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# Date Author Comment
f713d6ad 10/10/2013 11:19 pm Richard Henderson

tcg: Add qemu_ld_st_i32/64

Step two in the transition, adding the new ldst opcodes. Keep the old
opcodes around until all backends support the new opcodes.

Signed-off-by: Richard Henderson <>

03271524 09/02/2013 07:08 pm Richard Henderson

tcg: Add muluh and mulsh opcodes

Use them in places where mulu2 and muls2 are used.
Optimize mulx2 with dead low part to mulxh.

Reviewed-by: Aurelien Jarno <>
Signed-off-by: Richard Henderson <>

b93949ef 09/02/2013 07:08 pm Richard Henderson

tcg: Change flush_icache_range arguments to uintptr_t

Reviewed-by: Aurelien Jarno <>
Signed-off-by: Richard Henderson <>

a4924e8b 04/05/2013 09:35 pm Richard Henderson

tcg-s390: Properly allocate a stack frame.

Set TCG_TARGET_CALL_STACK_OFFSET properly for the abi. Allocate the
standard TCG_STATIC_CALL_ARGS_SIZE. And while we're at it, allocate
space for CPU_TEMP_BUF_NLONGS.

Signed-off-by: Richard Henderson <>

a01fc30d 04/05/2013 09:35 pm Richard Henderson

tcg-s390: Remove useless preprocessor conditions

We only support 64-bit code generation for s390x.
Don't clutter the code with ifdefs that suggest otherwise.

Signed-off-by: Richard Henderson <>

3790b918 04/05/2013 09:35 pm Richard Henderson

tcg-s390: Implement add2/sub2 opcodes

Signed-off-by: Richard Henderson <>

36017dc6 04/05/2013 09:35 pm Richard Henderson

tcg-s390: Implement mulu2_i64 opcode

Signed-off-by: Richard Henderson <>

96a9f093 04/05/2013 09:35 pm Richard Henderson

tcg-s390: Implement movcond opcodes

Signed-off-by: Richard Henderson <>

d5690ea4 04/05/2013 09:35 pm Richard Henderson

tcg-s390: Implement deposit opcodes

Signed-off-by: Richard Henderson <>

e6a72734 02/23/2013 07:25 pm Richard Henderson

tcg: Make 32-bit multiword operations optional for 64-bit hosts

Signed-off-by: Richard Henderson <>
Signed-off-by: Blue Swirl <>

d7156f7c 02/23/2013 07:25 pm Richard Henderson

tcg: Add 64-bit multiword arithmetic operations

Matching the 32-bit multiword arithmetic that we already have.

Signed-off-by: Blue Swirl <>

4d3203fd 02/23/2013 07:25 pm Richard Henderson

tcg: Add signed multiword multiplication operations

Signed-off-by: Richard Henderson <>
Signed-off-by: Blue Swirl <>

cb9c377f 12/19/2012 09:31 am Paolo Bonzini

janitor: add guards to headers

Signed-off-by: Paolo Bonzini <>

07e10e5d 10/12/2012 02:27 pm Peter Maydell

tcg: Remove TCG_TARGET_HAS_GUEST_BASE define

GUEST_BASE support is now supported by all TCG backends, and is
now mandatory. Drop the now-pointless TCG_TARGET_HAS_GUEST_BASE
define (set by every backend) and the error if it is unset.

Signed-off-by: Peter Maydell <>...

ffc5ea09 09/21/2012 08:53 pm Richard Henderson

tcg: Introduce movcond

Implemented with setcond if the target does not provide
the optional opcode.

Signed-off-by: Richard Henderson <>
Signed-off-by: Aurelien Jarno <>

89c33337 09/15/2012 08:51 pm Blue Swirl

Remove unused CONFIG_TCG_PASS_AREG0 and dead code

Now that CONFIG_TCG_PASS_AREG0 is enabled for all targets,
remove dead code and support for !CONFIG_TCG_PASS_AREG0 case.

Remove dyngen-exec.h and all references to it. Although included by
hw/spapr_hcall.c, it does not seem to use it....

dba4f1bc 03/03/2012 08:10 pm Stefan Weil

w64: Change data type of parameters for flush_icache_range

The TCG targets i386 and tci needed a change of the function
prototype for w64.

This change is currently not needed for the other TCG targets,
but it can be applied to avoid code differences.

Cc: Blue Swirl <>...

840f5861 10/01/2011 09:11 am Stefan Weil

tcg: Don't declare TCG_TARGET_REG_BITS in tcg-target.h

It is now declared for all tcg targets in tcg.h,
so the tcg target specific declarations are redundant.

Signed-off-by: Stefan Weil <>
Signed-off-by: Blue Swirl <>

25c4d9cc 08/21/2011 09:52 pm Richard Henderson

tcg: Always define all of the TCGOpcode enum members.

By always defining these symbols, we can eliminate a lot of ifdefs.

To allow this to be checked reliably, the semantics of the
TCG_TARGET_HAS_* macros must be changed from def/undef to true/false.
This allows even more ifdefs to be removed, converting them into...

48bb3750 06/30/2010 12:07 am Richard Henderson

tcg-s390: new TCG Target

Original patch from Ulrich Hecht, further work from Alexander Graf
and Richard Henderson.

Cc: Ulrich Hecht <>
Cc: Alexander Graf <>
Signed-off-by: Richard Henderson <>
Signed-off-by: Aurelien Jarno <>

2bece2c8 06/16/2010 12:29 pm Richard Henderson

tcg: Optionally sign-extend 32-bit arguments for 64-bit hosts.

Some hosts (amd64, ia64) have an ABI that ignores the high bits
of the 64-bit register when passing 32-bit arguments. Others
require the value to be properly sign-extended for the type.
I.e. "int32_t" must be sign-extended and "uint32_t" must be...

1bcaae66 06/11/2010 09:46 am Richard Henderson

tcg-s390: Icache flush is a no-op.

Before gcc 4.2, builtin_clear_cache doesn't exist, and
afterward the gcc s390 backend implements it as nothing.

Signed-off-by: Richard Henderson <>
Signed-off-by: Aurelien Jarno <>

32d98fbd 03/26/2010 10:52 pm Richard Henderson

tcg: Allow target-specific implementation of NOR.

Signed-off-by: Richard Henderson <>
Signed-off-by: Aurelien Jarno <>

9940a96b 03/26/2010 10:44 pm Richard Henderson

tcg: Allow target-specific implementation of NAND.

Signed-off-by: Richard Henderson <>
Signed-off-by: Aurelien Jarno <>

8d625cf1 03/26/2010 10:42 pm Richard Henderson

tcg: Allow target-specific implementation of EQV.

Signed-off-by: Richard Henderson <>
Signed-off-by: Aurelien Jarno <>

a63b5829 03/26/2010 09:48 pm Paolo Bonzini

remove remaining occurrences AREG[1-9] and TCG_AREG[1-9]

Signed-off-by: Paolo Bonzini <>
Signed-off-by: Aurelien Jarno <>

36828256 02/20/2010 10:35 am Richard Henderson

tcg: Add comments for all optional instructions not implemented.

Signed-off-by: Richard Henderson <>
Signed-off-by: Blue Swirl <>

2827822e 12/05/2009 06:36 pm Alexander Graf

S/390 fake TCG implementation

Qemu won't let us run a KVM target without having host TCG support. Well, for
now we don't have any so let's implement a fake target that only stubs out
everything.

I tried to keep the patch as close to Uli's source as possible, so whenever...