qemu-patch-raspberry4/hw/acpi
Paulo Alcantara 920557971b ich9: add TCO interface emulation
This interface provides some registers within a 32-byte range and can be
acessed through PCI-to-LPC bridge interface (PMBASE + 0x60).

It's commonly used as a watchdog timer to detect system lockups through
SMIs that are generated -- if TCO_EN bit is set -- on every timeout. If
NO_REBOOT bit is not set in GCS (General Control and Status register),
the system will be resetted upon second timeout if TCO_RLD register
wasn't previously written to prevent timeout.

This patch adds support to TCO watchdog logic and few other features
like mapping NMIs to SMIs (NMI2SMI_EN bit), system intruder detection,
etc. are not implemented yet.

Signed-off-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-07-07 13:12:22 +03:00
..
acpi_interface.c acpi: introduce TYPE_ACPI_DEVICE_IF interface 2014-06-19 18:44:22 +03:00
aml-build.c acpi: add implementation of aml_while() term 2015-06-03 18:19:16 +02:00
bios-linker-loader.c bios linker: validate pointer within table 2015-02-26 12:42:15 +01:00
core.c acpi: mark PMTIMER as unlocked 2015-07-01 15:45:51 +02:00
cpu_hotplug.c acpi: add acpi_send_gpe_event() to rise sci for hotplug 2015-06-03 18:19:16 +02:00
ich9.c ich9: add TCO interface emulation 2015-07-07 13:12:22 +03:00
Makefile.objs ich9: add TCO interface emulation 2015-07-07 13:12:22 +03:00
memory_hotplug.c acpi: add acpi_send_gpe_event() to rise sci for hotplug 2015-06-03 18:19:16 +02:00
pcihp.c acpi: add acpi_send_gpe_event() to rise sci for hotplug 2015-06-03 18:19:16 +02:00
piix4.c pc_piix: rename kvm_enabled to smm_enabled 2015-07-06 17:59:44 +02:00
tco.c ich9: add TCO interface emulation 2015-07-07 13:12:22 +03:00