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* s390: Clean up includesPeter Maydell2019-11-291-0/+1
| | | | | | | | | | | Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Message-id: 1453832250-766-8-git-send-email-peter.maydell@linaro.org
* gdb: provide the name of the architecture in the target.xmlDavid Hildenbrand2019-11-291-0/+6
| | | | | | | | | | | | | | | | | | | | | | | This patch provides the name of the architecture in the target.xml if available. This allows the remote gdb to detect the target architecture on its own - so there is no need to specify it manually (e.g. if gdb is started without a binary) using "set arch *arch_name*". The name of the architecture is provided by a callback that can be implemented by all architectures. The arm implementation has special handling for iwmmxt and returns arm otherwise. This can be extended if necessary. Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> [rework to use a callback] Message-Id: <1449144881-130935-1-git-send-email-borntraeger@de.ibm.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* dump: qemunotes aren't commonly neededAndrew Jones2019-11-291-1/+0
| | | | | | | | | | | | | Only one of three architectures implementing qmp-dump-guest-memory write qemu notes. And, another architecture (arm/aarch64) is coming, which won't use them either. Make the common implementation truly common. (No functional change.) Signed-off-by: Andrew Jones <drjones@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1452542185-10914-3-git-send-email-drjones@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* disas: QOMify s390x specific disas setupPeter Crosthwaite2015-10-221-0/+8
| | | | | | | | | | Move the target_disas() s390 specifics to the CPUClass::disas_set_info() hook and delete the #ifdef specific code in disas.c. Cc: Alexander Graf <agraf@suse.de> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
* qdev: Protect device-list-properties against broken devicesMarkus Armbruster2015-10-091-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several devices don't survive object_unref(object_new(T)): they crash or hang during cleanup, or they leave dangling pointers behind. This breaks at least device-list-properties, because qmp_device_list_properties() needs to create a device to find its properties. Broken in commit f4eb32b "qmp: show QOM properties in device-list-properties", v2.1. Example reproducer: $ qemu-system-aarch64 -nodefaults -display none -machine none -S -qmp stdio {"QMP": {"version": {"qemu": {"micro": 50, "minor": 4, "major": 2}, "package": ""}, "capabilities": []}} { "execute": "qmp_capabilities" } {"return": {}} { "execute": "device-list-properties", "arguments": { "typename": "pxa2xx-pcmcia" } } qemu-system-aarch64: /home/armbru/work/qemu/memory.c:1307: memory_region_finalize: Assertion `((&mr->subregions)->tqh_first == ((void *)0))' failed. Aborted (core dumped) [Exit 134 (SIGABRT)] Unfortunately, I can't fix the problems in these devices right now. Instead, add DeviceClass member cannot_destroy_with_object_finalize_yet to mark them: * Hang during cleanup (didn't debug, so I can't say why): "realview_pci", "versatile_pci". * Dangling pointer in cpus: most CPUs, plus "allwinner-a10", "digic", "fsl,imx25", "fsl,imx31", "xlnx,zynqmp", because they create such CPUs * Assert kvm_enabled(): "host-x86_64-cpu", host-i386-cpu", "host-powerpc64-cpu", "host-embedded-powerpc-cpu", "host-powerpc-cpu" (the powerpc ones can't currently reach the assertion, because the CPUs are only registered when KVM is enabled, but the assertion is arguably in the wrong place all the same) Make qmp_device_list_properties() fail cleanly when the device is so marked. This improves device-list-properties from "crashes, hangs or leaves dangling pointers behind" to "fails". Not a complete fix, just a better-than-nothing work-around. In the above reproducer, device-list-properties now fails with "Can't list properties of device 'pxa2xx-pcmcia'". This also protects -device FOO,help, which uses the same machinery since commit ef52358 "qdev-monitor: include QOM properties in -device FOO, help output", v2.2. Example reproducer: $ qemu-system-aarch64 -machine none -device pxa2xx-pcmcia,help Before: qemu-system-aarch64: .../memory.c:1307: memory_region_finalize: Assertion `((&mr->subregions)->tqh_first == ((void *)0))' failed. After: Can't list properties of device 'pxa2xx-pcmcia' Cc: "Andreas Färber" <afaerber@suse.de> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Anthony Green <green@moxielogic.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Jia Liu <proljc@gmail.com> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Walle <michael@walle.cc> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Richard Henderson <rth@twiddle.net> Cc: qemu-ppc@nongnu.org Cc: qemu-stable@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <1443689999-12182-10-git-send-email-armbru@redhat.com>
