From: "Michael S. Tsirkin" <mst@redhat.com>
To: virtio-comment@lists.linux.dev
Subject: [PATCH 0/2] support device init for balloon pages
Date: Wed, 22 Apr 2026 12:12:04 -0400 [thread overview]
Message-ID: <cover.1776874126.git.mst@redhat.com> (raw)
Once a page gets out of balloon (on deflate, or on access for
reporting) the Linux guest inits it before giving it to app.
It's a waste - the page is already inited by the host.
Add balloon support for skipping that, that provides significant
performance gains:
https://lore.kernel.org/all/cover.1776808209.git.mst@redhat.com/
Michael S. Tsirkin (2):
balloon: add VIRTIO_BALLOON_F_DEVICE_INIT_REPORTED
balloon: add VIRTIO_BALLOON_F_DEVICE_INIT_DEFLATED
device-types/balloon/description.tex | 108 ++++++++++++++++++++
device-types/balloon/device-conformance.tex | 2 +
device-types/balloon/driver-conformance.tex | 2 +
3 files changed, 112 insertions(+)
--
MST
next reply other threads:[~2026-04-22 16:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-22 16:12 Michael S. Tsirkin [this message]
2026-04-22 16:12 ` [PATCH 1/2] balloon: add VIRTIO_BALLOON_F_DEVICE_INIT_REPORTED Michael S. Tsirkin
2026-04-22 16:12 ` [PATCH 2/2] balloon: add VIRTIO_BALLOON_F_DEVICE_INIT_DEFLATED Michael S. Tsirkin
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