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2013-08-30qom: Assert instance size in object_initialize_with_type()Andreas Färber1-1/+2
This catches objects initializing beyond allocated memory, e.g., when subtypes get extended with instance state of their own. Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30qom: Pass available size to object_initialize()Andreas Färber1-1/+2
To be passed on to object_initialize_with_type(). Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> (virtio-ccw) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30qom: Fix object_initialize_with_type() argument name in documentationAndreas Färber1-1/+1
@obj -> @data. Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30object: Fix typo in qom/object.hPeter Chubb1-1/+1
There's been a cut-and-paste error, it looks like, in the documentation in qom/object.h. Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-16qom: Introduce instance_post_init hookEduardo Habkost1-0/+3
This will allow classes to specify a function to be called after all instance_init functions were called. This will be used by DeviceState to call qdev_prop_set_globals() at the right moment. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-16gdbstub: Fix gdb_register_coprocessor() register countingAndreas Färber1-0/+2
Commit a0e372f0c49ac01faeaeb73a6e8f50e8ac615f34 reorganized the register counting for GDB. While it seems correct not to let the total number of registers skyrocket in an SMP scenario through a static variable, the distinction between total register count and 'g' packet register count (last_reg vs. num_g_regs) got lost among the way. Fix this by introducing CPUState::gdb_num_g_regs and using that in gdb_handle_packet(). Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: qemu-stable@nongnu.org (stable-1.6) Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Tested-by: Max Filippov <jcmvbkbc@gmail.com> Tested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-27cpu: Introduce CPUClass::gdb_core_xml_file for GDB_CORE_XMLAndreas Färber1-0/+2
Replace the GDB_CORE_XML define in gdbstub.c with a CPUClass field. Use first_cpu for qSupported and qXfer:features:read: for now. Add a stub for xml_builtin. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-27cpu: Introduce CPUClass::gdb_{read,write}_register()Andreas Färber1-0/+4
Completes migration of target-specific code to new target-*/gdbstub.c. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-26cpu: Introduce CPUState::gdb_num_regs and CPUClass::gdb_num_core_regsAndreas Färber1-1/+6
CPUState::gdb_num_regs replaces num_g_regs. CPUClass::gdb_num_core_regs replaces NUM_CORE_REGS. Allows building gdb_register_coprocessor() for xtensa, too. As a side effect this should fix coprocessor register numbering for SMP. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Move gdb_regs field from CPU_COMMON to CPUStateAndreas Färber1-0/+2
Prepares for changing gdb_register_coprocessor() argument to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Introduce CPUClass::memory_rw_debug() for target_memory_rw_debug()Andreas Färber1-0/+3
Make inline target_memory_rw_debug() always available and change its argument to CPUState. Let it check if CPUClass::memory_rw_debug provides a specialized callback and fall back to cpu_memory_rw_debug() otherwise. The only overriding implementation is for 32-bit sparc. This prepares for changing GDBState::g_cpu to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Turn cpu_get_phys_page_debug() into a CPUClass hookAndreas Färber1-53/+21
Change breakpoint_invalidate() argument to CPUState alongside. Since all targets now assign a softmmu-only field, we can drop helpers cpu_class_set_{do_unassigned_access,vmsd}() and device_class_set_vmsd(). Prepares for changing cpu_memory_rw_debug() argument to CPUState. Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Change cpu_single_step() argument to CPUStateAndreas Färber1-0/+13
Use CPUState::env_ptr for now. Needed for GdbState::c_cpu. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Move singlestep_enabled field from CPU_COMMON to CPUStateAndreas Färber1-0/+2
Prepares for changing cpu_single_step() argument to CPUState. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Introduce CPUClass::synchronize_from_tb() for cpu_pc_from_tb()Andreas Färber1-0/+5
Where no extra implementation is needed, fall back to CPUClass::set_pc(). Acked-by: Michael Walle <michael@walle.cc> (for lm32) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Introduce CPUClass::set_pc() for gdb_set_cpu_pc()Andreas Färber1-0/+2
This moves setting the Program Counter from gdbstub into target code. Use vaddr type as upper-bound replacement for target_ulong. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Introduce vaddr typeAndreas Färber1-0/+12
vaddr is to target_ulong what uintmax_t is to unsigned int. Its purpose is to allow turning per-target functions with target_ulong arguments into CPUClass hooks. Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-12Introduce async_run_on_cpu()Chegu Vinod1-0/+10
