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mips: Add support for VInt and VEIC irq modes
Signed-off-by: Edgar E. Iglesias <edgar@axis.com>
Fix cpu_unlink_tb race
If a signal hit after the env->exit_request check but before cpu_execupdated env->current_tb, cpu_unlink_tb called from the signal handerwill not unlink the current TB. This may leave us stuck in a guest loopif no further unlink is invoked....
Fix cpu_exit for tcp_cpu_exec
If a cpu_exit request is pending, ensure that we leave the CPU loopquickly. For this purpose, keep the global exit_request pending untilwe are about to leave tcg_cpu_exec. Also, immediately break out of theSMP loop if the request is set, do not run till the end of the chain....
Introduce proper compiler barrier
Define barrier() as optimization barrier and replace (potentiallyunreliable) asm("") fences.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>Acked-by: Paolo Bonzini <pbonzini@redhat.com>Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>...
tcg-s390: Compute is_write in cpu_signal_handler.
Signed-off-by: Richard Henderson <rth@twiddle.net>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
make SIG_IPI to tcg vcpu thread reliable
Store tcg loop exit request on a global variable, and transfer it toper-CPUState exit_request after assignment of cpu_single_env.
This makes exit request signal from robust. Drop the timedlock hack.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>...
Enable -d cpu logging by default.
When -d cpu logging was handled by target-foo/translate.c,it was controled by DEBUG_DISAS, which is enabled by default.Use the same condition in cpu_exec.
At the same time, reduce the if-deffery by assuming no flagsupdate is required for the target....
tcg-hppa: Compute is_write in cpu_signal_handler.
linux-user/ia64: workaround ia64 strangenesses
ia64 has some strangenesses that need to be workaround:- it has a __clone2() syscall instead of the using clone() one, with different arguments, and which is not declared in the usual headers.- ucontext.uc_sigmask is declared with type long int, while it is...
Add tb_page_addr_t
The page tracking code in exec.c is used by both userspace and systememulation. Userspace emulation uses it to track virtual pages, andsystem emulation to track ram pages. Introduce a new type to hold thiskind of address.
Signed-off-by: Paul Brook <paul@codesourcery.com>
declare saved_env_reg as volatile
This ensures that the compiler does not move it away fromthe "env = env1;" assignment. Fixes a miscompilationon gcc 4.4, reported by Jay Foad.
Cc: <jay.foad@gmail.com>Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>...
Merge remote branch 'qemu-kvm/uq/master' into staging
kvm: Fix eflags corruption in kvm mode
This should explain a lot of the weird breakages of upstream KVM we'veseen recently (actually we should have seen it much earlier):
Stop translating eflags into TCG format when in kvm mode as we nevertranslate it back and rather sync this broken state into the kernel....
Add FreeBSD/ppc host ucontext definitions.
Submitted by: Andreas Tobler <andreast@fgznet.ch>
Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de>Signed-off-by: malc <av1474@comtv.ru>
get rid of hostregs_helper.h
Since b567b38 (target-arm: remove T0 and T1, 2009-10-16) the only globalregister that is used is AREG0, so the complexity of hostregs_helper.his unused. Use regular assignments and a compiler optimization barrier.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>...
cris: Prepare for CRISv10.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
fix wrong indentation
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
clean up env->current_tb
There are three paths from the innermost while loop of cpu_execto the top of the outermost for loop. Two do not resetenv->current_tb. Fix this.
add assertions about env->current_tb
By virtue of the previous patch env->current_tb will always be NULL atthe top of cpu_exec's outermost for loop, and at the end of the innermostwhile loop.
change while to if
The while loop will be executed exactly 0 or 1 times, depending onenv->exit_request.
remove assertions
avoid unreachable statement after break
kill regs_to_env and env_to_regs
sparc64: interrupt trap handling
cpu_check_irqs- handle SOFTINT register TICK and STICK timer bits- only check interrupt levels greater than PIL value- handle preemption by higher level traps
cpu_exec- handle CPU_INTERRUPT_HARD only if interrupts are enabled...
