We will reuse build_cpus_aml to build DSDT cpus aml in arm/virt
ACPI to realize cpu hotplug. Three points are added.
1. Make ACPI IO address space configurable, because ARM64 platforms
don't use port IO for ACPI IO space.
2. Add GICC struct building support in _MAT of cpu aml.
3. Let the hotplug method parameter can be NULL, because ACPI GED
will realize it.
Besides, CPU CPPC building is injected.
Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
(cherry picked from commit 4d7c437b4d1a8ac175e7b9224a9e402b619d6cd3)
This series is an attempt to provide CPU hotplug support on ARM
virt platform. This is based on ACPI GED device.
We should enable ACPI support, and use vGICv3 and 64bit CPU to
support CPU hotplug.
Under KVM accel, the KVM vCPUs is pre-created. Besides, vGIC IRIs
is pre-created too. However, QEMU vCPU objects are defer-created.
Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
