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2016-09-06s390x/cpumodel: generate CPU feature lists for CPU modelsMichael Mueller
This patch introduces the helper "gen-features" which allows to generate feature list definitions at compile time. Its flexibility is better and the error-proneness is lower when compared to static programming time added statements. The helper includes "target-s390x/cpu_features.h" to be able to use named facility bits instead of numbers. The generated defines will be used for the definition of CPU models. We generate feature lists for each HW generation and GA for EC models. BC models are always based on a EC version and have no separate definitions. Base features: Features we expect to be always available in sane setups. Migration safe - will never change. Can be seen as "minimum features required for a CPU model". Default features: Features we expect to be stable and around in latest setups (e.g. having KVM support) - not migration safe. Max features: All supported features that are theoretically allowed for a CPU model. Exceeding these features could otherwise produce problems with IBC (instruction blocking controls) in KVM. Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> [generate base, default and models. renaming and cleanup] Message-Id: <20160905085244.99980-6-dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-09-06s390x/cpumodel: introduce CPU featuresMichael Mueller
The patch introduces s390x CPU features (most of them refered to as facilities) along with their discription and some functions that will be helpful when working with the features later on. Please note that we don't introduce all known CPU features, only the ones currently supported by KVM + QEMU. We don't want to enable later on blindly any facilities, for which we don't know yet if we need QEMU support to properly support them (e.g. migrate additional state when active). We can update QEMU later on. Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> [reworked to include non-stfle features, added definitions] Message-Id: <20160905085244.99980-5-dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-09-06s390x/cpumodel: "host" and "qemu" as CPU subclassesDavid Hildenbrand
This patch introduces two CPU models, "host" and "qemu". "qemu" is used as default when running under TCG. "host" is used as default when running under KVM. "host" cannot be used without KVM. "host" is not migration-safe. They both inherit from the base s390x CPU, which is turned into an abstract class. This patch also changes CPU creation to take care of the passed CPU string and reuses common code parse_features() function for that purpose. Unknown CPU definitions are now reported. The "-cpu ?" and "query-cpu-definition" commands are changed to list all CPU subclasses automatically, including migration-safety and whether static. Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Message-Id: <20160905085244.99980-3-dahi@linux.vnet.ibm.com> [CH: fix up self-assignments in s390_cpu_list, as spotted by clang] Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-02-18s390x/mmu: Move mmu_translate() and friends to separate fileThomas Huth
helper.c is quite overcrowded already, so let's move the MMU translation to a separate file instead (like it has been done with the other targets already). Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Acked-by: Alexander Graf <agraf@suse.de> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-10-10s390x/migration: migrate CPU stateThomas Huth
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>
2013-07-30s390: Implement dump-guest-memory support for target s390xEkaterina Tumanova
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>
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>
2013-02-01target-s390x: Mark as unmigratableAndreas Färber
CPU_SAVE_VERSION was undefined, so "cpu_common" VMState and cpu_{save,load}() were not registered. They were no-ops. Therefore there is no backwards compatibility to keep, so we can mark S390CPU as unmigratable at device level. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Alexander Graf <agraf@suse.de> Reviewed-by: Juan Quintela <quintela@redhat.com>
2013-01-29s390: Channel I/O basic definitions.Cornelia Huck
Basic channel I/O structures and helper function. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-09-10target-s390x: switch to AREG0 free modeBlue Swirl
Add an explicit CPUState parameter instead of relying on AREG0. Remove temporary wrappers and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> [agraf: fix conflicts] Signed-off-by: Alexander Graf <agraf@suse.de>
2012-09-10target-s390x: avoid AREG0 for misc helpersBlue Swirl
Make misc helpers take a parameter for CPUState instead of relying on global env. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> [agraf: fix conflict] Signed-off-by: Alexander Graf <agraf@suse.de>
2012-09-10target-s390x: avoid AREG0 for condition code helpersBlue Swirl
Make condition code helpers take a parameter for CPUState instead of relying on global env. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-09-10target-s390x: avoid AREG0 for integer helpersBlue Swirl
Make integer helpers take a parameter for CPUState instead of relying on global env. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-09-10target-s390x: avoid AREG0 for FPU helpersBlue Swirl
Make FPU helpers take a parameter for CPUState instead of relying on global env. Introduce temporary wrappers for FPU load and store ops. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-09-10target-s390x: rename op_helper.c to misc_helper.cBlue Swirl
Now op_helper.c contains miscellaneous helpers, rename it to misc_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> [agraf: fix conflict] Signed-off-by: Alexander Graf <agraf@suse.de>
2012-09-10target-s390x: split memory access helpersBlue Swirl
Move memory access helpers to mem_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> [agraf: fold softmmu include ifdefs together] Signed-off-by: Alexander Graf <agraf@suse.de>
2012-09-10target-s390x: split integer helpersBlue Swirl
Move integer helpers to int_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-09-10target-s390x: split condition code helpersBlue Swirl
Move condition code helpers to cc_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-09-10target-s390x: split FPU opsBlue Swirl
Move floating point instructions to fpu_helper.c. While exporting some condition code helpers, avoid duplicate identifier conflict with translate.c. Remove unused set_cc_nz_f64() in translate.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-08-15s390: provide interface for service interrupt/introduce interrupt.cChristian Borntraeger
This patch creates interrupt.c. The first user is a callback for hw/* code to trigger an service interrupt for a given sccb value. Several interrupt types for s390 are floating (can be delivered to all CPUs). so this code does not belong to a specific CPU. Other interrupts (like the virtio one) are also floating and can be moved here later on. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-07build: move other target-*/ objects to nested Makefile.objsPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-06-07build: move libobj-y variable to nested Makefile.objsPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-06-07build: move obj-TARGET-y variables to nested Makefile.objsPaolo Bonzini
Also drop duplicate occurrence of device-hotplug.o. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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