S/390 CPU fake emulation
Because Qemu currently requires a TCG target to exist and there are quite someuseful helpers here to lay the groundwork for out KVM target, let's create astub TCG emulation target for S390X CPUs.
This is required to make tcg happy. The emulation target itself won't work...
PPC: rename cpu_ppc_reset to cpu_reset for consistency
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
bsd-user: FreeBSD update
basic FreeBSD sysarch(2) handlingfixed syscall errno return
Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de>Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Fix sys-queue.h conflict for good
Problem: Our file sys-queue.h is a copy of the BSD file, but there aresome additions and it's not entirely compatible. Because of that, there havebeen conflicts with system headers on BSD systems. Some hacks have beenintroduced in the commits 15cc9235840a22c289edbe064a9b3c19c5f49896,...
cleanup cpu-exec.c, part 0/N: consolidate handle_cpu_signal
handle_cpu_signal is very nearly copy-paste code for each target, with afew minor variations. This patch sets up appropriate defaults for ageneric handle_cpu_signal and provides overrides for particular targets...
Unbreak large mem support by removing kqemu
kqemu introduces a number of restrictions on the i386 target. The worst is thatit prevents large memory from working in the default build.
Furthermore, kqemu is fundamentally flawed in a number of ways. It relies on...
sparc32 remove an unnecessary cpu irq set
Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
rename DEBUG_EXEC to CONFIG_DEBUG_EXEC
Signed-off-by: Juan Quintela <quintela@redhat.com>Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
change HOST_SOLARIS to CONFIG_SOLARIS{_VERSION}
Update to a hopefully more future proof FSF address
sparc64: trap handling corrections
On Sun, Jul 12, 2009 at 12:09 PM, Blue Swirl<blauwirbel@gmail.com> wrote:
On 7/12/09, Igor Kovalenko <igor.v.kovalenko@gmail.com> wrote: Good trap handling is required to process interrupts. This patch fixes the following:...
On 7/12/09, Igor Kovalenko <igor.v.kovalenko@gmail.com> wrote:
Good trap handling is required to process interrupts. This patch fixes the following:...
QEMU: MCE: Add MCE simulation to qemu/tcg
- MCE features are initialized when VCPU is intialized according to CPUID.- A monitor command "mce" is added to inject a MCE.- A new interrupt mask: CPU_INTERRUPT_MCE is added to inject the MCE.
aliguori: fix build for linux-user...
Handle init/sipi in a main cpu exec loop. (v2)
This should fix compilation problem in case of CONFIG_USER_ONLY.
Currently INIT/SIPI is handled in the context of CPU that sends IPI.This patch changes this to handle them like all other events in a maincpu exec loop. When KVM will gain thread per vcpu capability it will...
microblaze: linux-user support.
Recognize V9 stores and CAS accesses as writes
qemu: per-arch cpu_has_work (Marcelo Tosatti)
Blue Swirl: fix Sparc32 breakage
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7238 c046a42c-6fe2-441c-8c8c-71466251a162
kqemu: merge CONFIG_KQEMU and USE_KQEMU
Basically a recursive ":%s/USE_KQEMU/CONFIG_KQEMU/g".
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7189 c046a42c-6fe2-441c-8c8c-71466251a162
BSD user: add support for OpenBSD/amd64 host
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7066 c046a42c-6fe2-441c-8c8c-71466251a162
BSD user: add support for OpenBSD/i386 host
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7065 c046a42c-6fe2-441c-8c8c-71466251a162
Make i386-softmmu boot on Sparc host
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6971 c046a42c-6fe2-441c-8c8c-71466251a162
Delete some unused macros detected with -Wp,-Wunused-macros use
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6856 c046a42c-6fe2-441c-8c8c-71466251a162
Fix race condition on access to env->interrupt_request
env->interrupt_request is accessed as the bit level from both main codeand signal handler, making a race condition possible even on CISC CPU.This causes freeze of QEMU under high load when running the dyntick...
global s/loglevel & X/qemu_loglevel_mask(X)/ (Eduardo Habkost)
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>...
