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* linux-user: Set r14 on exit from microblaze syscallPeter Maydell2016-05-271-0/+7
| | | | | | | | | | | | | | | | | All syscall exits on microblaze result in r14 being equal to the PC we return to, because the kernel syscall exit instruction "rtbd" does this. (This is true even for sigreturn(); note that r14 is not a userspace-usable register as the kernel may clobber it at any point.) Emulate the setting of r14 on exit; this isn't really a guest visible change for valid guest code because r14 isn't reliably observable anyway. However having the code and the comment helps to explain why it's ok for the ERESTARTSYS handling not to undo the changes to r14 that happen on syscall entry. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for tilegx targetsPeter Maydell2016-05-271-8/+13
| | | | | | | | | | | | | | | Update the tilegx main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * return -TARGET_QEMU_ESIGRETURN from sigreturn rather than current R_RE * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state Note that this fixes a bug where a sigreturn which happened to have an errno value in TILEGX_R_RE would incorrectly cause TILEGX_R_ERR to get set. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for CRIS targetsTimothy E Baldwin2016-05-271-1/+5
| | | | | | | | | | | | | | | | Update the CRIS main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * set all guest CPU state within signal.c code on sigreturn * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-34-git-send-email-T.E.Baldwin99@members.leeds.ac.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [PMM: tweak commit message; drop TARGET_USE_ERESTARTSYS define] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for S390 targetsTimothy E Baldwin2016-05-271-3/+9
| | | | | | | | | | | | | | | | Update the S390 main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * set all guest CPU state within signal.c code on sigreturn * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-33-git-send-email-T.E.Baldwin99@members.leeds.ac.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: tweak commit message; remove stray double semicolon; drop TARGET_USE_ERESTARTSYS define] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for M68K targetsTimothy E Baldwin2016-05-271-9/+15
| | | | | | | | | | | | | | | Update the M68K main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * set all guest CPU state within signal.c code on sigreturn * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-32-git-send-email-T.E.Baldwin99@members.leeds.ac.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: tweak commit message; drop TARGET_USE_ERESTARTSYS define] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for OpenRISC targetsTimothy E Baldwin2016-05-271-8/+14
| | | | | | | | | | | | | | | | | Update the OpenRISC main loop code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state (We don't implement sigreturn on this target so there is no code there to update.) Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-31-git-send-email-T.E.Baldwin99@members.leeds.ac.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: tweak commit message; drop TARGET_USE_ERESTARTSYS define] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for UniCore32 targetsTimothy E Baldwin2016-05-271-1/+6
| | | | | | | | | | | | | | | | | Update the UniCore32 main loop code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state (We don't support signals on this target so there is no sigreturn code to update.) Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-30-git-send-email-T.E.Baldwin99@members.leeds.ac.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: tweak commit message; drop TARGET_USE_ERESTARTSYS define] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for Alpha targetsTimothy E Baldwin2016-05-271-2/+5
| | | | | | | | | | | | | | | Update the Alpha main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-13-git-send-email-T.E.Baldwin99@members.leeds.ac.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: tweak commit message; drop TARGET_USE_ERESTARTSYS define; PC is env->pc, not env->ir[IR_PV]] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for SH4 targetsTimothy E Baldwin2016-05-271-1/+5
| | | | | | | | | | | | | | | Update the SH4 main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * set all guest CPU state within signal.c code on sigreturn * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-12-git-send-email-T.E.Baldwin99@members.leeds.ac.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: tweak commit message; drop TARGET_USE_ERESTARTSYS define] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for SPARC targetsTimothy E Baldwin2016-05-271-0/+3
