Commit Graph

7589 Commits

Author SHA1 Message Date
Christoph Hellwig
94c6d6d815 fix raw_pread_aligned return value
raw_pread_aligned currently returns the raw return value from
lseek/read, which is always -1 in case of an error.  But the
callers higher up the stack expect it to return the negated
errno just like raw_pwrite_aligned.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-27 09:45:37 -05:00
Stefan Weil
afd3216027 VNC: Fix memory allocation (wrong structure size).
Pointer vs addresses a VncDisplay structure,
so it is sufficient to allocate sizeof(VncDisplay)
or sizeof(*vs) bytes instead of the much larger
sizeof(VncState).

Maybe the misleading name should be fixed, too:
the code contains many places where vs is used,
sometimes it is a VncState *, sometimes it is a
VncDisplay *. vd would be a better name.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-27 09:45:26 -05:00
Kevin Wolf
91a073a975 Drop bdrv_create2
This patch converts the remaining users of bdrv_create2 to bdrv_create and
removes the now unused function.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-27 09:45:23 -05:00
Kevin Wolf
a980c98cf1 qcow2: Update multiple refcounts at once
Don't write each single changed refcount block entry to the disk after it is
written, but update all entries of the block and write all of them at once.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-27 09:45:20 -05:00
Kevin Wolf
44ff42de1c qcow2: Refactor update_refcount
This is a preparation patch with no functional changes. It moves the allocation
of new refcounts block to a new function and makes update_cluster_refcount (for
one cluster) call update_refcount (for multiple clusters) instead the other way
round.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-27 09:45:15 -05:00
Kevin Wolf
ade406775d qcow/qcow2: Drop synchronous qcow_write()
There is only one (internal) user left and it can be switched to the normal
emulation provided in block.c

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-27 09:45:10 -05:00
Kevin Wolf
cab3c82537 e1000: Ignore reset command
When a reset is requested, the current e1000 emulation never clears the
reset bit which may cause a driver to hang. This patch masks the reset
bit out when setting the control registert, so the reset is immediately
completed.

Signed-off-by: Kevin Wolf <mail@kevin-wolf.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-27 09:45:06 -05:00
Kevin Wolf
8cf07dcbe7 Fix output of uninitialized strings
Commit ffad4116b9 removed the "scratch buffer"
from check_params, but didn't care for the error messages which actually
included this string to tell the user which option was wrong. Now this string
is uninitialized, so this patch removes it from the message.