Convert references to logfile/loglevel to use qemu_log*() macros
This is a large patch that changes all occurrences of logfile/loglevelglobal variables to use the new qemu_log*() macros.
Get rid of user_mode_only
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6305 c046a42c-6fe2-441c-8c8c-71466251a162
Remove all traces of powerpc
According to $GCC/gcc/config/rs6000/rs6000-c.c _ARCH_PPC is theubiquitous define which should be used to test whether gcc targetsPowerPC, 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
Update FSF address in GPL/LGPL boilerplate
The attached patch updates the FSF address in the GPL/LGPL boilerplatein 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>...
Fix remaining compiler warnings for mips targets.
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
When icount is used and a TB is recompiled due to an IO accessshortly after an IRQ has been raised, env>exception_index will still be setto EXCP_IRQ when cpu_io_recompile calls cpu_resume_from_signal.This causes qemu to repeat the IRQ trap, with disasterous consequences....
target-i386: SVM: acknowledge interrupt only after it is taken
SVM specifies that the V_IRQ mask is only to be removed, if theinterrupt that is to be delivered actually is delivered.
As of the SVM rewrite, this mask is always unmasked when the main cpu...
target-ppc: rework exception code
... also remove two warnings.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5989 c046a42c-6fe2-441c-8c8c-71466251a162
Attached patch make cpu-exec.c compile on NetBSD.
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
Use sys-queue.h for break/watchpoint managment (Jan Kiszka)
This switches cpu_break/watchpoint_* to TAILQ wrappers, simplifying thecode and also fixing a use after release issue incpu_break/watchpoint_remove_all.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>...
target-ppc: convert exceptions generation to TCG
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5772 c046a42c-6fe2-441c-8c8c-71466251a162
Add debug exception hook (Jan Kiszka)
This patch allows to hook into the delivery of EXCP_DEBUG so that otheruse beyond guest debugging becomes possible.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>...
Introduce BP_WATCHPOINT_HIT flag (Jan Kiszka)
When one watchpoint is hit, others might have triggered as well. Tosupport users of the watchpoint API which need to detect such cases,the BP_WATCHPOINT_HIT flag is introduced and maintained.
Refactor translation block CPU state handling (Jan Kiszka)
This patch refactors the way the CPU state is handled that is associatedwith a TB. The basic motivation is to move more arch specific code outof generic files. Specifically the long #ifdef clutter in tb_find_fast()...
Convert CPU_PC_FROM_TB to static inline (Jan Kiszka)
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
TCG variable type checking.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5729 c046a42c-6fe2-441c-8c8c-71466251a162
KVM: simplify kvm_cpu_exec hook
We don't need to use cpu_loop_exit() because we never use thecondition 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
Fix interrupt exclusion via SSTEP_NOIRQ
Commit #5620 revealed an issue of the SSTEP_NOIRQ masking that wasapplied on all interrupt sources (including internal ones) when singlestepping through the guest. Due to that commit, we now ended up in aninfinite loop when CPU_INTERRUPT_EXIT was pending on SSTEP resume. That...
Remove unused reg_T2 definition
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
Add KVM support to QEMU
This patch adds very basic KVM support. KVM is a kernel module for Linux thatallows userspace programs to make use of hardware virtualization support. Itcurrent supports x86 hardware virtualization using Intel VT-x or AMD-V. It...
Add safety net against potential infinite loop
cpu_interrupt might be called while translating the TB, but before itis linked into a potentially infinite loop and becomes env->current_tb.
Currently this can (and does) cause huge problems only when using...
