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2012-02-02linux-user: fix wait* syscall status returnsAlexander Graf
When calling wait4 or waitpid with a status pointer and WNOHANG, the syscall can potentially not modify the status pointer input. Now if we have guest code like: int status = 0; waitpid(pid, &status, WNOHANG); if (status) <breakage> then we have to make sure that in case status did not change we actually return the guest's initialized status variable instead of our own uninitialized. We fail to do so today, as we proxy everything through an uninitialized status variable which for me ended up always containing the last error code. This patch fixes some test cases when building yast2-core in OBS for ARM. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user/strace.c: Correct errno printing for mmap etcPeter Maydell
Correct the printing of errnos for syscalls which are handled via print_syscall_ret_addr (mmap, mmap2, brk, shmat): errnos are returned as negative returned values at this level, not via the host 'errno' variable. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: fix QEMU_STRACE=1 segfaultAlexander Graf
While debugging some issues with QEMU_STRACE I stumbled over segmentation faults that were pretty reproducible. Turns out we tried to treat a normal return value as errno, resulting in an access over array boundaries for the resolution. Fix this by allowing failure to resolve invalid errnos into strings. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: add SO_PEERCRED support for getsockoptAkos PASZTORY
Signed-off-by: Akos PASZTORY <akos.pasztory@gmail.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user/main.c: Add option to user-mode emulation so that user can ↵陳韋任
specify log file name QEMU linux user-mode's default log file name is "/tmp/qemu.log". In order to change the log file name, user need to modify the source code then recompile QEMU. This patch allow user use "-D logfile" option to specify the log file name. Signed-off-by: Chen Wen-Ren <chenwj@iis.sinica.edu.tw> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: fake /proc/self/auxvAlexander Graf
Gtk tries to read /proc/self/auxv to find its auxv table instead of taking it from its own program memory space. However, when running with linux-user, we see the host's auxv which clearly exposes wrong information. so let's instead expose the guest memory backed auxv tables via /proc/self/auxv as well. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: fake /proc/self/statAlexander Graf
The boehm gc finds the program's stack starting pointer by checking /proc/self/stat. Unfortunately, so far it reads qemu's stack pointer which clearly is wrong. So let's instead fake the file so the guest program sees the right address. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: fake /proc/self/mapsAlexander Graf
glibc's pthread_attr_getstack tries to find the stack range from /proc/self/maps. Unfortunately, /proc is usually the host's /proc which means linux-user guests see qemu's stack there. Fake the file with a constructed maps entry that exposes the guest's stack range. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: add open() hijack infrastructureAlexander Graf
There are a number of files in /proc that expose host information to the guest program. This patch adds infrastructure to override the open() syscall for guest programs to enable us to on the fly generate guest sensible files. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: save auxv lengthAlexander Graf
We create our own AUXV segment on stack and save a pointer to it. However we don't save the length of it, so any code that wants to do anything useful with it later on has to walk it again. Instead, let's remember the length of our AUXV segment. This simplifies later uses by a lot. (edited by Riku to apply to qemu HEAD) Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2012-02-02linux-user: stack_base is now mandatory on all targetsRiku Voipio
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-01main-loop: For tools, initialize timers as part of qemu_init_main_loop()Michael Roth
In some cases initializing the alarm timers can lead to non-negligable overhead from programs that link against qemu-tool.o. At least, setting a max-resolution WinMM alarm timer via mm_start_timer() (the current default for Windows) can increase the "tick rate" on Windows OSs and affect frequency scaling, and in the case of tools that run in guest OSs such has qemu-ga, the impact can be fairly dramatic (+20%/20% user/sys time on a core 2 processor was observed from an idle Windows XP guest). This patch doesn't address the issue directly (not sure what a good solution would be for Windows, or what other situations it might be noticeable), but it at least limits the scope of the issue to programs that "opt-in" to using the main-loop.c functions by only enabling alarm timers when qemu_init_main_loop() is called, which is already required to make use of those facilities, so existing users shouldn't be affected. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01main-loop: Fix SetEvent() on uninitialized handle on win32Michael Roth
