sdk/emulator/qemu.git
13 years agoescc: fix interrupt flags
Aurelien Jarno [Thu, 27 Jan 2011 07:21:35 +0000 (08:21 +0100)]
escc: fix interrupt flags

Recent PowerPC kernel end up in kernel panic during boot in -nographic
mode. In this mode the second serial port is used as the udbg console,
and thus a few characters are sent on this port. This activates the
tx interrupt flag, and later choke the Linux kernel, as it was not
expecting such a flag to be set.

The problem here comes from the fact that contrary to most devices the
interrupt flags are only set if the interrupt is enabled. Quoting the
datasheet: "If the corresponding IE bit is not set, the IP for that
source of interrupt will never be set."

This patch fixes that by enabling the interrupt flag only when the
corresponding interrupt is enabled.

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agopxa2xx_gpio: switch to using qdev
Dmitry Eremin-Solenikov [Fri, 21 Jan 2011 16:57:50 +0000 (19:57 +0300)]
pxa2xx_gpio: switch to using qdev

As noted by Markus Armbruster pxa2xx_gpio vmstate version bumped
because of a change in the or .ilevel / .olevel arrays are saved,
for convenience.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
13 years agospitz: make spitz-keyboard to use qdev infrastructure
Dmitry Eremin-Solenikov [Fri, 21 Jan 2011 16:56:10 +0000 (19:56 +0300)]
spitz: make spitz-keyboard to use qdev infrastructure

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
13 years agospitz: make sl-nand emulation use qdev infrastructure
Dmitry Eremin-Solenikov [Fri, 21 Jan 2011 10:12:11 +0000 (13:12 +0300)]
spitz: make sl-nand emulation use qdev infrastructure

Switch sl-nand emulation to use qdev and vmstate. Also drop ecc_get/_put
functions as sl-nand was the only user of that code.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
13 years agoUse vmstate to save/load spitz-lcdtg and corgi-ssp state
Dmitry Eremin-Solenikov [Thu, 20 Jan 2011 15:52:28 +0000 (18:52 +0300)]
Use vmstate to save/load spitz-lcdtg and corgi-ssp state

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
13 years agoSharpSL scoop device - convert to qdev
Dmitry Eremin-Solenikov [Thu, 20 Jan 2011 15:52:27 +0000 (18:52 +0300)]
SharpSL scoop device - convert to qdev

Convert SharpSL scoop device to qdev, remove lots of supporting code, as
lot of init and gpio related things can now be done automagically.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
13 years agotarget-arm: Fix loading of scalar value for Neon multiply-by-scalar
Peter Maydell [Wed, 19 Jan 2011 19:29:53 +0000 (19:29 +0000)]
target-arm: Fix loading of scalar value for Neon multiply-by-scalar

Fix the register and part of register we get the scalar from in
the various "multiply vector by scalar" ops (VMUL by scalar
and friends).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agotarget-arm: Fix garbage collection of temporaries in Neon emulation.
Christophe Lyon [Wed, 19 Jan 2011 14:37:58 +0000 (15:37 +0100)]
target-arm: Fix garbage collection of temporaries in Neon emulation.

Fix garbage collection of temporaries in Neon emulation.

Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agoSupport saturation with shift=0.
Christophe Lyon [Wed, 19 Jan 2011 16:10:52 +0000 (17:10 +0100)]
Support saturation with shift=0.

This patch fixes corner-case saturations, when the target range is
zero. It merely removes the guard against (sh == 0), and makes:
__ssat(0x87654321, 1) return 0xffffffff and set the saturation flag
__usat(0x87654321, 0) return 0 and set the saturation flag

Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agotarget-sh4: update PTEH upon MMU exception
Alexandre Courbot [Wed, 26 Jan 2011 02:57:53 +0000 (11:57 +0900)]
target-sh4: update PTEH upon MMU exception

Update the PTEH register to contain the VPN at which an MMU
exception occured as specified by the SH4 reference.

