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2015-02-03Merge remote-tracking branch 'remotes/rth/tags/pull-tg-s390-20150203' into ↵Peter Maydell
staging s390 translator bug fixes # gpg: Signature made Tue 03 Feb 2015 20:39:15 GMT using RSA key ID 4DD0279B # gpg: Good signature from "Richard Henderson <rth7680@gmail.com>" # gpg: aka "Richard Henderson <rth@redhat.com>" # gpg: aka "Richard Henderson <rth@twiddle.net>" * remotes/rth/tags/pull-tg-s390-20150203: target-s390x: fix and optimize slb* and slbg* computation of carry/borrow flag target-s390x: support OC and NC in the EX instruction disas/s390.c: Remove unused variables target-s390x: Mark check_privileged() as !CONFIG_USER_ONLY target-s390: Implement ECAG target-s390: Implement LURA, LURAG, STURG target-s390: Fix STURA target-s390: Fix STIDP target-s390: Implement EPSW target-s390: Implement SAM specification exception Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-02-03target-s390x: fix and optimize slb* and slbg* computation of carry/borrow flagTorbjorn Granlund
This patch fixes the bug with borrow_in being set incorrectly, but it also simplifies the logic to be much more plain, improving speed. It fixes both the 32-bit SLB* and 64-bit SLBG*. The SLBG* change has been well-tested. I haven't tested the SLB* change explicitly, but the code was copy-pasted from the tested code. The error of these functions' current implementations would not likely be triggered by compiler-generated code, since the only error was in the state of the carry/borrow flag. Compilers rarely generate an instruction sequence such as carry-set -> carry-set-and-use -> carry-use. (With Paolo's fix and mine, there are still a couple of failures from GMP's testsuite, but they are almost surely due to incorrect code generation from gcc 4.9. But since this gcc is running under qemu, it might be qemu bugs. I intend to investigate this.) Signed-off-by: Torbjorn Granlund <torbjorng@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-03target-s390x: support OC and NC in the EX instructionPaolo Bonzini
This is needed to run the GMP testsuite. Reported-by: Torbjorn Granlund <torbjorng@google.com> Tested-by: Torbjorn Granlund <torbjorng@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-03target-s390x: Mark check_privileged() as !CONFIG_USER_ONLYPeter Maydell
The function check_privileged() is only used in the softmmu configs; wrap it in an #ifndef CONFIG_USER_ONLY to avoid clang warnings on the linux-user builds. [rth: Remove inline marker too; it was only there to prevent exactly this warning in GCC.] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Stefan Weil <sw@weilnetz.de> Message-id: 1419373100-17690-2-git-send-email-peter.maydell@linaro.org Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-03target-s390: Implement ECAGRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-03target-s390: Implement LURA, LURAG, STURGRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-03target-s390: Fix STURARichard Henderson
We were storing 16 bits instead of 32. Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-03target-s390: Fix STIDPRichard Henderson
The implementation had been incomplete, as we did not store the machine type. Note that the machine_type member is still unset during initialization, so this has no effect yet. Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-03target-s390: Implement EPSWRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-03target-s390: Implement SAM specification exceptionRichard Henderson
Also, these are user-mode instructions; allow their use in CONFIG_USER_ONLY. Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-03s390x/kvm: unknown DIAGNOSE code should give a specification exceptionChristian Borntraeger
As described in CP programming services an unimplemented DIAGNOSE function should return a specification exception. Today we give the guest an operation exception. As both exception types are suppressing and Linux as a guest does not care about the type of program check in its exception table handler as long as both types have the same kind of error handling (nullifying, terminating, suppressing etc.) this was unnoticed. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-02-03s390x/kvm: Fix diag-308 register decodingThomas Huth
Fix the decoding of the r1 register number in the diagnose 308 handler. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Michael Mueller <mimu@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-01-20exec.c: Drop TARGET_HAS_ICE define and checksPeter Maydell
The TARGET_HAS_ICE #define is intended to indicate whether a target-* guest CPU implementation supports the breakpoint handling. However, all our guest CPUs have that support (the only two which do not define TARGET_HAS_ICE are unicore32 and openrisc, and in both those cases the bp support is present and the lack of the #define is just a bug). So remove the #define entirely: all new guest CPU support should include breakpoint handling as part of the basic implementation. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-id: 1420484960-32365-1-git-send-email-peter.maydell@linaro.org
2015-01-12kvm: extend kvm_irqchip_add_msi_route to work on s390Frank Blaschka
on s390 MSI-X irqs are presented as thin or adapter interrupts for this we have to reorganize the routing entry to contain valid information for the adapter interrupt code on s390. To minimize impact on existing code we introduce an architecture function to fixup the routing entry. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-01-12s390: implement pci instructionsFrank Blaschka
This patch implements the s390 pci instructions in qemu. It allows to access and drive pci devices attached to the s390 pci bus. Because of platform constrains devices using IO BARs are not supported. Also a device has to support MSI/MSI-X to run on s390. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-01-12s390: Add PCI bus supportFrank Blaschka
