When visit_start_struct() fails, visit_end_struct() must not be
called. rtc_get_date() and balloon_stats_all() call it anyway. As
far as I can tell, they're only used with the string output visitor,
which doesn't care. Fix them anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
looks like a quiet week
minor bugfix in virtio by myself
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
virtio update
looks like a quiet week
minor bugfix in virtio by myself
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Tue 13 May 2014 14:37:23 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream:
virtio: allow mapping up to max queue size
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140515' into staging
migration/next for 20140515
# gpg: Signature made Thu 15 May 2014 02:32:25 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found
* remotes/juanquintela/tags/migration/20140515:
usb: fix up post load checks
migration: show average throughput when migration finishes
savevm: Remove all the unneeded version_minimum_id_old (rest)
savevm: Remove all the unneeded version_minimum_id_old (usb)
Split ram_save_block
arch_init: Simplify code for load_xbzrle()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/kvm/uq/master:
pc: port 92 reset requires a low->high transition
cpu: make CPU_INTERRUPT_RESET available on all targets
apic: do not accept SIPI on the bootstrap processor
target-i386: preserve FPU and MSR state on INIT
target-i386: fix set of registers zeroed on reset
kvm: forward INIT signals coming from the chipset
kvm: reset state from the CPU's reset method
target-i386: the x86 CPL is stored in CS.selector - auto update hflags accordingly.
target-i386: set eflags prior to calling cpu_x86_load_seg_cache() in seg_helper.c
target-i386: set eflags and cr0 prior to calling cpu_x86_load_seg_cache() in smm_helper.c
target-i386: set eflags prior to calling svm_load_seg_cache() in svm_helper.c
pci-assign: limit # of msix vectors
pci-assign: Fix a bug when map MSI-X table memory failed
kvm: make one_reg helpers available for everyone
target-i386: Remove unused data from local array
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Correct post load checks:
1. dev->setup_len == sizeof(dev->data_buf)
seems fine, no need to fail migration
2. When state is DATA, passing index > len
will cause memcpy with negative length,
resulting in heap overflow
First of the issues was reported by dgilbert.
Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
After previous Peter patch, they are redundant. This way we don't
assign them except when needed. Once there, there were lots of case
where the ".fields" indentation was wrong:
.fields = (VMStateField []) {
and
.fields = (VMStateField []) {
Change all the combinations to:
.fields = (VMStateField[]){
The biggest problem (appart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
After previous Peter patch, they are redundant. This way we don't
assign them except when needed. Once there, there were lots of case
where the ".fields" indentation was wrong:
.fields = (VMStateField []) {
and
.fields = (VMStateField []) {
Change all the combinations to:
.fields = (VMStateField[]){
The biggest problem (appart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
In fill_prefetch_fifo(), if the device we are reading from is 16 bit,
then we must not try to transfer an odd number of bytes into the FIFO.
This could otherwise have resulted in our overrunning the prefetch.fifo
array by one byte.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
We don't implement very much of the GPTM TAR register, and what we
do is wrong. The "are we in RT mode?" field is in s->config, not
s->control. Correct this, use LOG_UNIMP rather than hw_error()
for the cases we don't support, and avoid an unlabelled fallthrough
that makes Coverity complain.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Add casts to avoid potentially overflowing the multiplications
of 32 bit quantities in exynos4210_ltick_recalc_count().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Add missing (uint32_t) casts in cases where we're trying to
put a uint16_t value into the top half of a 32-bit field.
These were already present in some but not all places.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
When writing to the YEARS_REG register, if the year value is
99 then the multiplication by 31536000 will overflow into
the sign bit of a 32 bit value and then be erroneously
sign-extended if time_t is 64 bits. Add a cast to avoid this.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Commit 191946c moved the code to handle padding to minimum
length from after the handling of the CRC to before it.
This means that the CRC code doesn't need to cope with the
possibility that the size is less than 60; remove this
dead code.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Add missing 'break' after handling of AW_A10_PIC_BASE_ADDR write.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Convert this device to use vmstate for its save/load, including
providing a post_load function that sanitizes inbound data to
avoid possible buffer overflows if it is malicious.
