The GET_EVENT_STATUS_NOTIFICATION ATAPI command is listed as a mandatory command in the spec but we don't really implement it any of its sub-commands.
The commit message for the last commit explains why implementing just the media subcommand is helpful and how it goes a long way in getting guests to behave as expected. The difference from the RFC series sent earlier is: - Split into more patches - Add tray open/close notification (from Markus) There certainly is much more work to be done for the other commands and also for state change handling (tray open / close / new media) overall for the block layer, but this is a good first step in being spec-compliant and at the same time making guests work. Please apply! Amit Shah (5): atapi: Allow GET_EVENT_STATUS_NOTIFICATION after media change ide: Move GET_EVENT_STATUS_NOTIFICATION command handling to its own function atapi: GESN: Spin off No Event Available handling into own function atapi: GESN: Add enums for commonly-used field types atapi: Implement 'media' subcommand of GET_EVENT_STATUS_NOTIFICATION command hw/ide/core.c | 172 +++++++++++++++++++++++++++++++++++++++++++++++----- hw/ide/internal.h | 6 ++ 2 files changed, 161 insertions(+), 17 deletions(-) -- 1.7.4.2