Commit Graph

13276 Commits

Author SHA1 Message Date
Aurelien Jarno f6a7d92aed softfloat: add float{x80,128}_maybe_silence_nan()
Add float{x80,128}_maybe_silence_nan() functions, they will be need by
propagateFloat{x80,128}NaN().

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-06 16:29:23 +01:00
Aurelien Jarno 93ae1c6fea softfloat: fix float{32,64}_maybe_silence_nan() for MIPS
On targets that define sNaN with the sNaN bit as one, simply clearing
this bit may correspond to an infinite value.

Convert it to a default NaN if SNAN_BIT_IS_ONE, as it corresponds to
the MIPS implementation, the only emulated CPU with SNAN_BIT_IS_ONE.
When other CPU of this type are added, this might be updated to include
more cases.

Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-06 16:29:17 +01:00
Aurelien Jarno d735d695e7 softfloat: rename *IsNaN variables to *IsQuietNaN
Similarly to what has been done in commit
185698715d rename the misnamed *IsNaN
variables into *IsQuietNaN.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-06 16:29:11 +01:00
Aurelien Jarno 34d2386198 softfloat: remove HPPA specific code
We don't have any HPPA target, so let's remove HPPA specific code. It
can be re-added when someone adds an HPPA target.

This has been blessed by Stuart Brady <sdb@zubnet.me.uk>, author of the
target-hppa fork.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-06 16:29:05 +01:00
Aurelien Jarno 82b323cd29 target-ppc: use float32_is_any_nan()
Use the new function float32_is_any_nan() instead of
float32_is_quiet_nan() || float32_is_signaling_nan().

Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-06 16:12:14 +01:00
Aurelien Jarno 3eb28bbd47 target-ppc: fix default qNaN
On PPC the default qNaN doesn't have the sign bit set.

Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-06 16:10:54 +01:00
Aurelien Jarno dd94ad96e5 target-ppc: remove PRECISE_EMULATION define
The PRECISE_EMULATION is "hardcoded" to one in target-ppc/exec.h and not
something easily tunable. Remove it and non-precise emulation code as
it doesn't make a noticeable difference in speed. People wanting speed
improvement should use softfloat-native instead.

Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-06 16:10:48 +01:00
Edgar E. Iglesias 23979dc541 microblaze: Use more TB chaining
For some workloads with tight loops this ~doubles the emulation
speed.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2011-01-05 02:23:09 +01:00
Aurelien Jarno 92d675d1c1 cirrus_vga: fix division by 0 for color expansion rop
Commit d85d0d3883 introduces a regression
with Windows ME that leads to a division by 0 and a crash.

It uses the color expansion rop with the source pitch set to 0. This is
something allowed, as the manual explicitely says "When the source of
color-expand data is display memory, the source pitch is ignored.".

This patch fixes this regression by computing sx, sy and others
variables only if they are going to be used later, that is for a plain
copy ROP. It basically consists in moving code.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-04 21:58:24 +01:00
Aurelien Jarno 9ae19b657e Fix curses on big endian hosts
On big endian hosts, the curses interface is unusable: the emulated
graphic card only displays garbage, while the monitor interface displays
nothing (or rather only spaces).

The curses interface is waiting for data in native endianness, so
console_write_ch() should not do any conversion. The conversion should
be done when reading the video buffer in hw/vga.c. I supposed this
buffer is in little endian mode, though it's not impossible that the
data is actually in guest endianness. I currently have no big endian
guest to way (they all switch to graphic mode immediately).

