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2016-02-23all: Clean up includesPeter Maydell1-1/+0
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-09tcg: Change tcg_global_mem_new_* to take a TCGv_ptrRichard Henderson1-4/+4
Thus, use cpu_env as the parameter, not TCG_AREG0 directly. Update all uses in the translators. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-03log: do not unnecessarily include qom/cpu.hPaolo Bonzini1-0/+1
Split the bits that require it to exec/log.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Message-id: 1452174932-28657-8-git-send-email-den@openvz.org Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-01-29alpha: Clean up includesPeter Maydell10-4/+10
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-12-git-send-email-peter.maydell@linaro.org
2016-01-22fpu: Replace uint64 typedef with uint64_tPeter Maydell1-1/+1
Replace the uint64 softfloat-specific typedef with uint64_t. This change was made with find include fpu target-* -name '*.[ch]' | xargs sed -i -e 's/\buint64\b/uint64_t/g' together with manual removal of the typedef definition, and manual undoing of some mis-hits where macro arguments were being used for token pasting rather than as a type. Note that the target-mips/kvm.c and target-s390x/kvm.c changes are fixing code that should not have been using the uint64 type in the first place. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Acked-by: Leon Alrae <leon.alrae@imgtec.com> Acked-by: James Hogan <james.hogan@imgtec.com> Message-id: 1452603315-27030-3-git-send-email-peter.maydell@linaro.org
2015-11-06target-alpha: fix uninitialized variablePaolo Bonzini1-1/+1
I am not sure why the compiler does not catch it. There is no semantic change since gen_excp returns EXIT_NORETURN, but the old code is wrong. Reported by Coverity. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-28target-*: Advance pc after recognizing a breakpointRichard Henderson1-0/+5
Some targets already had this within their logic, but make sure it's present for all targets. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-22disas: QOMify alpha specific disas setupPeter Crosthwaite1-0/+8
Move the target_disas() alpha specifics to the CPUClass::disas_set_info() hook and delete the #ifdef specific code in disas.c. This also makes monitor_disas() consistent with target_disas(), as monitor_disas() was missing a set of the BFD (This was an omission from commit b9bec751c8c8b08d8055da32306eb105db03031b). Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-10-09qdev: Protect device-list-properties against broken devicesMarkus Armbruster1-0/+7
Several devices don't survive object_unref(object_new(T)): they crash or hang during cleanup, or they leave dangling pointers behind. This breaks at least device-list-properties, because qmp_device_list_properties() needs to create a device to find its properties. Broken in commit f4eb32b "qmp: show QOM properties in device-list-properties", v2.1. Example reproducer: $ qemu-system-aarch64 -nodefaults -display none -machine none -S -qmp stdio {"QMP": {"version": {"qemu": {"micro": 50, "minor": 4, "major": 2}, "package": ""}, "capabilities": []}} { "execute": "qmp_capabilities" } {"return": {}} { "execute": "device-list-properties", "arguments": { "typename": "pxa2xx-pcmcia" } } qemu-system-aarch64: /home/armbru/work/qemu/memory.c:1307: memory_region_finalize: Assertion `((&mr->subregions)->tqh_first == ((void *)0))' failed. Aborted (core dumped) [Exit 134 (SIGABRT)] Unfortunately, I can't fix the problems in these devices right now. Instead, add DeviceClass member cannot_destroy_with_object_finalize_yet to mark them: * Hang during cleanup (didn't debug, so I can't say why): "realview_pci", "versatile_pci". * Dangling pointer in cpus: most CPUs, plus "allwinner-a10", "digic", "fsl,imx25", "fsl,imx31", "xlnx,zynqmp", because they create such CPUs * Assert kvm_enabled(): "host-x86_64-cpu", host-i386-cpu", "host-powerpc64-cpu", "host-embedded-powerpc-cpu", "host-powerpc-cpu" (the powerpc ones can't currently reach the assertion, because the CPUs are only registered when KVM is enabled, but the assertion is arguably in the wrong place all the same) Make qmp_device_list_properties() fail cleanly when the device is so marked. This improves device-list-properties from "crashes, hangs or leaves dangling pointers behind" to "fails". Not a complete fix, just a better-than-nothing work-around. In the above reproducer, device-list-properties now fails with "Can't list properties of device 'pxa2xx-pcmcia'". This also protects -device FOO,help, which uses the same machinery since commit ef52358 "qdev-monitor: include QOM properties in -device FOO, help output", v2.2. Example reproducer: $ qemu-system-aarch64 -machine none -device pxa2xx-pcmcia,help Before: qemu-system-aarch64: .../memory.c:1307: memory_region_finalize: Assertion `((&mr->subregions)->tqh_first == ((void *)0))' failed. After: Can't list properties of device 'pxa2xx-pcmcia' Cc: "Andreas Färber" <afaerber@suse.de> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Anthony Green <green@moxielogic.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Jia Liu <proljc@gmail.com> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Walle <michael@walle.cc> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Richard Henderson <rth@twiddle.net> Cc: qemu-ppc@nongnu.org Cc: qemu-stable@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <1443689999-12182-10-git-send-email-armbru@redhat.com>
2015-10-08s/cpu_get_real_ticks/cpu_get_host_ticks/Christopher Covington1-1/+1