The __attribute__((constructor)) init_main_loop() automatically get called if qemu-tool.o is linked in. On win32, this leads to a qemu_notify_event() call which attempts to SetEvent() on a HANDLE that won't be initialized until qemu_init_main_loop() is manually called, breaking qemu-tools.o programs on Windows at runtime. This patch checks for an initialized event handle before attempting to set it, which is analoguous to how we deal with an unitialized io_thread_fd in the posix implementation. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01optionroms: Silence intermediate file removalJan Kiszka
The build process of optionroms spits out an "rm ..." line. Moreover, it removes all .o files that can be handy for debugging purposes. So disable automatic intermediate removal. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01sdl: Limit sdl_grab_end in handle_activation to Windows hostsJan Kiszka
There are scenarios on Linux with some SDL versions where handle_activation is continuous invoked with state = SDL_APPINPUTFOCUS and gain = 0 while we grabbed the input. This causes a ping-pong when we grab the input after an absolute mouse entered the window. As this sdl_grab_end was once introduced to work around a Windows-only issue (0294ffb9c8), limit it to that platform. CC: Erik Rull <erik.rull@rdsoftware.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01sdl: Grab input on end of non-absolute mouse clickJan Kiszka
By grabbing the input already on button down, we leave the button in that state for the host GUI. Thus it takes another click after releasing the input again to synchronize the mouse button state. Avoid this by grabbing on button up. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01Revert "Handle SDL grabs failing (Mark McLoughlin)"Jan Kiszka
This reverts commit 6bb816031f8bc0aafc3476e6dfa4293ee3a5f106. SDL_WM_GrabInput does not reliably bail out if grabbing is impossible. So if we get here, we already lost and will block. But this can no longer happen due to the check in sdl_grab_start. So this patch became obsolete. Conflicts: sdl.c Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01sdl: Fix block prevention of SDL_WM_GrabInputJan Kiszka
Consistently check for SDL_APPINPUTFOCUS before trying to grab the input focus. Just checking for SDL_APPACTIVE doesn't work. Moving the check to sdl_grab_start allows for some consolidation. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01sdl: Do not grab mouse on mode switch while in backgroundJan Kiszka
When the mouse mode changes to absolute while the SDL windows is not in focus, refrain from grabbing the input. It would steal from some other window. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01Improve default machine options usabilityJan Kiszka
So far we overwrite the machine options completely with defaults if no accel=value is provided. More user friendly is to fill in only unspecified options. The new qemu_opts_set_defaults enables this. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01mc146818rtc: Use lost_tick_policy propertyJan Kiszka
Allow to configure the MC146818 RTC via the new lost tick policy property and replace rtc_td_hack with this mechanism. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01qemu-option: Introduce default mechanismJan Kiszka
This adds qemu_opts_set_defaults, an interface provide default values for a QemuOpts set. Default options are parsed from a string and then prepended to the list of existing options, or they serve as the sole QemuOpts set. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01qdev: Introduce lost tick policy propertyJan Kiszka
Potentially tick-generating timer devices will gain a common property: lock_tick_policy. It allows to encode 4 different ways how to deal with tick events the guest did not process in time: discard - ignore lost ticks (e.g. if the guest compensates for them already) delay - replay all lost ticks in a row once the guest accepts them again merge - if multiple ticks are lost, all of them are merged into one which is replayed once the guest accepts it again slew - lost ticks are gradually replayed at a higher frequency than the original tick Not all timer device will need to support all modes. However, all need to accept the configuration via this common property. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01Makefile: Remove linux-headers/asm symlink on distcleanPeter Maydell
configure creates a linux-headers/asm symlink. Remove this when doing a distclean. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01exec.c: Clarify comment about tlb_flush() flush_global parameterPeter Maydell
Clarify the comment about tlb_flush()'s flush_global parameter, so it is clearer what it does and why it is OK that the implementation currently ignores it. Reviewed-by: Andreas F=C3=A4rber <afaerber@suse.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01hw/9pfs: Update MAINTAINERS fileAneesh Kumar K.V
Acked-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01MAINTAINERS: Add a section for the host OS and a W32 maintainerStefan Weil
