Commit Graph

40 Commits

Author SHA1 Message Date
Andreas Färber
c658b94f6e cpu: Turn cpu_unassigned_access() into a CPUState hook
Use it for all targets, but be careful not to pass invalid CPUState.
cpu_single_env can be NULL, e.g. on Xen.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28 13:25:13 +02:00
Edgar E. Iglesias
afed260822 microblaze: Ignore non-cpu accesses to unmapped areas
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-03-19 17:34:47 +01:00
Paolo Bonzini
1de7afc984 misc: move include files to include/qemu/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:32:39 +01:00
Paolo Bonzini
022c62cbbc exec: move include files to include/exec/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:31:31 +01:00
Blue Swirl
a8a826a3c3 exec: refactor cpu_restore_state
Refactor common code around calls to cpu_restore_state().

tb_find_pc() has now no external users, make it static.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-12-16 08:35:24 +00:00
Avi Kivity
a8170e5e97 Rename target_phys_addr_t to hwaddr
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>
2012-10-23 08:58:25 -05:00
Blue Swirl
64254eba53 target-microblaze: switch to AREG0 free mode
Add an explicit CPUState parameter instead of relying on AREG0
and switch to AREG0 free mode.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15 17:44:33 +00:00
Blue Swirl
2050396801 Use uintptr_t for various op related functions
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>
2012-04-14 14:23:37 +00:00
Peter A. G. Crosthwaite
dadc1064c3 target-microblaze: added PetaLogix copyright
Microblaze cpu development has been driven and funded by PetaLogix. Added (c)
PetaLogix line accordingly.

Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2012-04-12 09:56:51 +02:00
Andreas Färber
68cee38a9c target-microblaze: Don't overuse CPUState
Scripted conversion:
  sed -i "s/CPUState/CPUMBState/g" target-microblaze/*.[hc]
  sed -i "s/#define CPUMBState/#define CPUState/" target-microblaze/cpu.h

Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-14 22:20:25 +01:00
Edgar E. Iglesias
5818dee572 microblaze: Emulate the hw stackprotector
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2012-01-12 13:54:16 +01:00
Edgar E. Iglesias
48b5e96f0f microblaze: Add support for the clz insn
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2012-01-12 13:54:16 +01:00
Blue Swirl
bccd9ec5f0 softmmu_header: pass CPUState to tlb_fill
Pass CPUState pointer to tlb_fill() instead of architecture local
cpu_single_env hacks.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01 09:31:26 +00:00
Blue Swirl
97b348e7d2 Remove unused is_softmmu parameter from cpu_handle_mmu_fault
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>
2011-08-07 09:32:01 +00:00
Blue Swirl
3e4571724f exec.h cleanup
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>
2011-07-30 09:41:14 +00:00
Blue Swirl
b14ef7c9ab Fix unassigned memory access handling
cea5f9a28f exposed bugs in unassigned memory
access handling. Fix them by always passing CPUState to the handlers.

Reported-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-07-20 21:28:08 +00:00
Blue Swirl
1162c041c1 cpu_loop_exit: avoid using AREG0
Make cpu_loop_exit() take a parameter for CPUState instead of relying
on global env.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26 18:25:13 +00:00
Stefan Weil
618ba8e6a1 Remove unused function parameter from cpu_restore_state
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>
2011-04-20 10:37:03 +02:00
Aurelien Jarno
211315fb5e softfloat: rename float*_eq() into float*_eq_quiet()
float*_eq functions have a different semantics than other comparison
functions. Fix that by first renaming float*_quiet() into float*_eq_quiet().

Note that it is purely mechanical, and the behaviour should be unchanged.
That said it clearly highlight problems due to this different semantics,
they are fixed later in this patch series.

