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2012-09-21scsi: introduce scsi_cdb_length and scsi_data_cdb_lengthPaolo Bonzini2-5/+20
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-21scsi-disk: fix check for out-of-range LBAPaolo Bonzini1-1/+5
This fix is needed to correctly handle 0-block read and writes. Without it, a 0-block access at LBA 0 would underflow. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-21scsi-disk: introduce check_lba_rangePaolo Bonzini1-8/+16
Abstract the test for an out-of-range (starting block, block count) pair. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-21iSCSI: We dont need to explicitely call qemu_notify_event() any moreRonnie Sahlberg1-6/+0
We no longer need to explicitely call qemu_notify_event() any more since this is now done automatically any time the filehandles we listen to change. Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-21iSCSI: We need to support SG_IO also from iscsi_ioctl()Ronnie Sahlberg1-0/+17
We need to support SG_IO from the synchronous iscsi_ioctl() since scsi-block uses this to do an INQ to the device to discover its properties This patch makes scsi-block work with iscsi. Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-21target-xtensa: don't emit extra tcg_gen_goto_tbMax Filippov1-1/+3
Unconditional gen_check_loop_end at the end of disas_xtensa_insn can emit tcg_gen_goto_tb with slot id already used in the TB (e.g. when TB ends at LEND with a branch). Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Cc: qemu-stable <qemu-stable@nongnu.org> Signed-off-by: malc <av1474@comtv.ru>
2012-09-21target-xtensa: fix extui shift amountMax Filippov1-3/+21
extui opcode only uses lowermost op1 bit for sa4. Reported-by: malc <av1474@comtv.ru> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Cc: qemu-stable <qemu-stable@nongnu.org> Signed-off-by: malc <av1474@comtv.ru>
2012-09-19tcg/optimize: fix end of basic block detectionAurelien Jarno1-13/+9
Commit e31b0a7c050711884ad570fe73df806520953618 fixed copy propagation on 32-bit host by restricting the copy between different types. This was the wrong fix. The real problem is that the all temps states should be reset at the end of a basic block. This was done by adding such operations in the switch, but brcond2 was forgotten (that's why the crash was only observed on 32-bit hosts). Fix that by looking at the TCG_OPF_BB_END instead. We need to keep the case for op_set_label as temps might be modified through another path. Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-19target-mips: Implement Loongson Multimedia InstructionsRichard Henderson4-4/+1180
Implements all of the COP2 instructions except for the S<cond> family of comparisons. The documentation is unclear for those. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-19target-mips: Always evaluate debugging macro argumentsRichard Henderson1-14/+17
this will prevent some of the compilation errors with debugging enabled from creeping back in. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-19target-mips: Fix MIPS_DEBUG.Richard Henderson1-36/+38
The macro uses the DisasContext. Pass it around as needed. Signed-off-by: Richard Henderson <rth@twiddle.net> Acked-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-19target-mips: Set opn in gen_ldst_multiple.Richard Henderson1-0/+6
Used by MIPS_DEBUG, when enabled. Signed-off-by: Richard Henderson <rth@twiddle.net> Acked-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-19hw/pflash_cfi0[12]: Use host-utils.h ctz32()Peter Maydell2-72/+2
Drop the private reimplementation of ctz32() from pflash_cfi0[12] in favour of using the standard version from host-utils.h. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-19pflash_cfi01: fix vendor specific extended queryAurelien Jarno1-1/+3
pflash_cfi01 announces a version number of 1.1, which implies "Protection Register Information" and "Burst Read information" sections, which are not provided. Decrease the version number to 1.0 so that only the "Protection Register Information" section is needed. Set the number of protection fields (0x3f) to 0x01, as 0x00 means 256 protections field, which makes the CFI table bigger than the current implementation, causing some kernels to fail to read it. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-19revert "TCG: fix copy propagation"Aurelien Jarno2-14/+6
Given the copy propagation breakage on 32-bit hosts has been fixed commit e31b0a7c050711884ad570fe73df806520953618 can be reverted. Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-19tcg: mark set_label with TCG_OPF_BB_END flagAurelien Jarno2-6/+1
set_label is effectively the end of a basic block, as no optimization can be made accross it. It was treated as such in the liveness analysis code, but as a special case. Mark it with TCG_OPF_BB_END flag so that this information can be used by other parts of the TCG code, and remove the special case in the liveness analysis code. Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-19tcg/i386: allow constants in load/store opsAurelien Jarno1-13/+37