The sanitizing fixes CVE-2013-4532 (though nobody should be
relying on the security properties of most of the unmaintained
ARM board models anyway, and migration doesn't actually
work on this board due to issues in other device models).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
The rx_fifo pointer is awkward to migrate, and is actually
redundant since it is always possible to determine it from
the current rx[].len/.data and rx_fifo_len. Remove both
rx_fifo and rx_fifo_len from the state, replacing them with
a simple rx_fifo_offset which points at the current location
in the RX fifo.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Fix various debug format strings which were incorrect for the
data type, so that building with debug enabled is possible.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Packet transmission for the stellaris ethernet controller can be triggered
in one of two ways:
* by setting a threshold value in the THR register; when the FIFO
fill level reaches the threshold, the h/w starts transmitting.
Software has to finish filling the FIFO before the transmit
process completes to avoid a (silent) underrun
* by software writing to the TR register to explicitly trigger
transmission
Since QEMU transmits packets instantaneously (from the guest's
point of view), implement "transmit based on threshold" with
our existing mechanism of "transmit as soon as we have the whole
packet", with the additional wrinkle that we don't transmit if
the packet size is below the specified threshold, and implement
"transmit by specific request" properly.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
The datasheet is clear that the frame length written to the DATA
register is actually stored in the TX FIFO; this means we don't
need to keep both tx_frame_len and tx_fifo_len state separately.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
The PADEN bit in the transmit control register enables padding of short
data packets out to the required minimum length. However a typo here
meant we were adjusting tx_fifo_len rather than tx_frame_len, so the
padding didn't actually happen. Fix this bug.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: qemu-stable@nongnu.org
The current tx_fifo code has a corner case where the guest can overrun
the fifo buffer: if automatic CRCs are disabled we allow the guest to write
the CRC word even if there isn't actually space for it in the FIFO.
The datasheet is unclear about exactly how the hardware deals with this
situation; the most plausible answer seems to be that the CRC word is
just lost.
Implement this fix by separating the "can we stuff another word in the
FIFO" logic from the "should we transmit the packet now" check. This
also moves us closer to the real hardware, which has a number of ways
it can be configured to trigger sending the packet, some of which we
don't implement.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: qemu-stable@nongnu.org
After commit 767adce2d, they are redundant. This way we don't assign them
except when needed. Once there, there were lots of cases where the ".fields"
indentation was wrong:
.fields = (VMStateField []) {
and
.fields = (VMStateField []) {
Change all the combinations to:
.fields = (VMStateField[]){
The biggest problem (apart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.
Signed-off-by: Juan Quintela <quintela@redhat.com>
[PMM: fixed minor conflict, corrected commit message typos]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The PIIX datasheet says that "before another INIT pulse can be
generated via [port 92h], [bit 0] must be written back to a
zero.
This bug is masked right now because a full reset will clear the
value of port 92h. But once we implement soft reset correctly,
the next attempt to enable the A20 line by setting bit 1 (and
leaving the others untouched) will cause another reset.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
SIPI interrupts are ignored on the bootstrap. Never accept one.
Cc: Andreas Faerber <afaerber@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
KVM only supports MSIX table size up to 256 vectors,
but some assigned devices support more vectors,
at the moment attempts to assign them fail with EINVAL.
Tweak the MSIX capability exposed to guest to limit table size
to a supported value.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Gonglei <arei.gonglei@huawei.com>
Cc: qemu-stable@nongnu.org
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When mmapping memory for the MSI-X table failsthe dev->msix_table is
not set to NULL and assigned_dev_unregister_msix_mmio() will cause
a segfault when trying to munmap it.
