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2011-01-29mc146818rtc: constantifyAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-29target-arm: Fix Neon VQ(R)DMULH.S16 instructionsJuha Riihimäki
Correct an error in the implementation of the 16 bit forms of VQ(R)DMULH, bringing them into line with the 32 bit implementation. Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-29virtio-blk: fix cross-endianness targetsAurelien Jarno
virtio-blk doesn't work on cross-endian configuration, as endianness is not handled correctly. This patch adds missing endianness conversions to make virtio-blk working. Tested on the following configurations: - i386 guest on x86_64 host - ppc guest on x86_64 host - i386 guest on mips host - ppc guest on mips host Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-29virtio-net: fix cross-endianness supportAurelien Jarno
virtio-net used to work on cross-endianness configurations, but doesn't anymore with recent guest kernels, as the new features don't handle endianness correctly. This patch fixes wrong conversion, and add missing ones to make virtio-net working. Tested on the following configurations: - i386 guest on x86_64 host - ppc guest on x86_64 host - i386 guest on mips host - ppc guest on mips host Cc: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-29escc: fix interrupt flagsAurelien Jarno
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>
2011-01-29pxa2xx_gpio: switch to using qdevDmitry Eremin-Solenikov
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>
2011-01-29spitz: make spitz-keyboard to use qdev infrastructureDmitry Eremin-Solenikov
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-01-29spitz: make sl-nand emulation use qdev infrastructureDmitry Eremin-Solenikov
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>
2011-01-29Use vmstate to save/load spitz-lcdtg and corgi-ssp stateDmitry Eremin-Solenikov
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-01-29SharpSL scoop device - convert to qdevDmitry Eremin-Solenikov
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>
2011-01-26target-arm: Fix loading of scalar value for Neon multiply-by-scalarPeter Maydell
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>
2011-01-26target-arm: Fix garbage collection of temporaries in Neon emulation.Christophe Lyon
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>
2011-01-26Support saturation with shift=0.Christophe Lyon
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>
2011-01-26target-sh4: update PTEH upon MMU exceptionAlexandre Courbot
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>
2011-01-26sh4: implement missing mmaped TLB read functionsAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-26sh4: implement missing mmaped TLB write functionsAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-26etrax: Dont decrease the granularity of timersEdgar E. Iglesias
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-25cris: Replace tcg branch sequence with setcondEdgar E. Iglesias
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-25pulseaudio: tweak configGerd Hoffmann
Zap unused divisor field. Raise the buffer size default. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2011-01-25pulseaudio: setup buffer attrsGerd Hoffmann
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>
2011-01-25pulseaudio: process 1/4 buffer max at onceGerd Hoffmann
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>
2011-01-25monitor: use after free in do_wav_capture()Isaku Yamahata
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>
2011-01-25mips_fulong: remove bogus HAS_AUDIOIsaku Yamahata
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>
2011-01-25audio: consolidate audio_init()Isaku Yamahata
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>
2011-01-25target-sh4: fix index of address read error exceptionAlexandre Courbot
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>
2011-01-25target-sh4: fix TLB invalidation codeAlexandre Courbot
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>
2011-01-24Merge remote branch 'kwolf/for-anthony' into stagingAnthony Liguori
2011-01-24SPARC: Add asr17 register supportFabien Chouteau
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>
2011-01-24SPARC: Emulation of Leon3Fabien Chouteau
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>
2011-01-24SPARC: Emulation of GRLIB APB UARTFabien Chouteau
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>
2011-01-24SPARC: Emulation of GRLIB IRQMPFabien Chouteau
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>
2011-01-24SPARC: Emulation of GRLIB GPTimerFabien Chouteau
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>
2011-01-24docs: Document scsi-disk and usb-storage removable parameterStefan Hajnoczi
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-01-24usb-msd: Propagate removable bit to SCSI deviceStefan Hajnoczi
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>
2011-01-24scsi: Allow scsi_bus_legacy_add_drive() to set removable bitStefan Hajnoczi
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>
2011-01-24scsi-disk: Allow overriding SCSI INQUIRY removable bitStefan Hajnoczi
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>
2011-01-24target-mips: fix save_cpu_state() callsAurelien Jarno
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>
2011-01-24block: Use backing format driver during image creationStefan Hajnoczi
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>
2011-01-24blockdev: Fix drive_del not to crash when drive is not in useMarkus Armbruster
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>
2011-01-24blockdev: Make drive_init() use error_report()Markus Armbruster
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>
2011-01-24blockdev: Fix error message for invalid -drive CHSMarkus Armbruster
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>
2011-01-24Fix block migration when the device size is not a multiple of 1 MBPierre Riteau
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>
2011-01-24qed: Refuse to create images on block devicesStefan Hajnoczi
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>
2011-01-24Documentation: Add qemu-img check/rebaseKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-01-24ide: Remove unneeded null pointer checkStefan Weil
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>
2011-01-24qcow2: Batch flushes for COWKevin Wolf
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>
2011-01-24qcow2: Use QcowCacheKevin Wolf
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>
2011-01-24qcow2: Add QcowCacheKevin Wolf
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>
2011-01-24ide: kill ide_dma_submit_checkChristoph Hellwig
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>
2011-01-24ide: also reset io_buffer_index for writesChristoph Hellwig
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>