aboutsummaryrefslogtreecommitdiff
path: root/target-s390x/cpu.h
AgeCommit message (Collapse)AuthorFilesLines
2013-08-30s390: wire up nmi command to raise a RESTART interrupt on S390Eugene (jno) Dvurechenski1-0/+13
There is the 'nmi' command that is used to trigger a guest dump via kdump feature on x86. s390 uses RESTART interrupt to trigger kdump. So, this patch provides a mean to use 'nmi' command on s390 to raise RESTART interrupt. The CPU to receive the RESTART interrupt is the "default" one. There is an infrastructure to select the "default" CPU using 'cpu' command. The 'info cpus' command can be used to see which one is the "default". In order to wire up the RESTART to 'nmi' command we had to: 1. implement the kvm_s390_cpu_restart function by exporting the existing code 2. implement s390_cpu_restart function as kvm-aware wrapper 3. modify the qmp_inject_nmi function to enable (for s390) the scan for "default" CPU and call s390_cpu_restart for it; 3. fix some messages. Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Alexander Graf <agraf@suse.de>
2013-08-30s390: provide a cpu load normal functionChristian Borntraeger1-0/+3
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>
2013-08-30s390: provide I/O subsystem resetChristian Borntraeger1-0/+1
Provide a function that resets the I/O subsystem. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Alexander Graf <agraf@suse.de>
2013-08-30s390/kvm: basic implementation of diagnose 308 subcode 6Eugene (jno) Dvurechenski1-0/+3
Linux uses a check for subcode 6 to decide if other subcodes are available. Provide a minimal implementation for subcode 6, as well as for subcode 5. Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> [Move code from kvm.c into misc_helper.c]
2013-07-23cpu: Introduce CPUClass::synchronize_from_tb() for cpu_pc_from_tb()Andreas Färber1-5/+0
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>
2013-07-09linux-user: Move cpu_clone_regs() and cpu_set_tls() into linux-userPeter Maydell1-16/+0
The functions cpu_clone_regs() and cpu_set_tls() are not purely CPU related -- they are specific to the TLS ABI for a a particular OS. Move them into the linux-user/ tree where they belong. target-lm32 had entirely unused implementations, since it has no linux-user target; just drop them. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-01virtio-ccw: fix build breakage on windowsCornelia Huck1-4/+7
event_notifier_get_fd() is not available on windows hosts. Fix this by moving the calls to event_notifier_get_fd() to the kvm code. Reported-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2013-06-25virtio-ccw: Wire up ioeventfd.Cornelia Huck1-0/+16
On hosts that support ioeventfd, make use of it for host-to-guest notifications via diagnose 500. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2013-06-20Revert "s390x: reduce TARGET_PHYS_ADDR_SPACE_BITS to 62"Paolo Bonzini1-4/+1
This reverts commit 311f83ca08c011b048c063c2fd3038a8957970bc. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-24s390x: reduce TARGET_PHYS_ADDR_SPACE_BITS to 62Paolo Bonzini1-1/+4
With the next patch, the memory API will complain if the TARGET_PHYS_ADDR_SPACE_BITS gets dangerously close to an overflow. s390x can handle up to 64 bit of physical address space from its page tables, but we never use that much. Just decrease the value. Cc: Alexander Graf <agraf@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-26Allow selective runtime register synchronizationJason J. Herne1-0/+17
We want to avoid expensive register synchronization IOCTL's on the hot path so a new kvm_s390_get_registers_partial() is introduced as a compliment to kvm_arch_get_registers(). The new function is called on the hot path, and kvm_arch_get_registers() is called when we need the complete runtime register state. kvm_arch_put_registers() is updated to only sync the partial runtime set when we've only dirtied the partial runtime set. This is to avoid sending bad data back to KVM if we've only partially synced the runtime register set. Signed-off-by: Jason J. Herne <jjherne@us.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-12cpu: Replace do_interrupt() by CPUClass::do_interrupt methodAndreas Färber1-1/+0
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 Färber1-3/+3
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>
2013-03-12cpu: Move halted and interrupt_request fields to CPUStateAndreas Färber1-2/+3
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>
2013-03-08s390/css: Fix subchannel detectionChristian Borntraeger1-1/+1
We have to consider the m bit to find the real channel subsystem when determining the last subchannel. If we fail to take this into account, removal of a subchannel in the middle of a big list of devices will stop device detection after a reboot. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-02-16target-s390x: Drop unused cpu_s390x_close() prototypeAndreas Färber1-1/+0