* cpu: Change cpu_exec_init() arg to cpu, not envPeter Crosthwaite2015-07-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | The callers (most of them in target-foo/cpu.c) to this function all have the cpu pointer handy. Just pass it to avoid an ENV_GET_CPU() from core code (in exec.c). Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Michael Walle <michael@walle.cc> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Anthony Green <green@moxielogic.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Add Error argument to cpu_exec_init()Bharata B Rao2015-07-091-1/+1
| | | | | | | | | | | | | | | | | | | | Add an Error argument to cpu_exec_init() to let users collect the error. This is in preparation to change the CPU enumeration logic in cpu_exec_init(). With the new enumeration logic, cpu_exec_init() can fail if cpu_index values corresponding to max_cpus have already been handed out. Since all current callers of cpu_exec_init() are from instance_init, use error_abort Error argument to abort in case of an error. 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> Signed-off-by: Andreas Färber <afaerber@suse.de>
* target-s390x: PER: add Breaking-Event-Address registerAurelien Jarno2015-06-171-0/+6
| | | | | | | | | | | | | This patch adds support for PER Breaking-Event-Address register. Like real hardware, it save the current PSW address when the PSW address is changed by an instruction. We have to take care of optimizations QEMU does, a branch to the next instruction is still a branch. This register is copied to low core memory when a program exception happens. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: PER storage-alteration event supportAurelien Jarno2015-06-171-0/+1
| | | | | | | | | | | | For the PER storage-alteration event we can use the QEMU watchpoint infrastructure. When PER is enabled or PER control register changed we enable the corresponding watchpoints. When a watchpoint arises we can save the event. Unfortunately the current code does not provide the address space used to trigger the watchpoint. For now we assume it comes from the default ASC. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: fix s390_cpu_initial_resetAurelien Jarno2015-06-171-0/+1
| | | | | | | | | | The s390_cpu_initial_reset function zeroes a big part of the CPU state structure, including CPU_COMMON, and thus the QEMU TLB structure. As they should not be initialized with zeroes only, we need to call the tlb_flush to initialize it correctly. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: initialize I/O interrupt queueAurelien Jarno2015-06-171-0/+8
| | | | | | | | env->io_index[] should be set to -1 during CPU reset to mark the I/O interrupt queue as empty. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: correctly initialize ext interrupt queueAurelien Jarno2015-06-171-1/+2
| | | | | | | | | | | env->ext_index should be initialized to -1 to mark the external interrupt queue as emtpy. This should not be done in s390_cpu_initfn as all the interrupt fields are later reset to 0 by the memset in s390_cpu_initial_reset or s390_cpu_full_reset. Move the initialization there. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* target-s390x: detect tininess before rounding for FP operationsAurelien Jarno2015-06-051-0/+8
| | | | | | | | The s390x floating point unit detects tininess before rounding, so set the softfloat fp_status up appropriately. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
* s390x/kvm: migrate vcpu interrupt stateJens Freimann2015-05-081-0/+1
