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acpi: cpuhp: implement hot-remove parts of CPU hotplug interface

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it adds hw registers needed for handling CPU hot-remove and
corresponding AML methods to request and eject a CPU with
necessary hotplug callbacks in pc,piix4,ich9 code.

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>
This commit is contained in:
Igor Mammedov 2016-06-14 16:14:02 +02:00 • committed by Michael S. Tsirkin
parent d2238cb678
commit 8872c25a26
6 changed files with 158 additions and 5 deletions
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5
hw/acpi/trace-events
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@ -23,5 +23,8 @@ cpuhp_acpi_read_flags(uint32_t idx, uint8_t flags) "idx[0x%"PRIx32"] flags: 0x%"
cpuhp_acpi_write_idx(uint32_t idx) "set active cpu idx: 0x%"PRIx32
cpuhp_acpi_write_cmd(uint32_t idx, uint8_t cmd) "idx[0x%"PRIx32"] cmd: 0x%"PRIx8
cpuhp_acpi_read_cmd_data(uint32_t idx, uint32_t data) "idx[0x%"PRIx32"] data: 0x%"PRIx32
cpuhp_acpi_cpu_has_events(uint32_t idx, bool ins) "idx[0x%"PRIx32"] inserting: %d"
cpuhp_acpi_cpu_has_events(uint32_t idx, bool ins, bool rm) "idx[0x%"PRIx32"] inserting: %d, removing: %d"
cpuhp_acpi_clear_inserting_evt(uint32_t idx) "idx[0x%"PRIx32"]"
cpuhp_acpi_clear_remove_evt(uint32_t idx) "idx[0x%"PRIx32"]"
cpuhp_acpi_ejecting_invalid_cpu(uint32_t idx) "0x%"PRIx32
cpuhp_acpi_ejecting_cpu(uint32_t idx) "0x%"PRIx32