This should help clarify the purpose of the function that returns the host system's CPU cycle count. Signed-off-by: Christopher Covington <cov@codeaurora.org> Acked-by: Paolo Bonzini <pbonzini@redhat.com> ppc portion Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-07tcg: Remove gen_intermediate_code_pcRichard Henderson1-37/+4
It is no longer used, so tidy up everything reached by it. This includes the gen_opc_* arrays, the search_pc parameter and the inline gen_intermediate_code_internal functions. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07tcg: Pass data argument to restore_state_to_opcRichard Henderson1-2/+3
The gen_opc_* arrays are already redundant with the data stored in the insn_start arguments. Transition restore_state_to_opc to use data from the latter. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07tcg: Add TCG_MAX_INSNSRichard Henderson1-0/+3
Adjust all translators to respect it. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07target-*: Drop cpu_gen_code defineRichard Henderson1-1/+0
This symbol no longer exists. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07target-*: Introduce and use cpu_breakpoint_testRichard Henderson1-9/+4
Reduce the boilerplate required for each target. At the same time, move the test for breakpoint after calling tcg_gen_insn_start. Note that arm and aarch64 do not use cpu_breakpoint_test, but still move the inline test down after tcg_gen_insn_start. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07target-*: Increment num_insns immediately after tcg_gen_insn_startRichard Henderson1-2/+2
This does tidy the icount test common to all targets. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07target-*: Unconditionally emit tcg_gen_insn_startRichard Henderson1-4/+2
While we're at it, emit the opcode adjacent to where we currently record data for search_pc. This puts gen_io_start et al on the "correct" side of the marker. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07tcg: Rename debug_insn_start to insn_startRichard Henderson1-1/+1
With an eye toward making it mandatory. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-25alpha: Remove ELF_MACHINE from cpu.hPeter Crosthwaite1-2/+0
ELF_MACHINE is unused by target alpha. Cc: Richard Henderson <rth@twiddle.net> Reviewed-by: Richard Henderson <rth@twiddle.net> Acked-By: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-11tlb: Add "ifetch" argument to cpu_mmu_index()Benjamin Herrenschmidt2-2/+2
This is set to true when the index is for an instruction fetch translation. The core get_page_addr_code() sets it, as do the SOFTMMU_CODE_ACCESS acessors. All targets ignore it for now, and all other callers pass "false". This will allow targets who wish to split the mmu index between instruction and data accesses to do so. A subsequent patch will do just that for PowerPC. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Message-Id: <1439796853-4410-2-git-send-email-benh@kernel.crashing.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-11typofixes - v4Veres Lajos1-1/+1
Signed-off-by: Veres Lajos <vlajos@gmail.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-09-03Merge remote-tracking branch 'remotes/rth/tags/pull-axp-20150902' into stagingPeter Maydell3-13/+46
cmpbge emulation improvements # gpg: Signature made Wed 02 Sep 2015 20:25:10 BST 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-axp-20150902: target-alpha: Special case cmpbge with zero target-alpha: Rewrite helper_cmpbge using bit tests Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-08-24tcg: Remove tcg_gen_trunc_i64_i32Richard Henderson1-2/+2
Replacing it with tcg_gen_extrl_i64_i32. Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-18target-alpha: Inline hw_retRichard Henderson3-15/+10
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-18target-alpha: Inline call_palRichard Henderson3-18/+24
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-18target-alpha: Use separate TCGv temporaries for the shadow registersRichard Henderson6-103/+134
This avoids having to manually swap them around when swapping to and from PALmode. We simply encode the shadow registers into the translation. The VMStateDescription version changes, because the meaning of "shadow" changes in the save file when in PALmode. It would be possible to fix this, but I don't think it's worth the effort. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-18target-alpha: Special case cmpbge with zeroRichard Henderson3-1/+21
Knowing the comparator is zero leads to a simpler operation. Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-17target-alpha: Rewrite helper_cmpbge using bit testsRichard Henderson1-13/+26
Not quite as good as using a proper host vector compare, but certainly better than a loop. Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-07-09cpu-exec: Purge all uses of ENV_GET_CPU()Peter Crosthwaite1-1/+1
Remove un-needed usages of ENV_GET_CPU() by converting the APIs to use CPUState pointers and retrieving the env_ptr as minimally needed. Scripted conversion for target-* change: for I in target-*/cpu.h; do sed -i \ 's/\(^int cpu_[^_]*_exec(\)[^ ][^ ]* \*s);$/\1CPUState *cpu);/' \ $I; done Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09cpu: Change cpu_exec_init() arg to cpu, not envPeter Crosthwaite1-1/+1
The callers (most of them in target-foo/cpu.c) to this function all have the cpu pointer handy. Just pass it to avoid an ENV_GET_CPU() from core code (in exec.c). Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Michael Walle <michael@walle.cc> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Anthony Green <green@moxielogic.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09translate-all: Change tb_flush() env argument to cpuPeter Crosthwaite1-1/+1