It was never implemented. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-02-13s390: Fix handling of iscs.Cornelia Huck1-1/+1
There are two ways to express an interruption subclass: - As a bitmask, as used in cr6. - As a number, as used in the I/O interruption word. Unfortunately, we have treated to I/O interruption word as if it contained the bitmask as well, which went unnoticed so far as - (queued-for-next) kvm made the same mistake, and - Linux guest kernels don't check the isc value in the I/O interruption word for subchannel interrupts. Make sure that we treat the I/O interruption word correctly. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-02-01target-s390x: Pass S390CPU to s390_{add, del}_running_cpu()Andreas Färber1-4/+4
This prepares for moving the halted field to CPUState. Most call sites can already supply S390CPU, for some env becomes unused. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-02-01target-s390x: Clean up cpu_inject_*() signaturesAndreas Färber1-5/+10
Despite cautioning that S390CPU is needed for upcoming CPUState refactorings, commit 5d69c547d947798cba92d836d06f6e017ba2b19d (s390: I/O interrupt and machine check injection.) added functions cpu_inject_io() and cpu_inject_crw_mchk() with CPUS390XState argument, claiming consistency with cpu_inject_ext(). This complicates making cpu_interrupt() take a CPUState even more and it required to pass &cpu->env from some S390CPU-aware call sites already, creating inconsistency elsewhere. Address that. This also eliminates the need for CPUS390XState in s390_virtio_irq(). Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-29s390: Use s390_cpu_physical_memory_map for tpi.Cornelia Huck1-2/+2
Map the I/O interruption code before calling into css. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-29s390: Wire up channel I/O in kvm.Cornelia Huck1-0/+11
Trigger the code for our virtual css in case of instruction intercepts for I/O instructions. Handle the tsch exit for the subchannel-related part of tsch. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-29s390: Virtual channel subsystem support.Cornelia Huck1-0/+62
Provide a mechanism for qemu to provide fully virtual subchannels to the guest. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-29s390: Add channel I/O instructions.Cornelia Huck1-0/+100
Provide handlers for (most) channel I/O instructions. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-29s390: I/O interrupt and machine check injection.Cornelia Huck1-1/+68
I/O interrupts are queued per isc. Only crw pending machine checks are supported. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-29s390: Channel I/O basic definitions.Cornelia Huck1-0/+1
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>
2013-01-29s390: Add mapping helper functions.Cornelia Huck1-0/+4
Add s390_cpu_physical_memory_{map,unmap} with special handling for the lowcore. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18s390: Add a hypercall registration interface.Cornelia Huck1-1/+1
Allow virtio machines to register for different diag500 function codes and convert s390-virtio to use it. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18s390x: Remove inline function ebcdic_put and related data from cpu.hStefan Weil1-81/+0
The function is only used in misc_helper.c, so move it to that file. This reduces the size of debug executables (compiled without optimization) because they get unused code and data for each compilation which includes cpu.h. Executables with optimization don't change their size. ebcdic2ascii is currently unused and could be removed (not done here). The array ascii2ebcdic must be accessed with an unsigned index, therefore (int)ascii[i] was replaced by (uint8_t)ascii[i]. The old code would have failed for a signed char less than 0. The current code only converts "QEMU" and spaces to EBCDIC, so there is no problem today. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18S390: Enable -cpu help and QMP query-cpu-definitionsViktor Mihajlovski1-0/+3
This enables qemu -cpu help to return a list of supported CPU models on s390 and also to query for cpu definitions in the monitor. Initially only cpu model = host is returned. This needs to be reworked into a full-fledged CPU model handling later on. This change is needed to allow libvirt exploiters (like OpenStack) to specify a CPU model. Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [agraf: fix s390x-linux-user, adjust header locations] Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18s390: new contributions GPLv2 or laterChristian Borntraeger1-1/+4