| | | | | | | | | | | | | | | Update the SPARC main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * set all guest CPU state within signal.c code on sigreturn * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-9-git-send-email-T.E.Baldwin99@members.leeds.ac.uk [PMM: Commit message tweaks; drop TARGET_USE_ERESTARTSYS define] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for PPC targetsTimothy E Baldwin2016-05-271-0/+4
| | | | | | | | | | | | | | Update the PPC main loop code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn (We already handle TARGET_QEMU_ESIGRETURN.) Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-8-git-send-email-T.E.Baldwin99@members.leeds.ac.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: tweak commit message; drop TARGET_USE_ERESTARTSYS define] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for MIPS targetsTimothy E Baldwin2016-05-271-0/+4
| | | | | | | | | | | | | | Update the MIPS main loop code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn (We already handle TARGET_QEMU_ESIGRETURN.) Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-7-git-send-email-T.E.Baldwin99@members.leeds.ac.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: tweak commit message; drop TARGET_USE_ERESTARTSYS define] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for ARM targetsTimothy E Baldwin2016-05-271-18/+30
| | | | | | | | | | | | | | | Update the 32-bit and 64-bit ARM main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * set all guest CPU state within signal.c code on sigreturn * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-6-git-send-email-T.E.Baldwin99@members.leeds.ac.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: tweak commit message; drop TARGET_USE_ERESTARTSYS define] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Support for restarting system calls for x86 targetsTimothy E Baldwin2016-05-271-18/+29
| | | | | | | | | | | | | | | | Update the x86 main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * set all guest CPU state within signal.c code rather than passing it back out as the "return code" from do_sigreturn() * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch EAX Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-5-git-send-email-T.E.Baldwin99@members.leeds.ac.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: Commit message tweaks; drop TARGET_USE_ERESTARTSYS define] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* cpu: Eliminate cpudef_init(), cpudef_setup()Eduardo Habkost2016-05-241-3/+0Star
| | | | | | | x86_cpudef_init() doesn't do anything anymore, cpudef_init(), cpudef_setup(), and x86_cpudef_init() can be finally removed. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
* cpu: move exec-all.h inclusion out of cpu.hPaolo Bonzini2016-05-191-0/+1
| | | | | | | | | | exec-all.h contains TCG-specific definitions. It is not needed outside TCG-specific files such as translate.c, exec.c or *helper.c. One generic function had snuck into include/exec/exec-all.h; move it to include/qom/cpu.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* log: do not use CONFIG_USER_ONLYPaolo Bonzini2016-05-191-0/+1
| | | | | | | This decouples logging further from config-target.h Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* linux-user: arm: Handle (ignore) EXCP_YIELD in ARM cpu_loop()Peter Maydell2016-04-041-0/+6
| | | | | | | | | | | | | | | The new-in-ARMv8 YIELD instruction has been implemented to throw an EXCP_YIELD back up to the QEMU main loop. In system emulation we use this to decide to schedule a different guest CPU in SMP configurations. In usermode emulation there is nothing to do, so just ignore it and resume the guest. This prevents an abort with "unhandled CPU exception 0x10004" if the guest process uses the YIELD instruction. Reported-by: Hunter Laux <hunterlaux@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1456833171-31900-1-git-send-email-peter.maydell@linaro.org
* util: move declarations out of qemu-common.hVeronia Bahaa2016-03-221-1/+3
| | | | | | | | | | Move declarations out of qemu-common.h for functions declared in utils/ files: e.g. include/qemu/path.h for utils/path.c. Move inline functions out of qemu-common.h and into new files (e.g. include/qemu/bcd.h) Signed-off-by: Veronia Bahaa <veroniabahaa@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* linux-user: arm: handle CPSR.E correctly in strex emulationPaolo Bonzini2016-03-041-7/+43
