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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
2008-05-12use new helper namebellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4448 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-12the double/triple fault handling was not tested in user mode.bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4435 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-10initial global prologue/epilogue implementationbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4407 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-10Fix compiler warnings in common filesblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4405 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-09Debugger single step without interrupts (Jason Wessel).edgar_igl
This patch allows the qemu backend debugger to single step an instruction without running the hardware interrupts. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4391 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-07CRIS: Remove X flag from tb flags.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4378 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-06Fix signal handler compilation on __arm__.balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4359 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-04Fix crash due to invalid env->current_tb (Adam Lackorzynski, Paul Brook, me)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4317 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-03CRIS: Reduce the number of tb dependent flags.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4305 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-02CRIS updates:edgar_igl
* Support both the I and D MMUs and improve the accuracy of the MMU model. * Handle the automatic user/kernel stack pointer switching when leaving or entering user mode. * Move the CCS evaluation into helper funcs. * Make sure user-mode cannot change flags only writeable in kernel mode. * More conversion of the translator into TCG. * Handle exceptions while in a delayslot. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4299 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-13x86: Introduce CPU_INTERRUPT_NMIaurel32
(Jan Kiszka) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4205 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-12HPPA (PA-RISC) host supportaurel32
(Stuart Brady) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4199 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-11Fix compiler warningsaurel32
(Stefan Weil) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4188 c046a42c-6fe2-441c-8c8c-71466251a162
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