This patch implements a pci bus for s390x together with infrastructure to generate and handle hotplug events, to configure/unconfigure via sclp instruction, to do iommu translations and provide s390 support for MSI/MSI-X notification processing. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-01-12s390x/kvm: avoid syscalls by syncing registers with kvm_runDavid Hildenbrand
We can avoid loads of syscalls when dropping to user space by storing the values of more registers directly within kvm_run. Support is added for: - ARCH0: CPU timer, clock comparator, TOD programmable register, guest breaking-event register, program parameter - PFAULT: pfault parameters (token, select, compare) 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> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-01-12s390x/kvm: sync register support helper functionDavid Hildenbrand
Let's unify the code to sync registers by moving the checks into a helper function can_sync_regs(). 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> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-01-12s390x/css: Clean up unnecessary CONFIG_USER_ONLY wrappersThomas Huth
The css functions are only used from ioinst.c and other files that are only built for CONFIG_SOFTMMU. So we do not need the dummy wrappers for the CONFIG_USER_ONLY target in the cpu.h header. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Jason J. Herne <jjherne@us.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-01-03gen-icount: check cflags instead of use_icount globalPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-16qemu-log: add log category for MMU infoAntony Pavlov
Running barebox on qemu-system-mips* with '-d unimp' overloads stderr by very very many mips_cpu_handle_mmu_fault() messages: mips_cpu_handle_mmu_fault address=b80003fd ret 0 physical 00000000180003fd prot 3 mips_cpu_handle_mmu_fault address=a0800884 ret 0 physical 0000000000800884 prot 3 mips_cpu_handle_mmu_fault pc a080cd80 ad b80003fd rw 0 mmu_idx 0 So it's very difficult to find LOG_UNIMP message. The mips_cpu_handle_mmu_fault() messages appear on enabling ANY logging! It's not very handy. Adding separate log category for *_cpu_handle_mmu_fault() logging fixes the problem. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Acked-by: Alexander Graf <agraf@suse.de> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-id: 1418489298-1184-1-git-send-email-antonynpavlov@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-15Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
- Migration and linuxboot fixes for 2.2 regressions - valgrind/KVM support - small i386 patches - PCI SD host controller support - malloc/free cleanups from Markus (x86/scsi) - IvyBridge model - XSAVES support for KVM - initial patches from record/replay # gpg: Signature made Mon 15 Dec 2014 16:35:08 GMT using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (47 commits) sdhci: Support SDHCI devices on PCI sdhci: Define SDHCI PCI ids sdhci: Add "sysbus" to sdhci QOM types and methods sdhci: Remove class "virtual" methods sdhci: Set a default frequency clock serial: only resample THR interrupt on rising edge of IER.THRI serial: update LSR on enabling/disabling FIFOs serial: clean up THRE/TEMT handling serial: reset thri_pending on IER writes with THRI=0 linuxboot: fix loading old kernels kvm/apic: fix 2.2->2.1 migration target-i386: add Ivy Bridge CPU model target-i386: add f16c and rdrand to Haswell and Broadwell target-i386: add VME to all CPUs pc: add 2.3 machine types i386: do not cross the pages boundaries in replay mode cpus: make icount warp behave well with respect to stop/cont timer: introduce new QEMU_CLOCK_VIRTUAL_RT clock cpu-exec: invalidate nocache translation if they are interrupted icount: introduce cpu_get_icount_raw ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-15valgrind/s390x: avoid false positives on KVM_SET_FPU ioctlChristian Borntraeger
struct kvm_fpu contains an alignment padding on s390x. Let's use a designated initializer to avoid false positives from valgrind/memcheck. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-15KVM_CAP_IRQFD and KVM_CAP_IRQFD_RESAMPLE checksEric Auger
Compute kvm_irqfds_allowed by checking the KVM_CAP_IRQFD extension. Remove direct settings in architecture specific files. Add a new kvm_resamplefds_allowed variable, initialized by checking the KVM_CAP_IRQFD_RESAMPLE extension. Add a corresponding kvm_resamplefds_enabled() function. A special notice for s390 where KVM_CAP_IRQFD was not immediatly advirtised when irqfd capability was introduced in the kernel. KVM_CAP_IRQ_ROUTING was advertised instead. This was fixed in "KVM: s390: announce irqfd capability", ebc3226202d5956a5963185222982d435378b899 whereas irqfd support was brought in 84223598778ba08041f4297fda485df83414d57e, "KVM: s390: irq routing for adapter interrupts". Both commits first appear in 3.15 so there should not be any kernel version impacted by this QEMU modification. Signed-off-by: Eric Auger <eric.auger@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-10target-s390x: fix possible out of bounds readzhanghailiang
Array index starts at 0, so the valid index of ext_queue array, io_queue array, mchk_queue array should be MAX_EXT_QUEUE - 1, MAX_IO_QUEUE - 1, MAX_MCHK_QUEUE - 1. The original checks missed the invalid bound value, which will lead possible out of bounds read in the follow codes. Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-11-26s390x/kvm: Fix compile errorChristian Borntraeger
commit a2b257d6212a "memory: expose alignment used for allocating RAM as MemoryRegion API" triggered a compile error on KVM/s390x. Fix the prototype and the implementation of legacy_s390_alloc. Cc: Igor Mammedov <imammedo@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-23memory: expose alignment used for allocating RAM as MemoryRegion APIIgor Mammedov
