From: Hans de Goede <hdegoede@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH 00/10] ehci: various fixes
Date: Wed, 14 Nov 2012 17:21:35 +0100 [thread overview]
Message-ID: <1352910105-10272-1-git-send-email-hdegoede@redhat.com> (raw)
While working on moving usb-redir and usb-hid over to using async packet
handling for their interrupt input endpoints. I've found and fixed quite
a few ehci bugs.
Unfortunately the moving to async for interrupt endpoints turns out to be a
bad idea, as it causes issues for migration, an async completed packet will
not getting written back to guest memory until the next poll time, and if a
migration happens in between it will get lost!
So now I'm working on making all qemu usb-devices call wakeup when they
have interrupt data ready (something which is needed for xhci anyways),
and then we can still slowdown the frame timer when there are no isoc packets
in the periodic schedule, using the wakeup as a notifier to run the frame-timer
earlier.
While I'm working on this, the ehci fixes can already go upstream, as they
are ready and have been extensively tested.
Regards,
Hans
next reply other threads:[~2012-11-14 16:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-14 16:21 Hans de Goede [this message]
2012-11-14 16:21 ` [Qemu-devel] [PATCH 01/10] ehci: Don't access packet after freeing it Hans de Goede
2012-11-14 16:21 ` [Qemu-devel] [PATCH 02/10] ehci: Fixup q->qtdaddr after cancelling an already completed packet Hans de Goede
2012-11-14 16:21 ` [Qemu-devel] [PATCH 03/10] ehci: Better detection for qtd-s linked in circles Hans de Goede
2012-11-14 16:21 ` [Qemu-devel] [PATCH 04/10] ehci: Add a ehci_writeback_async_complete_packet helper function Hans de Goede
2012-11-14 16:21 ` [Qemu-devel] [PATCH 05/10] ehci: Add ehci_verify_qh and ehci_verify_qtd helper functions Hans de Goede
2012-11-14 16:21 ` [Qemu-devel] [PATCH 06/10] ehci: Verify guest does not change the token of inflight qtd-s Hans de Goede
2012-11-14 16:21 ` [Qemu-devel] [PATCH 07/10] ehci: Don't verify the next pointer for periodic qh-s Hans de Goede
2012-11-14 16:21 ` [Qemu-devel] [PATCH 08/10] ehci: Move get / put_dwords upwards Hans de Goede
2012-11-14 16:21 ` [Qemu-devel] [PATCH 09/10] ehci: writeback_async_complete_packet: verify qh and qtd Hans de Goede
2012-11-14 16:21 ` [Qemu-devel] [PATCH 10/10] ehci: Verify qtd for async completed packets Hans de Goede
2012-11-15 8:55 ` [Qemu-devel] [PATCH 00/10] ehci: various fixes Gerd Hoffmann
2012-11-15 11:58 ` Hans de Goede
2012-11-15 12:06 ` Gerd Hoffmann
2012-11-15 12:11 ` Gerd Hoffmann
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