On x86, it is possible to move a constant value to memory. Add code to handle a constant argument to load/store ops. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-19xilinx_timer: Fix a compile error if debug enabledChris Wulff1-1/+2
There was a missing include of qemu-log and a variable name in a printf was out of date. Signed-off-by: Chris Wulff <crwulff@gmail.com> Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
2012-09-19xilinx: fix names of ethernet and dma links.Peter A. G. Crosthwaite1-2/+4
These names were incorrect. Fixed to match to actual link names Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
2012-09-19xilinx.h: Error check when setting linksPeter A. G. Crosthwaite1-2/+8
Assert that the ethernet and dma controller are sucessfully linked to their peers. Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
2012-09-19xilinx_timer: Fixed "frequency" prop namePeter A. G. Crosthwaite2-2/+3
The "frequency" qdev prop matches the "clock-frequency" property in Xilinx EDK. Renamed "frequency" -> "clock-frequency" accordingly. Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
2012-09-19xilinx_timer: Send dbg msgs to stderr not stdoutPeter A. G. Crosthwaite1-4/+4
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
2012-09-19xilinx_timer: Removed comma in device namePeter A. G. Crosthwaite2-3/+3
Fixes an error in a61e4b07a30c062260d2d01771773f14820d1eb7 Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
2012-09-19arch_init.c: Improve '-soundhw help' for non-HAS_AUDIO_CHOICE archsPeter Maydell1-0/+5
For architectures which don't set HAS_AUDIO_CHOICE, improve the '-soundhw help' message so that it doesn't simply print an empty list, implying no sound support at all. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: malc <av1474@comtv.ru>
2012-09-17Revert "Add ability to disable build of all targets"Anthony Liguori1-4/+9
This reverts commit 66d5499b3754b83c09487259c08fe2ce73188a59. This commit broke --target-list="x86_64-softmmu" and the fix isn't immediatley obvious. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-17cpu_physical_memory_write_rom() needs to do TB invalidatesDavid Gibson1-0/+7
cpu_physical_memory_write_rom(), despite the name, can also be used to write images into RAM - and will often be used that way if the machine uses load_image_targphys() into RAM addresses. However, cpu_physical_memory_write_rom(), unlike cpu_physical_memory_rw() doesn't invalidate any cached TBs which might be affected by the region written. This was breaking reset (under full emu) on the pseries machine - we loaded our firmware image into RAM, and while executing it rewrite the code at the entry point (correctly causing a TB invalidate/refresh). When we reset the firmware image was reloaded, but the TB from the rewrite was still active and caused us to get an illegal instruction trap. This patch fixes the bug by duplicating the tb invalidate code from cpu_physical_memory_rw() in cpu_physical_memory_write_rom(). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-17qemu-char: BUGFIX, don't call FD_ISSET with negative fdDavid Gibson2-2/+6
tcp_chr_connect(), unlike for example udp_chr_update_read_handler() does not check if the fd it is using is valid (>= 0) before passing it to qemu_set_fd_handler2(). If using e.g. a TCP serial port, which is not initially connected, this can result in -1 being passed to FD_ISSET, which has undefined behaviour. On x86 it seems to harmlessly return 0, but on PowerPC, it causes a fortify buffer overflow error to be thrown. This patch fixes this by putting an extra test in tcp_chr_connect(), and also adds an assert qemu_set_fd_handler2() to catch other such errors on all platforms, rather than just some. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-17Revert 455aa1e08 and c3767ed0ebAnthony Liguori1-6/+1
commit c3767ed0eb5d0bb25fe409ae5dec06e3411ff1b6 qemu-char: (Re-)connect for tcp_chr_write() unconnected writing Has no hope of working because tcp_chr_connect() does not actually connect. 455aa1e08 just fixes the SEGV with server() but the attempt to connect a client socket is still completely broken. This patch reverts both. Reported-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-17pc: Drop practically unused BOCHS BIOS debug portsJan Kiszka1-27/+0
We have debugcon these days to listen on those ports that receive debug messages. Also drop the others that have no effect anymore. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-17add -machine mem-merge=on|off optionLuiz Capitulino3-4/+26
It allows to disable memory merge support (KSM on Linux), which is enabled by default otherwise. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-15Remove unused CONFIG_TCG_PASS_AREG0 and dead codeBlue Swirl31-525/+53
Now that CONFIG_TCG_PASS_AREG0 is enabled for all targets, remove dead code and support for !CONFIG_TCG_PASS_AREG0 case. Remove dyngen-exec.h and all references to it. Although included by hw/spapr_hcall.c, it does not seem to use it. Remove unused HELPER_CFLAGS. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2012-09-15target-mips: switch to AREG0 free modeBlue Swirl6-1086/+1163