Signed-off-by: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agosh4: implement missing mmaped TLB read functions
Aurelien Jarno [Wed, 26 Jan 2011 01:16:39 +0000 (02:16 +0100)]
sh4: implement missing mmaped TLB read functions

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agosh4: implement missing mmaped TLB write functions
Aurelien Jarno [Wed, 26 Jan 2011 01:07:50 +0000 (02:07 +0100)]
sh4: implement missing mmaped TLB write functions

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agoetrax: Dont decrease the granularity of timers
Edgar E. Iglesias [Wed, 26 Jan 2011 09:36:37 +0000 (10:36 +0100)]
etrax: Dont decrease the granularity of timers

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agocris: Replace tcg branch sequence with setcond
Edgar E. Iglesias [Tue, 25 Jan 2011 18:47:06 +0000 (19:47 +0100)]
cris: Replace tcg branch sequence with setcond

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agopulseaudio: tweak config
Gerd Hoffmann [Mon, 24 Jan 2011 21:07:46 +0000 (22:07 +0100)]
pulseaudio: tweak config

Zap unused divisor field.
Raise the buffer size default.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
13 years agopulseaudio: setup buffer attrs
Gerd Hoffmann [Mon, 24 Jan 2011 21:07:45 +0000 (22:07 +0100)]
pulseaudio: setup buffer attrs

Request reasonable buffer sizes from pulseaudio.  Without this
pa_simple_write() can block quite long and lead to dropouts,
especially with guests which use small audio ring buffers.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
13 years agopulseaudio: process 1/4 buffer max at once
Gerd Hoffmann [Mon, 24 Jan 2011 21:07:44 +0000 (22:07 +0100)]
pulseaudio: process 1/4 buffer max at once

Limit the size of data pieces processed by the pulseaudio worker
threads.  Never ever process more than 1/4 of the buffer at once.

Background: The buffer area currently processed by the pulseaudio thread
is blocked, i.e. the main thread (or iothread) can't fill in more data
there.  The buffer processing time is roughly real-time due to the
pa_simple_write() call blocking when the output queue to the pulse
server is full.  Thus processing big chunks at once means blocking
a large part of the buffer for a long time.  This brings high latency
and can lead to dropouts.

When processing the buffer in smaller chunks the rpos handling becomes a
problem though.  The thread reads hw->rpos without knowing whenever
qpa_run_out has already seen the last (small) chunk processed and
updated rpos accordingly.  There is no point in reading hw->rpos though,
pa->rpos can be used instead.  We just need to take care to initialize
pa->rpos before kicking the thread.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
13 years agomonitor: use after free in do_wav_capture()
Isaku Yamahata [Fri, 21 Jan 2011 10:53:55 +0000 (19:53 +0900)]
monitor: use after free in do_wav_capture()

use after free in do_wav_capture() on the error path.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agomips_fulong: remove bogus HAS_AUDIO
Isaku Yamahata [Fri, 21 Jan 2011 10:53:51 +0000 (19:53 +0900)]
mips_fulong: remove bogus HAS_AUDIO

remove bogus HAS_AUDIO according to 738012bec4c67e697e766edadab3f522c552a04d.

Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Huacai Chen <zltjiangshi@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agoaudio: consolidate audio_init()
Isaku Yamahata [Fri, 21 Jan 2011 10:53:45 +0000 (19:53 +0900)]
audio: consolidate audio_init()

consolidate audio_init() and remove references to shoundhw.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agotarget-sh4: fix index of address read error exception
Alexandre Courbot [Tue, 25 Jan 2011 05:00:14 +0000 (14:00 +0900)]
target-sh4: fix index of address read error exception

Exception index of address read error should be 0x0e0.

Signed-off-by: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agotarget-sh4: fix TLB invalidation code
Alexandre Courbot [Tue, 25 Jan 2011 06:32:01 +0000 (15:32 +0900)]
target-sh4: fix TLB invalidation code

In cpu_sh4_invalidate_tlb, the UTLB was invalidated twice and the
ITLB left unchaged, probably because of some unfortunate copy/paste.

Signed-off-by: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agoMerge remote branch 'kwolf/for-anthony' into staging
Anthony Liguori [Mon, 24 Jan 2011 21:16:56 +0000 (15:16 -0600)]
Merge remote branch 'kwolf/for-anthony' into staging

13 years agoSPARC: Add asr17 register support
Fabien Chouteau [Mon, 24 Jan 2011 11:56:56 +0000 (12:56 +0100)]
SPARC: Add asr17 register support

This register is activated by CPU_FEATURE_ASR17 in the feature field.

Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC: Emulation of Leon3
Fabien Chouteau [Mon, 24 Jan 2011 11:56:55 +0000 (12:56 +0100)]
SPARC: Emulation of Leon3

Leon3 is an open-source VHDL System-On-Chip, well known in space industry (more
information on http://www.gaisler.com).

Leon3 is made of multiple components available in the GrLib VHDL library.
Three devices are implemented: uart, timers and IRQ manager.
You can find code for these peripherals in the grlib_* files.

Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC: Emulation of GRLIB APB UART
Fabien Chouteau [Mon, 24 Jan 2011 11:56:54 +0000 (12:56 +0100)]
SPARC: Emulation of GRLIB APB UART

This device exposes one parameter:
 - chardev (ptr) : Pointer to a qemu character device

Emulation of GrLib devices is base on the GRLIB IP Core User's Manual:
http://www.gaisler.com/products/grlib/grip.pdf

Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC: Emulation of GRLIB IRQMP
Fabien Chouteau [Mon, 24 Jan 2011 11:56:53 +0000 (12:56 +0100)]
SPARC: Emulation of GRLIB IRQMP

This device exposes two parameters:
 - set_pil_in        (ptr) : A function to set the pil_in of the SPARC CPU
 - set_pil_in_opaque (ptr) : Opaque argument of the set_pil_in function

Emulation of GrLib devices is base on the GRLIB IP Core User's Manual:
http://www.gaisler.com/products/grlib/grip.pdf

Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC: Emulation of GRLIB GPTimer
Fabien Chouteau [Mon, 24 Jan 2011 11:56:52 +0000 (12:56 +0100)]
SPARC: Emulation of GRLIB GPTimer

This device exposes three parameters:
 - frequency (uint32) : The system frequency
 - irq-line  (uint32) : IRQ line number for the first timer
                        (others use irq-line + 1, irq-line + 2...)
 - nr-timers (uint32) : Number of timers

Emulation of GrLib devices is base on the GRLIB IP Core User's Manual:
http://www.gaisler.com/products/grlib/grip.pdf

Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agodocs: Document scsi-disk and usb-storage removable parameter
Stefan Hajnoczi [Mon, 24 Jan 2011 15:35:01 +0000 (15:35 +0000)]
docs: Document scsi-disk and usb-storage removable parameter

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agousb-msd: Propagate removable bit to SCSI device
Stefan Hajnoczi [Mon, 24 Jan 2011 15:35:00 +0000 (15:35 +0000)]
usb-msd: Propagate removable bit to SCSI device

USB Mass Storage Devices sometimes have the RMB (removable) bit set in
the SCSI INQUIRY response.  Thumbdrives tend to have the bit set whereas
hard disks do not.

Operating systems differentiate between removable devices and fixed
devices.  Under Linux, the anaconda installer looks for removable
devices.  Under Windows, only fixed devices may have more than one
partition and AutoRun is also affected by the removable bit.

For these reasons, allow USB Mass Storage Devices to override the
removable bit:

qemu -usb
     -drive if=none,file=test.img,cache=none,id=disk0
     -device usb-storage,drive=disk0,removable=on

The default is off.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoscsi: Allow scsi_bus_legacy_add_drive() to set removable bit
Stefan Hajnoczi [Mon, 24 Jan 2011 15:34:59 +0000 (15:34 +0000)]
scsi: Allow scsi_bus_legacy_add_drive() to set removable bit

scsi-disk devices may wish to override the removable bit.  Add support
for a qdev property on SCSI devices.  This is will be used by usb-msd.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoscsi-disk: Allow overriding SCSI INQUIRY removable bit
Stefan Hajnoczi [Mon, 24 Jan 2011 15:34:58 +0000 (15:34 +0000)]
scsi-disk: Allow overriding SCSI INQUIRY removable bit

Provide the "removable" qdev property bit to override the SCSI INQUIRY
removable (RMB) bit for non-CDROM devices.  This will be used by USB
Mass Storage Devices, which sometimes have this guest-visible bit set
and sometimes do not.  They therefore requires a means for user
configuration.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agotarget-mips: fix save_cpu_state() calls
Aurelien Jarno [Mon, 17 Jan 2011 18:29:34 +0000 (19:29 +0100)]
target-mips: fix save_cpu_state() calls

The rule is:
- don't save PC if the exception is only triggered by softmmu.
- save PC if the exception can be triggered by an helper.

Fix a 64-bit kernel crash when loading modules.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agoblock: Use backing format driver during image creation
Stefan Hajnoczi [Mon, 24 Jan 2011 09:32:20 +0000 (09:32 +0000)]
block: Use backing format driver during image creation

The backing format should be honored during image creation.  For some
reason we currently use the image format to open the backing file.  This
fails when the backing file has a different format than the image being
created.  Keep the image and backing format drivers completely separate.

