diff options
Diffstat (limited to 'docs/specs')
| -rw-r--r-- | docs/specs/acpi_cpu_hotplug.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/specs/acpi_cpu_hotplug.txt b/docs/specs/acpi_cpu_hotplug.txt index cb99cf3c8e..a8ce5e7402 100644 --- a/docs/specs/acpi_cpu_hotplug.txt +++ b/docs/specs/acpi_cpu_hotplug.txt @@ -47,6 +47,7 @@ read access: [0x0-0x3] Command data 2: (DWORD access) if value last stored in 'Command field': 0: reads as 0x0 + 3: upper 32 bits of architecture specific CPU ID value other values: reserved [0x4] CPU device status fields: (1 byte access) bits: @@ -61,6 +62,8 @@ read access: [0x8] Command data: (DWORD access) contains 0 unless value last stored in 'Command field' is one of: 0: contains 'CPU selector' value of a CPU with pending event[s] + 3: lower 32 bits of architecture specific CPU ID value + (in x86 case: APIC ID) write access: offset: |