Andre Przywara [Fri, 10 Jun 2011 13:56:28 +0000 (15:56 +0200)]
KVM: Fix XSAVE feature bit enumeration
When iterating through the XSAVE feature enumeration CPUID leaf (0xD)
we should not stop at the first zero EAX, but instead keep scanning
since there are gaps in the enumeration (ECX=1 for instance).
This fixes the proper usage of AVX in KVM guests.
Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Jan Kiszka [Wed, 8 Jun 2011 14:11:05 +0000 (16:11 +0200)]
kvm: x86: Pass KVMState to kvm_arch_get_supported_cpuid
kvm_arch_get_supported_cpuid checks for global cpuid restrictions, it
does not require any CPUState reference. Changing its interface allows
to call it before any VCPU is initialized.
Jan Kiszka [Wed, 8 Jun 2011 14:10:57 +0000 (16:10 +0200)]
Switch build system to accompanied kernel headers
This helps reducing our build-time checks for feature support in the
available Linux kernel headers. And it helps users that do not have
sufficiently recent headers installed on their build machine.
Consequently, the patch removes and build-time checks for kvm and vhost
in configure, the --kerneldir switch, and KVM_CFLAGS. Kernel headers are
supposed to be provided by QEMU only.
s390 needs some extra love as it carries redefinitions from kernel
headers.
CC: Alexander Graf <agraf@suse.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Jan Kiszka [Wed, 8 Jun 2011 14:10:56 +0000 (16:10 +0200)]
Import kernel headers
These kernel headers and the COPYING file were automatically imported
from current Linux git, cb0a02ecf9 (post 3.0-rc2).
Licensing:
asm-powerpc GPLv2
asm-s390 GPLv2
asm-x86 Linux top-level license (GPLv2 with exception)
linux/kvm*: Linux top-level license (GPLv2 with exception)
linux/vhost: Linux top-level license (GPLv2 with exception)
linux/virtio*: 3-clause BSB
CC: Alexander Graf <agraf@suse.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Jan Kiszka [Wed, 8 Jun 2011 16:22:17 +0000 (18:22 +0200)]
Add kernel header update script
This helper pulls the required kernel headers for KVM and vhost into a
specified directory. The update is triggered via
scripts/update-linux-headers.sh LINUX_PATH
and will place the output under linux-headers/linux and linux-headers/asm-*.
It also imports the COPYING to care for headers without an explicit license.
CC: Alexander Graf <agraf@suse.de> CC: Christoph Hellwig <hch@lst.de> CC: Peter Maydell <peter.maydell@linaro.org> CC: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Jan Kiszka [Wed, 15 Jun 2011 13:17:26 +0000 (15:17 +0200)]
kvm: x86: Save/restore FPU OP, IP and DP
These FPU states are properly maintained by KVM but not yet by TCG. So
far we unconditionally set them to 0 in the guest which may cause
state corruptions, though not with modern guests.
To avoid breaking backward migration, use a conditional subsection that
is only written if any of the three fields is non-zero. The guest's
FNINIT clears them frequently, and cleared IA32_MISC_ENABLE MSR[2]
reduces the probability of non-zero values further so that this
subsection is not expected to restrict migration in any common scenario.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Peter Maydell [Thu, 26 May 2011 16:34:11 +0000 (17:34 +0100)]
hw/9118.c: Implement active-low interrupt support
The 9118 ethernet controller interrupt line is active low unless
the IRQ config register is programmed to set both the IRQ_POL
(polarity: active-high) and IRQ_TYPE (type: push-pull) bits:
implement support for inverting the irq output in other configurations.
This also requires that we support setting the bits in the first
place, and that we correctly preserve them across software reset.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Andreas Färber [Thu, 2 Jun 2011 17:58:06 +0000 (19:58 +0200)]
Introduce format string for pid_t
BeOS and Haiku on i386 use long for 32-bit types, including pid_t.
Using %d with pid_t therefore results in a warning.
Unfortunately POSIX:2008 does not define a PRId* string for pid_t.
In some places pid_t was previously casted to long and %ld hardcoded.
The predecessor of this patch added another upcast for the simpletrace
filename but was not applied to date.
Since new uses of pid_t with %d keep creeping in, let's instead define
an OS-dependent format string and use that consistently.