Also print the backing filename if there is an error opening the backing
file instead of the image filename.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoblockdev: Fix drive_del not to crash when drive is not in use
Markus Armbruster [Mon, 17 Jan 2011 18:31:29 +0000 (19:31 +0100)]
blockdev: Fix drive_del not to crash when drive is not in use

Watch this:

    (qemu) drive_add 0 if=none,file=tmp.img
    OK
    (qemu) info block
    none0: type=hd removable=0 file=tmp.img ro=0 drv=raw encrypted=0
    (qemu) drive_del none0
    Segmentation fault (core dumped)

do_drive_del()'s code to clean up the pointer from a qdev using the
drive back to the drive needs to check whether such a device exists.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoblockdev: Make drive_init() use error_report()
Markus Armbruster [Mon, 17 Jan 2011 18:31:27 +0000 (19:31 +0100)]
blockdev: Make drive_init() use error_report()

This makes the errors point to the error location, and fixes drive_add
to report errors in the monitor instead of stderr.

While there, tweak a few error messages for consistency.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoblockdev: Fix error message for invalid -drive CHS
Markus Armbruster [Mon, 17 Jan 2011 18:31:26 +0000 (19:31 +0100)]
blockdev: Fix error message for invalid -drive CHS

When cyls, heads or secs are out of range, the error message prints
buf, which points to the value of option "if".  Bogus, may even be
null.  Drop that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoFix block migration when the device size is not a multiple of 1 MB
Pierre Riteau [Fri, 21 Jan 2011 11:42:30 +0000 (12:42 +0100)]
Fix block migration when the device size is not a multiple of 1 MB

b02bea3a85cc939f09aa674a3f1e4f36d418c007 added a check on the return
value of bdrv_write and aborts migration when it fails. However, if the
size of the block device to migrate is not a multiple of BLOCK_SIZE
(currently 1 MB), the last bdrv_write will fail with -EIO.

Fixed by calling bdrv_write with the correct size of the last block.

Signed-off-by: Pierre Riteau <Pierre.Riteau@irisa.fr>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoqed: Refuse to create images on block devices
Stefan Hajnoczi [Fri, 14 Jan 2011 22:44:33 +0000 (22:44 +0000)]
qed: Refuse to create images on block devices

QED relies on the underlying filesystem to extend the file and maintain
its size.  Check that images are not created on a block device.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoDocumentation: Add qemu-img check/rebase
Kevin Wolf [Mon, 17 Jan 2011 14:35:28 +0000 (15:35 +0100)]
Documentation: Add qemu-img check/rebase

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoide: Remove unneeded null pointer check
Stefan Weil [Sat, 15 Jan 2011 18:01:03 +0000 (19:01 +0100)]
ide: Remove unneeded null pointer check

With bm == NULL, other code in the same function would crash.

This bug was reported by cppcheck:
hw/ide/pci.c:280: error: Possible null pointer dereference: bm

Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoqcow2: Batch flushes for COW
Kevin Wolf [Fri, 14 Jan 2011 14:55:38 +0000 (15:55 +0100)]
qcow2: Batch flushes for COW

qcow2 calls bdrv_flush() after performing COW in order to ensure that the
L2 table change is never written before the copy is safe on disk. Now that the
L2 table is cached, we can wait with flushing until we write out the next L2
table.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoqcow2: Use QcowCache
Kevin Wolf [Mon, 10 Jan 2011 16:17:28 +0000 (17:17 +0100)]
qcow2: Use QcowCache

Use the new functions of qcow2-cache.c for everything that works on refcount
block and L2 tables.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoqcow2: Add QcowCache
Kevin Wolf [Mon, 10 Jan 2011 16:15:10 +0000 (17:15 +0100)]
qcow2: Add QcowCache

This adds some new cache functions to qcow2 which can be used for caching
refcount blocks and L2 tables. When used with cache=writethrough they work
like the old caching code which is spread all over qcow2, so for this case we
have merely a cleanup.

The interesting case is with writeback caching (this includes cache=none) where
data isn't written to disk immediately but only kept in cache initially. This
leads to some form of metadata write batching which avoids the current "write
to refcount block, flush, write to L2 table" pattern for each single request
when a lot of cluster allocations happen. Instead, cache entries are only
written out if its required to maintain the right order. In the pure cluster
allocation case this means that all metadata updates for requests are done in
memory initially and on sync, first the refcount blocks are written to disk,
then fsync, then L2 tables.

This improves performance of scenarios with lots of cluster allocations
noticably (e.g. installation or after taking a snapshot).

