diff options
| author | Paulo Alcantara <pcacjr@gmail.com> | 2015-06-28 14:58:56 -0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-07-07 13:12:22 +0300 |
| commit | 920557971b60e53c2f3f22e5d6c620ab1ed411fd (patch) | |
| tree | 5630d4b1c74b28ba22273d5980ecedcbe367fa38 /include/hw/boards.h | |
| parent | 71ba2f0af398f616e154137d9fdda25c2da01324 (diff) | |
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>
Diffstat (limited to 'include/hw/boards.h')
| -rw-r--r-- | include/hw/boards.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/hw/boards.h b/include/hw/boards.h index 6379901528..2aec9cbb12 100644 --- a/include/hw/boards.h +++ b/include/hw/boards.h @@ -99,7 +99,8 @@ struct MachineClass { no_floppy:1, no_cdrom:1, no_sdcard:1, - has_dynamic_sysbus:1; + has_dynamic_sysbus:1, + no_tco:1; int is_default; const char *default_machine_opts; const char *default_boot_order; |