aboutsummaryrefslogtreecommitdiff
path: root/cpu-exec.c
AgeCommit message (Collapse)Author
2009-04-04Make i386-softmmu boot on Sparc hostblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6971 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-16Delete some unused macros detected with -Wp,-Wunused-macros useblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6856 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-06Fix race condition on access to env->interrupt_requestaurel32
env->interrupt_request is accessed as the bit level from both main code and signal handler, making a race condition possible even on CISC CPU. This causes freeze of QEMU under high load when running the dyntick clock. The patch below move the bit corresponding to CPU_INTERRUPT_EXIT in a separate variable, declared as volatile sig_atomic_t, so it should be work even on RISC CPU. We may want to move the cpu_interrupt(env, CPU_INTERRUPT_EXIT) case in its own function and get rid of CPU_INTERRUPT_EXIT. That can be done later, I wanted to keep the patch short for easier review. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6728 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15global s/loglevel & X/qemu_loglevel_mask(X)/ (Eduardo Habkost)aliguori
These are references to 'loglevel' that aren't on a simple 'if (loglevel & X) qemu_log()' statement. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6340 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15Convert references to logfile/loglevel to use qemu_log*() macrosaliguori
This is a large patch that changes all occurrences of logfile/loglevel global variables to use the new qemu_log*() macros. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6338 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-14Get rid of user_mode_onlyaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6305 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-14Remove all traces of __powerpc__malc
According to $GCC/gcc/config/rs6000/rs6000-c.c _ARCH_PPC is the ubiquitous define which should be used to test whether gcc targets PowerPC, on 64bit platforms _ARCH_PPC64 will be also defined. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6301 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-04Update FSF address in GPL/LGPL boilerplateaurel32
The attached patch updates the FSF address in the GPL/LGPL boilerplate in most GPL/LGPLed files, and also in COPYING.LIB. Signed-off-by: Stuart Brady <stuart.brady@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6162 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-20Fix remaining compiler warnings for mips targets.ths
Signed-off-by: Stefan Weil <weil@mail.berlios.de> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6111 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-19When -icount is used and a TB is recompiled due to an IO access pbrook
shortly after an IRQ has been raised, env->exception_index will still be set to EXCP_IRQ when cpu_io_recompile calls cpu_resume_from_signal. This causes qemu to repeat the IRQ trap, with disasterous consequences. I suspect this "works" most of the time because linux tends to drop back to svc mode before doing actual IRQ processing, and be fairly tolerant of spurious IRQ traps. Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6100 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-13target-i386: SVM: acknowledge interrupt only after it is takenaurel32
SVM specifies that the V_IRQ mask is only to be removed, if the interrupt that is to be delivered actually is delivered. As of the SVM rewrite, this mask is always unmasked when the main cpu loop is processed, leaving a corner case where calling the interrupt handler causes a #PF. In that case (booting Linux / starting gfxboot) the current implementation tells the VMM the interrupt is taken, even though it is not. This patch modifies the VIRQ unmasking to occur after do_interrupt, making gfxboot work again. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6008 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-11target-ppc: rework exception codeaurel32
... also remove two warnings. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5989 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-05Attached patch make cpu-exec.c compile on NetBSD.blueswir1
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5887 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-25Use sys-queue.h for break/watchpoint managment (Jan Kiszka)aliguori
This switches cpu_break/watchpoint_* to TAILQ wrappers, simplifying the code and also fixing a use after release issue in cpu_break/watchpoint_remove_all. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5799 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-22target-ppc: convert exceptions generation to TCGaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5772 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18Add debug exception hook (Jan Kiszka)aliguori
This patch allows to hook into the delivery of EXCP_DEBUG so that other use beyond guest debugging becomes possible. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5745 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18Introduce BP_WATCHPOINT_HIT flag (Jan Kiszka)aliguori
When one watchpoint is hit, others might have triggered as well. To support users of the watchpoint API which need to detect such cases, the BP_WATCHPOINT_HIT flag is introduced and maintained. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5744 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18Refactor translation block CPU state handling (Jan Kiszka)aliguori
This patch refactors the way the CPU state is handled that is associated with a TB. The basic motivation is to move more arch specific code out of generic files. Specifically the long #ifdef clutter in tb_find_fast() has to be overcome in order to avoid duplicating it for the gdb watchpoint fixes (patch "Restore pc on watchpoint hits"). Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5736 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18Convert CPU_PC_FROM_TB to static inline (Jan Kiszka)aliguori
as macros should be avoided when possible. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5735 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-17TCG variable type checking.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5729 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-10KVM: simplify kvm_cpu_exec hookaliguori
We don't need to use cpu_loop_exit() because we never use the condition codes so everything can be folded into a single case. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5669 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-06Fix interrupt exclusion via SSTEP_NOIRQmalc