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoide: kill ide_dma_submit_check
Christoph Hellwig [Mon, 20 Dec 2010 12:46:09 +0000 (13:46 +0100)]
ide: kill ide_dma_submit_check

Merge ide_dma_submit_check into it's only caller.  Also use tail recursion
using a goto instead of a real recursion - this avoid overflowing the
stack in the pathological situation of an recurring error that is ignored.
We'll still be busy looping in ide_dma_cb, but at least won't eat up
all stack space after this.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoide: also reset io_buffer_index for writes
Christoph Hellwig [Mon, 20 Dec 2010 12:45:58 +0000 (13:45 +0100)]
ide: also reset io_buffer_index for writes

Currenly the code only resets the io_buffer_index field for reads,
but the code seems to expect this for all types of I/O.  I guess
we simply don't hit large enough transfers that would require this
often enough.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoide: factor dma handling helpers
Christoph Hellwig [Mon, 20 Dec 2010 12:45:48 +0000 (13:45 +0100)]
ide: factor dma handling helpers

Factor the DMA I/O path that is duplicated between read and write
commands, into common helpers using the s->is_read flag added for
the macio ATA controller.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoAvoid divide by zero when there is no block device to migrate
Pierre Riteau [Wed, 12 Jan 2011 13:41:00 +0000 (14:41 +0100)]
Avoid divide by zero when there is no block device to migrate

When block migration is requested and no read-write block device is
present, a divide by zero exception is triggered because
total_sector_sum equals zero.

Signed-off-by: Pierre Riteau <Pierre.Riteau@irisa.fr>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoMake strtosz() return int64_t instead of ssize_t
Jes Sorensen [Wed, 5 Jan 2011 10:41:02 +0000 (11:41 +0100)]
Make strtosz() return int64_t instead of ssize_t

strtosz() needs to return a 64 bit type even on 32 bit
architectures. Otherwise qemu-img will fail to create disk
images >= 2GB

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agodo_snapshot_blkdev() error on missing snapshot_file argument
Jes Sorensen [Thu, 6 Jan 2011 16:02:23 +0000 (17:02 +0100)]
do_snapshot_blkdev() error on missing snapshot_file argument

Current code does not support snapshot internally to the running
image. Error in case no snapshot_file is specified.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoqemu-img snapshot: Use writeback caching
Kevin Wolf [Mon, 10 Jan 2011 11:33:02 +0000 (12:33 +0100)]
qemu-img snapshot: Use writeback caching

None of the other qemu-img subcommands uses writethrough, and there's no reason
why snapshot should be special.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agoqcow2: fix unaligned access
Aurelien Jarno [Sat, 1 Jan 2011 20:50:34 +0000 (21:50 +0100)]
qcow2: fix unaligned access

cpu_to_be64w() is called with an obviously non-aligned pointer. Use
cpu_to_be64wu() instead. It fixes unaligned accesses errors on IA64
hosts.

Cc: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agomultiboot: Fix upper memory size in multiboot info
Kevin Wolf [Tue, 4 Jan 2011 13:03:30 +0000 (14:03 +0100)]
multiboot: Fix upper memory size in multiboot info

The upper memory size field should exclude the first MB of RAM.

Signed-off-by: Kevin Wolf <mail@kevin-wolf.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agoDelete useless 'extern' qualifiers for functions
Blue Swirl [Sun, 23 Jan 2011 16:21:20 +0000 (16:21 +0000)]
Delete useless 'extern' qualifiers for functions

'extern' qualifier is useless for function declarations. Delete
them.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agogdbstub-xml: avoid a warning from sparse
Blue Swirl [Sun, 23 Jan 2011 11:43:25 +0000 (11:43 +0000)]
gdbstub-xml: avoid a warning from sparse

Include a header to get the declaration for xml_builtin. This
avoids a warning from sparse:
  CC    m68k-softmmu/gdbstub-xml.o
gdbstub-xml.c:244:12: warning: symbol 'xml_builtin' was not declared. Should it be static?

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoAvoid deadlock whith iothread and icount
Edgar E. Iglesias [Sun, 23 Jan 2011 03:44:51 +0000 (04:44 +0100)]
Avoid deadlock whith iothread and icount

When using the iothread together with icount, make sure the
qemu_icount counter makes forward progress when the vcpu is
idle to avoid deadlocks.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agomicroblaze: cleanup helper_addkc
Edgar E. Iglesias [Sun, 23 Jan 2011 02:52:20 +0000 (03:52 +0100)]
microblaze: cleanup helper_addkc

Remove unused addition and rename to helper_carry.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agomicroblaze: Improve subkc
Edgar E. Iglesias [Sat, 22 Jan 2011 11:39:16 +0000 (12:39 +0100)]
microblaze: Improve subkc

