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Igor Mammedov 3a61c8db9d acpi: cpuhp: add CPHP_GET_CPU_ID_CMD command 
Firmware can enumerate present at boot APs by broadcasting wakeup IPI,
so that woken up secondary CPUs could register them-selves.
However in CPU hotplug case, it would need to know architecture
specific CPU IDs for possible and hotplugged CPUs so it could
prepare environment for and wake hotplugged AP.

Reuse and extend existing CPU hotplug interface to return architecture
specific ID for currently selected CPU in 2 registers:
 - lower 32 bits in ACPI_CPU_CMD_DATA_OFFSET_RW
 - upper 32 bits in ACPI_CPU_CMD_DATA2_OFFSET_R

On x86, firmware will use CPHP_GET_CPU_ID_CMD for fetching the APIC ID
when handling hotplug SMI.

Later, CPHP_GET_CPU_ID_CMD will be used on ARM to retrieve MPIDR,
which serves the similar to APIC ID purpose.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1575896942-331151-10-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
 		2020-01-22 00:23:07 -05:00
..
config docs: Grammar and spelling fixes 2018-07-13 10:16:04 +01:00
devel Add cpu_{ld,st}*_mmuidx_ra 2020-01-17 12:13:17 +00:00
interop virtio, pci, pc: fixes, features 2020-01-07 16:25:00 +00:00
specs acpi: cpuhp: add CPHP_GET_CPU_ID_CMD command 2020-01-22 00:23:07 -05:00
sphinx docs: import Linux kernel-doc script and extension 2019-12-17 19:36:32 +01:00
spin docs: create config/, devel/ and spin/ subdirectories 2017-06-07 18:22:03 +02:00
COLO-FT.txt doc: fix typos for documents in tree 2019-03-06 10:40:21 +01:00
amd-memory-encryption.txt doc: fix typos for documents in tree 2019-03-06 10:40:21 +01:00
arm-cpu-features.rst docs: fix rst syntax errors in unbuilt docs 2019-12-19 16:20:21 +00:00
barrier.txt ui: add an embedded Barrier client 2019-09-17 13:43:22 +02:00
block-replication.txt docs: block replication's description 2016-09-13 11:00:56 +01:00
bootindex.txt docs qemu-doc: Avoid ide-drive, it's deprecated 2017-06-04 18:42:55 +03:00
can.txt doc: fix typos for documents in tree 2019-03-06 10:40:21 +01:00
ccid.txt libcacard: improve documentation 2014-06-10 07:44:01 +02:00
colo-proxy.txt doc: fix typos for documents in tree 2019-03-06 10:40:21 +01:00
conf.py docs/conf.py: Enable use of kerneldoc sphinx extension 2019-12-17 19:36:57 +01:00
cpu-hotplug.rst docs/cpu-hotplug.rst: Fix rST markup issues 2019-03-07 14:26:44 +00:00
generic-loader.txt docs/generic-loader: mention U-Boot and Intel HEX executable formats 2018-08-20 11:24:31 +01:00
hyperv.txt i386/kvm: add NoNonArchitecturalCoreSharing Hyper-V enlightenment 2019-10-22 09:38:42 +02:00
igd-assign.txt vfio/pci: Add IGD documentation 2016-05-26 11:12:05 -06:00
image-fuzzer.txt docs: List all image elements currently supported by the fuzzer 2014-09-22 11:39:35 +01:00
index.html.in docs: build an index page for the HTML docs 2020-01-12 11:42:41 +01:00
index.rst docs: provide documentation on the POWER9 XIVE interrupt controller 2019-05-29 11:39:47 +10:00
memory-hotplug.txt docs: Grammar and spelling fixes 2018-07-13 10:16:04 +01:00
microvm.rst docs/microvm.rst: add instructions for shutting down the guest 2019-11-19 10:01:34 +01:00
multi-thread-compression.txt Replace '-enable-kvm' with '-accel kvm' in docs and help texts 2018-06-28 19:05:32 +02:00
multiseat.txt tests/docker/test-mingw and docs: Remove --with-sdlabi=2.0 2019-02-04 15:25:21 +00:00
nvdimm.txt docs/nvdimm: add example on persistent backend setup 2019-09-16 06:27:35 -04:00
pci_expander_bridge.txt pxb: cleanup 2016-03-11 16:59:12 +02:00
pcie.txt docs: pcie: Spell out machine type needs for PCIe features 2018-03-01 16:25:37 +02:00
pcie_pci_bridge.txt pci: removed the is_express field since a uniform interface was inserted 2018-02-08 21:06:41 +02:00
pr-manager.rst scsi: add multipath support to qemu-pr-helper 2017-09-22 21:07:27 +02:00
pvrdma.txt hw/pvrdma: Remove max-sge command-line param 2019-01-19 10:31:24 +02:00
qcow2-cache.txt qcow2: Default to 4KB for the qcow2 cache entry size 2019-03-08 12:26:45 +01:00
qdev-device-use.txt qemu-options: Remove deprecated "-virtioconsole" option 2019-02-05 16:50:19 +01:00
qemu-block-drivers.texi qemu-doc: Do not hard-code the name of the QEMU binary 2019-09-05 13:18:52 +02:00
qemu-cpu-models.texi qemu-doc: Do not hard-code the name of the QEMU binary 2019-09-05 13:18:52 +02:00
qemu_logo.pdf docs: add qemu logo to pdf 2017-01-16 10:11:43 +01:00
qemupciserial.inf docs: Grammar and spelling fixes 2018-07-13 10:16:04 +01:00
rdma.txt doc: fix typos for documents in tree 2019-03-06 10:40:21 +01:00
replay.txt replay: record and replay random number sources 2020-01-07 12:08:39 +01:00
security.texi doc: document that the monitor console is a privileged control interface 2019-07-19 14:21:08 +01:00
spice-port-fqdn.txt docs: add spice-port-fqdn.txt 2012-12-17 14:01:41 +01:00
throttle.txt docs: Fix description of the leaky bucket algorithm in throttle.txt 2016-09-13 18:12:34 +03:00
usb-storage.txt usb: Fix typo in documentation 2017-01-24 23:26:52 +03:00
usb2.txt docs/usb2.txt: ehci has six ports 2018-08-21 10:22:03 +02:00
vfio-ap.txt doc: fix typos for documents in tree 2019-03-06 10:40:21 +01:00
virtio-balloon-stats.txt Remove the deprecated -balloon option 2018-08-31 09:52:13 +02:00
virtio-net-failover.rst docs: fix rst syntax errors in unbuilt docs 2019-12-19 16:20:21 +00:00
virtio-pmem.rst docs: fix rst syntax errors in unbuilt docs 2019-12-19 16:20:21 +00:00
xbzrle.txt docs/xbzrle: correction 2016-10-13 17:23:53 +02:00
xen-save-devices-state.txt Fix up dangling references to qmp-commands.* in comment and doc 2018-03-02 13:48:26 -06:00