osdev

The virtio_scsi driver enqueues buffers to the eventq but does not actually handle them on completion. The following events could be reported to the driver which require some action to be taken:

• transport reset: This may occur as a result of hotplug events or a device being reset. Sense codes cannot be relied on when new devices or busses appear, so this event needs to be handled.
• asynchro

Affected: Firmware targeting EFI < 1.10 and UEFI drivers that do not use BootServices.open_protocol and BootServices.close_protocol.

Prior to EFI 1.10, the EFI_BOOT_SERVICES.UninstallProtocolInterface function lacks the safety checks that were added in 1.10. It simply removes a protocol from a handle, and if the last protocol is removed from a handle, that handle is freed by firmware and

the binary memory map describes only one space, starting with the physical address 0x00100000
process the rest of the memory map entries and describe them in a binary memory map