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2017-08-30target/s390x: move cc_name() to helper.cDavid Hildenbrand
While at it, move the translations into the function and properly pass enum cc_op as parameter. We can't move it to cc_helper.c as this would break --disable-tcg. Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20170818114353.13455-10-david@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2017-07-25target/s390x: Move exception-related functions to a new excp_helper.c fileThomas Huth
These functions can not be compiled with --disable-tcg. But since we need the other functions from helper.c in the non-tcg build, we can also not simply remove helper.c from the non-tcg builds. Thus the problematic functions have to be moved into a separate new file instead that we can later omit in the non-tcg builds. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1500886370-14572-5-git-send-email-thuth@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2017-07-25target/s390x: Rework program_interrupt() and related functionsThomas Huth
misc_helper.c won't be compiled with --disable-tcg anymore, but we still need the program_interrupt() function in that case. Move it to interrupt.c instead, and refactor it to re-use the code from trigger_pgm_exception() (for TCG) and enter_pgmcheck() (for KVM, which now got renamed to kvm_s390_program_interrupt() for clarity). Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1500886370-14572-4-git-send-email-thuth@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2017-07-25target/s390x: Move s390_cpu_dump_state() to helper.cThomas Huth
translate.c can not be compiled with --disable-tcg, but we need the s390_cpu_dump_state() in KVM-only builds, too. So let's move that function to helper.c instead, which will also be compiled when --disable-tcg has been specified. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1500886370-14572-2-git-send-email-thuth@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2017-06-13target/s390x: rework PGM interrupt psw.addr handlingDavid Hildenbrand
We can tell from the program interrupt code, whether a program interrupt has to forward the address in the PGM new PSW (suppressing/terminated/completed) to point at the next instruction, or if it is nullifying and the PSW address does not have to be incremented. So let's not modify the PSW address outside of the injection path and handle this internally. We just have to handle instruction length auto detection if no valid instruction length can be provided. This should fix various program interrupt injection paths, where the PSW was not properly forwarded. Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20170609142156.18767-3-david@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-06-06target/s390x: addressing exceptions are suppressingDavid Hildenbrand
We have to make the address in the old PSW point at the next instruction, as addressing exceptions are suppressing and not nullifying. I assume that there are a lot of other broken cases (as most instructions we care about are suppressing) - all trigger_pgm_exception() specifying and explicit number or ILEN_LATER look suspicious, however this is another story that might require bigger changes (and I have to understand when the address might already have been incremented first). This is needed to make an upcoming kvm-unit-test work. Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20170529121228.2789-1-david@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-06-06target/s390x: Implement EXECUTE via new TranslationBlockRichard Henderson
Previously, helper_ex would construct the insn and then implement the insn via direct calls other helpers. This was sufficient to boot Linux but that is all. It is easy enough to go the whole nine yards by stashing state for EXECUTE within the cpu, and then rely on a new TB to be created that properly and completely interprets the insn. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-05-23shutdown: Add source information to SHUTDOWN and RESETEric Blake
Time to wire up all the call sites that request a shutdown or reset to use the enum added in the previous patch. It would have been less churn to keep the common case with no arguments as meaning guest-triggered, and only modified the host-triggered code paths, via a wrapper function, but then we'd still have to audit that I didn't miss any host-triggered spots; changing the signature forces us to double-check that I correctly categorized all callers. Since command line options can change whether a guest reset request causes an actual reset vs. a shutdown, it's easy to also add the information to reset requests. Signed-off-by: Eric Blake <eblake@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> [ppc parts] Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> [SPARC part] Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x parts] Message-Id: <20170515214114.15442-5-eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-12target/s390x: Diagnose specification exception for atomicsRichard Henderson
All of the interlocked access facility instructions raise a specification exception for unaligned accesses. Do this by using the (previously unused) unaligned_access hook. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-12-20Move target-* CPU file into a target/ folderThomas Huth
We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part] Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part] Acked-by: Michael Walle <michael@walle.cc> [lm32 part] Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part] Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part] Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part] Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part] Acked-by: Richard Henderson <rth@twiddle.net> [alpha part] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part] Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part] Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part] Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part] Signed-off-by: Thomas Huth <thuth@redhat.com>