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2011-01-06cirrus_vga: Declare as little endianBlue Swirl
This patch replaces explicit bswaps with endianness hints to the mmio layer. CC: Alexander Graf <agraf@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-01-06pc: move port 92 stuff back to pc.c from pckbd.cBlue Swirl
956a3e6bb7386de48b642d4fee11f7f86a2fcf9a introduced a bug concerning reset bit for port 92. Since the keyboard output port and port 92 are not compatible anyway, let's separate them. Reported-by: Peter Lieven <pl@dlh.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com> -- v2: added reset handler and VMState
2011-01-06target-ppc: Implement correct NaN propagation rulesAurelien Jarno
Implement the correct NaN propagation rules for PowerPC targets by providing an appropriate pickNaN function. Also fix the #ifdef tests for default NaN definition, the correct name is TARGET_PPC instead of TARGET_POWERPC. Reviewed-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-06target-mips: Implement correct NaN propagation rulesAurelien Jarno
Implement the correct NaN propagation rules for MIPS targets by providing an appropriate pickNaN function. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-06softfloat: use float{32,64,x80,128}_maybe_silence_nan()Aurelien Jarno
Use float{32,64,x80,128}_maybe_silence_nan() instead of toggling the sNaN bit manually. This allow per target implementation of sNaN to qNaN conversion. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2011-01-06softfloat: add float{x80,128}_maybe_silence_nan()Aurelien Jarno
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>
2011-01-06softfloat: fix float{32,64}_maybe_silence_nan() for MIPSAurelien Jarno
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>
2011-01-06softfloat: rename *IsNaN variables to *IsQuietNaNAurelien Jarno
Similarly to what has been done in commit 185698715dfb18c82ad2a5dbc169908602d43e81 rename the misnamed *IsNaN variables into *IsQuietNaN. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-06softfloat: remove HPPA specific codeAurelien Jarno
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>
2011-01-06target-ppc: use float32_is_any_nan()Aurelien Jarno
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>
2011-01-06target-ppc: fix default qNaNAurelien Jarno
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>
2011-01-06target-ppc: remove PRECISE_EMULATION defineAurelien Jarno
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>
2011-01-05rtl8139: Use subsection to restrict migration after hotplugAlex Williamson
rtl8139 includes a cpu_register_io_memory acquired value in it's migration data. This is not only unecessary, but we should treat these values as unique to the VM instances since the value depends on call order. In most cases, this miraculously still works. However, if devices are added or removed from the system, it may represent an ordering change, which could cause the target rtl8139 device to make use of another device's cpu_register_io_memory value. If we detect that a hot-add/remove has occured, include a subsection to restrict migrations only to driver versions known to include this fix. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-01-05qdev: Track runtime machine modificationsAlex Williamson
Create a trivial interface to track whether the machine has been modified since boot. Adding or removing devices will trigger this to return true. An example usage scenario for such an interface is the rtl8139 driver which includes a cpu_register_io_memory() value in it's migration stream. For the majority of migrations, where no hotplug has occured in the machine, this works correctly. Once the machine is modified, we can use this interface to detect that and include a subsection for the device to prevent migrations to rtl8139 versions with this bug. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-01-05microblaze: Use more TB chainingEdgar E. Iglesias
For some workloads with tight loops this ~doubles the emulation speed. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2011-01-04cirrus_vga: fix division by 0 for color expansion ropAurelien Jarno
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>
2011-01-04Fix curses on big endian hostsAurelien Jarno
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>
2011-01-04noaudio: correctly account acquired samplesMichael Walle
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>
2011-01-02target-arm: Implement correct NaN propagation rulesPeter Maydell
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>
2011-01-02softfloat: abstract out target-specific NaN propagation rulesPeter Maydell
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>
2011-01-02softfloat: Rename float*_is_nan() functions to float*_is_quiet_nan()Peter Maydell
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>
2010-12-31TCG: Improve tb_phys_hash_func()Aurelien Jarno
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>
2010-12-31target-arm: fix UMAAL instructionAurelien Jarno
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>
2010-12-31Fix translation of unary PPC/SPE instructions (efdneg etc.).Mike Pall
Signed-off-by: Mike Pall <mike-lp10@luajit.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-28target-sparc: fix udiv(cc) and sdiv(cc)Aurelien Jarno
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>
2010-12-27Merge branch 'spice.v23.pull' of git://anongit.freedesktop.org/spice/qemuAurelien Jarno
* '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.
2010-12-27x86: Filter out garbage from segment flags dumpJan Kiszka
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>
2010-12-27Fix migrate set speed doc argLuiz Capitulino
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>
2010-12-27target-arm: correct cp15 c1_sys reset value for arm1136 and cortex-a9Juha Riihimäki
Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27target-arm: correct cp15 c1_sys reset value for cortex-a8Mattias Holm
Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27target-arm: fix vmsav6 access controlJuha Riihimäki
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>
2010-12-27target-arm: Correct result in saturating cases for VQSHL of s8/16/32Peter Maydell
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>
2010-12-27target-arm: remove pointless else clause in VQSHL of u64Juha Riihimäki
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>
2010-12-27target-arm: Fix VQSHL of signed 64 bit values by shift counts >= 64Peter Maydell
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>
2010-12-27target-arm: Fix VQSHL of signed 64 bit valuesJuha Riihimäki
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>
2010-12-27target-arm: Fix arguments passed to VQSHL helpersJuha Riihimäki
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>
2010-12-27target-arm: fix bug in translation of REVSHAurelien Jarno
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>
2010-12-27Fix a missing trailing newlineAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-27pci: fix migration path for devices behind bridgesMichael S. Tsirkin
The device path used for migration is currently broken for for all devices behind a nested bridge. Replace this by a hierarchical list of slot/function numbers, walking the path from root down to device. Add :00 after the domain number so that if there are no nested bridges, this is compatible with what we have now. Note: as pointed out by Gleb, using openfirmware paths might be cleaner, doing this would break compatibility though, and the IDs used are not guest or user visible at all, so breaking the compatibility is probably not worth it. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-27target-mips: fix host CPU consumption when guest is idleAurelien Jarno
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>
2010-12-26s390: compile fixesAlexander Graf
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>
2010-12-24pcie/aer: glue aer error injection into qemu monitorIsaku Yamahata
introduce pcie_aer_inject_error command. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-24pci: introduce a helper function to convert qdev id to PCIDeviceIsaku Yamahata
This patch introduce a helper function to get PCIDevice from qdev id. This function will be used later. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-24qdev: export qdev_find_recursive() for later useIsaku Yamahata
This patch exports qdev_find_recursive() for later use. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-22build, pci: remove QMP dependency on core PCI codeIsaku Yamahata
by introducing pci-stub.c, eliminate QMP dependency on core PCI code rquired by query-pci command. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-22target-mips: fix translation of MT instructionsNathan Froyd
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>
2010-12-22pcie: add flr supportIsaku Yamahata
Support flr: trigger device reset on flr config write. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-22pc/piix: fix mismerge of b1aeb92666d2fde413c34578b3b42bbfe5f2a506Isaku Yamahata
The change set of b1aeb92666d2fde413c34578b3b42bbfe5f2a506 in pci branch was mismerged. The compatibility should be kept for 0.13, not for 0.14. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-21Use mmap() within code_gen_alloc() for OpenBSD.Brad
Signed-off-by: Brad Smith <brad@comstyle.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-21Add OpenBSD to ifdef list since it has CLOCK_MONOTONIC.Brad
Signed-off-by: Brad Smith <brad@comstyle.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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