In the very least, a change like this requires discussion on the list.
The naming convention is goofy and it causes a massive merge problem. Something
like this _must_ be presented on the list first so people can provide input
and cope with it.
This reverts commit 99a0949b72.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Fix another place with =- to be "= -".
to avoid confusion with old-style "-="
(which we also have, and needs to be fixed).
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Modern compilers do not parse "=-" as decrement:
you must use "-=" for that. Same for "=+"/"+=".
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Put space between = and - assigning a negative number
to avoid confusion with old-style "-="
(which we also have, and needs to be fixed).
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Use TRACE macro to allow different logging flags.
* Add new debugging messages and clean existing ones.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Replace:
if (-1 == foo())
with:
if (foo() == -1)
While this coding style is not in direct contravention of our currently
ratified CODING_STYLE treaty, it could be argued that the Article 3 of
the European Convention on Human Rights (prohibiting torture and "inhuman
or degrading treatment") reads on the matter.
[This commit message was brought to you without humour, as is evidenced
by the absence of any emoticons]
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
The CPU state parameter is not used, remove it and adjust callers. Now we
can compile ioport.c once for all targets.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Callers must pass ELF machine, byte swapping and symbol LSB clearing
information to ELF loader. A.out loader needs page size information, pass
that too as a parameter.
Extract prototypes to a separate file. Move loader.[ch] and elf_ops.h under hw.
Adjust callers. Also use target_phys_addr_t instead of target_ulong for
addresses: loader addresses aren't virtual.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Well one problem seems to be the rx condition,
... if ((s->ier & UART_IER_RDI) && (s->lsr & UART_LSR_DR))
is not enough to trigger an irq, yet still causes the following
conditions not to be checked anymore at all.
Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de>
Acked-by: Jan Kiszka <jan.kiszka@web.de>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
With this patch applied ide drives (when attached to a pci adapter) can
be created via -device, like this:
-drive if=none,id=mydisk,file=/path/to/disk.img
-device ide-drive,drive=mydisk,bus=ide.0,unit=0
Note that creating a master on ide1 doesn't work that way. That is a
side effect of qemu creating a cdrom automagically even if you don't
ask for it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This allows the ide bus being initialized without drives attached
and the drives being attached and initialization later on as
separate step.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Like pci_create_simple() but doesn't call qdev_init(), so one can
set properties before initializing the device.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
The serial ports should be present even if associated with a null device
as some firmware wants to initialize them.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
When creating null devices, there is no way to ensure the unicity of
the labels. Bail out with an error message instead.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Changes:
* added isa bus, hooked up to the system bus. Not sure this is correct,
but 'info pci' lists lists no pci-isa bridge in the machine ...).
* switches the default cpu to one which actually works.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Recent versions of the Linux kernel will not preempt CPU-intensive
tasks unless the clock used by sched_clock() works. On -M versatilepb
that's the 24MHz timer in the system controller. It's a very simple
timer, so implement it.
Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Problem: Our file sys-queue.h is a copy of the BSD file, but there are
some additions and it's not entirely compatible. Because of that, there have
been conflicts with system headers on BSD systems. Some hacks have been
introduced in the commits 15cc923584,
f40d753718,
96555a96d7 and
3990d09adf but the fixes were fragile.
Solution: Avoid the conflict entirely by renaming the functions and the
file. Revert the previous hacks.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
We can't move fifo back to an embeded array because it needs to be aligned
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This naming was used in kvm tree, and is easier to remember
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
vmsd alone is not enugh, because we can have several structs saved with the same description (vmsd).
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Use DO_UPCAST() instead of container_of() to go from PCIDevice to
I6300State. This ensures that PCIDevice is the first member of struct
I6300State.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Hello,
In some cases bus driver can deassert "bus master" bit in PCI command
register. The driver will no longer be able to update related registers in
the device. Eventually it will cause QEMU to exit in "virtqueue_num_heads"
function.
Attached path that fixes the described issue.
Best regards,
Yan Vugenfirer.
>From 3fdafbdfad676ec8479dc073cff70bf356868bfe Mon Sep 17 00:00:00 2001
From: Yan Vugenfirer <yvugenfi@redhat.com>
Date: Tue, 8 Sep 2009 10:08:14 -0400
Subject: [PATCH] VirtIO: Fix QEMU crash during Windows PNP tests
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Add a new VIRTIO_BLK_F_WCACHE feature to virtio-blk to indicate that we have
a volatile write cache that needs controlled flushing. Implement a
VIRTIO_BLK_T_FLUSH operation to flush it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Add a enable_write_cache flag in the block driver state, and use it to
decide if we claim to have a volatile write cache that needs controlled
flushing from the guest. The flag is off if cache=writethrough is
defined because O_DSYNC guarantees that every write goes to stable
storage, and it is on for cache=none and cache=writeback.
Both scsi-disk and ide now use the new flage, changing from their
defaults of always off (ide) or always on (scsi-disk).
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
initialize vectors for all vqs to VIRTIO_NO_VECTOR rather than 0 which
is a valid vector. This fixes migration which happened before driver
was loaded.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reported-by: Amit Shah <amit.shah@redhat.com>
Tested-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
commit bf011293fa made virtio-blk-pci not
PCI-compliant, since it makes region 0 (which is an i/o region)
size > 256, and, since PCI 2.1, i/o regions are limited to 256 bytes size.
When the ATA serial number feature is off, which is the default,
make the device spec compliant again, by making region 0 smaller.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reported-by: Vadim Rozenfeld <vrozenfe@redhat.com>
Tested-by: Vadim Rozenfeld <vrozenfe@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
It is quite common for virtio-blk to submit more than one write request in a
row to the qemu block layer. Use bdrv_aio_multiwrite to allow block drivers to
optimize its handling of the requests.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Also split the isa bits into a separate source file, so we don't drag in
a dependency for isa-bus.o for machines which want ne2k_pci only.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Like isa_create_simple, but doesn't call qdev_init, so one can set
properties after creating and before initializing the device.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
isa-bus owns the isa irqs now, so it can hand them out directly.
There is no need for the separate isa_connect_irqs step, drop it.
Also hard-code isa interrupts which can't be configured anyway.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Lot of ISA devices work at fixed addresses, so having iobase
as bus property doesn't make much sense. Devices which can
have different iobases will get a device property.
Also simply hard-code stuff which can't be configured anyway.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
PCI device entries have to have a default version, not 2, because they are
used in the midle of other structures that can have _any_ version number.
We can't use proper versioning here until we have SubSections support.
Why we didn't noticed before? Because in a PC, the only device ported with
a version less that 2 is piix_pm, and for that one, default pci values are
right. If you use a virtio-console, you will see that its state it is not
loaded back.
Thanks to Amit Shah for reporting the problem and help debug the fix.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Doing this will make the vcpu ioctl be issued from the I/O thread, instead
of cpu thread. The correct behaviour is to call it from within the cpu thread,
as soon as we are ready to go.
Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori
malc
Michael S. Tsirkin
Stefan Weil
Mark McLoughlin
Juan Quintela
Blue Swirl
Juergen Lock
Aurelien Jarno
Gerd Hoffmann
Daniel Jacobowitz
Edgar E. Iglesias
Reimar Döffinger
Jan Kiszka
Markus Armbruster
Yan Vugenfirer
Christoph Hellwig
Kevin Wolf
Glauber Costa