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

…

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

…

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

…

nmi.c

…

null-machine.c

…

or-irq.c

…

platform-bus.c

…

ptimer.c

…

qdev-fw.c

…

qdev-properties-system.c

…

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

…

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