Introduce an asynchronous version of run_on_cpu() i.e. the caller doesn't have to block till the call back routine finishes execution on the target vcpu. Signed-off-by: Chegu Vinod <chegu_vinod@hp.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-09cpu: Move reset logging to CPUStateAndreas Färber1-0/+2
x86 was using additional CPU_DUMP_* flags, so make that configurable in CPUClass::reset_dump_flags. This adds reset logging for alpha, unicore32 and xtensa. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09cpu: Make first_cpu and next_cpu CPUStateAndreas Färber1-0/+4
Move next_cpu from CPU_COMMON to CPUState. Move first_cpu variable to qom/cpu.h. gdbstub needs to use CPUState::env_ptr for now. cpu_copy() no longer needs to save and restore cpu_next. Acked-by: Paolo Bonzini <pbonzini@redhat.com> [AF: Rebased, simplified cpu_copy()] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09cpu: Replace cpu_single_env with CPUState current_cpuAndreas Färber1-0/+4
Move it to qom/cpu.h. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28cpu: Turn cpu_unassigned_access() into a CPUState hookAndreas Färber1-0/+33
Use it for all targets, but be careful not to pass invalid CPUState. cpu_single_env can be NULL, e.g. on Xen. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28cpu: Change qemu_init_vcpu() argument to CPUStateAndreas Färber1-0/+8
This allows to move the call into CPUState's realizefn. Therefore move the stub into libqemustub.a. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28cpu: Turn cpu_dump_{state,statistics}() into CPUState hooksAndreas Färber1-0/+42
Make cpustats monitor command available unconditionally. Prepares for changing kvm_handle_internal_error() and kvm_cpu_exec() arguments to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28cpu: Change cpu_exit() argument to CPUStateAndreas Färber1-0/+8
It no longer depends on CPUArchState, so move it to qom/cpu.c. Prepares for changing GDBState::c_cpu to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28cpu: Introduce VMSTATE_CPU() macro for CPUStateAndreas Färber1-0/+14
To be used to embed common CPU state into CPU subclasses. Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28cpu: Introduce device_class_set_vmsd() helperAndreas Färber1-0/+21
It's the equivalent to cpu_class_set_vmsd(), to assign DeviceClass::vmsd. It wasn't needed before since only static, unmigratable VMStateDescriptions were assigned so far. Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28cpu: Fix cpu_class_set_vmsd() documentationAndreas Färber1-1/+1
It's CPUClass::vmsd, not CPUState::vmsd. Reviewed-by: liguang <lig.fnst@cn.fujitsu.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-11cpu: Turn cpu_get_memory_mapping() into a CPUState hookAndreas Färber1-0/+13
Change error reporting from return value to Error argument. Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com> [AF: Fixed cpu_get_memory_mapping() documentation] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-11cpu: Turn cpu_paging_enabled() into a CPUState hookAndreas Färber1-0/+10
Relocate assignment of x86 get_arch_id to have all hooks in one place. Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-05-13qom: aggressively optimize qom castingAnthony Liguori1-0/+4
This patch adds a small typename cache to ObjectClass. This allows caching positive casts within each ObjectClass. Benchmarking a PPC workload provided by Aurelien, this patch eliminates every single g_hash_table_lookup() happening during the benchmark (which was about 2 million per-second). With this patch applied, I get exactly the same performance (within the margin of error) as with --disable-qom-cast-debug. N.B. it's safe to cache typenames only from the _assert() macros because they are always called with string literals. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-13qom: allow turning cast debugging offPaolo Bonzini1-5/+6
Cast debugging can have a substantial cost (20% or more). Instead of adding special-cased "fast casts" in the hot paths, we can just disable it in releases. The tracing facilities we just added make it easier to analyze those problems that cast debugging would reveal. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1368188203-3407-7-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-13qom: pass file/line/function to asserting castsPaolo Bonzini1-5/+11
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1368188203-3407-5-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-13qom: improve documentation of cast functionsPaolo Bonzini1-2/+21
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1368188203-3407-2-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-01cpu: Move cpu_write_elfXX_note() functions to CPUStateJens Freimann1-0/+49
Convert cpu_write_elfXX_note() functions to CPUClass methods and pass CPUState as argument. Update target-i386 accordingly. Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> [AF: Retain stubs as CPUClass' default method implementation; style changes] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-05-01cpu: Add helper cpu_exists(), to check if CPU with specified id existsIgor Mammedov1-0/+10
Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-05-01cpu: Add qemu_for_each_cpu()Michael S. Tsirkin1-0/+9
Wrapper to avoid open-coded loops and to make CPUState iteration independent of CPUArchState. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-05-01cpu: Introduce get_arch_id() method and override it for X86CPUIgor Mammedov1-0/+2
get_arch_id() adds possibility for generic code to get a guest-visible CPU ID without accessing CPUArchState. If derived classes don't override it, it will return cpu_index. Override it on target-i386 in X86CPU to return the APIC ID. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: liguang <lig.fnst@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-05-01cpu: Introduce cpu_resume(), for single CPUIgor Mammedov1-0/+7
Also add a stub for it, to make possible to use it in qom/cpu.c, which is shared with user emulators. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-22Fix typos and misspellingsPeter Maydell1-1/+1
Fix various typos and misspellings. The bulk of these were found with codespell. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-12cpu: Replace do_interrupt() by CPUClass::do_interrupt methodAndreas Färber1-0/+2
This removes a global per-target function and thus takes us one step closer to compiling multiple targets into one executable. It will also allow to override the interrupt handling for certain CPU families. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12cpu: Pass CPUState to cpu_interrupt()Andreas Färber1-0/+24
Move it to qom/cpu.h to avoid issues with include order. Change pc_acpi_smi_interrupt() opaque to X86CPU. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12exec: Pass CPUState to cpu_reset_interrupt()Andreas Färber1-0/+9
Move it to qom/cpu.c to avoid build failures depending on include order of cpu-qom.h and exec/cpu-all.h. Change opaques of various ..._irq_handler() functions to the appropriate CPU type to facilitate using cpu_reset_interrupt(). Fix Coding Style issues while at it (missing braces, indentation). Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12cpu: Move halted and interrupt_request fields to CPUStateAndreas Färber1-0/+4
Both fields are used in VMState, thus need to be moved together. Explicitly zero them on reset since they were located before breakpoints. Pass PowerPCCPU to kvmppc_handle_halt(). Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12cpu: Introduce cpu_class_set_vmsd()Andreas Färber1-0/+21
This setter avoids redefining each VMStateDescription value to vmstate_dummy by not referencing the value for CONFIG_USER_ONLY. Suggested-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12cpu: Register VMStateDescription through CPUStateAndreas Färber1-0/+3
In comparison to DeviceClass::vmsd, CPU VMState is split in two, "cpu_common" and "cpu", and uses cpu_index as instance_id instead of -1. Therefore add a CPU-specific CPUClass::vmsd field. Unlike the legacy CPUArchState registration, rather register CPUState. Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
2013-03-03Handle CPU interrupts by inline checking of a flagPeter Maydell1-0/+3
Fix some of the nasty TCG race conditions and crashes by implementing cpu_exit() as setting a flag which is checked at the start of each TB. This avoids crashes if a thread or signal handler calls cpu_exit() while the execution thread is itself modifying the TB graph (which may happen in system emulation mode as well as in linux-user mode with a multithreaded guest binary). This fixes the crashes seen in LP:668799; however there are another class of crashes described in LP:1098729 which stem from the fact that in linux-user with a multithreaded guest all threads will use and modify the same global TCG date structures (including the generated code buffer) without any kind of locking. This means that multithreaded guest binaries are still in the "unsupported" category. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-02-16cpu: Add CPUArchState pointer to CPUStateAndreas Färber1-0/+2
The target-specific ENV_GET_CPU() macros have allowed us to navigate from CPUArchState to CPUState. The reverse direction was not supported. Avoid introducing CPU_GET_ENV() macros by initializing an untyped pointer that is initialized in derived instance_init functions. The field may not be called "env" due to it being poisoned. Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16cpu: Move current_tb field to CPUStateAndreas Färber1-0/+3
Explictly NULL it on CPU reset since it was located before breakpoints. Change vapic_report_tpr_access() argument to CPUState. This also resolves the use of void* for cpu.h independence. Change vAPIC patch_instruction() argument to X86CPU. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16cpu: Move exit_request field to CPUStateAndreas Färber1-0/+2
Since it was located before breakpoints field, it needs to be reset. Signed-off-by: Andreas Färber <afaerber@suse.de>
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