| Commit message (Collapse) | Author | Age | Files | Lines |
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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>
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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>
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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>
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For some workloads with tight loops this ~doubles the emulation
speed.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
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Commit d85d0d3883f5a567fa2969a0396e42e0a662b3fa 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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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Signed-off-by: Mike Pall <mike-lp10@luajit.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Since commit 5a4bb580cdb10b066f9fd67658b31cac4a4ea5e5, 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>
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* '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.
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This patch adds new set_password and expire_password monitor commands
which allows to change and expire the password for spice and vnc
connections. See the doc update patch chunk for details.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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This patch adds support for expiring passwords to vnc. It adds a new
vnc_display_pw_expire() function which specifies the time when the
password will expire.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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protocol_client_auth_vnc() has two places where the auth can fail,
with identical code sending the reject message to the client.
Move the common code to the end of the function and make both
error paths jump there. No functional change.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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The patch adds a 'query-spice' monitor command which returns
informations about the spice server configuration and also a list of
channel connections.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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This patch adds support for connection events to spice. The events are
quite simliar to the vnc events. Unlike vnc spice uses multiple tcp
channels though. qemu will report every single tcp connection (aka
spice channel). If you want track spice sessions only you can filter
for the main channel (channel-type == 1).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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qxl is a paravirtual graphics card. The qxl device is the bridge
between the guest and the spice server (aka libspice-server). The
spice server will send the rendering commands to the spice client, which
will actually render them.
The spice server is also able to render locally, which is done in case
the guest wants read something from video memory. Local rendering is
also used to support display over vnc and sdl.
qxl is activated using "-vga qxl". qxl supports multihead, additional
cards can be added via '-device qxl".
[ v2: add copyright to files ]
[ v2: use qemu-common.h for standard includes ]
[ v2: create separate qxl-vga device for primary ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Just compiled from vgabios git repo @ git.qemu.org,
copyed over and committed. Also added to the list
of blobs in the Makefile.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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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>
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We used to ignore any fractional part in 0.13, but due to recent
changes (started with 9f9b17a4f0865286391e4d3a0a735230122a2289)
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>
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Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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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>
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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>
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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>
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Signed-off-by: Brad Smith <brad@comstyle.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Brad Smith <brad@comstyle.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Brad Smith <brad@comstyle.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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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>
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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 ec990eb622ad46df5ddcb1e94c418c271894d416).
Cc: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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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>
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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>
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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>
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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>
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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>
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Use existing dump_mmu() to implement monitor command 'info tlb'.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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This patch tags all vga cards as not hotpluggable. The qemu
standard vga will never ever be hotpluggable. For cirrus + vmware
it might be possible to get that work some day. Todays we can't
handle that for a number of reasons though.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This patch tags all pci devices which belong to the piix3/4 chipsets as
not hotpluggable (Host bridge, ISA bridge, IDE controller, ACPI bridge).
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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