This means that the user is only told the whole parameter string and has to
pick the wrong option by himself as the callers of check_params can't know this
value any more. An alternative approach would be to revert that commit and do
whatever is needed to fix the original problem without changing check_params.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-27 09:44:51 -05:00
Edgar E. Iglesias
7696d1ecd0 microblaze: Conditionalize FDT features.
If libfdt is not available, disable the fdt manipulation features.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-27 10:49:12 +02:00
Edgar E. Iglesias
48c50a6234 doc: Briefly mention CRIS and MicroBlaze.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-27 01:34:02 +02:00
Edgar E. Iglesias
d0f3654f83 microblaze: Make writes to MMU_ZPR flush the TLB.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-27 01:19:58 +02:00
Edgar E. Iglesias
6b2fce907d microblaze: Correct typo.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-27 01:10:26 +02:00
Edgar E. Iglesias
72b675caac microblaze: Hook into the build-system.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:11:04 +02:00
Edgar E. Iglesias
d74d6a99a0 microblaze: Add GDB stub support.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:11:04 +02:00
Edgar E. Iglesias
6a8b1ae202 microblaze: Add petalogix s3a1800dsp MMU linux ref-design.
This setup was designed by petalogix and is supported by upstream linux.
The design targets a xilinx spartan-3a-1800 dsp board with MMU.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:56 +02:00
Edgar E. Iglesias
b43848a100 xilinx: Add ethlite emulation.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:51 +02:00
Edgar E. Iglesias
ee118d95af xilinx: Add uartlite emulation.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:47 +02:00
Edgar E. Iglesias
388f60b1cf xilinx: Add OPB timer.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:43 +02:00
Edgar E. Iglesias
17628bc642 xilinx: Add interrupt controller.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:38 +02:00
Edgar E. Iglesias
1f07fd1f85 microblaze: Add CPU interrupt wrapper logic.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:38 +02:00
Edgar E. Iglesias
afeeceb0d7 microblaze: Add MMU emulation.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:34 +02:00
Edgar E. Iglesias
e90e390c2b microblaze: Add disassembler.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:28 +02:00
Edgar E. Iglesias
b779e29ed8 microblaze: linux-user support.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:28 +02:00
Edgar E. Iglesias
8dfbe4e839 microblaze: Add syscall, signal and termbits defs for linux-user.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:21 +02:00
Edgar E. Iglesias
4acb54baa6 microblaze: Add translation routines.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:11 +02:00
Paul Brook
370ab9863d Remove temporary config-host.h
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-26 15:07:56 +01:00
Paul Brook
067a3ddc88 Remove qdev irq sink handling
We have both IRQ sinks and GPIO inputs.  These are in principle exactly
the same thing, so remove the former.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-26 14:56:11 +01:00
Paul Brook
c2fb26379e Add dummy command to submakefiles
Add a dummy command to the all: rule in sub-makefiles.
This avoids "Nothing to be done for `all'." messages from make.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-25 18:56:13 +01:00
Paul Brook
3c80c6fefb Remove unused variable
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-24 21:24:33 +01:00
Stefan Weil
3cb5a22326 ETRAX: Removed unused struct entry and fixed Windows build.
"struct timeval last" caused a compilation error with mingw32
(missing header for struct timeval).

It is unused, so it was possible to remove it.

Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
2009-05-23 21:43:40 +02:00
Paul Brook
02e2da45c4 Add common BusState
Implement and use a common device bus state.  The main side-effect is
that creating a bus and attaching it to a parent device are no longer
separate operations.  For legacy code we allow a NULL parent, but that
should go away eventually.

Also tweak creation code to veriry theat a device in on the right bus.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-23 00:13:41 +01:00
Paul Brook
4856fcff8a Fix lance segfaults
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-22 17:44:32 +01:00
Paul Brook
523685522b Avoid errors when curl-config does not exist
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-22 17:22:38 +01:00
Anthony Liguori
00070396b0 bios: Use the correct mask to size the PCI option ROM BAR
Bit 0 is the enable bit, which we not only don't want to set, but
it will stick and make us think it's an I/O port resource.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:37 -05:00
Jan Kiszka
a23978077b x86: Add support for resume flag
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
2009-05-22 10:50:37 -05:00
Jan Kiszka
37cb6fc37b net: Fix dump time stamps
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
2009-05-22 10:50:36 -05:00
Alexander Graf
769ce76d0e Add HTTP protocol using curl v6
Currently Qemu can read from posix I/O and NBD. This patch adds a
third protocol to the game: HTTP.

In certain situations it can be useful to access HTTP data directly,
for example if you want to try out an http provided OS image, but
don't know if you want to download it yet.

Using this patch you can now try it on on the fly. Just use it like:

qemu -cdrom http://host/path/my.iso

Signed-off-by: Alexander Graf <agraf@suse.de>
2009-05-22 10:50:35 -05:00
Jason Wessel
d55ebf5539 USB serial device support
Add in a workaround to allow the usb serial devices to work with the
usb pass through mechanism.  The ioctl() to request an alternate
interface will always return < 0 for a usb-serial device based on the
kernel driver.  This means there is no alternate interface end point.

This was fully tested with a pl2303 usb serial device.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2009-05-22 10:50:35 -05:00
Jason Wessel
40ff16248e serial: fix lost character after sysrq
After creating an automated regression test to test the sysrq
responses while running a linux image in qemu, I found that the
simulated uart was eating the character right after the sysrq about
75% of the time.

The problem is that the qemu sets the LSR_DR (data ready) bit on a
serial break.  The automated tests can send a break and the sysrq
character quickly enough that the qemu serial fifo has a real
character available. When there is valid character in the fifo, it
gets consumed by the serial driver in the guest OS.