Cc: Stefan Hajnoczi <stefanha@gmail.com> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Ingo Weinhold <ingo_weinhold@gmx.de> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Juha Riihimäki [Tue, 31 May 2011 16:48:23 +0000 (17:48 +0100)]
smc91c111: qdevify reset
Register the smc91c111 reset function as a qdev reset function.
Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Wed, 15 Jun 2011 18:31:56 +0000 (18:31 +0000)]
Merge branch 'cocoa-for-upstream' of git://repo.or.cz/qemu/afaerber
* 'cocoa-for-upstream' of git://repo.or.cz/qemu/afaerber:
Darwin: Fix compilation warning regarding the deprecated daemon() function
cocoa: Avoid warning related to multiple handleEvent: definitions
cocoa: Revert dependency on VNC
cocoa: Provide central qemu_main() prototype
Fix libfdt warnings on Darwin
configure: Fix check for fdatasync()
Remove warning in printf due to type mismatch
Cocoa: avoid displaying window when command-line contains '-h' or '-help'
Fix compilation warning due to incorrectly specified type
cocoa: do not create a spurious window for -version
Command line support for altering the log file location
Add command line support for logging to a location other than /tmp/qemu.log.
With logging enabled (command line option -d), the log is written to
the hard-coded path /tmp/qemu.log. This patch adds support for writing
the log to a different location by passing the -D option.
Signed-off-by: Matthew Fernandez <matthew.fernandez@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Kevin Wolf [Tue, 7 Jun 2011 15:51:21 +0000 (17:51 +0200)]
Allow nested qemu_bh_poll() after BH deletion
Without this, qemu segfaults when a BH handler first deletes its BH and
then calls another function which involves a nested qemu_bh_poll() call.
This can be reproduced by generating an I/O error (e.g. with blkdebug) on
an IDE device and using rerror/werror=stop to stop the VM. When continuing
the VM, qemu segfaults.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Kevin Wolf [Fri, 10 Jun 2011 14:32:13 +0000 (16:32 +0200)]
ide: Clear error_status after restarting flush
Clearing the error status flag was missing for restarting flushes. Now that the
error status is separate from the BM status register, we can simply set it to 0
after restarting the request. This ensures that we never forget to clear a bit.
Make dma_bdrv_io available for drivers, and pass an explicit I/O function
instead of hardcoding bdrv_aio_readv/bdrv_aio_writev. This is required
to implement non-READ/WRITE dma commands in the ide driver, e.g. the
upcoming TRIM support.
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kevin Wolf [Thu, 26 May 2011 13:00:34 +0000 (15:00 +0200)]
ide: Split error status from status register
When adding the werror=stop mode, some flags were added to s->status
which are used to determine what kind of operation should be restarted
when the VM is continued.
Unfortunately, it turns out that s->status is in fact a device register
and as such is visible to the guest (some of the abused bits are even
writable for the guest).
For migration we keep on using the old VMState field (renamed to
migration_compat_status) if the status register doesn't use any of the
previously abused bits. If it does, we use a subsection with a clean copy of
the status register.
The error status is always sent in a subsection if there is any error. It can't
use the old field because errors happen even without PCI.
Kevin Wolf [Tue, 24 May 2011 14:40:02 +0000 (16:40 +0200)]
qcow2: Fix in-flight list after qcow2_cache_put failure
If qcow2_cache_put returns an error during cluster allocation and the
allocation fails, it must be removed from the list of in-flight allocations.
Otherwise we'd get a loop in the list when the ACB is used for the next
allocation.
Luckily, this qcow2_cache_put shouldn't fail anyway because the L2 table is
only read, so that qcow2_cache_put doesn't even involve I/O.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
Kevin Wolf [Tue, 7 Jun 2011 14:12:58 +0000 (16:12 +0200)]
vdi: Avoid direct AIO callback
bdrv_aio_* must not call the callback before returning to its caller. In vdi,
this could happen in some error cases. This starts the real requests processing
in a BH to avoid this situation.
Kevin Wolf [Tue, 7 Jun 2011 13:20:44 +0000 (15:20 +0200)]
qcow: Avoid direct AIO callback
bdrv_aio_* must not call the callback before returning to its caller. In qcow,
this could happen in some error cases. This starts the real requests processing
in a BH to avoid this situation.
