qemu-patch-raspberry4/hw/core
Stefano Garzarella 5c81161f80 virtio-blk: add "discard" and "write-zeroes" properties
In order to avoid migration issues, we enable DISCARD and
WRITE_ZEROES features only for machine type >= 4.0

As discussed with Michael S. Tsirkin and Stefan Hajnoczi on the
list [1], DISCARD operation should not have security implications
(eg. page cache attacks), so we can enable it by default.

[1] https://lists.gnu.org/archive/html/qemu-devel/2019-02/msg00504.html

Suggested-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20190221103314.58500-4-sgarzare@redhat.com
Message-Id: <20190221103314.58500-4-sgarzare@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-02-22 09:42:16 +00:00
..
bus.c qdev: pass an Object * to qbus_set_hotplug_handler() 2019-02-17 21:54:02 +11:00
empty_slot.c core/empty_slot: Convert sysbus init function to realize function 2018-12-13 13:47:57 +00:00
fw-path-provider.c
generic-loader.c elf: Add optional function ptr to load_elf() to parse ELF notes 2019-02-05 16:50:16 +01:00
hotplug.c call HotplugHandler->plug() as the last step in device realization 2018-10-19 13:44:12 +02:00
irq.c
loader-fit.c
loader.c hw/core/loader.c: Read as long as possible in load_image_size() 2019-02-05 16:50:18 +01:00
machine.c virtio-blk: add "discard" and "write-zeroes" properties 2019-02-22 09:42:16 +00:00
Makefile.objs hw/core: Move null-machine into the common-obj list 2018-10-24 07:27:25 +01:00
nmi.c
null-machine.c hw/core: Move null-machine into the common-obj list 2018-10-24 07:27:25 +01:00
or-irq.c
platform-bus.c
ptimer.c ptimer: Add TRIGGER_ONLY_ON_DECREMENT policy option 2018-07-09 14:51:34 +01:00
qdev-fw.c
qdev-properties-system.c hw: set_netdev: remove useless code 2018-12-11 18:28:46 +01:00
qdev-properties.c qdev-props: call object_apply_global_props() 2019-01-07 16:18:42 +04:00
qdev.c * HAX support for Linux hosts (Alejandro) 2019-01-11 15:46:09 +00:00
register.c
reset.c qemu/queue.h: leave head structs anonymous unless necessary 2019-01-11 15:46:55 +01:00
split-irq.c
stream.c
sysbus.c core/sysbus: remove the SysBusDeviceClass::init path 2018-12-13 13:48:03 +00:00
uboot_image.h Support u-boot noload images for arm as used by, NetBSD/evbarm GENERIC kernel. 2019-01-07 15:46:20 +00:00