The real hardware also appears to set the LSR_DR but always appears to
have a null byte in this condition.  This patch changes the qemu
behavior to match the tested characteristics of a real 16550 chip.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2009-05-22 10:50:35 -05:00
Jason Wessel
7e57f0493a usb-serial: implement break event.
Implement the serial break via usb serial.

The second data byte in ftdi status packet contains the break status.
The values were already defined in usb-serial.c so it was a matter of
making use of the event_trigger to form a urb to send over to the host
controller with the serial break status set.

This was tested against a linux development image which enables sysrq
via a serial break on the ftdi usb console.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2009-05-22 10:50:34 -05:00
Jan Kiszka
0928a95ffe slirp: Reassign same address to same DHCP client
In case a client restarts a DHCP recovery without releasing its old
address, reassign the same address to prevent consuming free addresses
and moving away from the standard client address.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
2009-05-22 10:50:34 -05:00
Jan Kiszka
f8d926e9cd kvm: x86: Save/restore KVM-specific CPU states
Save and restore all so far neglected KVM-specific CPU states. Handling
the TSC stabilizes migration in KVM mode. The interrupt_bitmap and
mp_state are currently unused, but will become relevant for in-kernel
irqchip support. By including proper saving/restoring already, we avoid
having to increment CPU_SAVE_VERSION later on once again.

v2:
 - initialize mp_state runnable (for the boot CPU)

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:34 -05:00
Jan Kiszka
d33a1810d7 kvm: Rework VCPU reset
Use standard callback with highest order to synchronize VCPU on reset
after all device callbacks were execute. This allows to remove the
special kvm hook in qemu_system_reset.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:34 -05:00
Jan Kiszka
8217606e6e Introduce reset notifier order
Add the parameter 'order' to qemu_register_reset and sort callbacks on
registration. On system reset, callbacks with lower order will be
invoked before those with higher order. Update all existing users to the
standard order 0.

Note: At least for x86, the existing users seem to assume that handlers
are called in their registration order. Therefore, the patch preserves
this property. If someone feels bored, (s)he could try to identify this
dependency and express it properly on callback registration.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:34 -05:00
Jan Kiszka
93102fd601 kvm: Fix framebuffer dirty log sync
kvm_physical_sync_dirty_bitmap() takes the end address as second
argument, not the region size. Moverover, the kvm API should not be used
directly here, but cpu_physical_sync_dirty_bitmap().

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:33 -05:00
Jan Kiszka
b0a46a333a kvm: Add missing bits to support live migration
This patch adds the missing hooks to allow live migration in KVM mode.
It adds proper synchronization before/after saving/restoring the VCPU
states (note: PPC is untested), hooks into
cpu_physical_memory_set_dirty_tracking() to enable dirty memory logging
at KVM level, and synchronizes that drity log into QEMU's view before
running ram_live_save().

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:33 -05:00
Jan Kiszka
151f7749f2 kvm: Rework dirty bitmap synchronization
Extend kvm_physical_sync_dirty_bitmap() so that is can sync across
multiple slots. Useful for updating the whole dirty log during
migration. Moreover, properly pass down errors the whole call chain.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:33 -05:00
Jan Kiszka
62518b8b1d kvm: Fix dirty log temporary buffer size
The buffer passed to KVM_GET_DIRTY_LOG requires one bit per page. Fix
the size calculation in kvm_physical_sync_dirty_bitmap accordingly,
avoiding allocation of extremly oversized buffers.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:33 -05:00
Jan Kiszka
4495d6a745 kvm: Introduce kvm_set_migration_log
Introduce a global dirty logging flag that enforces logging for all
slots. This can be used by the live migration code to enable/disable
global logging withouth destroying the per-slot setting.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:33 -05:00
Jan Kiszka
e69917e29a kvm: Conditionally apply workaround for KVM slot handling bug
Only apply the workaround for broken slot joining in KVM when the
capability was not found that signals the corresponding fix existence.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:32 -05:00