Signed-off-by: Gonglei Arei <arei.gonglei@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
* remotes/bonzini/configure:
libcacard: remove libcacard-specific CFLAGS and LIBS from global vars
build: simplify and fix fix-obj-vars
build: convert some obj-specific CFLAGS to use new foo.o-cflags syntax
build: add support for per-object -cflags and -libs to all rules
Makefile: use $(INSTALL_LIB) for modules not $(INSTALL_PROG)
Makefile.target: use $(INSTALL_PROG) for installing, not $(INSTALL)
Makefile: strip tools and modules too
build: simplify Makefile.target around unnest-vars invocations
build: simplify Makefile.target a bit, use just one rule for softmmu
build: Fix per-object variables for Makefile.target
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There was some modulo logic to ensure that Microblaze always booted into
physical RAM regardless of the elf entry. Removed it, as QEMU should fail
gracefully when given a bad elf, rather than attempt to run it.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
The TCSR register has only 11 valid bits. This is now used by the
linux kernel to auto-detect endianness, and causes Linux 3.15-rc1
and later to hang when run under qemu-microblaze. Mask valid bits
before writing the register to solve the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
The MER register only has two valid bits. This is now used by
the linux kernel to auto-detect endianness, and causes Linux 3.15-rc1
and later to hang when run under qemu-microblaze. Mask valid bits before
writing the register to solve the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
[Edgar: Untabified]
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
It's a loop from i < num_sg and the array is VIRTQUEUE_MAX_SIZE - so
it's OK if the value read is VIRTQUEUE_MAX_SIZE.
Not a big problem in practice as people don't use
such big queues, but it's inelegant.
Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Currently all what's needed for single file libcacard/vcard_emul_nss.c
(libnss cflags) and hw/usb/ccid-card-emulated.c (libcacard includes)
together with the libs is added to global QEMU_CFLAGS and libs_softmmu.
Use the cflags only where really used (for two mentioned files), and
libs only where needed.
While at it, rename variables to better reflect reality: libcacard_*
is really nss_*.
This needs a bit more tweaking: $(NSS_LIBS) should not contain $glib_libs
(ditto for _cflags). But in order to fix it, some more preparations
should be made first. So add a FIXME comment.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Among the callers, only assigned_initfn() should set the monitor's stored
error. Other callers may run in contexts where the monitor's stored error
makes no sense. For example:
assigned_dev_pci_write_config()
assigned_dev_update_msix()
assign_intx()
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Also, change the return type to "void"; the function is static (with a
sole caller) and the negative errno values are not distinguished from each
other.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
The return type is also changed from "int" to "void", because it was used
in a success vs. failure sense only (the caller didn't distinguish error
codes from each other, and even assigned_dev_register_msix_mmio() masked
mmap()'s errno values with a common -EFAULT).
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Propagate any errors while adding PCI capabilities to
assigned_device_pci_cap_init(). We'll continue the propagation upwards
when assigned_device_pci_cap_init() becomes a leaf itself (when none of
its callees will report errors internally any longer when detecting and
returning them).
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
... and rebase pci_add_capability() to it.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Rename check_irqchip_in_kernel() to verify_irqchip_in_kernel(), so that
the name reflects our expectation better. Rather than returning a bool,
make it do nothing or set an Error.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
get_real_id() has two thin wrappers (and no other callers),
get_real_vendor_id() and get_real_device_id(); it's easiest to convert
them in one fell swoop.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This allows us to report the entire error with one error_report() call,
easing future error propagation.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Propagate any errors in monitor fd handling up to get_real_device(), and
report them there. We'll continue the propagation upwards when
get_real_device() becomes a leaf itself (when none of its callees will
report errors internally any longer when detecting and returning an
error).
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
eviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
* remotes/sstabellini/xen-140507-2:
xen_disk: add discard support
pass an inclusive address range to xc_domain_pin_memory_cacheattr
xen: factor out common functions
xen: move Xen HVM files under hw/i386/xen
xen: move Xen PV machine files to hw/xenpv
qemu-xen: free all the pirqs for msi/msix when driver unload
exec: Limit translation limiting in address_space_translate to xen
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This fixes warnings from the static code analysis (smatch).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This fixes a warning from the static code analysis (smatch).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Implement discard support for xen_disk. It makes use of the existing
discard code in qemu.
