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* cpu: Add crash_occurred flag into CPUStateAndrey Smetanin2015-09-161-0/+1
| | | | | | | | | | | | | | CPUState::crash_occurred field inside CPUState marks that guest crash occurred. This value is added into cpu common migration subsection. Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Andreas Färber <afaerber@suse.de> Message-Id: <1435924905-8926-12-git-send-email-den@openvz.org> [Document the new field. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* cpus: protect work list with work_mutexPaolo Bonzini2015-09-091-0/+1
| | | | | | | | | Protect the list of queued work items with something other than the BQL, as a preparation for running the work items outside it. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* tcg: synchronize cpu->exit_request and cpu->tcg_exit_req accessesPaolo Bonzini2015-09-091-0/+2
| | | | | Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* exec: drop cpu_can_do_io, just read cpu->can_do_ioPaolo Bonzini2015-08-141-1/+1
| | | | | | | | | | | | | | After commit 626cf8f (icount: set can_do_io outside TB execution, 2014-12-08), can_do_io is set to 1 if not executing code. It is no longer necessary to make this assumption in cpu_can_do_io. It is also possible to remove the use_icount test, simply by never setting cpu->can_do_io to 0 unless use_icount is true. With these changes cpu_can_do_io boils down to a read of cpu->can_do_io. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* cpu: Convert cpu_index into a bitmapBharata B Rao2015-07-091-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently CPUState::cpu_index is monotonically increasing and a newly created CPU always gets the next higher index. The next available index is calculated by counting the existing number of CPUs. This is fine as long as we only add CPUs, but there are architectures which are starting to support CPU removal, too. For an architecture like PowerPC which derives its CPU identifier (device tree ID) from cpu_index, the existing logic of generating cpu_index values causes problems. With the currently proposed method of handling vCPU removal by parking the vCPU fd in QEMU (Ref: http://lists.gnu.org/archive/html/qemu-devel/2015-02/msg02604.html), generating cpu_index this way will not work for PowerPC. This patch changes the way cpu_index is handed out by maintaining a bit map of the CPUs that tracks both addition and removal of CPUs. The CPU bitmap allocation logic is part of cpu_exec_init(), which is called by instance_init routines of various CPU targets. Newly added cpu_exec_exit() API handles the deallocation part and this routine is called from generic CPU instance_finalize. Note: This new CPU enumeration is for !CONFIG_USER_ONLY only. CONFIG_USER_ONLY continues to have the old enumeration logic. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> [AF: max_cpus -> MAX_CPUMASK_BITS] Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Initialize breakpoint/watchpoint lists in cpu_common_initfn()Eduardo Habkost2015-07-091-0/+2
| | | | | | | | One small step in the simplification of cpu_exec_init(). Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* qom: Fix warning from SparseStefan Weil2015-03-191-1/+1
| | | | | | | | | | Sparse report: qom/cpu.c:99:5: warning: returning void-valued expression Cc: Andreas Färber <afaerber@suse.de> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* error: Use error_report_err() where appropriateMarkus Armbruster2015-02-181-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Coccinelle semantic patch: @@ expression E; @@ - error_report("%s", error_get_pretty(E)); - error_free(E); + error_report_err(E); @@ expression E, S; @@ - error_report("%s", error_get_pretty(E)); + error_report_err(E); ( exit(S); | abort(); ) Trivial manual touch-ups in block/sheepdog.c. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* cpu: initialize cpu->exception_index on resetPaolo Bonzini2014-12-201-0/+1
| | | | | | | | | | | | This unbreaks linux-user (broken by e511b4d, cpu-exec: reset exception_index correctly, 2014-11-26). Reported-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com> Tested-by: Eduardo Habkost <ehabkost@redhat.com> Message-id: 1418989994-17244-2-git-send-email-pbonzini@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* qom/cpu: remove the unused CPU hot-plug notifierGu Zheng2014-11-021-10/+0
| | | | | | | | | | Remove the unused CPU hot-plug notifier. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
* qom: Add cpu_exec_interrupt hookRichard Henderson2014-09-251-0/+6
| | | | | | | | | | | Continuing the removal of ifdefs from cpu_exec. Cc: Andreas Färber <afaerber@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1410626734-3804-7-git-send-email-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* qom: Add cpu_exec_enter and cpu_exec_exit hooksRichard Henderson2014-09-251-2/+4
| | | | | | | | | | In preparation for removing a bunch of ifdefs from cpu_exec. Cc: Andreas Färber <afaerber@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1410626734-3804-2-git-send-email-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* cpu-exec: Make debug_excp_handler a QOM CPU methodPeter Maydell2014-09-121-0/+5
