c025e9059a
- coro: support live patch for libcare
- tests/acpi: Update expected ACPI tables for vcpu hotplug(update BinDir)
- arm/virt: Require mc->has_hotpluggable_cpus for cold-plugged vcpu
- arm/virt: Consider has_ged when set mc->has_hotpluggable_cpus
- arm/virt-acpi: Require possible_cpu_arch_ids for build_cpus_aml()
- acpi/ged: Remove cpuhp field of ged
- acpi/ged: Init cpu hotplug only when machine support it
- intc/gicv3: Fixes for vcpu hotplug
- arm/kvm: Set psci smccc filter only with vcpu hotplug
- accel/kvm: Use correct id for parked vcpu
- arm/virt: Fix adjudgement of core_id for vcpu hotplugged
- arm/virt.c: Convey local_err when set psci-conduit
- system/cpus: Fix resume_all_vcpus() under vCPU hotplug condition
- system/cpus: Fix pause_all_vcpus() under concurrent environment
- acpi/cpu: Fix cpu_hotplug_hw_init()
- arm/cpu: Some fixes for arm_cpu_unrealizefn()
- system/physmem: Fix possible double free when destroy cpu as
- hw/arm/virt: Expose cold-booted CPUs as MADT GICC Enabled
- tcg/mttcg: enable threads to unregister in tcg_ctxs[]
- hw/arm: Support hotplug capability check using _OSC method
- target/arm/kvm,tcg: Register/Handle SMCCC hypercall exits to VMM/Qemu
- target/arm/kvm: Write CPU state back to KVM on reset
- target/arm: Add support of *unrealize* ARMCPU during vCPU Hot-unplug
- physmem,gdbstub: Common helping funcs/changes to *unrealize* vCPU
- hw/arm: Changes required for reset and to support next boot
- arm/virt: Update the guest(via GED) about CPU hot-(un)plug events
- hw/intc/arm-gicv3*: Changes required to (re)init the vCPU register info
- hw/arm,gicv3: Changes to update GIC with vCPU hot-plug notification
- arm/virt: Changes to (un)wire GICC<->vCPU IRQs during hot-(un)plug
- arm/virt: Add/update basic hot-(un)plug framework
- hw/acpi: Update ACPI GED framework to support vCPU Hotplug
- arm/virt: Release objects for *disabled* possible vCPUs after init
- hw/acpi: Make _MAT method optional
- hw/arm: MADT Tbl change to size the guest with possible vCPUs
- hw/acpi: Update GED _EVT method AML with cpu scan
- hw/acpi: ACPI/AML Changes to reflect the correct _STA.{PRES,ENA} Bits to Guest
- arm/virt: Make ARM vCPU *present* status ACPI *persistent*
- arm/virt/acpi: Build CPUs AML with CPU Hotplug support
- tests/acpi/bios-tables-test: Allow changes to virt/DSDT file
- acpi/cpu: Add cpu_cppc building support
- arm/virt/acpi: Factor out CPPC building from DSDT CPU aml
- hw/acpi: Update CPUs AML with cpu-(ctrl)dev change
- arm/virt: Create GED dev before *disabled* CPU Objs are destroyed
- arm/virt: Add cpu hotplug events to GED during creation
- hw/acpi: Init GED framework with cpu hotplug events
- hw/acpi: Use qemu_present_cpu() API in ACPI CPU hotplug init
- hw/acpi: Add ACPI CPU hotplug init stub
- arm/acpi: Enable ACPI support for vcpu hotplug
- hw/acpi: Move CPU ctrl-dev MMIO region len macro to common header file
- arm/virt: Init PMU at host for all possible vcpus
- arm/virt,gicv3: Changes to pre-size GIC with possible vcpus @machine init
- arm/virt,kvm: Pre-create disabled possible vCPUs @machine init
- accel/kvm: Extract common KVM vCPU {creation,parking} code
- arm/virt,target/arm: Machine init time change common to vCPU {cold|hot}-plug
- hw/arm/virt: Move setting of common CPU properties in a function
- cpus-common: Add common CPU utility for possible vCPUs
- arm/virt,target/arm: Add new ARMCPU {socket,cluster,core,thread}-id property
Signed-off-by: Jiabo Feng <fengjiabo1@huawei.com>
52 lines
1.9 KiB
Diff
52 lines
1.9 KiB
Diff
From 37aab238363c8242aa76853396c4f272b5508bca Mon Sep 17 00:00:00 2001
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From: Salil Mehta <salil.mehta@huawei.com>
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Date: Mon, 8 Jun 2020 15:25:35 +0100
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Subject: [PATCH] arm/acpi: Enable ACPI support for vcpu hotplug
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ACPI is required to interface QEMU with the guest. Roughly falls into below
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cases,
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1. Convey the possible vcpus config at the machine init time to the guest
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using various DSDT tables like MADT etc.
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2. Convey vcpu hotplug events to guest(using GED)
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3. Assist in evaluation of various ACPI methods(like _EVT, _STA, _OST, _EJ0,
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_MAT etc.)
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4. Provides ACPI cpu hotplug state and 12 Byte memory mapped cpu hotplug
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control register interface to the OSPM/guest corresponding to each possible
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vcpu. The register interface consists of various R/W fields and their
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handling operations. These are called when ever register fields or memory
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regions are accessed(i.e. read or written) by OSPM when ever it evaluates
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various ACPI methods.
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Note: lot of this framework code is inherited from the changes already done for
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x86 but still some minor changes are required to make it compatible with
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ARM64.)
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This patch enables the ACPI support for virtual cpu hotplug. ACPI changes
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required will follow in subsequent patches.
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Co-developed-by: Salil Mehta <salil.mehta@huawei.com>
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Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
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Co-developed-by: Keqian Zhu <zhukeqian1@huawei.com>
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Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
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Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
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---
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hw/arm/Kconfig | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
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index 3ada335a24..c0a7d0bd58 100644
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--- a/hw/arm/Kconfig
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+++ b/hw/arm/Kconfig
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@@ -29,6 +29,7 @@ config ARM_VIRT
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select ACPI_HW_REDUCED
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select ACPI_APEI
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select ACPI_VIOT
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+ select ACPI_CPU_HOTPLUG
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select VIRTIO_MEM_SUPPORTED
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select ACPI_CXL
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select ACPI_HMAT
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--
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2.27.0
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