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# Date Author Comment
732f9e89 07/23/2013 05:28 pm Alexander Graf

linux-user: fix segmentation fault passing with h2g(x) != x

When forwarding a segmentation fault into the guest process, we were passing
the host's address directly into the guest process's signal descriptor.

That obviously confused the guest process, since it didn't know what to make...
51455c59 07/10/2013 06:54 pm Anthony Liguori

Merge remote-tracking branch 'afaerber/tags/qom-cpu-for-anthony' into staging

QOM CPUState refactorings

  • Fix for OpenRISCCPU subclasses
  • Fix for gdbstub CPU selection
  • Move linux-user CPU functions into new header
  • CPUState part 10 refactoring: first_cpu, next_cpu, cpu_single_env et al....
4917cf44 07/09/2013 10:20 pm Andreas Färber

cpu: Replace cpu_single_env with CPUState current_cpu

Move it to qom/cpu.h.

Signed-off-by: Andreas Färber <>
023b0ae3 07/05/2013 03:45 pm Peter Maydell

user-exec.c: Set is_write correctly in the ARM cpu_signal_handler()

In the ARM implementation of cpu_signal_handler(), set is_write
correctly using the FSR value which the kernel passes us in the
error_code field of uc_mcontext. Since the WnR bit of the FSR was...
f129061c 06/12/2013 06:20 pm Claudio Fontana

user-exec.c: aarch64 initial implementation of cpu_signal_handler

Signed-off-by: Claudio Fontana <>
Reviewed-by: Richard Henderson <>
Reviewed-by: Peter Maydell <>
Message-id: ...
6ab7e546 02/23/2013 06:11 pm Peter Maydell

Replace all setjmp()/longjmp() with sigsetjmp()/siglongjmp()

The setjmp() function doesn't specify whether signal masks are saved and
restored; on Linux they are not, but on BSD (including MacOSX) they are.
We want to have consistent behaviour across platforms, so we should...
27dd7730 12/20/2012 01:15 am Anthony Liguori

Merge remote-tracking branch 'bonzini/header-dirs' into staging

  • bonzini/header-dirs: (45 commits)
    janitor: move remaining public headers to include/
    hw: move executable format header files to hw/
    fpu: move public header file to include/fpu
    softmmu: move remaining include files to include/ subdirectories...
76cad711 12/19/2012 09:29 am Paolo Bonzini

build: kill libdis, move disassemblers to disas/

Signed-off-by: Paolo Bonzini <>
e12cdb1b 12/18/2012 06:21 pm John Spencer

fix build error on ARM due to wrong glibc check

the test for glibc < 2 "succeeds" wrongly for any non-glibc C library,
and breaks the build on musl libc.
we must first test if GLIBC is defined at all, before using it
unconditionally.

Signed-off-by: John Spencer <>...
a8a826a3 12/16/2012 10:35 am Blue Swirl

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 <>
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....
1846ec2c 08/09/2012 09:34 pm Blue Swirl

user: fix accidental AREG0 use

Global register AREG0 was always assumed to be usable in user-exec.c,
but this is incorrect for several targets.

Fix with #ifdeffery and by using other variables.

Signed-off-by: Blue Swirl <>
02d2bd5d 08/01/2012 04:54 pm Richard W.M. Jones

Replace 'struct siginfo' with 'siginfo_t'.

glibc 2.16 will remove the undocumented definition of 'struct siginfo'
from <bits/siginfo.h>.

This change is already present in glibc 2.15.90, so qemu compilation
of certain targets (eg. cris-user) breaks.

This struct was always typedef'd to be the same as 'siginfo_t' which...
77b2bc2c 06/28/2012 11:28 pm Blue Swirl

x86: avoid AREG0 for exceptions

Add an explicit CPUX86State parameter instead of relying on AREG0.

Merge raise_exception_env() to raise_exception(), likewise with
raise_exception_err_env() and raise_exception_err().

Introduce cpu_svm_check_intercept_param() and cpu_vmexit()...
c5954819 05/08/2012 07:15 pm Peter Maydell

user-exec.c: Don't assert on segfaults for non-valid addresses

h2g() will assert if passed an address that's not a valid guest address,
so handle_cpu_signal() needs to check before passing "data address
which caused a segfault" to it, since for a misbehaving guest...
20503968 04/14/2012 05:23 pm Blue Swirl

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 <>
Signed-off-by: Blue Swirl <>
9349b4f9 03/14/2012 11:20 pm Andreas Färber

Rename CPUState -> CPUArchState

Scripted conversion:
for file in .[hc] hw/.[hc] hw/kvm/*.[hc] linux-user/*.[hc] linux-user/m68k/*.[hc] bsd-user/*.[hc] darwin-user/*.[hc] tcg/*/*.[hc] target-*/cpu.h; do
sed -i "s/CPUState/CPUArchState/g" $file
done...
97b348e7 08/07/2011 12:32 pm Blue Swirl

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 <>...
3e457172 07/30/2011 12:41 pm Blue Swirl

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...
1162c041 06/26/2011 09:25 pm Blue Swirl

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 <>
42a623c7 05/28/2011 09:26 am Blue Swirl

Move user emulator stuff from cpu-exec.c to user-exec.c

Simplify cpu-exec.c by refactoring.

Signed-off-by: Blue Swirl <>