Kevin Wolf [Tue, 7 Jun 2011 13:04:32 +0000 (15:04 +0200)]
qcow2: Avoid direct AIO callback
bdrv_aio_* must not call the callback before returning to its caller. In qcow2,
this could happen in some error cases. This starts the real requests processing
in a BH to avoid this situation.
Yang, Wei Y [Mon, 30 May 2011 15:17:42 +0000 (23:17 +0800)]
kvm: Enable CPU SMEP feature
This patchset enables a new CPU feature SMEP (Supervisor Mode Execution
Protection) in QEMU-KVM. SMEP prevents kernel from executing code in application.
Updated Intel SDM describes this CPU feature. The document will be published soon.
SMEP is identified by CPUID leaf 7 EBX[7], which is 0 before. Get the right value by query KVM kernel module, so that guest can get SMEP through CPUID.
When KVM is running on VIA CPU with host cpu's model, the
feautures of VIA CPU will be passed into kvm guest by calling
the CPUID instruction for Centaur.
Alon Levy [Sun, 15 May 2011 08:51:28 +0000 (11:51 +0300)]
libcacard: add libcacard.la target
No flag to configure is required. Instead, added a libcacard.la target that
is not built by default, only when requested explicitly via:
mkdir build
cd build
../configure
make libcacard.la
make install-libcacard
Uses libtool to do actual linking of object files and shared library, and
installing. Tested only under linux, but supposed to work on other systems as
well.
If libtool isn't found you get a message complaining about that, only at build
time (since it is not a default target I did not add a message at configure
time).
New build artifacts:
.libs subdirectories (at <buildroot> and <buildroot>/libcacard)
*.lo files (at same locations as the respective o files)
Added %.lo : %.c rule that uses libtool.
Updated clean rule to clean up those artifacts.
Added specific rule to call dtrace with libtool wrapper (note that because of
a current upstream dtrace bug fixed by systemtap b1568fd85 commit the -fPIC flag
isn't actually passed on. still current dtrace+libtool produced object links fine).
If libtool is missing any of the following targets will complain and exit 1:
any subdir: *.lo
root and libcacard: libcacard.la, libcacard-instsall
Tested to link and load with all tracing backends.
Peter Maydell [Tue, 7 Jun 2011 18:50:12 +0000 (19:50 +0100)]
hw/usb-ohci.c: Implement remote wakeup
Implement the wakeup callback in the OHCI USBPortOps, so that when
a downstream device wakes up it correctly causes the OHCI controller
to come out of suspend.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Hans de Goede [Tue, 31 May 2011 09:35:29 +0000 (11:35 +0200)]
usb-bus: Don't detach non attached devices on device exit
This causes an "Error: tried to detach unattached usb device " to be printed,
this can happen when deleting ie a usb host qdev, which did not
get attached (because a device matching the filter never got plugged in).
Hans de Goede [Tue, 31 May 2011 09:35:26 +0000 (11:35 +0200)]
usb-linux: Enlarge buffer for descriptors to 8192 bytes
1024 bytes is way to small, one hd UVC webcam I have over here has so
many resolutions its descriptors take op close to 4k. Hopefully 8k will
be enough for all devices.
Hans de Goede [Tue, 31 May 2011 09:35:24 +0000 (11:35 +0200)]
usb-linux: Don't try to open the same device twice
If a user wants to redirect 2 identical usb sticks, in theory this is
possible by doing:
usb_add host:1234:5678
usb_add host:1234:5678
But this will lead to us trying to open the first stick twice, since we
don't break the loop after having found a match in our filter list, so the next'
filter list entry will result in us trying to open the same device again.
Hans de Goede [Tue, 31 May 2011 09:35:18 +0000 (11:35 +0200)]
usb-linux: Get speed from sysfs rather then from the connectinfo ioctl
The connectinfo ioctl only differentiates between lo speed devices, and
all other speeds, where as we would like to know the real speed. The real
speed is available in sysfs so use that when available.
Gerd Hoffmann [Mon, 30 May 2011 14:09:08 +0000 (16:09 +0200)]
usb-ehci: itd handling fixes.
This patch fixes a bunch of issues in the itd descriptor handling.
