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acpi: cpuhp: document CPHP_GET_CPU_ID_CMD command 

Commit 3a61c8db9d introduced CPHP_GET_CPU_ID_CMD command but
did not sufficiently describe it. Fix it by adding missing command
documentation.

Fixes: 3a61c8db9d ("acpi: cpuhp: add CPHP_GET_CPU_ID_CMD command")
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <1580306781-228371-1-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Igor Mammedov 2020-01-29 15:06:21 +01:00 committed by Michael S. Tsirkin
parent ff1320050a
commit fd9b0830b0
1 changed files with 2 additions and 0 deletions
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2
docs/specs/acpi_cpu_hotplug.txt
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@ -94,6 +94,8 @@ write access:
register in QEMU
2: following writes to 'Command data' register set OST status
register in QEMU
3: following reads from 'Command data' and 'Command data 2' return
architecture specific CPU ID value for currently selected CPU.
other values: reserved
[0x6-0x7] reserved
[0x8] Command data: (DWORD access)