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| author | Akihiko Odaki | 2021-02-25 01:12:39 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi | 2021-03-15 10:48:53 +0100 |
| commit | fb0b154c801e3447e505de420195fb7038695941 (patch) | |
| tree | a060af2e30b44fddad72be77331c4dad8ca12b61 /hw/core | |
| parent | Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-6.0-pull-re... (diff) | |
| download | qemu-fb0b154c801e3447e505de420195fb7038695941.tar.gz qemu-fb0b154c801e3447e505de420195fb7038695941.tar.xz qemu-fb0b154c801e3447e505de420195fb7038695941.zip | |
virtio-blk: Respect discard granularity
Report the configured granularity for discard operation to the
guest. If this is not set use the block size.
Since until now we have ignored the configured discard granularity
and always reported the block size, let's add
'report-discard-granularity' property and disable it for older
machine types to avoid migration issues.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20210225001239.47046-1-akihiko.odaki@gmail.com>
Diffstat (limited to 'hw/core')
| -rw-r--r-- | hw/core/machine.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/core/machine.c b/hw/core/machine.c index 4386f57b5c..4c1a4a4c32 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -39,6 +39,7 @@ GlobalProperty hw_compat_5_2[] = { { "ICH9-LPC", "smm-compat", "on"}, { "PIIX4_PM", "smm-compat", "on"}, + { "virtio-blk-device", "report-discard-granularity", "off" }, }; const size_t hw_compat_5_2_len = G_N_ELEMENTS(hw_compat_5_2); |