Up to now, there was no special section for the different host operating systems used with QEMU. scripts/get_maintainer.pl did not show a maintainer for OS specific files and patches. Therefore I added three hosts systems: * POSIX for the majority of host systems which are supported. This includes BSD and Linux host systems. * LINUX is a special case of POSIX needed for some Linux specific files and directories. * W32, W64 for a well known family of closed source operating systems. I also added myself as a maintainer for W32, W64. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01./configure: add link check for nss-smartcardSergei Trofimovich
Current './configure --static && make' fails for me: LINK qemu-nbd /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lssl3 /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lsmime3 /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lnssutil3 /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lnss3 /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lplds4 /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lplc4 /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lnspr4 My system does not provide static libraries for nss, so fix autoconfiguration by link checking. Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> CC: qemu-trivial <qemu-trivial@nongnu.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-01./configure: request pkg-config to provide private libs when static linkingSergei Trofimovich
Added wrapper around pkg-config to allow: - safe options injection via ${QEMU_PKG_CONFIG_FLAGS} - spaces in path to pkg-config Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> CC: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-30m48t59: use rtc_clock for alarm timerPaolo Bonzini
This lets the RTC get adjustments from the host NTP client. The watchdog still uses the vm_clock. The previous behavior is available with "-rtc clock=vm". Cc: Andreas Färber <afaerber@suse.de> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-01-30GRLIB UART: Add RX channelFabien Chouteau
This patch implements the RX channel of GRLIB UART with a FIFO to improve data rate. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-01-29Fix off-by-one in dirty bitmap functionsAvi Kivity
Reported-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-01-28Merge branch 'target-arm.for-upstream' of ↵Blue Swirl
git://git.linaro.org/people/pmaydell/qemu-arm * 'target-arm.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm: Add Cortex-A15 CPU definition Add dummy implementation of generic timer cp15 registers arm: store the config_base_register during cpu_reset target-arm/helper.c: Don't assume softfloat int32 is 32 bits only target-arm: Fix implementation of TLB invalidate operations
2012-01-27unin_pci: Fix typos in device namesAndreas Färber
Commit 999e12bbe85c5dcf49bef13bce4f97399c7105f4 (sysbus: apic: ioapic: convert to QEMU Object Model) introduced two typos, one of which broke the mac99 machine. Signed-off-by: Andreas Färber <afaerber@suse.de> Cc: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27qdev: change ambiguous qdev namesAnthony Liguori
Reported-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27virtio-s390: convert to QEMU Object ModelAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27sysbus: apic: ioapic: convert to QEMU Object ModelAnthony Liguori
This converts three devices because apic and ioapic are subclasses of sysbus. Converting subclasses independently of their base class is prohibitively hard. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27pci: convert to QEMU Object ModelAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27unin_pci: Drop unused reset handlerAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-01-27unin_pci: Drop duplicate busdevAndreas Färber
PCIHostState already has a busdev. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-01-27unin_pci: Clean up qdev namesAndreas Färber
Add -pcihost to SysBus devices to resolve name conflicts, and clarify PCI vs. Internal PCI. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-01-27virtio-serial: convert to QEMU Object ModelAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27spapr: convert to QEMU Object Model (v2)Anthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> --- v1 -> v2 - use QOM to check for the default console
2012-01-27scsi: convert to QEMU Object ModelAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27ide: convert to QEMU Object ModelAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27hda-codec: convert to QEMU Object ModelAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27i2c: smbus: convert to QEMU Object ModelAnthony Liguori
This converts two types because smbus is implemented as a subclass of i2c. It's extremely difficult to convert these two independently. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27i2c: rename i2c_slave -> I2CSlaveAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27ssi: convert to QEMU Object ModelAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27ccid: convert to QEMU Object ModelAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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