| | | | | | | | | | This patch adds support to migrate vcpu interrupts. We use ioctl KVM_S390_GET_IRQ_STATE and _SET_IRQ_STATE to get/set the complete interrupt state for a vcpu. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x/kvm: implement handling of new SIGP ordersDavid Hildenbrand2015-03-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds handling code for the following SIGP orders: - SIGP SET ARCHITECTURE - SIGP SET PREFIX - SIGP STOP - SIGP STOP AND STORE STATUS - SIGP STORE STATUS AT ADDRESS SIGP STOP (AND STORE STATUS) are the only orders that can stay pending forever (and may only be interrupted by resets), so special care has to be taken about them. Their status also has to be tracked within QEMU. This patch takes care of migrating this status (e.g. if migration happens during a SIGP STOP). Due to the BQL, only one VCPU is currently able to execute SIGP handlers at a time. According to the PoP, BUSY should be returned if another SIGP order is currently being executed on a VCPU. This can only be implemented when the BQL does not protect all handlers. For now, all SIGP orders on all VCPUs will be serialized, which will be okay for the first shot. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Message-Id: <1424783731-43426-7-git-send-email-jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* s390x/migration: migrate CPU stateThomas Huth2014-10-101-6/+1
| | | | | | | | | | | | | | | | | This patch provides the cpu save information for dumps and later life migration and enables migration of the CPU state. The code is based on earlier work from Christian Borntraeger and Jason Herne. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> [provide cpu_post_load()] Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> CC: Andreas Faerber <afaerber@suse.de> CC: Christian Borntraeger <borntraeger@de.ibm.com> CC: Jason J. Herne <jjherne@us.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> [Cornelia Huck: tweaked cpu_post_load() comment] Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x/kvm: reuse kvm_s390_reset_vcpu() to get rid of ifdefsDavid Hildenbrand2014-10-101-7/+2
| | | | | | | | | | | | | | | | This patch reuses kvm_s390_reset_vcpu() to get rid of some CONFIG_KVM and CONFIG_USER_ONLY ifdefs in cpu.c. In order to get rid of CONFIG_USER_ONLY, kvm_s390_reset_vcpu() has to provide a dummy implementation - the two definitions are moved to the proper section in cpu.h. Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> CC: Andreas Faerber <afaerber@suse.de> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x/kvm: propagate s390 cpu state to kvmDavid Hildenbrand2014-10-101-0/+3
| | | | | | | | | | | | | | | | | | | | | Let QEMU propagate the cpu state to kvm. If kvm doesn't yet support it, it is silently ignored as kvm will still handle the cpu state itself in that case. The state is not synced back, thus kvm won't have a chance to actively modify the cpu state. To do so, control has to be given back to QEMU (which is already done so in all relevant cases). Setting of the cpu state can fail either because kvm doesn't support the interface yet, or because the state is invalid/not supported. Failed attempts will be traced Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> CC: Andreas Faerber <afaerber@suse.de> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x/kvm: proper use of the cpu states OPERATING and STOPPEDDavid Hildenbrand2014-10-101-28/+50
| | | | | | | | | | | | | | | | | | | | | This patch makes sure that halting a cpu and stopping a cpu are two different things. Stopping a cpu will also set the cpu halted - this is needed for common infrastructure to work (note that the stop and stopped flag cannot be used for our purpose because they are already used by other mechanisms). A cpu can be halted ("waiting") when it is operating. If interrupts are disabled, this is called a "disabled wait", as it can't be woken up anymore. A stopped cpu is treated like a "disabled wait" cpu, but in order to prepare for a proper cpu state synchronization with the kvm part, we need to track the real logical state of a cpu. Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> CC: Andreas Faerber <afaerber@suse.de> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* s390x/kvm: introduce proper states for s390 cpusDavid Hildenbrand2014-10-101-0/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | Until now, when a s390 cpu was stopped or halted, the number of running CPUs was tracked in a global variable. This was problematic for migration, so Jason came up with a per-cpu running state. As it turns out, we want to track the full logical state of a target vcpu, so we need real s390 cpu states. This patch is based on an initial patch by Jason Herne, but was heavily rewritten when adding the cpu states STOPPED and OPERATING. On the way we move add_del_running to cpu.c (the declaration is already in cpu.h) and modify the users where appropriate. Please note that the cpu is still set to be stopped when it is halted, which is wrong. This will be fixed in the next patch. The LOAD and CHECK-STOP state will not be used in the first step. Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> [folded Jason's patch into David's patch to avoid add/remove same lines] Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> CC: Andreas Faerber <afaerber@suse.de> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* target-s390x: Use cpu_exec_interrupt qom hookRichard Henderson2014-09-251-0/+1
