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2011-02-23vnc: tight: use the update frequency to choose between lossy and losslessCorentin Chary
Use the new update frequency infrastructure to use jpeg for regions with high update frequency. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-23vnc: refresh lossy rect after a given timeoutCorentin Chary
If an adaptive encoding has choosen to send a lossy update based on the result of vnc_update_freq(), then it should advertise it with vnc_sent_lossy_rect(). This will allow to automatically refresh this rect once it's static again. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-23vnc: add a way to get the update frequency for a given regionCorentin Chary
This patch compute the update frequency (in Hz) for each 64x64 rects. Any adaptive encoding can get this value using vnc_update_freq(), and switch to a lossy encoding if the value is too high. The frequency is pre-calculated every 500ms, based on the last 10 updates per 64x64 rect. If a 64x64 rect was not updated in the last 2 second, then the frequency became 0, and all the stored timestamp are reseted. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-23vnc: don't set the quality if lossy encoding are disabledCorentin Chary
This should not change the current behavior, but if any new encoding try to use the tight quality, it will always be set to -1 when lossy encodings are disabled. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-23microblaze: Allow targeting little-endian mbEdgar E. Iglesias
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2011-02-23pls3adsp1800: Base load_elf endianness on target endiannessEdgar E. Iglesias
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2011-02-23do not use qemu_icount_delta in the !use_icount casePaolo Bonzini
The !use_icount code is the same for iothread and non-iothread, except that the timeout is different. Since the timeout might as well be infinite and is only masking bugs, use the higher value. With this change the !use_icount code is handled equivalently in qemu_icount_delta and qemu_calculate_timeout, and we rip it out of the former. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2011-02-21hw/irq.h: Remove unused SetIRQFunc typedefPeter Maydell
Remove the typedef SetIRQFunc, as it is not used by anything. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-21Revert "prep: Disable second IDE channel, as long as ISA IDE emulation ↵Aurelien Jarno
doesn't support same irq for both channels" This reverts commit 491e2a338fdf8310c84f6ebaed1683a871a0700e.
2011-02-21isa-bus: Remove bogus IRQ sharing checkJan Kiszka
Nothing prevented IRQ sharing on the ISA bus in principle. Not all boards supported this, neither each and every card nor driver and OS. Still, there existed valid IRQ sharing scenarios, (at least) two of them can also be found in QEMU: >2 PC UARTs and the PREP IDE buses. So remove this artificial restriction from our ISA model. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-21PS/2 keyboard Scancode Set 3 supportRoy Tam
The following patch adds PS/2 keyboard Scancode Set 3 support. Signed-off-by: Roy Tam <roytam@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-21target-arm: Fix shift by immediate and narrow where src, dest overlapPeter Maydell
For Neon shifts by immediate and narrow, correctly handle the case where the source registers and the destination registers overlap (the second pass should use the original register contents, not the results of the first pass). This includes a refactoring to pull the size check outside the loop rather than inside, since there is now very little common code between the size == 3 and size != 3 case. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-21target-arm: Refactor to pull narrowing decode into separate functionPeter Maydell
Pull the code which decodes narrowing operations as being either signed/unsigned saturate or plain out into its own function. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20w32: Remove implementation of function ffsStefan Weil
This implementation is no longer needed. ffs is either a built-in function (for compilations with optimisation) or taken from libiberty.a (which was added by the previous patch). Cc: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20w32: Use additional library libiberty.aStefan Weil
libiberty.a is part of MinGW and provides useful functions like ffs (MinGW) and getopt (MinGW-w64). It is needed for w64 compilations and allows simpler code for w32. Cc: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20Fix obvious mistake in pxa2xx i2s driverVasily Khoruzhick
RST bit is (1 << 4) bit, not (1 << 3), fix condition that enables i2s if ENB is set and RST is not set. Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20pxa2xx_keypad: Handle 0xe0xx keycodesVasily Khoruzhick
Add handling of 0xe0xx keycodes to pxa2xx_driver. Extended keycodes in keymap should be marked with most significant bit set (i.e. 0x80). Without this patch it's not possible to handle i.e. cursor keys. Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20pxa2xx_keypad: enhance emulation of KPAS, KPASMKP regsVasily Khoruzhick
Add emulation of KPAS register and proper emulation of KPASMKP regs, so now driver supports multipresses and properly works with Linux driver. Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20qdev: Fix printout of bit device properties with bit index >= 8David 'Digit' Turner