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-04 21:58:24 +01:00
Michael Walle 8a7d0890ac noaudio: correctly account acquired samples
This will fix the return value of the function which otherwise returns too
many samples because sw->total_hw_samples_acquired isn't correctly
accounted.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: malc <av1474@comtv.ru>
2011-01-04 03:53:47 +03:00
Peter Maydell 011da610ba target-arm: Implement correct NaN propagation rules
Implement the correct NaN propagation rules for ARM targets by
providing an appropriate pickNaN function.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-02 23:59:03 +01:00
Peter Maydell 354f211b1a softfloat: abstract out target-specific NaN propagation rules
IEEE754 doesn't specify precisely what NaN should be returned as
the result of an operation on two input NaNs. This is therefore
target-specific. Abstract out the code in propagateFloat*NaN()
which was implementing the x87 propagation rules, so that it
can be easily replaced on a per-target basis.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-02 23:58:57 +01:00
Peter Maydell 185698715d softfloat: Rename float*_is_nan() functions to float*_is_quiet_nan()
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>
2011-01-02 11:15:25 +01:00
Aurelien Jarno f96a38347a TCG: Improve tb_phys_hash_func()
Most of emulated CPU have instructions aligned on 16 or 32 bits, while
on others GCC tries to align the target jump location. This means that
1/2 or 3/4 of tb_phys_hash entries are never used.

Update the hash function tb_phys_hash_func() to ignore the two lowest
bits of the address. This brings a 6% speed-up when booting a MIPS
image.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-31 22:23:38 +01:00
Aurelien Jarno 8aac08b10b target-arm: fix UMAAL instruction
UMAAL should use unsigned multiply instead of signed.

This patch fixes this issue by handling UMAAL separately from
UMULL/UMLAL/SMULL/SMLAL as these instructions are different
enough. It also explicitly list instructions in case and catch
nonexistent instruction as illegal. Also fixes a few style issues.

This fixes the issues reported in
https://bugs.launchpad.net/qemu/+bug/696015

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-31 22:22:26 +01:00
Mike Pall 6d5c34fa02 Fix translation of unary PPC/SPE instructions (efdneg etc.).
Signed-off-by: Mike Pall <mike-lp10@luajit.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-31 21:17:53 +01:00
Aurelien Jarno 0fcec41eec target-sparc: fix udiv(cc) and sdiv(cc)
Since commit 5a4bb580cd, Xorg crashes on
a Debian Etch image. The commit itself is fine, but it triggers a bug
due to wrong computation of flags for udiv(cc) and sdiv(cc).

This patch only compute cc_src2 for the cc version of udiv/sdiv. It
also moves the update of cc_dst and cc_op to the helper, as it is
faster doing it here when there is already an helper.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-28 18:44:51 +00:00
Aurelien Jarno 818c2e1b97 Merge branch 'spice.v23.pull' of git://anongit.freedesktop.org/spice/qemu
* 'spice.v23.pull' of git://anongit.freedesktop.org/spice/qemu:
  vnc/spice: add set_passwd monitor command.
  vnc: support password expire
  vnc: auth reject cleanup
  spice: add qmp 'query-spice' and hmp 'info spice' commands.
  spice: connection events.
  spice: add qxl device
  spice: add qxl vgabios binary.
2010-12-27 22:59:48 +01:00
Jan Kiszka 4058fd98fd x86: Filter out garbage from segment flags dump
Only bits 8..23 of the segment flags contain valid data, so only dump
those when printing the CPU state.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 22:02:52 +01:00
Luiz Capitulino 5569fd7c38 Fix migrate set speed doc arg
We used to ignore any fractional part in 0.13, but due to recent
changes (started with 9f9b17a4f0)
migrate_set_speed will reject the fractional part.

We don't expect existing clients to be relying on this, but we
need to update the documentation to reflect the change.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 21:43:56 +01:00
Juha Riihimäki 16440c5fa0 target-arm: correct cp15 c1_sys reset value for arm1136 and cortex-a9
Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 21:21:17 +01:00
Mattias Holm 9c486ad6e4 target-arm: correct cp15 c1_sys reset value for cortex-a8
Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 21:21:17 +01:00
Juha Riihimäki c003432809 target-arm: fix vmsav6 access control
Override access control checks (including execute) for mmu translation
table descriptors assigned to manager domains.