IBMs s390 contributions were meant to to be gplv2 or later (since we were contributing to qemu). Several of the s390 specific files link to gpl code anyway, so lets clarify the licence statement for new contributions for those files that we have touched multiple times or will likely touch again. This patch does not touch files that mostly deal with tcg. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-05target-s390: Fix cpu_clone_regsRichard Henderson1-1/+1
R2 is the syscall return register, not R0. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert FLOGRRichard Henderson1-0/+2
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert FP ADD, COMPARE, LOAD TEST/ROUND/LENGTHENEDRichard Henderson1-7/+3
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert SHIFT, ROTATE SINGLERichard Henderson1-2/+4
Note that we were missing the 32-bit SLA. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Send signals for divideRichard Henderson1-0/+2
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert ADD LOGICAL CARRY and SUBTRACT LOGICAL BORROWRichard Henderson1-0/+8
I'm resonably certain that the carry/borrow-out condition for both helpers was incorrect, failing to take into account the carry-in. Adding the new CC_OP codes also allows removing the awkward interface we used for the slb helpers. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert 64-bit MULTIPLY LOGICALRichard Henderson1-6/+9
Use a new "retxl" member of CPUS290XState to return the "eXtra Low" part of a 128-bit value. That said, this will get used when two independent values need returning (e.g. quotient+remainder) as well. At the same time, shuffle the elements of CPUS390XState to get this new space from existing padding in the structure. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Reorg exception handlingRichard Henderson1-27/+22
Make the user path more like the system path. Prepare for more kinds of runtime exceptions. Rename ILC to ILEN to make it clear that we want to pass around a full instruction length, rather than a "code" that happens to be stored one bit left in a larger field. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Fix gdbstubRichard Henderson1-73/+0
The real gdb protocol doesn't split out pc or cc as real registers. Those are pseudos that are extracted as needed from the PSW. Don't modify env->cc_op during read -- that way lies heisenbugs. Fill in the XXX for the fp registers. Remove duplicated defines in cpu.h. Signed-off-by: Richard Henderson <rth@twiddle.net>
2012-12-23Merge branch 'master' of git://git.qemu.org/qemu into qom-cpuAndreas Färber1-4/+4
Adapt header include paths. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19kvm: Pass CPUState to kvm_vcpu_ioctl()Andreas Färber1-6/+6
Adapt helper functions to pass X86CPU / PowerPCCPU / S390CPU. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19fpu: move public header file to include/fpuPaolo Bonzini1-1/+1
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19exec: move include files to include/exec/Paolo Bonzini1-3/+3
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-10-31cpus: Pass CPUState to [qemu_]cpu_has_work()Andreas Färber1-1/+3
For target-mips also change the return type to bool. Make include paths for cpu-qom.h consistent for alpha and unicore32. Signed-off-by: Andreas Färber <afaerber@suse.de> [AF: Updated new target-openrisc function accordingly] Acked-by: Richard Henderson <rth@twiddle.net> (for alpha)
2012-10-29s390: sclp base supportHeinz Graalfs1-12/+1
This adds a more generic infrastructure for handling Service-Call requests on s390. Currently we only support a small subset of Read SCP Info directly in target-s390x. This patch provides the base infrastructure for supporting more commands and moves Read SCP Info. In the future we could add additional commands for hotplug, call home and event handling. Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-10-23Rename target_phys_addr_t to hwaddrAvi Kivity1-1/+1
target_phys_addr_t is unwieldly, violates the C standard (_t suffixes are reserved) and its purpose doesn't match the name (most target_phys_addr_t addresses are not target specific). Replace it with a finger-friendly, standards conformant hwaddr. Outstanding patchsets can be fixed up with the command git rebase -i --exec 'find -name "*.[ch]" | xargs s/target_phys_addr_t/hwaddr/g' origin Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-10target-s390x: switch to AREG0 free modeBlue Swirl1-10/+0
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 FPU helpersBlue Swirl1-2/+12
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 Swirl1-1/+1
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 condition code helpersBlue Swirl1-0/+3
Move condition code helpers to cc_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
generated by cgit v1.1 at 2024-12-24 12:37:35 +0000