| | | | | | | Make the debug_excp_handler target specific hook into a QOM CPU method. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* cpu: introduce CPUClass::virtio_is_big_endian()Greg Kurz2014-06-291-0/+6
| | | | | | | | | | | | | | | If we want to support targets that can change endianness (modern PPC and ARM for the moment), we need to add a per-CPU class method to be called from the virtio code. The virtio_ prefix in the name is a hint for people to avoid misusage (aka. anywhere but from the virtio code). The default behaviour is to return the compile-time default target endianness. Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* cpu: Move tb_jmp_cache field from CPU_COMMON to CPUStateAndreas Färber2014-03-131-0/+1
| | | | | | Clear it on reset. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Move icount_decr field from CPU_COMMON to CPUStateAndreas Färber2014-03-131-0/+1
| | | | Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Move icount_extra field from CPU_COMMON to CPUStateAndreas Färber2014-03-131-0/+1
| | | | | | Reset it. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Move can_do_io field from CPU_COMMON to CPUStateAndreas Färber2014-03-131-0/+1
| | | | | | Rename can_do_io() to cpu_can_do_io() and change argument to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Move mem_io_{pc,vaddr} fields from CPU_COMMON to CPUStateAndreas Färber2014-03-131-0/+2
| | | | | | Reset them. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Factor out cpu_generic_init()Andreas Färber2014-03-131-0/+41
| | | | | | | All targets using it gain the ability to set -cpu name,key=value,... options via the default TYPE_CPU CPUClass::parse_features() implementation. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Implement CPUClass::parse_features() for the rest of CPUsAndreas Färber2014-03-131-1/+30
| | | | | | | | CPUs who do not provide their own implementation of feature parsing will treat each option as a QOM property and set it to the supplied value. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Turn cpu_has_work() into a CPUClass hookAndreas Färber2014-03-131-0/+6
| | | | | | | | | Default to false. Tidy variable naming and inline cast uses while at it. Tested-by: Jia Liu <proljc@gmail.com> (or32) Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Don't clear cpu->exit_request on resetEdgar E. Iglesias2014-03-131-1/+0
| | | | | | | | | | | | cpu->exit_request is part of the execution environment and should not be cleared when a CPU resets. Otherwise, we might deadlock QEMU if a CPU resets while there is I/O going on. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Document why cannot_instantiate_with_device_add_yetMarkus Armbruster2013-12-231-1/+5
| | | | | | Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
* qdev: Replace no_user by cannot_instantiate_with_device_add_yetMarkus Armbruster2013-12-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In an ideal world, machines can be built by wiring devices together with configuration, not code. Unfortunately, that's not the world we live in right now. We still have quite a few devices that need to be wired up by code. If you try to device_add such a device, it'll fail in sometimes mysterious ways. If you're lucky, you get an unmysterious immediate crash. To protect users from such badness, DeviceClass member no_user used to make device models unavailable with -device / device_add, but that regressed in commit 18b6dad. The device model is still omitted from help, but is available anyway. Attempts to fix the regression have been rejected with the argument that the purpose of no_user isn't clear, and it's prone to misuse. This commit clarifies no_user's purpose. Anthony suggested to rename it cannot_instantiate_with_device_add_yet_due_to_internal_bugs, which I shorten somewhat to keep checkpatch happy. While there, make it bool. Every use of cannot_instantiate_with_device_add_yet gets a FIXME comment asking for rationale. The next few commits will clean them all up, either by providing a rationale, or by getting rid of the use. With that done, the regression fix is hopefully acceptable. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Move cpu state syncs up into cpu_dump_state()James Hogan2013-09-201-0/+1
| | | | | | | | | | | | | | | | | | | | | The x86 and ppc targets call cpu_synchronize_state() from their *_cpu_dump_state() callbacks to ensure that up to date state is dumped when KVM is enabled (for example when a KVM internal error occurs). Move this call up into the generic cpu_dump_state() function so that other KVM targets (namely MIPS) can take advantage of it. This requires kvm_cpu_synchronize_state() and cpu_synchronize_state() to be moved out of the #ifdef NEED_CPU_H in <sysemu/kvm.h> so that they're accessible to qom/cpu.c. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Alexander Graf <agraf@suse.de> Cc: Gleb Natapov <gleb@redhat.com> Cc: qemu-ppc@nongnu.org Cc: kvm@vger.kernel.org Signed-off-by: Gleb Natapov <gleb@redhat.com>
* cpu: Replace qemu_for_each_cpu()Andreas Färber2013-09-031-21/+9
