2 commits

Author	SHA1	Message	Date
Daniel Verkamp	95a8868aef	qcow: implement WriteZeroes for QcowFile ... Add a simple implementation of WriteZeroes for QcowFile that just writes zeroes to allocated clusters and skips clusters that are already unallocated (since they already read back as zeroes). BUG=chromium:850998 TEST=cargo test -p qcow Change-Id: I8f26c8cc4016c129850aaf08c7188dfe08d6dacb Signed-off-by: Daniel Verkamp <dverkamp@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/1187018 Reviewed-by: Dylan Reid <dgreid@chromium.org> Reviewed-by: Zach Reizner <zachr@chromium.org>	2018-09-05 01:25:50 -07:00
Dylan Reid	76968703ad	Add qcow support crate ... QCOW2 files will be used to store the VM's data on ChromeOS. Add support for basic reading and writing of qcow files. CQ-DEPEND=CL:872451 BUG=none TEST=qcow unit tests and use "qemu-image check" to verify generated qcow files. Change-Id: I4b9e77e58edca69f894ede19e79ebd2cd7b2623e Signed-off-by: Dylan Reid <dgreid@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/862628 Reviewed-by: Stephen Barber <smbarber@chromium.org>	2018-01-19 23:29:52 -08:00