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File _service:tar_scm:arm-virt-Add-cpu-hotplug-events-to-GED-during-creati.patch of Package qemu
From f8914ec04d4d892520aa443eaf8018c80516adee Mon Sep 17 00:00:00 2001 From: Salil Mehta <salil.mehta@huawei.com> Date: Sun, 6 Aug 2023 16:27:01 +0000 Subject: [PATCH] arm/virt: Add cpu hotplug events to GED during creation Add CPU Hotplug event to the set of supported ged-events during the creation of GED device during VM init. Also initialize the memory map for CPU Hotplug control device used in event exchanges between Qemu/VMM and the guest. Signed-off-by: Salil Mehta <salil.mehta@huawei.com> --- hw/arm/virt.c | 5 ++++- include/hw/arm/virt.h | 1 + 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 78ed3c4ba8..155000f22f 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -78,6 +78,7 @@ #include "hw/mem/pc-dimm.h" #include "hw/mem/nvdimm.h" #include "hw/acpi/generic_event_device.h" +#include "hw/acpi/cpu_hotplug.h" #include "hw/virtio/virtio-md-pci.h" #include "hw/virtio/virtio-iommu.h" #include "hw/char/pl011.h" @@ -157,6 +158,7 @@ static const MemMapEntry base_memmap[] = { [VIRT_NVDIMM_ACPI] = { 0x09090000, NVDIMM_ACPI_IO_LEN}, [VIRT_PVTIME] = { 0x090a0000, 0x00010000 }, [VIRT_SECURE_GPIO] = { 0x090b0000, 0x00001000 }, + [VIRT_CPUHP_ACPI] = { 0x090c0000, ACPI_CPU_HOTPLUG_REG_LEN}, [VIRT_MMIO] = { 0x0a000000, 0x00000200 }, [VIRT_CPUFREQ] = { 0x0b000000, 0x00010000 }, /* ...repeating for a total of NUM_VIRTIO_TRANSPORTS, each of that size */ @@ -725,7 +727,7 @@ static inline DeviceState *create_acpi_ged(VirtMachineState *vms) DeviceState *dev; MachineState *ms = MACHINE(vms); int irq = vms->irqmap[VIRT_ACPI_GED]; - uint32_t event = ACPI_GED_PWR_DOWN_EVT; + uint32_t event = ACPI_GED_PWR_DOWN_EVT | ACPI_GED_CPU_HOTPLUG_EVT; if (ms->ram_slots) { event |= ACPI_GED_MEM_HOTPLUG_EVT; @@ -741,6 +743,7 @@ static inline DeviceState *create_acpi_ged(VirtMachineState *vms) 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_mmio_map(SYS_BUS_DEVICE(dev), 3, vms->memmap[VIRT_CPUHP_ACPI].base); sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, qdev_get_gpio_in(vms->gic, irq)); return dev; diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index c2fde0522c..5de0185063 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -76,6 +76,7 @@ enum { VIRT_PCDIMM_ACPI, VIRT_ACPI_GED, VIRT_NVDIMM_ACPI, + VIRT_CPUHP_ACPI, VIRT_PVTIME, VIRT_LOWMEMMAP_LAST, }; -- 2.27.0
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