| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | [efi] Raise TPL within EFI_USB_IO_PROTOCOL entry points | Michael Brown | 2018-02-20 | 1 | -6/+41 |
| | | | | | Signed-off-by: Michael Brown <mcb30@ipxe.org> | ||||
| * | [efi] Run at TPL_CALLBACK to protect against UEFI timers | Michael Brown | 2018-02-20 | 1 | -46/+2 |
| | | | | | | | | | | | | | | | | | | | | As noted in the comments, UEFI manages to combines the all of the worst aspects of both a polling design (inefficiency and inability to sleep until something interesting happens) and of an interrupt-driven design (the complexity of code that could be preempted at any time, thanks to UEFI timers). This causes problems in particular for UEFI USB keyboards: the keyboard driver calls UsbAsyncInterruptTransfer() to set up a periodic timer which is used to poll the USB bus. This poll may interrupt a critical section within iPXE, typically resulting in list corruption and either a hang or reboot. Work around this problem by mirroring the BIOS design, in which we run with interrupts disabled almost all of the time. Signed-off-by: Michael Brown <mcb30@ipxe.org> | ||||
| * | [usb] Allow USB endpoints to specify a reserved header length for refills | Michael Brown | 2016-01-19 | 1 | -1/+1 |
| | | | | | Signed-off-by: Michael Brown <mcb30@ipxe.org> | ||||
| * | [efi] Expose unused USB devices via EFI_USB_IO_PROTOCOL | Michael Brown | 2015-09-14 | 1 | -0/+1305 |
| Allow the UEFI platform firmware to provide drivers for unrecognised devices, by exposing our own implementation of EFI_USB_IO_PROTOCOL. Signed-off-by: Michael Brown <mcb30@ipxe.org> | |||||
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