From: David Woodhouse
This allows a XenDevice implementation to know whether it was created
by QEMU, or merely discovered in XenStore after the toolstack created
it. This will allow us to create frontend/backend nodes only when we
should, rather than unconditionally attempting to overwrite them
was created by QEMU
Xen PV devices in QEMU can be created in two ways: either by QEMU
itself, if they were passed via command line, or by Xen toolstack. In
the latter case, QEMU scans XenStore entries and configures devices
accordingly.
In the second case we don't want QEMU to write/delete
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/8.2 for any
user-visible changes.
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On Tue, 2023-10-24 at 14:29 +0100, David Woodhouse wrote:
>
> > > As a general rule (I'll be doing a bombing run on xen-bus once I get my
> > > patch queue down into single digits) we should never check 'if (*errp)'
> > > to check if a function had an error. It should *also* return a success
> >
From: Mark Cave-Ayland
This function reads the value of the PCI_CLASS_PROG register for PCI IDE
controllers and configures the PCI BARs and/or IDE ioports accordingly.
In the case where we switch to legacy mode, the PCI BARs are set to return zero
(as suggested in the "PCI IDE Controller"
From: Niklas Cassel
Legacy software contains a standard mechanism for generating a reset to a
Serial ATA device - setting the SRST (software reset) bit in the Device
Control register.
Serial ATA has a more robust mechanism called COMRESET, also referred to
as port reset. A port reset is the
From: Mark Cave-Ayland
The via-ide device currently attempts to set the default BAR addresses to the
values shown in the datasheet, but this doesn't work for 2 reasons: firstly
BARS 1-4 do not set the bottom 2 bits to PCI_BASE_ADDRESS_SPACE_IO, and
secondly the initial PCI bus reset clears the
In stream_prepare(), we need to temporarily drop the AioContext lock
that job_prepare_locked() took for us while calling the graph write lock
functions which can poll.
All block nodes related to this block job are in the same AioContext, so
we can pass any of them to bdrv_graph_wrlock()/
bdrv_graph_wrunlock() calls aio_poll(), which may run callbacks that
have a nested event loop. Nested event loops can depend on other
iothreads making progress, so in order to allow them to make progress it
must not hold the AioContext lock of another thread while calling
aio_poll().
This
The following changes since commit af9264da80073435fd78944bc5a46e695897d7e5:
Merge tag '20231119-xtensa-1' of https://github.com/OSLL/qemu-xtensa into
staging (2023-11-20 05:25:19 -0500)
are available in the Git repository at:
https://repo.or.cz/qemu/kevin.git tags/for-upstream
for you to
While not all callers of blk_remove_bs() are correct in this respect,
the assumption in the function is that callers hold the AioContext lock
of the BlockBackend (this is required by the drain calls in it).
In order to avoid deadlock in the nested event loop, bdrv_graph_wrlock()
has then to be
From: Mark Cave-Ayland
These definitions are present in ioport.c which is currently only available when
CONFIG_IDE_ISA is enabled. Move them to the IDE core so that they can be made
available to PCI IDE controllers that support switching to legacy mode.
Signed-off-by: Mark Cave-Ayland
This tests two parallel stream jobs that will complete around the same
time and run on two different disks in the same iothreads. It is loosely
based on the bug report at https://issues.redhat.com/browse/RHEL-1761.
For me, this test hangs reliably with the originally reported bug in
From: Mark Cave-Ayland
Allow the VIA IDE controller to switch between both legacy and native modes by
calling pci_ide_update_mode() to reconfigure the device whenever PCI_CLASS_PROG
is updated.
This patch moves the initial setting of PCI_CLASS_PROG from via_ide_realize() to
via_ide_reset(), and
On Tue, 2023-11-21 at 14:58 +0400, Marc-André Lureau wrote:
>
> > Consistent with the rest of the lines (no conditional compilation nor
> > driver #define..)
> > Reviewed-by: Marc-André Lureau
Thanks.
> > btw, while quickly testing this (do we have any test for xen-console?):
> >
> > $ qemu
On Tue, 21 Nov 2023 at 10:18, Mark Cave-Ayland
wrote:
> In the meantime the department of hacks has been looking at ways of trying to
> set BAR
> addresses during reset, and humbly submits the following for consideration:
> +static void via_ide_bar_reset(void *opaque)
> +{
> +PCIIDEState *d
On 15/11/2023 17:24, David Woodhouse wrote:
From: David Woodhouse
If a Xen console is configured on the command line, do not add a default
serial port.
Signed-off-by: David Woodhouse
---
system/vl.c | 1 +
1 file changed, 1 insertion(+)
Reviewed-by: Paul Durrant
Hi
On Tue, Nov 21, 2023 at 2:57 PM Marc-André Lureau
wrote:
>
> Hi
>
> On Wed, Nov 15, 2023 at 9:28 PM David Woodhouse wrote:
> >
> > From: David Woodhouse
> >
> > If a Xen console is configured on the command line, do not add a default
> > serial port.
> >
> > Signed-off-by: David Woodhouse
Hi
On Wed, Nov 15, 2023 at 9:28 PM David Woodhouse wrote:
>
> From: David Woodhouse
>
> If a Xen console is configured on the command line, do not add a default
> serial port.
>
> Signed-off-by: David Woodhouse
> ---
> system/vl.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git
Am 20.11.2023 um 13:41 hat kvaps geschrieben:
> Hey Alberto,
>
> My article on this design has just been published.
> In this article I talk about the chosen technologies and the
> ReadWriteMany implementation:
>
> https://blog.deckhouse.io/lvm-qcow-csi-driver-shared-san-kubernetes-81455201590e
On 21/11/2023 09:12, Kevin Wolf wrote:
Am 20.11.2023 um 16:02 hat BALATON Zoltan geschrieben:
On Mon, 20 Nov 2023, Mark Cave-Ayland wrote:
On 20/11/2023 13:42, Kevin Wolf wrote:
Am 20.11.2023 um 14:09 hat BALATON Zoltan geschrieben:
On Mon, 20 Nov 2023, Mark Cave-Ayland wrote:
On
Am 20.11.2023 um 16:11 hat BALATON Zoltan geschrieben:
> On Mon, 20 Nov 2023, Kevin Wolf wrote:
> > Am 20.11.2023 um 14:47 hat BALATON Zoltan geschrieben:
> > > On Mon, 20 Nov 2023, Kevin Wolf wrote:
> > > > Am 20.11.2023 um 14:09 hat BALATON Zoltan geschrieben:
> > > > > On Mon, 20 Nov 2023, Mark
Am 20.11.2023 um 16:02 hat BALATON Zoltan geschrieben:
> On Mon, 20 Nov 2023, Mark Cave-Ayland wrote:
> > On 20/11/2023 13:42, Kevin Wolf wrote:
> > > Am 20.11.2023 um 14:09 hat BALATON Zoltan geschrieben:
> > > > On Mon, 20 Nov 2023, Mark Cave-Ayland wrote:
> > > > > On 19/11/2023 21:43, BALATON
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