| | | | | | | | Cc: Alexander Graf <agraf@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1410626734-3804-9-git-send-email-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* s390x/gdb: generate target.xml and handle fp/ac as coprocessorsDavid Hildenbrand2014-09-011-1/+3
| | | | | | | | | | | | | | | | | This patch reduces the core registers to the psw and the general purpose registers. The fpc and ac registers are handled as coprocessors registers by gdb. This allows to reuse the feature xml files taken from gdb without further modification and is what other architectures do. The target.xml is now generated and provided to the gdb client. Therefore, the client doesn't have to guess which registers are available at which logical register number. Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* s390x/kvm: execute the first cpu reset on the vcpu threadDavid Hildenbrand2014-09-011-0/+4
| | | | | | | | | | | As all full cpu resets currently call into the kernel to do initial cpu reset, let's run this reset (triggered by cpu_s390x_init()) on the proper vcpu thread. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* s390x/kvm: execute "system reset" cpu resets on the vcpu threadDavid Hildenbrand2014-09-011-1/+1
| | | | | | | | | | | Let's execute resets triggered by qemu system resets on the target vcpu thread. This will avoid synchronize_rcu's in the kernel. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* kvm: reset state from the CPU's reset methodPaolo Bonzini2014-05-131-0/+4
| | | | | | | | | | | | | | | | | | | Now that we have a CPU object with a reset method, it is better to keep the KVM reset close to the CPU reset. Using qemu_register_reset as we do now keeps them far apart. With this patch, PPC no longer calls the kvm_arch_ function, so it can get removed there. Other arches call it from their CPU reset handler, and the function gets an ARMCPU/X86CPU/S390CPU. Note that ARM- and s390-specific functions are called kvm_arm_* and kvm_s390_*, while x86-specific functions are called kvm_arch_*. That follows the convention used by the different architectures. Changing that is the topic of a separate patch. Reviewed-by: Gleb Natapov <gnatapov@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* cputlb: Change tlb_flush() argument to CPUStateAndreas Färber2014-03-131-2/+2
| | | | Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Move breakpoints field from CPU_COMMON to CPUStateAndreas Färber2014-03-131-2/+2
| | | | | | | | Most targets were using offsetof(CPUFooState, breakpoints) to determine how much of CPUFooState to clear on reset. Use the next field after CPU_COMMON instead, if any, or sizeof(CPUFooState) otherwise. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Turn cpu_handle_mmu_fault() into a CPUClass hookAndreas Färber2014-03-131-1/+3
| | | | | | | | Note that while such functions may exist both for *-user and softmmu, only *-user uses the CPUState hook, while softmmu reuses the prototype for calling it directly. Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Turn cpu_has_work() into a CPUClass hookAndreas Färber2014-03-131-0/+10
| | | | | | | | | 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>
* s390x/cpu: Use ioctl to reset state in the kernelThomas Huth2014-02-271-0/+9
| | | | | | | | | | | Some of the state in the kernel can not be reset from QEMU yet. For this we've got to use the KVM_S390_INITIAL_RESET ioctl to make sure that the state in the kernel is set to the right values during initial CPU reset, too. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* s390x/async_pf: Check for apf extension and enable pfaultDominik Dingel2014-02-271-0/+6
| | | | | | | | | | S390 can also use async page faults, to enhance guest scheduling. In case of live migration we want to disable the feature and let all pending request finish. Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* exec: Make ldl_*_phys input an AddressSpaceEdgar E. Iglesias2014-02-111-1/+1
| | | | | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
* s390/cpu: split CPU reset into architectured functionsChristian Borntraeger2013-08-301-3/+35
