| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | [efi] Disable EFI watchdog timer when shutting down to boot an OS | Michael Brown | 2021-11-25 | 1 | -0/+34 |
| | | | | | | | | | | | | | | | | The UEFI specification mandates that the EFI watchdog timer should be disabled by the platform firmware as part of the ExitBootServices() call, but some platforms (e.g. Hyper-V) are observed to occasionally forget to do so, resulting in a reboot approximately five minutes after starting the operating system. Work around these firmware bugs by disabling the watchdog timer ourselves. Requested-by: Andreas Hammarskjöld <junior@2PintSoftware.com> Tested-by: Andreas Hammarskjöld <junior@2PintSoftware.com> Signed-off-by: Michael Brown <mcb30@ipxe.org> | ||||
| * | [efi] Add missing "ULL" suffix on 64-bit constant | Michael Brown | 2015-08-03 | 1 | -1/+1 |
| | | | | | | | Older versions of gcc complain if this suffix is missing. Signed-off-by: Michael Brown <mcb30@ipxe.org> | ||||
| * | [efi] Hold off watchdog timer while running | Michael Brown | 2015-08-03 | 1 | -0/+82 |
| UEFI platforms may provide a watchdog timer, which will reboot the machine if an operating system takes more than five minutes to load. This can cause long-lived iPXE downloads (or interactive shell sessions) to unexpectedly reboot. Fix by resetting the watchdog timer every ten seconds while the iPXE main processing loop continues to run. Reported-by: Bradley B Williams <bradleybwilliams@swbell.net> Reported-by: John Clark <john.r.clark.3@gmail.com> Reported-by: wdriever@gmail.com Reported-by: Charlie Beima <cbeima@indiana.edu> Signed-off-by: Michael Brown <mcb30@ipxe.org> | |||||
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