| | | | | | | | | | | | | | 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>
* gdbstub: Fix gdb_register_coprocessor() register countingAndreas Färber2013-08-161-1/+1
| | | | | | | | | | | | | | | | | | 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>
* cpu: Partially revert "cpu: Change qemu_init_vcpu() argument to CPUState"Andreas Färber2013-07-291-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit c643bed99 moved qemu_init_vcpu() calls to common CPUState code. This causes x86 cpu-add to fail with "KVM: setting VAPIC address failed". The reason for the failure is that CPUClass::kvm_fd is not yet initialized in the following call graph: ->x86_cpu_realizefn ->x86_cpu_apic_realize ->qdev_init ->device_set_realized ->device_reset (hotplugged == 1) ->apic_reset_common ->vapic_base_update ->kvm_apic_vapic_base_update This causes attempted KVM vCPU ioctls to fail. By contrast, in the non-hotplug case the APIC is reset much later, when the vCPU is already initialized. As a quick and safe solution, move the qemu_init_vcpu() call back into the targets' realize functions. Reported-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Acked-by: Igor Mammedov <imammedo@redhat.com> (for i386) Tested-by: Jia Liu <proljc@gmail.com> (for openrisc) Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Introduce CPUClass::gdb_{read,write}_register()Andreas Färber2013-07-271-0/+13
| | | | | | | | 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>
* cpu: Introduce CPUState::gdb_num_regs and CPUClass::gdb_num_core_regsAndreas Färber2013-07-261-0/+9
| | | | | | | | | | | | | 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>
* cpu: Move reset logging to CPUStateAndreas Färber2013-07-091-0/+8
| | | | | | | | | | | 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>
* cpu: Change qemu_init_vcpu() argument to CPUStateAndreas Färber2013-06-281-0/+2
| | | | | | | | 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>
* cpu: Turn cpu_dump_{state,statistics}() into CPUState hooksAndreas Färber2013-06-281-1/+21
| | | | | | | | | 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>
* cpu: Change cpu_exit() argument to CPUStateAndreas Färber2013-06-281-0/+6
| | | | | | | | 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>
* cpu: Change default for CPUClass::get_paging_enabled()Andreas Färber2013-06-111-1/+1
| | | | | | | | | | | | | qemu_get_guest_memory_mapping() uses cpu_paging_enabled() to determine whether to use cpu_get_memory_mapping() to return mappings or whether to fall back to a simple identity map. Since by default CPUClass::get_memory_mapping() is not implemented, change the default to false to use the identity map by default. Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Turn cpu_get_memory_mapping() into a CPUState hookAndreas Färber2013-06-111-0/+16
| | | | | | | | | 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>
* cpu: Turn cpu_paging_enabled() into a CPUState hookAndreas Färber2013-06-111-0/+13
| | | | | | | | 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>
* cpu: Move cpu_write_elfXX_note() functions to CPUStateJens Freimann2013-05-011-0/+63
| | | | | | | | | 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>
* cpu: Add helper cpu_exists(), to check if CPU with specified id existsIgor Mammedov2013-05-011-0/+26
| | | | | Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Introduce get_arch_id() method and override it for X86CPUIgor Mammedov2013-05-011-0/+6
| | | | | | | | | | | | | | 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>
* cpu: Introduce CPU hot-plug notifierIgor Mammedov2013-05-011-0/+12
| | | | | | | Hot-add CPU event will be distributed to acpi_piix4 and rtc_cmos. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Resume CPU from DeviceClass::realize() if hot-pluggedIgor Mammedov2013-05-011-0/+1
| | | | | Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Call cpu_synchronize_post_init() from DeviceClass::realize()Igor Mammedov2013-05-011-0/+6
| | | | | | | | If hotplugged, synchronize CPU state to KVM. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* exec: Pass CPUState to cpu_reset_interrupt()Andreas Färber2013-03-121-0/+5
| | | | | | | | | | | | 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>
* cpu: Move halted and interrupt_request fields to CPUStateAndreas Färber2013-03-121-0/+2
| | | | | | | | | | 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>
* cpu: Move current_tb field to CPUStateAndreas Färber2013-02-161-0/+1
| | | | | | | | | | 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>
* cpu: Move exit_request field to CPUStateAndreas Färber2013-02-161-0/+1
| | | | | | Since it was located before breakpoints field, it needs to be reset. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Prepare QOM realizefnAndreas Färber2013-02-161-0/+5
| | | | | | | Overwrite the default implementation with a no-op, no longer attempting to call DeviceClass::init. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Add model resolution support to CPUClassAndreas Färber2013-01-271-0/+13
| | | | | | | | | 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>
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