Commit #5620 revealed an issue of the SSTEP_NOIRQ masking that was applied on all interrupt sources (including internal ones) when single stepping through the guest. Due to that commit, we now ended up in an infinite loop when CPU_INTERRUPT_EXIT was pending on SSTEP resume. That was due to #5620 eating all TBs while CPU_INTERRUPT_EXIT is pending, but SSTEP_NOIRQ preventing CPU_INTERRUPT_EXIT to be processed. What SSTEP_NOIRQ should actually do is to block the delivery of all external, guest visible interrupts. With the fix below applied, single stepping now works again. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5643 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-06Remove unused reg_T2 definitionaurel32
No longer used, remove it. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5641 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-05Add KVM support to QEMUaliguori
This patch adds very basic KVM support. KVM is a kernel module for Linux that allows userspace programs to make use of hardware virtualization support. It current supports x86 hardware virtualization using Intel VT-x or AMD-V. It also supports IA64 VT-i, PPC 440, and S390. This patch only implements the bare minimum support to get a guest booting. It has very little impact the rest of QEMU and attempts to integrate nicely with the rest of QEMU. Even though this implementation is basic, it is significantly faster than TCG. Booting and shutting down a Linux guest: w/TCG: 1:32.36 elapsed 84% CPU w/KVM: 0:31.14 elapsed 59% CPU Right now, KVM is disabled by default and must be explicitly enabled with -enable-kvm. We can enable it by default later when we have had better testing. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5627 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-04Add safety net against potential infinite loopmalc
cpu_interrupt might be called while translating the TB, but before it is linked into a potentially infinite loop and becomes env->current_tb. Currently this can (and does) cause huge problems only when using dyntick clock, with other (periodic) clocks host_alarm_handler will eventually be executed resulting in a call to cpu_interrupt which will reset the recursion of running TB and the damage is "only" latency. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5620 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-26Preliminary BSD user emulator supportblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5544 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07CRIS: Fix brk 8 and add S-flag emulation.edgar_igl
* break 8 sets ERP to the current insn. * First shot at S flag single-stepping. * Make it easier to use the local disasm. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5445 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-15SH4: Privilege check for instructionsaurel32
This patch adds check for all SH4 instructions which are executed only in privileged mode. (Shin-ichiro KAWASAKI) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5224 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-17Support for address maskingblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4882 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-08Fix r4641 (invalid token "=<" in a preprocessor expression)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4859 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-03Convert remaining __builtin_expect to likely/unlikely, by Jan Kiszka.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4840 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-30Spelling fixes, spotted by Stuart Brady.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4809 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-29Add instruction counter.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4799 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-27More efficient target register / TC accesses.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4794 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-09CRIS: Emulate NMIs.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4719 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-07Multithreaded locking fixes.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4692 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-06CRIS: Add the P flag to the tb dependent flags.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4685 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-04reworked SVM interrupt handling logic - fixed vmrun EIP saved value - ↵bellard
reworked cr8 handling - added CPUState.hflags2 git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4662 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-02Restore ARM signal handler compilation on glibc < 2.5 (Blue Swirl).balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4641 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-29Remove unused (for now) reg_REGWPTR (original patch by Glauber Costa)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4617 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-28SVM reworkbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4605 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-27removed unused codebellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4598 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-27CRIS: Re-add the X flag to the tb flags, it allows for better code ↵edgar_igl
generation and is practially always cleared. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4597 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-27Move non-op functions from op_helper.c to helper.c and vice versa.blueswir1
Rearrange interrupt handling to match other targets. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4590 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-19Fix Sparc32 compilation broken by r4484blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4499 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-18Fix Sparc64 host signal handlingblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4484 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-17Improved workaround for the annoying glibc global register mangling bugblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4465 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-15Always process real timers regardless of singlestep mode (Jason Wessel).edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4462 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-14Fix compilation on Sparc host, implement ld and stblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4457 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-13CRIS: Improve TLB management and handle delayslots at page boundaries.edgar_igl
* Dont flush the entire qemu tlb when the $pid changes. Instead we go through the guests TLB and choose entries that need to be flushed. * Add env->dslot and handle delayslots at pageboundaries. * Remove some unused code. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4450 c046a42c-6fe2-441c-8c8c-71466251a162
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-24 10:30:11 +0000