kqemu introduces a number of restrictions on the i386 target. The worst is that
it prevents large memory from working in the default build.
Furthermore, kqemu is fundamentally flawed in a number of ways. It relies on
the TSC as a time source which will not be reliable on a multiple processor
system in userspace. Since most modern processors are multicore, this severely
limits the utility of kqemu.
kvm is a viable alternative for people looking to accelerate qemu and has the
benefit of being supported by the upstream Linux kernel. If someone can
implement work arounds to remove the restrictions introduced by kqemu, I'm
happy to avoid and/or revert this patch.
N.B. kqemu will still function in the 0.11 series but this patch removes it from
the 0.12 series.
Paul, please Ack or Nack this patch.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This replaces a compile time option for some targets and adds
this feature to targets which did not have a compile time option.
Add monitor command to enable or disable single step mode.
Modify monitor command "info status" to display single step mode.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7004 c046a42c-6fe2-441c-8c8c-71466251a162
This patch removes the GenOpFunc typedefs from exec-all.h, which are no
longer needed, now that dyngen has been removed.
Signed-off-by: Stuart Brady <stuart.brady@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6564 c046a42c-6fe2-441c-8c8c-71466251a162
Introduce noreturn attribute and attach it to cpu_loop_exit as well as
interrupt/exception helpers for i386. This avoids a bunch of gcc4
warnings.
[ Note that this patch comes with a workaround to include qemu-common.h
even in cases where is currently causes conflicts with dyngen-exec.h.
I've been told that these conflicts will get resolved in the future
(/me will try to have a look as well - as time permits). ]
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6303 c046a42c-6fe2-441c-8c8c-71466251a162
According to $GCC/gcc/config/rs6000/rs6000-c.c _ARCH_PPC is the
ubiquitous define which should be used to test whether gcc targets
PowerPC, on 64bit platforms _ARCH_PPC64 will be also defined.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6301 c046a42c-6fe2-441c-8c8c-71466251a162
The attached patch updates the FSF address in the GPL/LGPL boilerplate
in most GPL/LGPLed files, and also in COPYING.LIB.
Signed-off-by: Stuart Brady <stuart.brady@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6162 c046a42c-6fe2-441c-8c8c-71466251a162
this patch removes some now unused things after dyngen removal.
1. dyngen-exec.h: op_param, op _jmp and some associated macros
are now unused;
2. Makefile.target: tcg-dyngen is not needed anymore
2. tcg/tcg-op.h, tcg/tcg-opc.h: gen-op.h is dead
3. tcg.c:
- INDEX_op_end is now the first op
- CONFIG_DYNGEN_OP is never defined
4. tcg.h: dyngen_op not needed anymore
5. exec-all.h: remove some ASM macros.
Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5922 c046a42c-6fe2-441c-8c8c-71466251a162
Calling the clear cache syscall directly generates an illegal instruction
on some (armv4) kernels.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5843 c046a42c-6fe2-441c-8c8c-71466251a162
All archs use the same cpu_loop_exit, so move the prototype in a common
header. i386 was carrying a __hidden attribute, but that was empty for
this arch anyway.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5820 c046a42c-6fe2-441c-8c8c-71466251a162
This patch allows to hook into the delivery of EXCP_DEBUG so that other
use beyond guest debugging becomes possible.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5745 c046a42c-6fe2-441c-8c8c-71466251a162
With this container_of can actually be used without causing build errors.
Reformat container_of.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5234 c046a42c-6fe2-441c-8c8c-71466251a162
Avoids nasty warnings about flush_icache_range from gcc4 and inability
to compile [cpu-]exec.c with gcc3 and -O, also the function is much
too large to be candidate for inlining anyway.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4974 c046a42c-6fe2-441c-8c8c-71466251a162
ppc64.ld from Heikki Lindholm's patch
http://marc.info/?l=qemu-devel&m=114086179024634&w=2
Issues:
x86_64 tripple faults shortly after decompressing the kernel
No immediate versions of most 64 bit operations
More...
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4932 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix typo in aliased div2
* "Optimize" aliased div2/divu2
* Fix two remaining branch retranslation problems
(Kudos to Andrzej Zaborowski)
* Rework goto_tb and set_jmp_target1
* Use correct size when flushing icache
* Use correct register selection for ORI
(Was harmless since in both cases srcreg was equal to dstreg)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4691 c046a42c-6fe2-441c-8c8c-71466251a162
Updated from previous version to use the tcg prologue/epilogue mechanism, may be slower than direct call.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4500 c046a42c-6fe2-441c-8c8c-71466251a162