introduce memory_region_get_alignment() that returns underlying memory block alignment or 0 if it's not relevant/implemented for backend. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-11-05s390x/kvm: Fix warning from sparseThomas Huth
When running "sparse" with the s390x kvm.c code, it complains that "constant 0x00400f1d40330000 is so big it is long" - let's fix this by appending a proper suffix. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-11-05s390x/kvm: Fix opcode decoding for eb instruction handlerFrank Blaschka
The second byte of the opcode is encoded in the lowest byte of the ipb field, not the lowest byte of the ipa field. Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
2014-11-05s390x: Implement SAM{24,31,64}Alexander Graf
The SAM instructions simply change 2 bits in PSW.MASK to advertise the current memory mode. While we can't fully guarantee that 31 bit mode (or even remotely 24 bit mode) actually work correctly, we don't check whether lpswe modifies these bits, so we shouldn't keep the guest from executing SAM instructions either. This patch implements all SAM instrutions with their actual PSW changing semantics, making more recent Linux kernels boot properly which do issue a SAM31 call during early boot. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-11-05s390x: Fix sclp console inputAlexander Graf
When injecting an sclp console interrupt into the guest, we increase the PC by 4 for some reason. I have no idea why I put that code there, but it's clearly wrong. Remove the increment. This patch fixes sclp serial input for the ccw machine. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
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>
2014-10-10s390x/kvm: synchronize the cpu state after SIGP (INITIAL) CPU RESETDavid Hildenbrand
We need to synchronize registers after a reset has been performed. The current code does that in qemu_system_reset(), load_normal_reset() and modified_clear_reset() for all vcpus. After SIGP (INITIAL) CPU RESET, this needs to be done for the targeted vcpu as well, so let's call cpu_synchronize_post_reset() in the respective handlers. 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>
2014-10-10s390x/kvm: reuse kvm_s390_reset_vcpu() to get rid of ifdefsDavid Hildenbrand
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>
2014-10-10s390x/kvm: propagate s390 cpu state to kvmDavid Hildenbrand
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>
2014-10-10s390x/kvm: proper use of the cpu states OPERATING and STOPPEDDavid Hildenbrand
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>
2014-10-10s390x/kvm: introduce proper states for s390 cpusDavid Hildenbrand
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>
2014-09-25target-s390x: Use cpu_exec_interrupt qom hookRichard Henderson
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>
2014-09-23s390x/css: support format-0 ccwsCornelia Huck
Add support for format-0 ccws in channel programs. As a format-1 ccw contains the same information as format-0 ccws, only supporting larger addresses, simply convert every ccw to format-1 as we walk the chain. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-09-01s390x/gdb: coding style fixesDavid Hildenbrand
This patch cleanes up two coding style issues (missing whitespaces). 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>
2014-09-01s390x/gdb: generate target.xml and handle fp/ac as coprocessorsDavid Hildenbrand
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>
2014-09-01s390x/gdb: don't touch the cc if tcg is not enabledDavid Hildenbrand
When reading/writing the psw mask, the condition code may only be touched if running on tcg. 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>
2014-09-01sclp-s390: Add memory hotplug SCLPsMatthew Rosato
Add memory information to read SCP info and add handlers for Read Storage Element Information, Attach Storage Element, Assign Storage and Unassign Storage. Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-09-01virtio-ccw: Include standby memory when calculating storage incrementMatthew Rosato
When determining the memory increment size, use the maxmem size if it was specified. Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-09-01s390x/kvm: execute the first cpu reset on the vcpu threadDavid Hildenbrand
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>
2014-09-01s390x/kvm: execute "system reset" cpu resets on the vcpu threadDavid Hildenbrand
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>
2014-09-01s390x/kvm: execute sigp orders on the target vcpu threadDavid Hildenbrand
All sigp orders that can result in ioctls on the target vcpu should be executed on the associated 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>
2014-09-01s390x/kvm: run guest triggered resets on the target vcpu threadDavid Hildenbrand
Currently, load_normal_reset() and modified_clear_reset() as triggered by a guest vcpu will initiate cpu resets on the current vcpu thread for all cpus. The reset should happen on the individual vcpu thread instead, so let's use run_on_cpu() for this. This avoids calls to synchronize_rcu() 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>
2014-08-12trace: [tcg] Include TCG-tracing header on all targetsLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-07-14s390x/kvm: synchronize guest floating point registersJason J. Herne
Add code to kvm_arch_get_registers and kvm_arch_put_registers to save/restore floating point registers. This missing sync was unnoticed until migration of userspace that uses fprs. Signed-off-by: Jason J. Herne <jjherne@us.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> [Update patch to latest upstream] Cc: qemu-stable@nongnu.org Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-10 16:12:34 +0000