Greg Kurz d0267da614 virtio-blk: Configure all host notifiers in a single MR transaction ... This allows the virtio-blk-pci device to batch the setup of all its host notifiers. This significantly improves boot time of VMs with a high number of vCPUs, e.g. from 3m26.186s down to 0m58.023s for a pseries machine with 384 vCPUs. Note that memory_region_transaction_commit() must be called before virtio_bus_cleanup_host_notifier() because the latter might close ioeventfds that the transaction still assumes to be around when it commits. Signed-off-by: Greg Kurz <groug@kaod.org> Message-Id: <20210407143501.244343-3-groug@kaod.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2021-05-14 10:26:18 -04:00
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meson.build	meson: convert hw/block	2020-08-21 06:30:32 -04:00
trace-events
trace.h	trace: switch position of headers to what Meson requires	2020-08-21 06:18:24 -04:00
virtio-blk.c	virtio-blk: Configure all host notifiers in a single MR transaction	2021-05-14 10:26:18 -04:00
virtio-blk.h
xen-block.c	block: Separate blk_is_writable() and blk_supports_write_perm()	2021-01-27 20:45:20 +01:00
xen-block.h