| | | | | | | | | | | | | | | Now that CPSR.E is set correctly, prepare for when setend will be able to change it; bswap data in and out of strex manually by comparing SCTLR.B, CPSR.E and TARGET_WORDS_BIGENDIAN (we do not have the luxury of using TCGMemOps). Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> [ PC changes: * Moved SCTLR/CPSR logic to arm_cpu_data_is_big_endian ] Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* linux-user: arm: set CPSR.E/SCTLR.E0E correctly for BE modePeter Crosthwaite2016-03-041-1/+2
| | | | | | | | | If doing big-endian linux-user mode, set both the CPSR.E and SCTLR.E0E bits. This sets big-endian mode for data accesses. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* target-arm: implement SCTLR.B, drop bswap_codePaolo Bonzini2016-03-041-3/+7
| | | | | | | | | | | | | | | | | | | | | bswap_code is a CPU property of sorts ("is the iside endianness the opposite way round to TARGET_WORDS_BIGENDIAN?") but it is not the actual CPU state involved here which is SCTLR.B (set for BE32 binaries, clear for BE8). Replace bswap_code with SCTLR.B, and pass that to arm_ld*_code. The next patches will make data fetches honor both SCTLR.B and CPSR.E appropriately. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> [PC changes: * rebased on master (Jan 2016) * s/TARGET_USER_ONLY/CONFIG_USER_ONLY * Use bswap_code() for disas_set_info() instead of raw sctlr_b ] Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* linux-user: arm: pass env to get_user_code_*Paolo Bonzini2016-03-041-11/+9Star
| | | | | | | | | | This matches the idiom used by get_user_data_* later in the series, and will help when bswap_code will be replaced by SCTLR.B. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* linux-user: Use restrictive mask when calling cpsr_write()Peter Maydell2016-02-261-1/+2
| | | | | | | | | | When linux-user code is calling cpsr_write(), use a restrictive mask to ensure we are limiting the set of CPSR bits we update. In particular, don't allow the mode bits to be changed. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com> Message-id: 1455556977-3644-5-git-send-email-peter.maydell@linaro.org
* target-arm: Add write_type argument to cpsr_write()Peter Maydell2016-02-261-3/+3
| | | | | | | | | | Add an argument to cpsr_write() to indicate what kind of CPSR write is being requested, since the exact behaviour should differ for the different cases. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com> Message-id: 1455556977-3644-3-git-send-email-peter.maydell@linaro.org
* linux-user: set ppc64/ppc64le default CPU to POWER8Laurent Vivier2016-02-231-1/+1
| | | | | | | | | | | | | | | | Set the default to the latest CPU version to have the largest set of available features. It is also really needed in little-endian mode because POWER7 is not really supported in this mode and some distros (at least debian) generate POWER8 code for their ppc64le target. Fixes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=813698 Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Alexander Graf <agraf@suse.de> Reviewed-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* log: do not unnecessarily include qom/cpu.hPaolo Bonzini2016-02-031-0/+1
| | | | | | | | | | Split the bits that require it to exec/log.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Message-id: 1452174932-28657-8-git-send-email-den@openvz.org Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* linux-user: Clean up includesPeter Maydell2016-01-291-6/+1Star
| | | | | | | | | | Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-10-git-send-email-peter.maydell@linaro.org
* linux-user: avoid "naked" qemu_logPaolo Bonzini2015-12-171-40/+31Star
| | | | | | | | Ensure that all log writes are protected by qemu_loglevel_mask or, in serious cases, go to both the log and stderr. Reviewed-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* user: introduce "-d page"Paolo Bonzini2015-12-171-2/+2
| | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* qemu-log: introduce qemu_log_separatePaolo Bonzini2015-12-171-2/+2
| | | | | | | | In some cases, the same message is printed both on stderr and in the log. Avoid duplicate output in the default case where stderr _is_ the log, and standardize this to stderr+log where it used to use stdio+log. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* linux-user: Use g_new() & friends where that makes obvious senseMarkus Armbruster2015-10-081-1/+1