Cc: Alexander Graf <agraf@suse.de>
Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-04-17 20:32:14 +02:00
Edgar E. Iglesias
6d76d23e82 microblaze: Add partial decoding of stream insns
Based on a patch from: Alejandro Cabrera <aldaya@gmail.com>

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-04-12 00:48:33 +02:00
Edgar E. Iglesias
5d0bb8239d microblaze: cleanup helper_addkc
Remove unused addition and rename to helper_carry.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-23 03:52:20 +01:00
Edgar E. Iglesias
e0a42ebc08 microblaze: Improve subkc
Move code from the helper into the translator. The remaining
helper parts can reuse helper_addkc, making it possible to
remove helper_subkc entirely.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-22 12:39:16 +01:00
Edgar E. Iglesias
40cbf5b709 microblaze: Improve addkc
* Optimize handling when carry is not updated.
* Optimize handling for adds with nop semantics.
* Move code from helper_addkc to the translator making
  helper_addkc PURE and CONST.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-22 12:02:53 +01:00
Peter Maydell
185698715d softfloat: Rename float*_is_nan() functions to float*_is_quiet_nan()
The softfloat functions float*_is_nan() were badly misnamed,
because they return true only for quiet NaNs, not for all NaNs.
Rename them to float*_is_quiet_nan() to more accurately reflect
what they do.

This change was produced by:
 perl -p -i -e 's/_is_nan/_is_quiet_nan/g' $(git grep -l is_nan)
(with the results manually checked.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Nathan Froyd <froydnj@codesourcery.com>
Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-02 11:15:25 +01:00
Edgar E. Iglesias
ef9d48da59 microblaze: Add support for fcmp.un
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-09-09 22:05:48 +02:00
Edgar E. Iglesias
97694c57d7 microblaze: Add basic FPU emulation
Missing:
* fcmp.un insn
* Denormalized exceptions
* Exception model is not accurate

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-09-09 10:20:17 +02:00
Paul Brook
3c7b48b74c Target specific usermode cleanup
Disable various target specific code that is only relevant to system emulation.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12 18:44:24 +00:00
Edgar E. Iglesias
e1aa325409 microblaze: Dont segfault when singlestepping first insn.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-02-20 14:03:14 +01:00
Michal Simek
4c24aa0a69 microblaze: Print content of EAR register
I need to see EAR register in output because I need to parse irqsoff problem.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-12-16 12:54:26 +01:00
Edgar E. Iglesias
17c52a43b4 microblaze: Update debug logs.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-12-16 12:52:56 +01:00
Edgar E. Iglesias
95b279de95 microblaze: Restore env when raising unmapped bus access.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-11-12 02:14:45 +01:00
Anthony Liguori
c227f0995e Revert "Get rid of _t suffix"
In the very least, a change like this requires discussion on the list.

The naming convention is goofy and it causes a massive merge problem.  Something
like this _must_ be presented on the list first so people can provide input
and cope with it.

This reverts commit 99a0949b72.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-01 16:12:16 -05:00
malc
99a0949b72 Get rid of _t suffix
Some not so obvious bits, slirp and Xen were left alone for the time
being.

Signed-off-by: malc <av1474@comtv.ru>
2009-10-01 22:45:02 +04:00
Edgar E. Iglesias
97f90cbfe8 microblaze: HW Exception fixes.
* Correct PVR checks for masking off individual exceptions.
* Correct FPU exception code.
* Set EAR on unaligned and unassigned exceptions.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-11 10:27:38 +02:00
Edgar E. Iglesias
3aa8098843 microblaze: Compute masks for alignment checks at translation time.
Thanks to Blue Swirl for reporting.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 22:28:21 +02:00
Edgar E. Iglesias
faed1c2a23 microblaze: Trap on bus accesses to unmapped areas.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 13:25:09 +02:00
Edgar E. Iglesias
968a40f6fa microblaze: Trap on unaligned data accesses.
Untested...

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 12:59:46 +02:00
Edgar E. Iglesias
821ebb33e4 microblaze: Trap on divizions by zero.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 12:52:01 +02:00
Blue Swirl
8167ee8839 Update to a hopefully more future proof FSF address
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-16 20:47:01 +00:00
Edgar E. Iglesias
4acb54baa6 microblaze: Add translation routines.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:11 +02:00