Signed-off-by: David 'Digit' Turner <digit@google.com> Acked-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20check-qdict: Fix possible crashStefan Weil
This warning is reported by cppcheck: check-qdict.c:270: warning: scanf without field width limits can crash with huge input data Fix it by limiting the field widths to 127 (both key and value take 127 characters + a terminating '\0' byte). Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20tests: Fix two memory leaksStefan Weil
Although both leaks are not really important, fix them to avoid cppcheck warnings: tests/linux-test.c:433: error: Memory leak: stack1 tests/linux-test.c:433: error: Memory leak: stack2 Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20qemu-char: Check for missing backend nameStefan Hajnoczi
Check if the backend option is missing before searching the backend table. This fixes a NULL pointer dereference when QEMU is invoked with the following invalid command-line: $ qemu -chardev id=foo,path=/tmp/socket Previously QEMU would segfault, now it produces this error message: chardev: "foo" missing backend Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20s390: Fix memory leakStefan Weil
Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20ppc405: Fix memory leakStefan Weil
Signed-off-by: Stefan Weil <weil@mail.berlios.de> Acked-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20pci: Fix memory leakStefan Weil
Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20vhost: disable on tap link downMichael S. Tsirkin
qemu makes it possible to disable link at tap which is not communicated to the guest but causes all packets to be dropped. When vhost-net is enabled, vhost needs to be aware of both the virtio link_down and the peer link_down. we switch to userspace emulation when either is down. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reported-by: pradeep <psuriset@linux.vnet.ibm.com> Acked-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20net: notify peer about link status changeMichael S. Tsirkin
qemu makes it possible to disable link at tap which is not communicated to the guest but causes all packets to be dropped. This works for virtio userspace, as qemu stops giving it packets, but not for virtio-net connected to vhost-net as that does not get notified about this change. Notify peer when this happens, which will then be used by the follow-up patch to stop/start vhost-net. Note: it might be a good idea to make peer link status match tap in this case, so the guest gets an event and updates the carrier state. For now stay bug for bug compatible with what we used to have in userspace. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reported-by: pradeep <psuriset@linux.vnet.ibm.com> Acked-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20w32: Fix arguments for GetProcessAffinityMask, SetProcessAffinityMaskStefan Weil
These functions take arguments of type PDWORD_PTR which is a pointer to a DWORD_PTR, not a pointer to a DWORD. Cc: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20target-arm: Fix unsigned VQRSHL by large shift countsPeter Maydell
Correctly handle VQRSHL of unsigned values by a shift count of the width of the data type or larger, which must be special-cased in the qrshl_u* helper functions. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20target-arm: Fix signed VQRSHL by large shift countsPeter Maydell
Handle the case of signed VQRSHL by a shift count of the width of the data type or larger, which must be special cased in the qrshl_s* helper functions. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20target-arm: fix decoding of Neon 64 bit shifts.Christophe Lyon
Fix decoding of 64 bits variants of VSHRN, VRSHRN, VQSHRN, VQSHRUN, VQRSHRN, VQRSHRUN, taking into account whether inputs are unsigned or not. 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>
2011-02-20target-arm: fix Neon VQSHRN and VSHRN.Christophe Lyon
Call the normal shift helpers instead of the rounding ones. 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>
2011-02-20target-arm: Fix saturated values for Neon right shiftsPeter Maydell
Fix value returned by signed 8 and 16 bit qrshl helpers when the result has saturated. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20target-arm: fix unsigned 64 bit right shifts.Christophe Lyon
Fix range of shift amounts which always give 0 as result. 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>
2011-02-20target-arm: Fix unsigned VRSHL.s8 and .s16 right shifts by type widthChristophe Lyon
Fix handling of unsigned VRSHL.s8 and .s16 right shifts by the type width. 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>
2011-02-20target-arm: Fix signed VRSHL by large shift countsPeter Maydell
Correctly handle VRSHL of signed values by a shift count of the width of the data type or larger, which must be special-cased in the rshl_s* helper functions. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20target-arm: Fix rounding constant addition for Neon shiftsChristophe Lyon
Handle cases where adding the rounding constant could overflow in Neon shift instructions: VRSHR, VRSRA, VQRSHRN, VQRSHRUN, VRSHRN. Signed-off-by: Christophe Lyon <christophe.lyon@st.com> [peter.maydell@linaro.org: fix handling of large shifts in rshl_s32, calculate signed saturated value as other functions do.] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20target-arm: Move Neon VZIP to helper functionsPeter Maydell
