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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
2011-02-20i8254: convert to qdevBlue Swirl
Convert to qdev. Don't expose PITState. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20vga-isa: make optionalBlue Swirl
Ignore failure with vga-isa device creation, but print a warning message. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20vga-isa: convert to qdevBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20applesmc: make optionalBlue Swirl
Based on patch by David Ahern. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20fdc: make optionalBlue Swirl
Ignore failure with fdc device creation. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20fdc: refactor device creationBlue Swirl
Turn fdc_init_isa into an inline function. Get floppy geometry directly from the drives. Don't expose FDCtrl. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20fdc: use FDriveType for floppy drive typeBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20fdc: move floppy geometry guessing to block.cBlue Swirl
Other geometry guessing functions already reside in block.c. Remove some unused or debugging only fields. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20serial: make optionalBlue Swirl
Ignore failure with serial device creation. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20serial: refactor device creationBlue Swirl
Turn serial_init into an inline function. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20ne2000_isa: make optionalBlue Swirl
Ignore failure with ne2000_isa device creation. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20ne2000_isa: refactor device creationBlue Swirl
Turn isa_ne2000_init into an inline function. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20parallel: make optionalBlue Swirl
Ignore failure with parallel device creation. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-20parallel: refactor device creationBlue Swirl
Turn parallel_init into an inline function. Don't expose ParallelState. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-17Fix vmport segfault (v2)Marcelo Tosatti
Fix regression caused by qdev conversion. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-02-17linux-user: correct core dump formatLaurent Vivier
This patch allows to really use the core dumped by qemu with guest architecture tools. - it adds a missing bswap_phdr() for the program headers of memory regions. "objdump -x" sample: BEFORE: 0x1000000 off 0x00200000 vaddr 0x00000400 paddr 0x00000000 align 2**21 filesz 0x00000000 memsz 0x00100000 flags --- 0x1000000 off 0x00200000 vaddr 0x00100400 paddr 0x00000000 align 2**21 filesz 0x00000000 memsz 0x00080000 flags --- 6000000 AFTER: LOAD off 0x00002000 vaddr 0x00040000 paddr 0x00000000 align 2**13 filesz 0x00000000 memsz 0x00001000 flags --- LOAD off 0x00002000 vaddr 0x00041000 paddr 0x00000000 align 2**13 filesz 0x00000000 memsz 0x00000800 flags rw- - it doesn't pad the note size to sizeof(int32_t). On m68k the NT_PRSTATUS note size is 154 and must not be rounded up to 156, because this value is checked by objdump and gdb. "gdb" symptoms: "warning: Couldn't find general-purpose registers in core file." "objdump -x" sample: BEFORE: Sections: Idx Name Size VMA LMA File off Algn 0 note0 000001c4 00000000 00000000 000003b4 2**0 CONTENTS, READONLY 1 .auxv 00000070 00000000 00000000 00000508 2**2 CONTENTS 2 proc1 00100000 00000400 00000000 00200000 2**10 READONLY AFTER: Sections: Idx Name Size VMA LMA File off Algn 0 note0 000001c4 00000000 00000000 000003b4 2**0 CONTENTS, READONLY 1 .reg/19022 00000050 00000000 00000000 0000040e 2**2 CONTENTS 2 .reg 00000050 00000000 00000000 0000040e 2**2 CONTENTS 3 .auxv 00000070 00000000 00000000 00000508 2**2 CONTENTS 4 load1 00000000 00040000 00000000 00002000 2**13 ALLOC, READONLY Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
2011-02-17linux-user: Define target alignment sizeLaurent Vivier
Datatype alignment can be found using following application: int main(void) { printf("alignof(short) %ld\n", __alignof__(short)); printf("alignof(int) %ld\n", __alignof__(int)); printf("alignof(long) %ld\n", __alignof__(long)); printf("alignof(long long) %ld\n", __alignof__(long long)); } This patch includes following alignments: i386 alignof(short) 2 alignof(int) 4 alignof(long) 4 alignof(long long) 8 x86_64 alignof(short) 2 alignof(int) 4 alignof(long) 8 alignof(long long) 8 arm alignof(short) 2 alignof(int) 4 alignof(long) 4 alignof(long long) 4 m68k (680x0) alignof(short) 2 alignof(int) 2 alignof(long) 2 alignof(long long) 2 mips alignof(short) 2 alignof(int) 4 alignof(long) 4 alignof(long long) 8 ppc alignof(short) 2 alignof(int) 4 alignof(long) 4 alignof(long long) 8 for other targets, use by default (2,4,4,8). Please, update for your favorite target... Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
2011-02-17linux-user: Support the epoll syscallsPeter Maydell
Support the epoll family of syscalls: epoll_create(), epoll_create1(), epoll_ctl(), epoll_wait() and epoll_pwait(). Note that epoll_create1() and epoll_pwait() are later additions, so we have to test separately in configure for their presence. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
2011-02-17linux-user: in linux-user/strace.c, tswap() is uselessLaurent Vivier
Syscall parameters are already swapped by the caller. This patch removes useless tswap() from strace.c $ QEMU_STRACE=1 chroot /m68k mknod myramdisk b 1 1 with tswap() ... 29944 mknod("myramdisk",026630200000) = 0 ... without tswap() ... 30042 mknod("myramdisk",S_IFBLK|0666,makedev(1,1)) = 0 ... natively: $ strace touch mytouch ... open("mytouch", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3 ... $ QEMU_STRACE=1 chroot /m68k touch mytouch with tswap() ... 30368 open("/usr/share/locale/locale.alias",O_RDONLY) = 3 30368 fstat64(50331648,0x4080032c) = 0 ... 30368 open("mytouch",O_RDONLY|O_CREAT|O_LARGEFILE|O_NOCTTY|O_NONBLOCK|0x1) = 0 ... without tswap() ... 30572 open("/usr/share/locale/locale.alias",O_RDONLY) = 3 30572 fstat64(3,0x4080032c) = 0 ... 30572 open("mytouch",O_WRONLY|O_CREAT|O_LARGEFILE|O_NOCTTY|O_NONBLOCK,0666) = 0 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Fixes by Riku Voipio: add casts Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
2011-02-17linux-user: add rmdir() straceLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
2011-02-16Merge remote branch 'kwolf/for-anthony' into stagingAnthony Liguori
2011-02-16Merge remote branch 'qemu-kvm/uq/master' into stagingAnthony Liguori
2011-02-16Handle icount for powerpc tbl/tbu/decr load and store.Tristan Gingold
Handle option '-icount X' on powerpc targets. Signed-off-by: Tristan Gingold <gingold@adacore.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2011-02-16Merge mainstone.h header into mainstone.cDmitry Eremin-Solenikov
Now the only user of mainstone.h is mainstone.c file. Merge header into board file. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-02-16mainstone: convert FPGA emulation code to use QDev/SysBusDmitry Eremin-Solenikov
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-02-16mainstone: correct and simplify irq handlingDmitry Eremin-Solenikov
Simplify IRQ handling to stop setting an input irq pin. As a win, also get correct IRQ status after save/load cycle. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-02-14Fix build from previous commitAnthony Liguori
I unfortunately got on an unnamed branch and pushed the wrong bits Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-14PATCH] slirp: fix buffer overrunBruce Rogers
Since the addition of the slirp member to struct mbuf, the value of SLIRP_MSIZE and the initialization of m_size have not been correct, resulting in overrunning the end of the malloc'd buffer in some cases. Signed-off-by: Bruce Rogers <brogers@novell.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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