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path: root/include/qom/cpu.h
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2013-09-03cpu: Replace qemu_for_each_cpu()Andreas Färber
It was introduced to loop over CPUs from target-independent code, but since commit 182735efaf956ccab50b6d74a4fed163e0f35660 target-independent CPUState is used. A loop can be considered more efficient than function calls in a loop, and CPU_FOREACH() hides implementation details just as well, so use that instead. Suggested-by: Markus Armbruster <armbru@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-09-03cpu: Use QTAILQ for CPU listAndreas Färber
Introduce CPU_FOREACH(), CPU_FOREACH_SAFE() and CPU_NEXT() shorthand macros. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-16gdbstub: Fix gdb_register_coprocessor() register countingAndreas Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Vinod
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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>
2013-05-01cpu: Move cpu_write_elfXX_note() functions to CPUStateJens Freimann
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 Mammedov
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. Tsirkin
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 Mammedov
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 Mammedov
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>
2013-03-12cpu: Replace do_interrupt() by CPUClass::do_interrupt methodAndreas Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Färber
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 Maydell
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 Färber
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 Färber
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 Färber
Since it was located before breakpoints field, it needs to be reset. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16cpu: Move running field to CPUStateAndreas Färber
Pass CPUState to cpu_exec_{start,end}() functions. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-16cpu: Move host_tid field to CPUStateAndreas Färber
Change gdbstub's cpu_index() argument to CPUState now that CPUArchState is no longer used. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-28cpu: Unconditionalize CPUState fieldsAndreas Färber
Commits fc8c5b8c41ee5ba69d7a2be63b02a08c7b0b155b (Makefile.user: Define CONFIG_USER_ONLY for libuser/) and dd83b06ae61cfa2dc4381ab49f365bd0995fc930 (qom: Introduce CPU class) specifically prepared the qom/cpu.c file to be compiled differently for softmmu and *-user. This broke as part of build system refactorings while CPU patches were in flight, adding conditional fields kvm_fd (8737c51c0444f832c4e97d7eb7540eae457e08e4) and kvm_vcpu_dirty (20d695a9254c1b086a456d3b79a3c311236643ba) for softmmu. linux-user and bsd-user would therefore get a CPUState type with instance_size ~8 bytes longer than expected. Fix this by unconditionally having the fields in CPUState. In practice, target-specific CPU types' instance_size would compensate this, and upstream qom/cpu.c does not yet touch any affected field. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2013-01-27cpu: Add model resolution support to CPUClassAndreas Färber
Introduce CPUClass::class_by_name and add a default implementation. Hook up the alpha and ppc implementations. Introduce a wrapper function cpu_class_by_name(). Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15exec: Return CPUState from qemu_get_cpu()Andreas Färber
Move the declaration to qemu/cpu.h and add documentation. The implementation still depends on CPUArchState for CPU iteration. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15cpu: Move cpu_index field to CPUStateAndreas Färber
Note that target-alpha accesses this field from TCG, now using a negative offset. Therefore the field is placed last in CPUState. Pass PowerPCCPU to [kvm]ppc_fixup_cpu() to facilitate this change. Move common parts of mips cpu_state_reset() to mips_cpu_reset(). Acked-by: Richard Henderson <rth@twiddle.net> (for alpha) [AF: Rebased onto ppc CPU subclasses and openpic changes] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15cpu: Move numa_node field to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15cpu: Move nr_{cores,threads} fields to CPUStateAndreas Färber
To facilitate the field movements, pass MIPSCPU to malta_mips_config(); avoid that for mips_cpu_map_tc() since callers only access MIPS Thread Contexts, inside TCG helpers. Signed-off-by: Andreas Färber <afaerber@suse.de>