| | | | | | | | | | | | | | | g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer, for two reasons. One, it catches multiplication overflowing size_t. Two, it returns T * rather than void *, which lets the compiler catch more type errors. This commit only touches allocations with size arguments of the form sizeof(T). Same Coccinelle semantic patch as in commit b45c03f. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* s/cpu_get_real_ticks/cpu_get_host_ticks/Christopher Covington2015-10-081-2/+2
| | | | | | | | | | | This should help clarify the purpose of the function that returns the host system's CPU cycle count. Signed-off-by: Christopher Covington <cov@codeaurora.org> Acked-by: Paolo Bonzini <pbonzini@redhat.com> ppc portion Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* target-tilegx: Use TILEGX_EXCP_SIGNAL instead of TILEGX_EXCP_SEGVRichard Henderson2015-10-071-18/+23
| | | | | | Consolidate signal handling under a single exception. Signed-off-by: Richard Henderson <rth@twiddle.net>
* target-tilegx: Decode ill pseudo-instructionsChen Gang2015-10-071-0/+14
| | | | | | | | | | | | Notice raise and bpt, decoding the constants embedded in the nop addil instruction in the x0 slot. [rth: Generalize TILEGX_EXCP_OPCODE_ILL to TILEGX_EXCP_SIGNAL. Drop validation of signal values.] Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Message-Id: <1443243635-4886-1-git-send-email-gang.chen.5i5j@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
* linux-user: Treat --foo options the same as -fooMeador Inge2015-09-281-0/+4
| | | | | | | | | The system mode binaries provide a similar alias and it makes common options like --version and --help work as expected. Signed-off-by: Meador Inge <meadori@codesourcery.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: use EXIT_SUCCESS and EXIT_FAILURERiku Voipio2015-09-281-36/+36
| | | | | | | | As suggested by Laurent, use EXIT_SUCCESS and EXIT_FAILURE from stdlib.h instead of numeric values. Cc: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Add proper error messages for bad optionsMeador Inge2015-09-281-3/+7
| | | | | | | | | | | | | This patch adds better support for diagnosing option parser errors. The previous implementation just printed the usage text and exited when a bad option or argument was found. This made it very difficult to determine why the usage was being displayed and it was doubly confusing for cases like '--help' (it wasn't clear that --help was actually an error). Signed-off-by: Meador Inge <meadori@codesourcery.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Add -helpMeador Inge2015-09-281-0/+2
| | | | | | | | | This option is already available on the system mode binaries. It would be better if long options were supported (i.e. --help), but this is okay for now. Signed-off-by: Meador Inge <meadori@codesourcery.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Exit 0 when -h is usedMeador Inge2015-09-281-10/+10
| | | | | Signed-off-by: Meador Inge <meadori@codesourcery.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* target-ppc: Fix SRR0 when taking unaligned exceptionsAnton Blanchard2015-09-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We are setting SRR0 to the instruction before the one causing the unaligned exception. A quick testcase: . = 0x100 .globl _start _start: /* Cause a 0x600 */ li 3,0x1 stwcx. 3,0,3 1: b 1b . = 0x600 1: b 1b Built into something we can load as a BIOS image: gcc -mbig -c test.S ld -EB -Ttext 0x0 -o test test.o objcopy -O binary test test.bin Run with: qemu-system-ppc64 -nographic -bios test.bin Shows an incorrect SRR0 (points at the li): SRR0 0000000000000100 With the patch we get the correct SRR0: SRR0 0000000000000104 Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-tilegx: Handle atomic instructionsRichard Henderson2015-09-151-0/+166
| | | | | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* target-tilegx: Generate SEGV properlyRichard Henderson2015-09-151-0/+3
| | | | | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
* linux-user: Support tilegx architecture in linux-userChen Gang2015-09-151-0/+69
| | | | | | | | | | | | | Add main working flow feature, system call processing feature, and elf64 tilegx binary loading feature, based on Linux kernel tilegx 64-bit implementation. [rth: Moved all of the implementation of atomic instructions to a later patch.] Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <BLU436-SMTP938552D42808AA60634582B9660@phx.gbl> Signed-off-by: Richard Henderson <rth@twiddle.net>
* Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell2015-09-141-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Support for jemalloc * qemu_mutex_lock_iothread "No such process" fix * cutils: qemu_strto* wrappers * iohandler.c simplification * Many other fixes and misc patches. And some MTTCG work (with Emilio's fixes squashed): * Signal-free TCG kick * Removing spinlock in favor of QemuMutex * User-mode emulation multi-threading fixes/docs # gpg: Signature made Thu 10 Sep 2015 09:03:07 BST using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" * remotes/bonzini/tags/for-upstream: (44 commits) cutils: work around platform differences in strto{l,ul,ll,ull} cpu-exec: fix lock hierarchy for user-mode emulation exec: make mmap_lock/mmap_unlock globally available tcg: comment on which functions have to be called with mmap_lock held tcg: add memory barriers in page_find_alloc accesses remove unused spinlock. replace spinlock by QemuMutex. cpus: remove tcg_halt_cond and tcg_cpu_thread globals cpus: protect work list with work_mutex scripts/dump-guest-memory.py: fix after RAMBlock change configure: Add support for jemalloc add macro file for coccinelle configure: factor out adding disas configure vhost-scsi: fix wrong vhost-scsi firmware path checkpatch: remove tests that are not relevant outside the kernel checkpatch: adapt some tests to QEMU CODING_STYLE: update mixed declaration rules qmp: Add example usage of strto*l() qemu wrapper cutils: Add qemu_strtoull() wrapper cutils: Add qemu_strtoll() wrapper ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * replace spinlock by QemuMutex.KONRAD Frederic2015-09-091-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | spinlock is only used in two cases: * cpu-exec.c: to protect TranslationBlock * mem_helper.c: for lock helper in target-i386 (which seems broken). It's a pthread_mutex_t in user-mode, so we can use QemuMutex directly, with an #ifdef. The #ifdef will be removed when multithreaded TCG will need the mutex as well. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Message-Id: <1439220437-23957-5-git-send-email-fred.konrad@greensocs.com> Signed-off-by: Emilio G. Cota <cota@braap.org> [Merge Emilio G. Cota's patch to remove volatile. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* | linux-user: Fix warnings caused by missing 'static' attributeStefan Weil2015-09-111-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Warnings from the Sparse static analysis tool: linux-user/main.c:40:12: warning: symbol 'filename' was not declared. Should it be static? linux-user/main.c:41:12: warning: symbol 'argv0' was not declared. Should it be static? linux-user/main.c:42:5: warning: symbol 'gdbstub_port' was not declared. Should it be static? linux-user/main.c:43:11: warning: symbol 'envlist' was not declared. Should it be static? Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* | target-arm: Wire up HLT 0xf000 as the A64 semihosting instructionPeter Maydell2015-09-071-0/+3
|/ | | | | | | | | | | For the A64 instruction set, the semihosting call instruction is 'HLT 0xf000'. Wire this up to call do_arm_semihosting() if semihosting is enabled. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Christopher Covington <christopher.covington@linaro.org> Tested-by: Christopher Covington <cov@codeaurora.org> Message-id: 1439483745-28752-10-git-send-email-peter.maydell@linaro.org
* linux-user: remove --enable-guest-base/--disable-guest-baseLaurent Vivier2015-08-241-12/+0Star
| | | | | | | | | | | | | | | | | | All tcg host architectures now support the guest base and as there is no real performance lost, it can be always enabled. Anyway, guest base use can be disabled lively by setting guest base to 0. CONFIG_USE_GUEST_BASE is defined as (USE_GUEST_BASE && USER_ONLY), it should have to be replaced by CONFIG_USER_ONLY in non CONFIG_USER_ONLY parts, but as some other parts are using !CONFIG_SOFTMMU I have chosen to use !CONFIG_SOFTMMU instead. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <1440373328-9788-2-git-send-email-laurent@vivier.eu> Signed-off-by: Richard Henderson <rth@twiddle.net>
* linux-user: Fix MIPS N64 trap and break instruction bugAndrew Bennett2015-07-151-2/+2
| | | | | | | | | | | | | | | For the MIPS N64 ABI when QEMU reads the break/trap instruction so that it can inspect the break/trap code it reads 8 rather than 4 bytes which means it finds the code field from the instruction after the break/trap instruction. This then causes the break/trap handling code to fail because it does not understand the code number. The fix forces QEMU to always read 4 bytes of instruction data rather than deciding how much to read based on the ABI. Signed-off-by: Andrew Bennett <andrew.bennett@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
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