Most important fix is to handle transfers which cross page borders
correctly by looking up the address of the next page. Luckily the
linux uses physically contigous memory so the data used to hits the
correct location even with this bug instead of corrupting guest
memory. Also the transfer length updates for outgoing transfers wasn't
correct.
While being at it DPRINTFs have been replaced by tracepoints.
The isoch_pause logic has been disabled. Not clear to me which propose
this serves and I think it is incorrect too as we just skip processing
itds. Even when no xfer happens we have to clear the active bit.
Gerd Hoffmann [Mon, 23 May 2011 15:37:12 +0000 (17:37 +0200)]
usb: cancel async packets on unplug
This patch adds USBBusOps struct with (for now) only a single callback
which is called when a device is about to be destroyed. The USB Host
adapters are implementing this callback and use it to cancel any async
requests which might be in flight before the device actually goes away.
Gerd Hoffmann [Thu, 19 May 2011 15:56:19 +0000 (17:56 +0200)]
usb-ehci: multiqueue support
This patch adds support for keeping multiple queues going at the same
time. One slow device will not affect other devices any more.
The patch adds code to manage EHCIQueue structs. It also does a number
of changes to the state machine:
* The state machine will never ever stop in EXECUTING any more.
Instead it will continue with the next queue (aka HORIZONTALQH) when
the usb device returns USB_RET_ASYNC.
* The state machine will stop processing when it figures it walks in
circles (easy to figure now that we have a EHCIQueue struct for each
QH we've processed). The bailout logic should not be needed any
more. For now it is still in, but will assert() in case it triggers.
* The state machine will just skip queues with a async USBPacket in
flight.
* The state machine will resume processing as soon as the async
USBPacket is finished.
The patch also takes care to flush the QH struct back to guest memory
when needed, so we don't get stale data when (re-)loading it from guest
memory in FETCHQH state.
It also makes the writeback code to not touch the first three dwords of
the QH struct as the EHCI must not write them. This actually fixes a
bug where QH chaining changes (next ptr) by the linux ehci driver where
overwritten by the emulated EHCI.
Gerd Hoffmann [Thu, 19 May 2011 08:49:03 +0000 (10:49 +0200)]
usb-ehci: add queue data struct
Add EHCIQueue struct, move the fields needed to track the queue state
into that struct. Pass the new struct instead of ehci state down to
functions which handle the queue state. Lot of variable references have
changed due to that without an actual functional change.
Replace fetch_addr with two variables, one for async and one for
periodic schedule. Add functions to get and set the fetch address.
Use EHCIQueue->usb_status (old name: EHCIState->exec_status) directly in
ehci_execute_complete instead of passing around the status using a
parameters and the return value.
ehci_state_fetchqh returns a EHCIQueue struct now.
Gerd Hoffmann [Thu, 19 May 2011 06:55:09 +0000 (08:55 +0200)]
usb-ehci: improve mmio tracing
Add a separate tracepoint to log how register values change in response
to a mmio write. Especially useful for registers which have read-only
or clear-on-write bits in them.
Gerd Hoffmann [Wed, 18 May 2011 12:23:35 +0000 (14:23 +0200)]
usb-ehci: trace state machine changes
Add functions to get and set the current state of the state machine,
add tracepoints there to trace state transitions. Add support for
traceing the queue heads and transfer descriptors as we look at them.
Drop a few DPRINTFs and all DPRINTF_ST lines, they are obsolete now.
Gerd Hoffmann [Tue, 24 May 2011 14:12:31 +0000 (16:12 +0200)]
usb-linux: catch ENODEV in more places.
Factor out disconnect code (called when a device disappears) to a
separate function. Add a check for ENODEV errno to a few more places
to make sure we notice disconnects.
Stefan Weil [Fri, 10 Jun 2011 20:05:30 +0000 (22:05 +0200)]
block/rbd: Remove unused local variable
Variable 'snap' is assigned a value that is never used.
Remove snap and the related code.
Cc: Christian Brunner <chb@muc.de> Cc: Josh Durgin <josh.durgin@dreamhost.com> Cc: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Reviewed-by: Josh Durgin <josh.durgin@dreamhost.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Darwin: Fix compilation warning regarding the deprecated daemon() function
Changes since v1: create a wrapper function named qemu_daemon() in oslib-posix.c
instead of putting the OS specific workaround in qemu-nbd.c directly.
