Age | Commit message (Collapse) | Author |
|
For some workloads with tight loops this ~doubles the emulation
speed.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
|
|
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>
|
|
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>
|
|
According to ISO/IEC 9899:1999 7.19.6.1,
the correct length modifier for ptrdiff_t is 't', not 'z'.
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
|
|
Missing:
* fcmp.un insn
* Denormalized exceptions
* Exception model is not accurate
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
|
|
Speed up reg + reg addressing mode when any of the regs is r0.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
|
|
Use setcond for evaluating the condition for branches.
In the future, we could do better for branches without
delay slots.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
|
|
Slight improvements of conditional branches with small
immediate offsets.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
|
|
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
|
|
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
|
|
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
|
|
189 was allocated in upstream binutils.
0xbaab was the old temporary value. Still used by some tools and the
linux kernel.
I've seen 115 in older gdb versions, but lets ignore that one.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Value stored is never read.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
|
|
QEMU uses a fixed page size for the CPU TLB. If the guest uses large
pages then we effectively split these into multiple smaller pages, and
populate the corresponding TLB entries on demand.
When the guest invalidates the TLB by virtual address we must invalidate
all entries covered by the large page. However the address used to
invalidate the entry may not be present in the QEMU TLB, so we do not
know which regions to clear.
Implementing a full vaiable size TLB is hard and slow, so just keep a
simple address/mask pair to record which addresses may have been mapped by
large pages. If the guest invalidates this region then flush the
whole TLB.
Signed-off-by: Paul Brook <paul@codesourcery.com>
|
|
Disable various target specific code that is only relevant to system emulation.
Signed-off-by: Paul Brook <paul@codesourcery.com>
|
|
cpu_get_phys_page_debug makes no sense for userspace emulation, so remove it.
Signed-off-by: Paul Brook <paul@codesourcery.com>
|
|
Removes a set of ifdefs from exec.c.
Introduce TARGET_VIRT_ADDR_SPACE_BITS for all targets other
than Alpha. This will be used for page_find_alloc, which is
supposed to be using virtual addresses in the first place.
Signed-off-by: Richard Henderson <rth@twiddle.net>
|
|
brk insns while in user mode raise priv insn exceptions.
This commit makes gdbserver work on linux guests.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
|
|
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
|
|
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>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Initialize synthesis config registers at reset to cope with the new
cpu_reset sequences.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
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 99a0949b720a0936da2052cb9a46db04ffc6db29.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
|
|
Some not so obvious bits, slirp and Xen were left alone for the time
being.
Signed-off-by: malc <av1474@comtv.ru>
|
|
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
|
|
Problem: Our file sys-queue.h is a copy of the BSD file, but there are
some additions and it's not entirely compatible. Because of that, there have
been conflicts with system headers on BSD systems. Some hacks have been
introduced in the commits 15cc9235840a22c289edbe064a9b3c19c5f49896,
f40d753718c72693c5f520f0d9899f6e50395e94,
96555a96d724016e13190b28cffa3bc929ac60dc and
3990d09adf4463eca200ad964cc55643c33feb50 but the fixes were fragile.
Solution: Avoid the conflict entirely by renaming the functions and the
file. Revert the previous hacks.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
|
|
If PVR settings enable illegal insn trap, trap when QEMU finds an
insn it knows nothing about.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
The microblaze gives MMU faults priority. For stores we still
have a flaw that the value leaks to memory in the case of an
unaligned exception.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
* 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>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Thanks to Blue Swirl for reporting.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
The microblaze MMU can be synthesized in different configurations.
Have the MMU model show more respect to the chosen configuration.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Untested...
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Raise illegal instruction exceptions when executing instructions that
require units not available on the particulare microblaze configuration.
Also trap priviliege violations made by userspace.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
|
handle_cpu_signal is very nearly copy-paste code for each target, with a
few minor variations. This patch sets up appropriate defaults for a
generic handle_cpu_signal and provides overrides for particular targets
that did things differently. Fixing things like the persistent (XXX:
use sigsetjmp) should now become somewhat easier.
Previous comments on this patch suggest that the "activate soft MMU for
this block" comments refer to defunct functionality. I have removed
such blocks for the appropriate targets in this patch.
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
|