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.
CC: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
No one references kvm_check_extension, kvm_has_vcpu_events, and
kvm_has_robust_singlestep outside KVM code.
kvm_update_guest_debug is never called, thus has no job besides
returning an error.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
No longer needed with accompanied kernel headers.
CC: Alexander Graf <agraf@suse.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
No longer needed with accompanied kernel headers.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
No longer needed with accompanied kernel headers. We are only left with
build dependencies that are controlled by kvm arch headers.
CC: Alexander Graf <agraf@suse.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Required header support is now unconditionally available.
CC: Alexander Graf <agraf@suse.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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>
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>
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>
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>
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>
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>
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>
* '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
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>
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>
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.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Add support for TRIM sub function of the data set management command,
and wire it up to the qemu discard infrastructure.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Replace the is_read flag with a dma_cmd flag to allow the dma and
restart logic to handler other commands like TRIM.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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>
When a failed PIO request caused the VM to stop, we still need to transfer the
PIO state even though DRQ=0 at this point.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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>
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.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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.
Signed-off-by: Yang, Wei <wei.y.yang@intel.com>
Singed-off-by: Shan, Haitao <haitao.shan@intel.com>
Singed-off-by: Li, Xin <xin.li@intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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.
Signed-off-by: BrillyWu<brillywu@viatech.com.cn>
Signed-off-by: KaryJin<karyjin@viatech.com.cn>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
ccid_initfn() allocates CCIDBus dynamically, but there is no exit
callback to free it.
Fix by getting rid of the allocation.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
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.
expire_time must be initialited when the guest activates the
usb scheduler, not at device creation time.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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>
HcPeriodCurrentED is read-only, but Linux writes to it anyway; silently
ignore this rather than printing a warning message.
(Specifically, drivers/usb/host/ohci-hub.c:ohci_rh_resume() writes a
0, in at least kernels 2.6.25 through 2.6.39.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Jan Kiszka
Peter Maydell
Andreas Färber
Juha Riihimäki
Blue Swirl
Matthew Fernandez
Anthony Liguori
Kevin Wolf
Christoph Hellwig
Devin Nakamura
Yang, Wei Y
brillywu@viatech.com.cn
Markus Armbruster
Alon Levy
Gerd Hoffmann
Brad Hards
Hans de Goede