On OSX >= 10.5, daemon() is deprecated, resulting in the following warning:
----8<----
qemu-nbd.c: In function ‘main’:
qemu-nbd.c:371: warning: ‘daemon’ is deprecated (declared at /usr/include/stdlib.h:289)
----8<----
The following trick, used in mDNSResponder, takes care of this warning:
http://www.opensource.apple.com/source/mDNSResponder/mDNSResponder-258.18/mDNSPosix/PosixDaemon.c
On OSX, it temporarily renames the daemon() function before including stdlib.h
and declares it manually as an extern function. This way, the compiler does not
see the declaration from stdlib.h and thus does not display the warning.
Signed-off-by: Alexandre Raymond <cerbere@gmail.com> Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Andreas Färber [Thu, 9 Jun 2011 18:53:32 +0000 (20:53 +0200)]
cocoa: Avoid warning related to multiple handleEvent: definitions
Avoid compiler confusion as to which method signature to use for the
handleEvent: selector on OSX >= 10.6 by making the variable type-safe
as opposed to generic 'id' type.
Requires moving the variable definition to after the class definition.
----8<----
ui/cocoa.m: In function ‘cocoa_refresh’:
ui/cocoa.m:997: warning: multiple methods named ‘-handleEvent:’ found
/System/Library/Frameworks/AppKit.framework/Headers/NSTextInputContext.h:84: warning: using ‘-(BOOL)handleEvent:(NSEvent *)theEvent’
ui/cocoa.m:272: warning: also found ‘-(void)handleEvent:(NSEvent *)event’
----8<---
Reported-by: Alexandre Raymond <cerbere@gmail.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de> Tested-by: Alexandre Raymond <cerbere@gmail.com>
Andreas Färber [Thu, 2 Jun 2011 18:51:22 +0000 (20:51 +0200)]
cocoa: Revert dependency on VNC
In 821601ea5b02a68ada479731a4d3d07a9876632a (Make VNC support optional)
cocoa.o was moved from ui-obj-$(CONFIG_COCOA) to vnc-obj-$(CONFIG_COCOA),
adding a dependency on $(CONFIG_VNC). That must've been unintentional.
Cc: Jes Sorensen <Jes.Sorensen@redhat.com> Cc: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Andreas Färber [Sun, 29 May 2011 17:42:51 +0000 (19:42 +0200)]
cocoa: Provide central qemu_main() prototype
This fixes a missing prototype warning in vl.c and obsoletes
the prototype in cocoa.m. Adjust callers in cocoa.m to supply
third argument, which is currently only used on Linux/ppc.
The prototype is designed so that it could be shared with SDL
and other frontends, if desired.
Cc: Alexandre Raymond <cerbere@gmail.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Andreas Färber [Sat, 28 May 2011 13:45:18 +0000 (15:45 +0200)]
Fix libfdt warnings on Darwin
Building with libfdt results in the following warnings on Mac OS X:
CC ppc-softmmu/device_tree.o
In file included from /Users/andreas/QEMU/latest64/include/libfdt.h:54,
from /Users/andreas/QEMU/qemu/device_tree.c:26:
/Users/andreas/QEMU/qemu/libfdt_env.h:25:20: warning: endian.h: No such file or directory
/Users/andreas/QEMU/qemu/libfdt_env.h:26:22: warning: byteswap.h: No such file or directory
/Users/andreas/QEMU/qemu/libfdt_env.h:28:5: warning: "__BYTE_ORDER" is not defined
/Users/andreas/QEMU/qemu/libfdt_env.h:28:21: warning: "__BIG_ENDIAN" is not defined
Since QEMU's copy of libfdt_env.h only uses bswap_32() and bswap_64(),
let QEMU's bswap.h take care of the headers and use its endianness define.
Cc: Hollis Blanchard <hollis@penguinppc.org> Signed-off-by: Andreas Färber <andreas.faerber@web.de> Acked-by: Alexander Graf <agraf@suse.de>
Under Darwin, a symbol exists for the fdatasync() function, so that our
link test succeeds. However _POSIX_SYNCHRONIZED_IO is set to '-1'.