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 21:21:16 +01:00
Peter Maydell a5d88f3e03 target-arm: Correct result in saturating cases for VQSHL of s8/16/32
Where VQSHL of a signed 8/16/32 bit value saturated, the result
value was not being calculated correctly (it should be either
the minimum or maximum value for the size of the signed type).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 21:07:24 +01:00
Juha Riihimäki 620d791e34 target-arm: remove pointless else clause in VQSHL of u64
Remove a pointless else clause in the neon_qshl_u64 helper.

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 21:07:16 +01:00
Peter Maydell eb7a3d7964 target-arm: Fix VQSHL of signed 64 bit values by shift counts >= 64
VQSHL of a signed 64 bit non-zero value by a shift count >= 64 should
saturate; return the correct value in this case.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 21:07:10 +01:00
Juha Riihimäki 4c9b70aeca target-arm: Fix VQSHL of signed 64 bit values
Add a missing '-' which meant that we were misinterpreting the shift
argument for VQSHL of 64 bit signed values and treating almost every
shift value as if it were an extremely large right shift.

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 21:07:03 +01:00
Juha Riihimäki def126ce37 target-arm: Fix arguments passed to VQSHL helpers
Correct the arguments passed when generating neon qshl_{u,s}64()
helpers so that we use the correct registers.

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 21:06:55 +01:00
Aurelien Jarno 1a855029af target-arm: fix bug in translation of REVSH
The translation of REVSH shifted the low byte 8 steps left before performing
an 8-bit sign extend, causing this part of the expression to alwas be 0.

Reported-by: Johan Bengtsson <teofrastius@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 19:56:43 +01:00
Aurelien Jarno 5697f6ae41 Fix a missing trailing newline
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27 18:29:20 +01:00
Aurelien Jarno 4cdc1cd137 target-mips: fix host CPU consumption when guest is idle
When the CPU is in wait state, do not wake-up if an interrupt can't be
taken. This avoid host CPU running at 100% if a device (e.g. timer) has
an interrupt line left enabled.

Also factorize code to check if interrupts are enabled in
cpu_mips_hw_interrupts_pending().

Based on a patch from Edgar E. Iglesias <edgar.iglesias@gmail.com>

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-12-27 00:58:06 +01:00
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
Nathan Froyd 9ed5726c04 target-mips: fix translation of MT instructions
The translation of dmt/emt/dvpe/evpe was doing the moral equivalent of:

  int x;
  ...		/* no initialization of x */
  x = f (x);

which confused later bits of TCG rather badly, leading to crashes.

Fix the helpers to only return results (those instructions have no
inputs), and fix the translation code accordingly.

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-22 11:14:10 +01:00
Brad cbb608a5c8 Use mmap() within code_gen_alloc() for OpenBSD.
Signed-off-by: Brad Smith <brad@comstyle.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-21 19:44:54 +00:00
Brad 7ae63a517f Add OpenBSD to ifdef list since it has CLOCK_MONOTONIC.
Signed-off-by: Brad Smith <brad@comstyle.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-21 19:44:42 +00:00
Brad 5f668643dc Add support for OpenBSD to QEMU's tap driver.
Signed-off-by: Brad Smith <brad@comstyle.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-21 19:44:33 +00:00
Aurelien Jarno 4a1e19ae05 tcg-arm: fix __clear_cache() warning
Use __builtin___clear_cache() instead of __clear_cache() to avoid having
to define the function as extern. Fix the following warning:

| In file included from qemu/cpus.c:34:
| qemu/exec-all.h: In function 'tb_set_jmp_target1':
| qemu/exec-all.h:208: error: nested extern declaration of '__clear_cache'
| make[1]: *** [cpus.o] Error 1
| make: *** [subdir-i386-softmmu] Error 2

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-21 19:32:49 +01:00
Stefan Weil fcd61af663 qdev: sysbus_get_default must not return a NULL pointer (fix regression)
Every system should have some sort of main system bus,
so sysbus_get_default should always return a valid bus.

Without this patch, at least mipssim and malta no longer
start but raise a null pointer access exception (caused by
commit ec990eb622).

Cc: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-21 18:28:19 +01:00
Bob Breuer e0087e6185 sparc32: ledma extra registers need tracing too
Also trace the extra registers, and update the comments with new
info from Artyom Tarasenko.

