU hot-plug notification, Salil Mehta, 2023/09/26
[PATCH RFC V2 28/37] hw/intc/arm-gicv3*: Changes required to (re)init the vCPU register info, Salil Mehta, 2023/09/26