Move code from the helper into the translator. The remaining
helper parts can reuse helper_addkc, making it possible to
remove helper_subkc entirely.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agomicroblaze: Fix 3rd addkc arg when rd is r0
Edgar E. Iglesias [Sat, 22 Jan 2011 11:35:48 +0000 (12:35 +0100)]
microblaze: Fix 3rd addkc arg when rd is r0

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agomicroblaze: Improve addkc
Edgar E. Iglesias [Sat, 22 Jan 2011 11:02:53 +0000 (12:02 +0100)]
microblaze: Improve addkc

* Optimize handling when carry is not updated.
* Optimize handling for adds with nop semantics.
* Move code from helper_addkc to the translator making
  helper_addkc PURE and CONST.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agomicroblaze: Remove debug leftovers.
Edgar E. Iglesias [Sat, 22 Jan 2011 11:00:12 +0000 (12:00 +0100)]
microblaze: Remove debug leftovers.

No functional changes.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agomicroblaze: Reorganize for future patches
Edgar E. Iglesias [Sat, 22 Jan 2011 10:57:19 +0000 (11:57 +0100)]
microblaze: Reorganize for future patches

No functional changes.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agoppc: Correct BookE tlb reads
Edgar E. Iglesias [Fri, 21 Jan 2011 22:12:42 +0000 (23:12 +0100)]
ppc: Correct BookE tlb reads

Call the tlb read helper (and not the write helper) for tlb
reads.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agocheckpatch: Fix bracing false positives on #else
Jan Kiszka [Fri, 21 Jan 2011 17:19:40 +0000 (18:19 +0100)]
checkpatch: Fix bracing false positives on #else

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoMerge branch 'usb.4' of git://anongit.freedesktop.org/spice/qemu
Aurelien Jarno [Fri, 21 Jan 2011 16:56:50 +0000 (17:56 +0100)]
Merge branch 'usb.4' of git://anongit.freedesktop.org/spice/qemu

* 'usb.4' of git://anongit.freedesktop.org/spice/qemu: (32 commits)
  usb: zap pdev from usbport
  usb: rewrite fw path, fix numbering
  usb: add port property.
  usb: keep track of physical port address.
  usb storage: handle long responses
  usb storage: fix status reporting
  usb storage: high speed support
  usb: add device qualifier support
  usb: add usb_desc_attach
  usb: add attach callback
  usb: add speed mask to ports
  usb: hid: change serial number to "42".
  usb: hid: remote wakeup support.
  usb: hub: remote wakeup support.
  usb: uhci: remote wakeup support.
  usb: add usb_wakeup() + wakeup callback to port ops
  usb: rework attach/detach workflow
  usb: create USBPortOps, move attach there.
  usb: move remote wakeup handling to common code
  usb: move USB_REQ_{GET,SET}_CONFIGURATION handling to common code
  ...

13 years agosm501: fix screen redraw
Aurelien Jarno [Fri, 21 Jan 2011 16:56:32 +0000 (17:56 +0100)]
sm501: fix screen redraw

Due to signed/unsigned comparison, the dirty bits are never reset, and
the screen redrawn each time. Fix that by only using ram_addr_t types,
and looking for page_min != addr_max instead.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agocheckpatch: adjust to QEMUisms
Blue Swirl [Thu, 20 Jan 2011 20:58:56 +0000 (20:58 +0000)]
checkpatch: adjust to QEMUisms

Change checkpatch.pl for QEMU use:
 - Root directory detection
 - Forbid tabs
 - Indent at 4 spaces
 - Allow typedefs
 - Enforce brace use even for single statement blocks
 - Don't suggest nonexistent cleanup tools

Mention the script in CODING_STYLE.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoAdd checkpatch.pl from Linux kernel
Blue Swirl [Thu, 20 Jan 2011 20:54:26 +0000 (20:54 +0000)]
Add checkpatch.pl from Linux kernel

Unchanged import from
http://www.kernel.org/pub/linux/kernel/people/apw/checkpatch/checkpatch.pl-0.31

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoAdd scripts directory
Blue Swirl [Thu, 20 Jan 2011 20:54:21 +0000 (20:54 +0000)]
Add scripts directory

Move build and user scripts into scripts directory.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agogt64xxx: set isa_mem_base during registration
Aurelien Jarno [Thu, 20 Jan 2011 20:40:53 +0000 (21:40 +0100)]
gt64xxx: set isa_mem_base during registration

isa_mem_base is computed from registers during reset, but due to QEMU
limitations some devices (e.g. VGA card) need to know it earlier when
they are registered.