Signed-off-by: Bob Breuer <breuerr@mc.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-20 21:08:07 +00:00
Andreas Färber ac6c41204f target-i386: Fix accidental use of SoftFloat uint64 type
softfloat.h's uint64 type has least-width semantics.
Use uint64_t instead since that is used in helpers.

v4:
* Summary change.

v3:
* Split off.

Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Acked-by: Huang Ying <ying.huang@intel.com>
Acked-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-20 21:03:19 +00:00
Andreas Färber c910cf96dc wdt_ib700: Fix accidental use of SoftFloat int64 type
softfloat.h's int64 type has least-width semantics.
Since we're assigning an int64_t, use plain int64_t.

v4:
* Summary change.

v3:
* Split off.

Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Acked-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-20 21:03:01 +00:00
Andreas Färber f5095c639f apic: Fix accidental use of SoftFloat uint32 type
softfloat.h's uint32 type has least-width semantics.
Surrounding code uses uint32_t, so use uint32_t here, too.

v4:
* Summary change.

v3:
* Split off.

Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-20 21:02:57 +00:00
Blue Swirl 4fd37a98d1 Avoid a warning from OpenBSD linker
Avoid the warning below by using snprintf:
../libhw64/vl.o(.text+0x78d4): In function `get_boot_devices_list':
/src/qemu/vl.c:763: warning: sprintf() is often misused, please use snprintf()

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-19 14:05:43 +00:00
Blue Swirl d41160a3e6 Sparc: implement monitor command 'info tlb'
Use existing dump_mmu() to implement monitor command 'info tlb'.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-19 13:42:56 +00:00
Blue Swirl cdfe17df88 ahci: delete write-only variables (v2)
Avoid these warnings with GCC 4.6.0:
/src/qemu/hw/ide/ahci.c: In function 'ahci_reset_port':
/src/qemu/hw/ide/ahci.c:810:14: error: variable 'tfd' set but not used [-Werror=unused-but-set-variable]
/src/qemu/hw/ide/ahci.c: In function 'handle_cmd':
/src/qemu/hw/ide/ahci.c:1103:19: error: variable 'pr' set but not used [-Werror=unused-but-set-variable]

In the tfd variable case, fix the logic also.

CC: Alexander Graf <agraf@suse.de>
CC: Kevin Wolf <kwolf@redhat.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-19 10:43:09 +00:00
Blue Swirl 6a0ee36a47 vga: Declare as little endian
This patch replaces explicit bswaps with endianness hints to the
mmio layer.

CC: Alexander Graf <agraf@suse.de>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-19 10:04:04 +00:00
Stefan Weil 5d6b423c5c win32: Fix CRLF problem in make_device_config.sh
QEMU source code with CRLF line endings
which is quite common on windows hosts
fails with current make_device_config.sh.

The awk script gets the name of the included
file with \r, so instead of pci.mak it will
search for pci.mak\r which of course does
not work.

Fix this by removing any \r.

v2:
    Avoid using sub() and \r with awk because they are unsupported
    on some platforms. Use tr to remove \r. This new solution
    improves portability and was suggested by Paolo Bonzini.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Acked-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-18 18:58:25 +00:00
Bob Breuer 86d1c3887f sparc32: ledma extra registers
ledma has 0x20 bytes of registers according to OBP, and at least Solaris9
reads the 5th register which is beyond what we've mapped.  So let's setup
a flag (inspired by a previous patch from Blue Swirl) to identify ledma
from espdma, and map another 16 bytes of registers which return 0.

Signed-off-by: Bob Breuer <breuerr@mc.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-18 18:31:22 +00:00
Blue Swirl 4d22c6c2ee Fix warning on mingw32
Avoid this warning like other uses of setsockopt:
/src/qemu/net/socket.c: In function 'net_socket_mcast_create':
/src/qemu/net/socket.c:210: warning: passing argument 4 of 'setsockopt' from incompatible pointer type

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-17 21:03:00 +00:00