According to POSIX:2008, a value of -1 means the feature is not supported.
A value of 0 means supported at compilation time, and a value greater 0
means supported at both compilation and run time.
Enable fdatasync() only if _POSIX_SYNCHRONIZED_IO is '>0'.
Signed-off-by: Alexandre Raymond <cerbere@gmail.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de>
----8<----
qemu/target-lm32/translate.c: In function ‘gen_intermediate_code_internal’:
qemu/target-lm32/translate.c:1135: warning: format ‘%zd’ expects type ‘signed size_t’, but argument 4 has type ‘int’
----8<----
Both gen_opc_ptr and gen_opc_buf are "uint16_t *". The difference between
pointers is a ptrdiff_t so printf needs '%td'.
Signed-off-by: Alexandre Raymond <cerbere@gmail.com> Acked-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Fix compilation warning due to incorrectly specified type
In audio/coreaudio.c, a variable named "str" was assigned "const char" values,
which resulted in the following warnings:
-----8<-----
audio/coreaudio.c: In function ‘coreaudio_logstatus’:
audio/coreaudio.c:59: warning: initialization discards qualifiers from pointer target type
audio/coreaudio.c:63: warning: assignment discards qualifiers from pointer target type
(...)
-----8<-----
Signed-off-by: Alexandre Raymond <cerbere@gmail.com> Acked-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Peter Maydell [Thu, 9 Jun 2011 21:54:29 +0000 (22:54 +0100)]
configure: Detect and don't try to use older libcurl
Older versions of libcurl don't have some of the features we try to
use, in particular curl_multi_setopt(). Check for this in the 'is
libcurl available?' configure test so we disable curl support if the
library is too old.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Alexander Graf [Wed, 8 Jun 2011 22:55:37 +0000 (00:55 +0200)]
sigfd: use pthread_sigmask
Qemu uses signalfd to figure out, if a signal occured without the need
to actually receive the signal. Instead, it can read from the fd to receive
its news.
Now, we obviously don't always have signalfd around. Especially not on
non-Linux systems. So what we do there is that we create a new thread,
block that thread on all signals and simply call sigwait to wait for a
signal we're interested in to occur.
This all sounds great, but what we're really doing is:
which - on Darwin - blocks all signals on the current _process_, not only
on the current thread. To block signals on the thread, we can use
pthread_sigmask().
This patch does that, assuming that my above analysis is correct, and thus
renders Qemu useable on Darwin again.
Reported-by: Andreas Färber <andreas.faerber@web.de> Acked-by: Paolo Bonizni <pbonzini@redhat.com> CC: Jan Kiszka <jan.kiszka@siemens.com> CC: Anthony Liguori <anthony@codemonkey.ws> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Merge remote branch 'rth/axp-next' into alpha-merge
* rth/axp-next: (26 commits)
target-alpha: Implement TLB flush primitives.
target-alpha: Use a fixed frequency for the RPCC in system mode.
target-alpha: Trap for unassigned and unaligned addresses.
target-alpha: Remap PIO space for 43-bit KSEG for EV6.
target-alpha: Implement cpu_alpha_handle_mmu_fault for system mode.
target-alpha: Implement more CALL_PAL values inline.
target-alpha: Disable interrupts properly.
target-alpha: All ISA checks to use TB->FLAGS.
target-alpha: Swap shadow registers moving to/from PALmode.
target-alpha: Implement do_interrupt for system mode.
target-alpha: Add IPRs to be used by the emulation PALcode.
target-alpha: Use kernel mmu_idx for pal_mode.
target-alpha: Add various symbolic constants.
target-alpha: Use do_restore_state for arithmetic exceptions.
target-alpha: Tidy up arithmetic exceptions.
target-alpha: Tidy exception constants.
target-alpha: Enable the alpha-softmmu target.
target-alpha: Rationalize internal processor registers.
target-alpha: Merge HW_REI and HW_RET implementations.
target-alpha: Cleanup MMU modes.
...
Kevin Wolf [Wed, 1 Jun 2011 12:03:31 +0000 (14:03 +0200)]
bdrv_img_create: Fix segfault
Block drivers that don't support creating images don't have a size option. Fail
gracefully instead of segfaulting when trying to access the option's value.
projects / qemu.git / log