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Acked-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-15target-sh4: switch to AREG0 free modeBlue Swirl5-189/+195
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Acked-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-cris: Switch to AREG0 free modeAurelien Jarno6-187/+181
Add an explicit CPUCRISState parameter instead of relying on AREG0, and use cpu_ld* in translation and interrupt handling. Remove AREG0 swapping in tlb_fill(). Switch to AREG0 free mode Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-15target-cris: Avoid AREG0 for helpersAurelien Jarno4-77/+88
Add an explicit CPUCRISState parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-15target-microblaze: switch to AREG0 free modeBlue Swirl5-118/+110
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-arm: final conversion to AREG0 free modeBlue Swirl6-21/+16
Convert code load functions and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-15target-arm: convert remaining helpersBlue Swirl3-125/+125
Convert remaining helpers to AREG0 free mode: add an explicit CPUState parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-15target-arm: convert void helpersBlue Swirl3-18/+18
Add an explicit CPUState parameter instead of relying on AREG0. For easier review, convert only op helpers which don't return any value. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-15target-unicore32: switch to AREG0 free modeBlue Swirl5-75/+58
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Tested-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-m68k: avoid using cpu_single_envBlue Swirl1-130/+140
Pass around CPUState instead of using global cpu_single_env. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-m68k: switch to AREG0 free modeBlue Swirl5-82/+68
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-lm32: switch to AREG0 free modeBlue Swirl5-46/+35
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-s390x: avoid cpu_single_envBlue Swirl1-173/+183
Pass around CPUState instead of using global cpu_single_env. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15configure: properly check if -lrt and -lm is neededNatanael Copa1-2/+29
Fixes build against uClibc. uClibc provides 2 versions of clock_gettime(), one with realtime support and one without (this is so you can avoid linking in -lrt unless actually needed). This means that the clock_gettime() don't need -lrt. We still need it for timer_create() so we check for this function in addition. We also need check if -lm is needed for isnan(). Both -lm and -lrt are needed for libs_qga. Signed-off-by: Natanael Copa <ncopa@alpinelinux.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15tcg: Fix MAX_OPC_PARAM_IARGSStefan Weil2-1/+3
DEF_HELPER_FLAGS_5 was added some time ago without adjusting MAX_OPC_PARAM_IARGS. Fixing the definition becomes more important as QEMU is using an increasing number of helper functions called with 5 arguments. Add also a comment to avoid future problems when DEF_HELPER_FLAGS_6 will be added. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-14configure: fix seccomp checkYann E. MORIN1-1/+1
Currently, if libseccomp is missing but the user explicitly requested seccomp support using --enable-seccomp, configure silently ignores the situation and disables seccomp support. This is unlike all other tests that explicitly fail in such situation. Fix that. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
2012-09-14net: EAGAIN handling for net/socket.c TCPStefan Hajnoczi1-5/+31
Replace spinning send_all() with a proper non-blocking send. When the socket write buffer limit is reached, we should stop trying to send and wait for the socket to become writable again. Non-blocking TCP sockets can return in two different ways when the write buffer limit is reached: 1. ret = -1 and errno = EAGAIN/EWOULDBLOCK. No data has been written. 2. ret < total_size. Short write, only part of the message was transmitted. Handle both cases and keep track of how many bytes have been written in s->send_index. (This includes the 'length' header before the actual payload buffer.) Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-09-14net: EAGAIN handling for net/socket.c UDPStefan Hajnoczi1-2/+12
Implement asynchronous send for UDP (or other SOCK_DGRAM) sockets. If send fails with EAGAIN we wait for the socket to become writable again. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-09-14net: asynchronous send/receive infrastructure for net/socket.cStefan Hajnoczi1-6/+52
The net/socket.c net client is not truly asynchronous. This patch borrows the qemu_set_fd_handler2() code from net/tap.c as the basis for proper asynchronous send/receive. Only read packets from the socket when the peer is able to receive. This avoids needless queuing. Later patches implement asynchronous send. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>