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path: root/target-s390x/op_helper.c
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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>
2012-09-10target-s390x: fix styleBlue Swirl
Before splitting op_helper.c and helper.c in the next patches, fix style issues. No functional changes. Replace also GCC specific __FUNCTION__ with standard __func__. Don't init static variable (cpu_s390x_init:inited) with 0. 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>
2012-08-15s390: Fix error handling and condition code of service callChristian Borntraeger
Invalid sccb addresses will cause specification or addressing exception. Lets add those checks. Furthermore, the good case (cc=0) was incorrect for KVM, we did not set the CC at all. We now use return codes < 0 as program checks and return codes > 0 as condition code values. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-04-14Use uintptr_t for various op related functionsBlue Swirl
Use uintptr_t instead of void * or unsigned long in several op related functions, env->mem_io_pc and GETPC() macro. Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-03-14target-s390x: Don't overuse CPUStateAndreas Färber
Scripted conversion: sed -i "s/CPUState/CPUS390XState/g" target-s390x/*.[hc] sed -i "s/#define CPUS390XState/#define CPUState/" target-s390x/cpu.h Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-05Move helpers.h to helper.hLluís Vilanova
Provides a file naming scheme consistent with other targets. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-01-04s390x: add TR function for EXECUTEAlexander Graf
Newer gcc versions (or glibc?) also generate code that tries to EXECUTE the TR opcode. Implement it so that we don't break valid guests. Reported-by: Andreas Faerber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-12-06fix typo: delete redundant semicolonDong Xu Wang
Double semicolons should be single. Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-14s390x: implement SIGP restart and shutdownAlexander Graf
An s390x OS does reboot and shutdown triggers through hypercalls that we didn't implement on the TCG backend yet. That means that so far we couldn't shut down virtual machines for example, having them hang on shutdown when not using KVM. With this patch, this restriction is gone. We can now shut down and reboot s390x virtual machines even when using the TCG backend. Signed-off-by: Alexander Graf <agraf@suse.de>
2011-11-14s390x: implement rrbe instruction properlyAlexander Graf
The rrbe instruction resets the reference bit in the given storage key. So far, we merely made it a nop and also returned an invalid CC value, so that the kernel never knew if a page actually got accessed. This patch implements it properly, flushing the R bit and returning the correct CC value. Signed-off-by: Alexander Graf <agraf@suse.de>
2011-11-14s390x: update R and C bits in storage keyAlexander Graf
When the s390x maps a page or writes happen to a page, the R and C bits get updated. The easiest way to implement this in qemu is to simply update them whenever we map a TLB translation and act according to the permissions. Signed-off-by: Alexander Graf <agraf@suse.de>
2011-11-14s390x: make ipte 31-bit awareAlexander Graf
When running 31-bit code we can potentially map the same virtual address twice - once as 0x0yyyyyyy and once as 0x8yyyyyyy, because the upper bit gets ignored. This also should be reflected in the tlb invalidation path, so we really invalidate also the transparently created tlb entries. Signed-off-by: Alexander Graf <agraf@suse.de>
2011-11-14s390x: add ldeb instructionAlexander Graf
While running perl, we encountered the ldeb instruction to be used, so we implement it :). Signed-off-by: Alexander Graf <agraf@suse.de>
2011-10-01softmmu_header: pass CPUState to tlb_fillBlue Swirl
Pass CPUState pointer to tlb_fill() instead of architecture local cpu_single_env hacks. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-07Remove unused is_softmmu parameter from cpu_handle_mmu_faultBlue Swirl
Parameter is_softmmu (and its evil mutant twin brother is_softmuu) is not used in cpu_*_handle_mmu_fault() functions, remove them and adjust callers. Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-07-30exec.h cleanupBlue Swirl
Move softmmu_exec.h include directives from target-*/exec.h to target-*/op_helper.c. Move also various other stuff only used in op_helper.c there. Define global env in dyngen-exec.h. For i386, move wrappers for segment and FPU helpers from user-exec.c to op_helper.c. Implement raise_exception_err_env() to handle dynamic CPUState. Move the function declarations to cpu.h since they can be used outside of op_helper.c context. LM32, s390x, UniCore32: remove unused cpu_halted(), regs_to_env() and env_to_regs(). ARM: make raise_exception() static. Convert #include "exec.h" to #include "cpu.h" #include "dyngen-exec.h" and remove now unused target-*/exec.h. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26cpu_loop_exit: avoid using AREG0Blue Swirl
Make cpu_loop_exit() take a parameter for CPUState instead of relying on global env. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26Fix fallouts from Linux header inclusionJan Kiszka
This is an all-in-one fix for the smaller and bigger mistakes of the build system changes for accompanied Linux headers: - only enable KVM and vhost on Linux hosts - fix powerpc asm header symlink - do not use Linux headers on non-Linux hosts - fix kvmclock for !CONFIG_KVM - fix s390 build on non-Linux hosts Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Tested-by: Andreas Färber <andreas.faerber@web.de> Tested-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-20Switch build system to accompanied kernel headersJan Kiszka
This helps reducing our build-time checks for feature support in the available Linux kernel headers. And it helps users that do not have sufficiently recent headers installed on their build machine. Consequently, the patch removes and build-time checks for kvm and vhost in configure, the --kerneldir switch, and KVM_CFLAGS. Kernel headers are supposed to be provided by QEMU only. s390 needs some extra love as it carries redefinitions from kernel headers. CC: Alexander Graf <agraf@suse.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-03s390x: fix cksm instructionAlexander Graf
The cksm instruction was implemented incorrectly, rendering UDP and TCP checksum calculation wrong, making an emulated s390x Linux guest break in most networking operations. This patch fixes odd end checksum calculation, takes the input register as input for the checksum and optimizes the overflow pieces by a bit. Signed-off-by: Alexander Graf <agraf@suse.de>
2011-05-20s390x: fix memory detection for guests > 64GBChristian Borntraeger
the s390 memory detection has a 16bit field that specifies the amount of increments. This patch adopts the memory size to always fit into that scheme. This also fixes virtio detection for these guests, since the descriptor page is located after the main memory. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-05-20s390x: Implement opcode helpersAlexander Graf
There are some instructions that can't (or shouldn't) be expressed by pure tcg code. For those, we call into externally compiled C functions. This patch implements those C functions. Signed-off-by: Alexander Graf <agraf@suse.de>
2011-05-20s390x: helper functions for system emulationAlexander Graf
When running system emulation, we need to transverse through the MMU and deliver interrupts according to the specification. This patch implements those two pieces and in addition adjusts the CPU initialization code to account for the new fields in CPUState. Signed-off-by: Alexander Graf <agraf@suse.de>
2011-04-20Remove unused function parameter from cpu_restore_stateStefan Weil
The previous patch removed the need for parameter puc. Is is now unused, so remove it. Cc: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Weil <weil@mail.berlios.de>
2010-03-07Update to a hopefully more future proof FSF addressBlue Swirl
See also 8167ee883931cb20c6264fc19d040ce2dc6ceaaa, 530e7615ce3c01882e582c84dc6304ab98a3d5c5 and fad6cb1a565bb73f83fc0e2654489457b489e436. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-12-05S/390 CPU fake emulationAlexander Graf
Because Qemu currently requires a TCG target to exist and there are quite some useful helpers here to lay the groundwork for out KVM target, let's create a stub TCG emulation target for S390X CPUs. This is required to make tcg happy. The emulation target itself won't work though. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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