All of the core-code usages of this API have the cpu pointer handy so pass it in. There are only 3 architecture specific usages (2 of which are commented out) which can just use ENV_GET_CPU() locally to get the cpu pointer. The reduces core code usage of the CPU env, which brings us closer to common-obj'ing these core files. Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09cpu: Add Error argument to cpu_exec_init()Bharata B Rao1-1/+1
Add an Error argument to cpu_exec_init() to let users collect the error. This is in preparation to change the CPU enumeration logic in cpu_exec_init(). With the new enumeration logic, cpu_exec_init() can fail if cpu_index values corresponding to max_cpus have already been handed out. Since all current callers of cpu_exec_init() are from instance_init, use error_abort Error argument to abort in case of an error. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-06-22disas: Remove uses of CPU envPeter Crosthwaite1-1/+1
disas does not need to access the CPU env for any reason. Change the APIs to accept CPU pointers instead. Small change pattern needs to be applied to all target translate.c. This brings us closer to making disas.o a common-obj and less architecture specific in general. Cc: Richard Henderson <rth@twiddle.net> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Michael Walle <michael@walle.cc> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-05-22Revert "target-alpha: Add vector implementation for CMPBGE"Peter Maydell1-37/+0
This reverts commit 32ad48abd74a997220b841e4e913edeb267aa362. Unfortunately the SSE2 code here fails to compile on some versions of gcc: target-alpha/int_helper.c:77:24: error: invalid operands to binary >= (have '__vector(16) unsigned char' and '__vector(16) unsigned char') Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-21target-alpha: Add vector implementation for CMPBGERichard Henderson1-0/+37
While conditionalized on SSE2, it's a "portable" gcc generic vector implementation, which could be enabled on other hosts. Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-21target-alpha: Rewrite helper_zapnotRichard Henderson1-18/+12
This form produces significantly smaller code on x86_64. Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Raise IOV from CVTQLRichard Henderson3-32/+13
Even if an exception isn't taken, the status flags need updating and the result should be written to the destination. Move the body of cvtql out of line, since we now always need a call. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Suppress underflow from CVTTQ if DNZRichard Henderson1-1/+1
I.e. respect flush_inputs_to_zero. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Raise EXC_M_INV properly for fp inputsRichard Henderson3-10/+30
Ignore DNZ if software completion isn't used. Raise INV for denormals in system mode so the OS completion handler sees them. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Disallow literal operand to 1C.30 to 1C.37Richard Henderson1-2/+17
Before 64f45e49 we used to have literal checks for 4 of these 8 opcodes. Confirmed that real hardware doesn't allow them. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Implement WH64ENRichard Henderson1-0/+4
Backward compatible cache insn introduced for EV7. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Fix integer overflow checking insnsRichard Henderson3-70/+56
We need to write the result to the destination register before raising any exception. Thus inline the code for each insn, and check for any exception after we're done. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Fix cvttq vs infRichard Henderson1-1/+1
We should raise INV for infinities as well, not OVR+INE. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Fix cvttq vs large integersRichard Henderson1-5/+5
The range +- 2**63 - 2**64 was returning the wrong truncated result. We also incorrectly signaled overflow for -2**63. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Raise IOV from CVTTQRichard Henderson3-30/+13
Floating-point overflow is a different bit from integer overflow. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Set EXC_M_SWC for exceptions from /S insnsRichard Henderson1-5/+3
Previously forgotten, the kernel needs the software completion bit to know that it needs to emulate software completion qualified insns. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Set fpcr_exc_status even for disabled exceptionsRichard Henderson2-29/+34
The qualifiers can suppress the raising of exceptions, but real hardware still records that the exceptions occurred. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Tidy FPCR representationRichard Henderson5-243/+159
Store the fpcr as the hardware represents it. Convert the softfpu representation of exceptions into the fpcr representation. Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Set PC correctly for floating-point exceptionsRichard Henderson2-1/+10
PC should be one past the faulting insn. Add better commentary for the machine-check exception path. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-18target-alpha: Forget installed round mode after MT_FPCRRichard Henderson1-0/+5
When we use QUAL_RM_D, we copy fpcr_dyn_round to float_status. When we install a new FPCR value, we update fpcr_dyn_round. Reset the status of the cache so that we re-copy for the next fp insn that requires dynamic rounding. Signed-off-by: Richard Henderson <rth@twiddle.net>
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