Workaround this by setting the value during registration instead of
reset.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agohw/pl190.c: Fix writing of default vector address
Peter Maydell [Thu, 20 Jan 2011 16:04:52 +0000 (16:04 +0000)]
hw/pl190.c: Fix writing of default vector address

The PL190 implementation keeps the default vector address
in vect_addr[16], but we weren't using this for writes to
the DEFVECTADDR register. As a result of this fix the
default_addr structure member is unused and we can delete it.

Reported-by: Himanshu Chauhan <hschauhan@nulltrace.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agoMerge remote branch 'mst/for_anthony' into staging
Anthony Liguori [Thu, 20 Jan 2011 15:05:37 +0000 (09:05 -0600)]
Merge remote branch 'mst/for_anthony' into staging

13 years agotarget-ppc: fix wrong NaN tests
Aurelien Jarno [Mon, 17 Jan 2011 18:29:33 +0000 (19:29 +0100)]
target-ppc: fix wrong NaN tests

Some tests in FPU emulation code were wrongly using float64_is_nan()
before commit 185698715dfb18c82ad2a5dbc169908602d43e81, and wrongly
using float64_is_quiet_nan() after. Fix them by using float64_is_any_nan()
instead.

Reviewed-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agotarget-ppc: fix sNaN propagation
Aurelien Jarno [Mon, 17 Jan 2011 18:29:33 +0000 (19:29 +0100)]
target-ppc: fix sNaN propagation

The current FPU code returns 0.0 if one of the operand is a
signaling NaN and the VXSNAN exception is disabled.

fload_invalid_op_excp() doesn't return a qNaN in case of a VXSNAN
exception as the operand should be propagated instead of a new
qNaN to be generated. Fix that by calling fload_invalid_op_excp()
only for the exception generation (if enabled), and use the softfloat
code to correctly compute the result.

Reviewed-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agopci: use qemu_malloc() in pcibus_get_dev_path()
Isaku Yamahata [Thu, 20 Jan 2011 06:57:49 +0000 (15:57 +0900)]
pci: use qemu_malloc() in pcibus_get_dev_path()

use qemu_malloc() instead of direct use of malloc().

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
13 years agomsix: simplify write config
Isaku Yamahata [Thu, 20 Jan 2011 07:21:40 +0000 (16:21 +0900)]
msix: simplify write config

use pci_device_deassert_intx().

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
13 years agomsi: simplify write config a bit.
Isaku Yamahata [Thu, 20 Jan 2011 07:21:39 +0000 (16:21 +0900)]
msi: simplify write config a bit.

use pci_device_deassert_intx().

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
13 years agopci: deassert intx on reset.
Isaku Yamahata [Thu, 20 Jan 2011 07:21:38 +0000 (16:21 +0900)]
pci: deassert intx on reset.

deassert intx on device reset.
So far pci_device_reset() is used for system reset.
In that case, interrupt controller is reset at the same time so that
all irq is are deasserted.
But now pci bus reset/flr is supported, and in that case irq needs to be
disabled explicitly.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
13 years agopxa2xx_lcd: restore updating of display
Dmitry Eremin-Solenikov [Tue, 18 Jan 2011 16:11:33 +0000 (19:11 +0300)]
pxa2xx_lcd: restore updating of display

Recently PXA2xx lcd have stopped to be updated incrementally (picture
frozen). This patch fixes that by passing non min/max x/y, but rather
(correctly) x/y and w/h.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agopxa2xx: fix vmstate_pxa2xx_i2c
Dmitry Eremin-Solenikov [Thu, 13 Jan 2011 15:37:12 +0000 (18:37 +0300)]
pxa2xx: fix vmstate_pxa2xx_i2c

vmstate_pxa2xx_i2c incorrectly recursed to itself instead of going
to store slave device. Fix that stop stop qemu from segfaulting
during savevm for pxa2xx-based devices.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agoscoop: fix access to registers from second instance
Dmitry Eremin-Solenikov [Thu, 13 Jan 2011 15:37:11 +0000 (18:37 +0300)]
scoop: fix access to registers from second instance

Second instance of scoop contains registers shifted to 0x40 from the start
of the page. Instead of messing with register mapping, just limit register
address to 0x00..0x3f.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agomainstone: fix name of the allocated memory for roms
Dmitry Eremin-Solenikov [Thu, 13 Jan 2011 15:37:10 +0000 (18:37 +0300)]
mainstone: fix name of the allocated memory for roms

Mainstone board has two flash chips (emulated by two ram regions), however
currently code tries to allocate them with the same name, which fails.
Fix that to make mainstone emulation work again.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agoadd bepo (french dvorak) keyboard layout
Fred Boiteux [Sun, 9 Jan 2011 13:24:59 +0000 (14:24 +0100)]
add bepo (french dvorak) keyboard layout

I'm using the Qemu program with VNC I/O, and I had some problems with
my keyboard layout, so I've prepared a definition to be included in
Qemu, built from Xorg description.