| | | | | | | | | | | | | | s390 provides several CPU resets: - CPU reset, clears interrupts, stop processing, clears TLB, but does not touch registers - initial CPU reset, like CPU reset, but also clears PSW, prefix, FPC, timer and control registers. It does not touch gprs, fprs and acrs (!) - Power on reset: the full monty wire up CPUClass reset to the full monty, but provide the lesser resets as part of S390CPUClass. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* s390: provide a cpu load normal functionChristian Borntraeger2013-08-301-0/+14
| | | | | | | | Some code needs to perform an IPL-like bootup that mimics the ESA (31bit) restart. Provide a cpu class method that does so. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Alexander Graf <agraf@suse.de>
* aio / timers: Switch entire codebase to the new timer APIAlex Bligh2013-08-221-2/+2
| | | | | | | | | | | This is an autogenerated patch using scripts/switch-timer-api. Switch the entire code base to using the new timer API. Note this patch may introduce some line length issues. Signed-off-by: Alex Bligh <alex@alex.org.uk> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* s390: Implement dump-guest-memory support for target s390xEkaterina Tumanova2013-07-301-0/+2
| | | | | | | | | | | | | | | With this patch dump-guest-memory on s390 produces an ELF formatted, crash-readable dump. In order to implement this, the arch-specific part of dump-guest-memory was added: target-s390x/arch_dump.c contains the whole set of function for writing Elf note sections of all types for s390x. Signed-off-by: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> [fixed indentation, use CamelCase, rename note_t to Note, use S390CPU] Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* cpu: Partially revert "cpu: Change qemu_init_vcpu() argument to CPUState"Andreas Färber2013-07-291-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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/+2
| | | | | | | | 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/+1
| | | | | | | | | | | | | 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: Turn cpu_get_phys_page_debug() into a CPUClass hookAndreas Färber2013-07-231-0/+3
| | | | | | | | | | | | 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>
* cpu: Introduce CPUClass::set_pc() for gdb_set_cpu_pc()Andreas Färber2013-07-231-0/+8
| | | | | | | 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>
* cpu: Move reset logging to CPUStateAndreas Färber2013-07-091-5/+0
| | | | | | | | | | | 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>
* log: Change log_cpu_state[_mask]() argument to CPUStateAndreas Färber2013-07-091-1/+1
| | | | | | | | | | | | | | | | Since commit 878096eeb278a8ac1ccd6667af73e026f29b4cf5 (cpu: Turn cpu_dump_{state,statistics}() into CPUState hooks) CPUArchState is no longer needed. Add documentation and make the functions available through qemu/log.h outside NEED_CPU_H to allow use in qom/cpu.c. Moving them to qom/cpu.h was not yet possible due to convoluted include paths, so that some devices grow an implicit and unneeded dependency on qom/cpu.h for now. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Reviewed-by: Richard Henderson <rth@twiddle.net> [AF: Simplified mb_cpu_do_interrupt() and do_interrupt_all() changes] Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Change qemu_init_vcpu() argument to CPUStateAndreas Färber2013-06-281-1/+0
| | | | | | | | 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 Färber2013-06-281-0/+1
| | | | | | | | | 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: Replace do_interrupt() by CPUClass::do_interrupt methodAndreas Färber2013-03-121-0/+1
| | | | | | | | | | 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>
* cpu: Move halted and interrupt_request fields to CPUStateAndreas Färber2013-03-121-4/+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>
* cpu: Add CPUArchState pointer to CPUStateAndreas Färber2013-02-161-0/+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>
* target-s390x: Move TCG initialization to S390CPU initfnAndreas Färber2013-02-161-0/+6
| | | | | | | Ensures that a QOM-created S390CPU is usable. Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
* target-s390x: Introduce QOM realizefn for S390CPUAndreas Färber2013-02-161-2/+14
| | | | | | | | | | Introduce realizefn and set realized = true in cpu_s390x_init(). Defer CPU reset from initfn to realizefn. Acked-by: Richard Henderson <rth@twiddle.net> [AF: Invoke parent's realizefn] Signed-off-by: Andreas Färber <afaerber@suse.de>
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