Preliminary BSD user emulator support
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5544 c046a42c-6fe2-441c-8c8c-71466251a162
CRIS: Fix brk 8 and add S-flag emulation.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5445 c046a42c-6fe2-441c-8c8c-71466251a162
SH4: Privilege check for instructions
This patch adds check for all SH4 instructions which areexecuted only in privileged mode.
(Shin-ichiro KAWASAKI)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5224 c046a42c-6fe2-441c-8c8c-71466251a162
Support for address masking
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4882 c046a42c-6fe2-441c-8c8c-71466251a162
Fix r4641 (invalid token "=<" in a preprocessor expression)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4859 c046a42c-6fe2-441c-8c8c-71466251a162
Convert remaining __builtin_expect to likely/unlikely, by Jan Kiszka.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4840 c046a42c-6fe2-441c-8c8c-71466251a162
Spelling fixes, spotted by Stuart Brady.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4809 c046a42c-6fe2-441c-8c8c-71466251a162
Add instruction counter.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4799 c046a42c-6fe2-441c-8c8c-71466251a162
More efficient target register / TC accesses.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4794 c046a42c-6fe2-441c-8c8c-71466251a162
CRIS: Emulate NMIs.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4719 c046a42c-6fe2-441c-8c8c-71466251a162
Multithreaded locking fixes.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4692 c046a42c-6fe2-441c-8c8c-71466251a162
CRIS: Add the P flag to the tb dependent flags.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4685 c046a42c-6fe2-441c-8c8c-71466251a162
reworked SVM interrupt handling logic - fixed vmrun EIP saved value - reworked cr8 handling - added CPUState.hflags2
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4662 c046a42c-6fe2-441c-8c8c-71466251a162
Restore ARM signal handler compilation on glibc < 2.5 (Blue Swirl).
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4641 c046a42c-6fe2-441c-8c8c-71466251a162
Remove unused (for now) reg_REGWPTR (original patch by Glauber Costa)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4617 c046a42c-6fe2-441c-8c8c-71466251a162
SVM rework
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4605 c046a42c-6fe2-441c-8c8c-71466251a162
removed unused code
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4598 c046a42c-6fe2-441c-8c8c-71466251a162
CRIS: Re-add the X flag to the tb flags, it allows for better code generation and is practially always cleared.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4597 c046a42c-6fe2-441c-8c8c-71466251a162
Move non-op functions from op_helper.c to helper.c and vice versa.Rearrange interrupt handling to match other targets.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4590 c046a42c-6fe2-441c-8c8c-71466251a162
Fix Sparc32 compilation broken by r4484
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4499 c046a42c-6fe2-441c-8c8c-71466251a162
Fix Sparc64 host signal handling
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4484 c046a42c-6fe2-441c-8c8c-71466251a162
Improved workaround for the annoying glibc global register mangling bug
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4465 c046a42c-6fe2-441c-8c8c-71466251a162
Always process real timers regardless of singlestep mode (Jason Wessel).
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4462 c046a42c-6fe2-441c-8c8c-71466251a162
Fix compilation on Sparc host, implement ld and st
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4457 c046a42c-6fe2-441c-8c8c-71466251a162
use new helper name
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4448 c046a42c-6fe2-441c-8c8c-71466251a162
the double/triple fault handling was not tested in user mode.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4435 c046a42c-6fe2-441c-8c8c-71466251a162
initial global prologue/epilogue implementation
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4407 c046a42c-6fe2-441c-8c8c-71466251a162
Fix compiler warnings in common files
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4405 c046a42c-6fe2-441c-8c8c-71466251a162
Debugger single step without interrupts (Jason Wessel).
This patch allows the qemu backend debugger to single step aninstruction without running the hardware interrupts.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4391 c046a42c-6fe2-441c-8c8c-71466251a162
CRIS: Remove X flag from tb flags.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4378 c046a42c-6fe2-441c-8c8c-71466251a162
Fix signal handler compilation on arm.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4359 c046a42c-6fe2-441c-8c8c-71466251a162