Commit Graph

227 Commits

Author SHA1 Message Date
Blue Swirl 449c0d70b6 target-s390x: avoid AREG0 for FPU helpers
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>
2012-09-10 13:38:32 +02:00
Blue Swirl e72ca652aa target-s390x: split FPU ops
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>
2012-09-10 13:38:32 +02:00
Blue Swirl 71547a3bf3 qemu-log: use LOG_UNIMP for some target CPU cases
Use LOG_UNIMP for some target CPU cases.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Acked-by: Alexander Graf <agraf@suse.de>
2012-06-21 18:45:22 +00:00
Andreas Färber a4e3ad19d2 target-s390x: Don't overuse CPUState
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>
2012-03-14 22:20:25 +01:00
Lluís Vilanova 3208afbe04 Move helpers.h to helper.h
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>
2012-03-05 19:51:18 +01:00
Stefan Weil 45133b74ba target-s390x: Clean includes
The change in cpu.h is needed when HOST_LONG_BITS is defined in qemu-common.h.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2012-02-28 22:33:42 +01:00
Alexander Graf 27b5979d9d s390x: add ldeb instruction
While running perl, we encountered the ldeb instruction to be used,
so we implement it :).

Signed-off-by: Alexander Graf <agraf@suse.de>
2011-11-14 17:47:26 +01:00
Stefan Weil 3feaca9e88 Fix conversions from pointer to tcg_target_long
tcg_gen_exit_tb takes a parameter of type tcg_target_long,
so the type casts of pointer to long should be replaced by
type casts of pointer to tcg_target_long.

These changes are needed for build environments where
sizeof(long) != sizeof(void *), especially for w64.

See 4b4a72e556 which fixed the
same issue for the other targets.

Cc: Alexander Graf <agraf@suse.de>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Guan Xuetao<gxt@mprc.pku.edu.cn>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-21 15:32:21 +00:00
Blue Swirl 2b41f10e18 Remove exec-all.h include directives
Most exec-all.h include directives are now useless, remove them.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26 18:25:35 +00:00
Alexander Graf e1b45cca62 s390x: implement lrvgr
The LRVGR instruction was missing. Implement it, so everyone's happy.

Reported-by: Balazs Kutil <bkutil@novell.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-03 13:34:02 +02:00
Alexander Graf 87b0b70513 s390x: free tmp explicitly in every opcode for disas_a5()
The disas_a5() function provided a TCG tmp variable which was populated
by the respective opcode implementations, but freed at the end of the
function in generic code.

That makes it really hard for code review, so let's move the freeing
to the same scope as the actual allocation.

Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-03 13:34:02 +02:00
Stefan Weil 2497a67fed target-s390x: Add missing tcg_temp_free_i32()
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-03 13:34:02 +02:00
Stefan Weil bbf9f3b4d4 target-s390x: Add missing tcg_temp_free_i64() in disas_s390_insn(), opc == 0x90
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-03 13:34:02 +02:00
Stefan Weil 225b6af7cd target-s390x: Add missing tcg_temp_free_i64() in disas_s390_insn(), opc == 0x8e
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-03 13:34:02 +02:00
Stefan Weil e32a18320a target-s390x: Add missing tcg_temp_free_i64() in disas_b2()
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-03 13:34:01 +02:00
Stefan Weil 21de37a778 target-s390x: Add missing tcg_temp_free_i64() in do_mh()
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-03 13:34:01 +02:00
Stefan Weil a825aefbc2 target-s390x: Add missing tcg_temp_free_i64() in gen_jcc()
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-03 13:34:01 +02:00
Stefan Weil 640239b26d target-s390x: Fix duplicate call of tcg_temp_new_i64
tmp2 = tcg_temp_new_i64() is already executed unconditionally,
so there is no need to call it a second time for 64 bit hosts.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-03 13:34:01 +02:00
Stefan Weil be82ee2aca target-s390x: Fix wrong argument in call of tcg_gen_shl_i64()
tcg_gen_shl_i64 needs a 3rd argument of type TCGv_i64.
Set tmp4 so it can be used here.

v2:
Don't call tcg_const_i64() inside of the loop
because it creates additional code.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-03 13:34:01 +02:00
Alexander Graf e023e832d0 s390x: translate engine for s390x CPU
This is the main meat part of the patch set. It implements emulation for an
s390x CPU.

The code does all the optimizations that are common for TCG code:

 - direct branches
 - cc optimization
 - unrolling of simple microcode loops

I'm still open for suggestions on speedups of course :).

Signed-off-by: Alexander Graf <agraf@suse.de>
2011-05-20 17:35:12 +02:00
Alexander Graf d5a439645a s390x: helper functions for system emulation
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>
2011-05-20 17:35:12 +02:00
Stefan Weil e87b7cb0f0 Remove unused function parameters from gen_pc_load and rename the function
Function gen_pc_load was introduced in commit
d2856f1ad4.
The only reason for parameter searched_pc was
a debug statement in target-i386/translate.c.

Parameter puc was needed by target-sparc until
commit d7da2a1040.

Remove searched_pc from the debug statement and remove both
parameters from the parameter list of gen_pc_load.

As the function name gen_pc_load was also misleading,
it is now called restore_state_to_opc. This new name
was suggested by Peter Maydell, thanks.

v2: Remove last parameter, too, and rename the function.

v3: Fix [] typo in target-arm/translate.c.
    Fix wrong SHA1 object name in commit message (copy+paste error).

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 10:33:59 +02:00
Alexander Graf bcec36eaa0 s390x: Prepare cpu.h for emulation
We need to add some more logic to the CPU description to leverage emulation
of an s390x CPU. This patch adds all the required helpers, fields in CPUState
and constant definitions required for user and system emulation.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-04-18 20:51:55 +02:00
Alexander Graf 6c33286ad3 s390: compile fixes
The s390 target doesn't compile out of the box anymore. This patch fixes all
the obvious glitches that got introduced in the last few weeks.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-26 00:29:49 +01:00
Stefan Weil 9a78eead0c target-xxx: Use fprintf_function (format checking)
fprintf_function uses format checking with GCC_FMT_ATTR.

Format errors were fixed in
* target-i386/helper.c
* target-mips/translate.c
* target-ppc/translate.c

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-30 08:01:59 +00:00
Blue Swirl 70539e1850 Update to a hopefully more future proof FSF address
See also 8167ee8839,
530e7615ce and
fad6cb1a56.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-07 15:48:43 +00:00
Alexander Graf 10ec51174c S/390 CPU fake emulation
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>
2009-12-05 17:36:00 +01:00