Move the implementation of the Neon VUZP unzip instruction from inline code to helper functions. (At 50+ TCG ops it was well over the recommended limit for coding inline.) The helper implementations also give the correct answers where the inline implementation did not. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20target-arm: Move Neon VUZP to helper functionsPeter Maydell
Move the implementation of the Neon VUZP unzip instruction from inline code to helper functions. (At 50+ TCG ops it was well over the recommended limit for coding inline.) The helper implementations also fix the handling of the quadword version of the instruction. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20target-arm: Correct conversion of Thumb Neon dp encodings into ARMJuha Riihimäki
We handle Thumb Neon data processing instructions by converting them into the equivalent ARM encoding, as the two are very close. However the ARM encoding should have bit 28 set, not clear. This wasn't causing any problems because we don't actually look at that bit during decode; however it is better to do the conversion correctly to avoid problems later if we add checks to UNDEF on SBZ/SBO bits. 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>
2011-02-20target-arm: Fix Neon VQDMLSL instructionPeter Maydell
For VQDMLSL, negation has to occur after saturation, not before. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20target-arm: Refactor handling of VQDMULLPeter Maydell
Refactor the handling of VQDMULL so that it is dealt with in its own if() case rather than together with the accumulating instructions. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20target-arm: Implement VMULL.P8Peter Maydell
Implement VMULL.P8 (the 32x32->64 version of the polynomial multiply instruction). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20qemu-lock.h: Remove non-pthreads spinlock implementationsPeter Maydell
Since configure guarantees us that we have pthreads on all hosts except mingw (which doesn't support a USER_ONLY config), we can and should use the pthread_mutex based implementation of spin_lock() and spin_unlock() in all USER_ONLY cases. This means that all the inline-native-assembly code supporting the "USER_ONLY but not USE_NPTL" case can go away. The not-USER_ONLY case remains as empty implementations; there is no change in behaviour here. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20e1000: verify we have buffers, upfrontMichael S. Tsirkin
The spec says: Any descriptor with a non-zero status byte has been processed by the hardware, and is ready to be handled by the software. Thus, once we change a descriptor status to non-zero we should never move the head backwards and try to reuse this descriptor from hardware. This actually happened with a multibuffer packet that arrives when we don't have enough buffers. Fix by checking that we have enough buffers upfront so we never need to discard the packet midway through. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20e1000: clear EOP for multi-buffer descriptorsMichael S. Tsirkin
The e1000 spec says: if software statically allocates buffers, and uses memory read to check for completed descriptors, it simply has to zero the status byte in the descriptor to make it ready for reuse by hardware. This is not a hardware requirement (moving the hardware tail pointer is), but is necessary for performing an in–memory scan. Thus the guest does not have to clear the status byte. In case it doesn't we need to clear EOP for all descriptors except the last. While I don't know of any such guests, it's probably a good idea to stick to the spec. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reported-by: Juan Quintela <quintela@redhat.com> Acked-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20e1000: multi-buffer packet supportMichael S. Tsirkin
e1000 supports multi-buffer packets larger than rxbuf_size. This fixes the following (on linux): - in guest: ifconfig eth1 mtu 16110 - in host: ifconfig tap0 mtu 16110 ping -s 16082 <guest-ip> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Acked-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20pc: remove test on TARGET_PHYS_ADDR_BITS == 32Aurelien Jarno
Both i386 and x86_64 targets are now using target_phys_bits=64. Remove useless code. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20target-i386: set target_phys_bits to 64Aurelien Jarno
qemu i386 used to support more than 4GB of RAM through PAE, but it has been disabled for an unknown reason. Reenable it. Note that simply running qemu x86_64 and emulating a 32-bit CPU is not a solution to this problem as it is about 15% slower (it needs to emulate 64 bit registers even if half of them are not used). On the other hand, I haven't seen any measurable impact by switching target_phys_bits to 64. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20Merge branch 'linux-user-for-upstream' of git://gitorious.org/qemu-maemo/qemuAurelien Jarno
* 'linux-user-for-upstream' of git://gitorious.org/qemu-maemo/qemu: linux-user: correct core dump format linux-user: Define target alignment size linux-user: Support the epoll syscalls linux-user: in linux-user/strace.c, tswap() is useless linux-user: add rmdir() strace
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