Signed-off-by: Frédéric Boiteux <fboiteux@free.fr>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agostc91c111: Implement save/restore
Peter Maydell [Thu, 23 Dec 2010 17:19:58 +0000 (17:19 +0000)]
stc91c111: Implement save/restore

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agopl080: Implement save/restore
Peter Maydell [Thu, 23 Dec 2010 17:19:57 +0000 (17:19 +0000)]
pl080: Implement save/restore

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agopl110: Implement save/restore
Peter Maydell [Thu, 23 Dec 2010 17:19:56 +0000 (17:19 +0000)]
pl110: Implement save/restore

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agopl031: Implement save/restore
Peter Maydell [Thu, 23 Dec 2010 17:19:55 +0000 (17:19 +0000)]
pl031: Implement save/restore

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agopl050: Implement save/restore
Peter Maydell [Thu, 23 Dec 2010 17:19:54 +0000 (17:19 +0000)]
pl050: Implement save/restore

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agoarm_sysctl: Implement save/restore
Peter Maydell [Thu, 23 Dec 2010 17:19:53 +0000 (17:19 +0000)]
arm_sysctl: Implement save/restore

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agovpb_sic: Implement save/restore
Peter Maydell [Thu, 23 Dec 2010 17:19:52 +0000 (17:19 +0000)]
vpb_sic: Implement save/restore

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agopl190: Implement save/restore
Peter Maydell [Thu, 23 Dec 2010 17:19:51 +0000 (17:19 +0000)]
pl190: Implement save/restore

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agogt64xxx: qdev conversion
Aurelien Jarno [Wed, 19 Jan 2011 22:10:40 +0000 (23:10 +0100)]
gt64xxx: qdev conversion

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agosh_pci: qdev conversion
Aurelien Jarno [Wed, 19 Jan 2011 17:23:59 +0000 (18:23 +0100)]
sh_pci: qdev conversion

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agosh_serial: process all received characters
Aurelien Jarno [Wed, 19 Jan 2011 10:38:36 +0000 (11:38 +0100)]
sh_serial: process all received characters

When operating on the SCIF, process all the received characters, as long
as the FIFO can handle them.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agosh_serial: remove one level of indirection
Aurelien Jarno [Wed, 19 Jan 2011 10:35:02 +0000 (11:35 +0100)]
sh_serial: remove one level of indirection

The indirection functions are empty since commit
8da3ff180974732fc4272cb4433fef85c1822961.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agousb-hid: modifiers should generate an event
Aurelien Jarno [Mon, 17 Jan 2011 18:29:34 +0000 (19:29 +0100)]
usb-hid: modifiers should generate an event

When a modifier key is pressed or released, the USB HID keyboard still
answers NAK, unless another key is also pressed or released.

The patch fixes that by calling usb_hid_changed() when a modifier key
is pressed or released.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agosoftfloat: fix floatx80_is_{quiet,signaling}_nan()
Aurelien Jarno [Mon, 17 Jan 2011 18:29:33 +0000 (19:29 +0100)]
softfloat: fix floatx80_is_{quiet,signaling}_nan()

floatx80_is_{quiet,signaling}_nan() functions are incorrectly detecting
the type of NaN, depending on SNAN_BIT_IS_ONE, one of the two is
returning the correct value, and the other true for any kind of NaN.

This patch fixes that by applying the same kind of comparison as for
other float formats, but taking into account the explicit bit.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
13 years agotcg: README, name deposit second argument len/LEN
Edgar E. Iglesias [Thu, 20 Jan 2011 11:16:57 +0000 (12:16 +0100)]
tcg: README, name deposit second argument len/LEN

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agotarget-i386: Use deposit operation.
Richard Henderson [Tue, 11 Jan 2011 03:23:47 +0000 (19:23 -0800)]
target-i386: Use deposit operation.

Use this for assignment to the low byte or low word of a register.

Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agotcg: Define "deposit" as an optional operation.
Richard Henderson [Tue, 11 Jan 2011 03:23:42 +0000 (19:23 -0800)]
tcg: Define "deposit" as an optional operation.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>