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| author | Igor Mammedov <imammedo@redhat.com> | 2014-01-09 17:36:32 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2014-01-26 13:11:44 +0200 |
| commit | d6610bc2adc19a632cb14fc094378cbf5cd60868 (patch) | |
| tree | a7d8021f8a74f11780b538c04793a63280043331 /docs | |
| parent | 81cea5e7f2aa61c6c5d33d28bceb81276603d3c9 (diff) | |
| download | qemu-d6610bc2adc19a632cb14fc094378cbf5cd60868.tar.gz | |
acpi: ich9: add CPU hotplug handling to Q35 machine
.. use IO port 0cd8-0xcf7 range for CPU present bitmap
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/specs/acpi_cpu_hotplug.txt | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/specs/acpi_cpu_hotplug.txt b/docs/specs/acpi_cpu_hotplug.txt index f6f577457d..340b751a95 100644 --- a/docs/specs/acpi_cpu_hotplug.txt +++ b/docs/specs/acpi_cpu_hotplug.txt @@ -10,7 +10,9 @@ ACPI GPE block (IO ports 0xafe0-0xafe3, byte access): Generic ACPI GPE block. Bit 2 (GPE.2) used to notify CPU hot-add/remove event to ACPI BIOS, via SCI interrupt. -CPU present bitmap (IO port 0xaf00-0xaf1f, 1-byte access): +CPU present bitmap for: + ICH9-LPC (IO port 0x0cd8-0xcf7, 1-byte access) + PIIX-PM (IO port 0xaf00-0xaf1f, 1-byte access) --------------------------------------------------------------- One bit per CPU. Bit position reflects corresponding CPU APIC ID. Read-only. |