The discard support is enabled unconditionally. The tool stack may
provide a property "discard-enable" in the backend node to optionally
disable discard support. This is helpful in case the backing file was
intentionally created non-sparse to avoid fragmentation.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
MAINTAINERS updated with link to the security process documentation
apic version modified to make more guests happy
On top of that, bugfixes all over the place
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc,net,MAINTAINERS,build updates
MAINTAINERS updated with link to the security process documentation
apic version modified to make more guests happy
On top of that, bugfixes all over the place
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Wed 07 May 2014 17:15:29 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream:
configure: make source tree build more robust
MAINTAINERS: addresses for responsible disclosure
pm_smbus: correctly report unclaimed cycles
smbus: return -1 if nothing found at the given address
smbus: allow returning an error from reads
apic: use emulated lapic version 0x14 on pc machines >= 2.1
pc: add compat_props placeholder for 2.0 machine type
i8259: don't abort when trying to use level sensitive irqs
acpi: fix tables for no-hpet configuration
acpi-build: properly decrement objects' reference counters
acpi/pcihp.c: Rewrite acpi_pcihp_get_bsel using object_property_get_int
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Pirqs are not freed when driver unload, then new pirqs are allocated when
driver reload. This could exhaust pirqs if do it in a loop.
This patch fixes the bug by freeing pirqs when ENABLE bit is cleared in
msi/msix control reg.
There is also other way of fixing it such as reuse pirqs between driver reload,
but this way is better.
Xen-devel: http://marc.info/?l=xen-devel&m=136800120304275&w=2
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add "version" property to local apic, and have it default to
0x14 for pc machines starting at 2.1. For compatibility with
previous releases, pc machines up to 2.0 will have their local
apic version set to 0x11.
Signed-off-by: Gabriel L. Somlo <somlo@cmu.edu>
Acked-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add the "boilerplate" necessary for subsequent patches to
simply drop in compat_props for pc machines 2.0 and older.
This patch contains no functional changes.
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Acked-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This is a guest-triggerable error, as seen when using Xenix 2.3.4.
Replace hw_error by LOG_UNIMPL, so that guests can continue.
With this patch, I can install and use Xenix 2.3.4a without any problem.
I can also start installation of Xenix 2.3.4q, but it fails due to not
finding an hard disk.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Two patches deal with address translation, one fixes a problem in the
channel subsystem code.
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Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20140507' into staging
Some improvements for s390.
Two patches deal with address translation, one fixes a problem in the
channel subsystem code.
# gpg: Signature made Wed 07 May 2014 09:29:30 BST using RSA key ID C6F02FAF
# gpg: Can't check signature: public key not found
* remotes/cohuck/tags/s390x-20140507:
s390x/css: Don't save orb in subchannel.
s390x/helper: Added format control bit to MMU translation
s390x/helper: Fixed real-to-absolute address translation
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140505' into staging
migration/next for 20140505
# gpg: Signature made Mon 05 May 2014 21:27:24 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found
* remotes/juanquintela/tags/migration/20140505: (36 commits)
migration: expose xbzrle cache miss rate
migration: expose the bitmap_sync_count to the end
migration: Add counts of updating the dirty bitmap
XBZRLE: Fix one XBZRLE corruption issues
migration: remove duplicate code
Coverity: Fix failure path for qemu_accept in migration
Init the XBZRLE.lock in ram_mig_init
Provide init function for ram migration
Count used RAMBlock pages for migration_dirty_pages
Make qemu_peek_buffer loop until it gets it's data
Disallow outward migration while awaiting incoming migration
virtio: validate config_len on load
virtio-net: out-of-bounds buffer write on load
openpic: avoid buffer overrun on incoming migration
ssi-sd: fix buffer overrun on invalid state load
savevm: Ignore minimum_version_id_old if there is no load_state_old
usb: sanity check setup_index+setup_len in post_load
vmstate: s/VMSTATE_INT32_LE/VMSTATE_INT32_POSITIVE_LE/
virtio-scsi: fix buffer overrun on invalid state load
zaurus: fix buffer overrun on invalid state load
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* -device / device_add assertion fix
* QEMUMachine conversion to MachineClass
* Device error handling improvements
* QTest cleanups and test cases for some more PCI devices
* PortIO memory leak fixes
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Merge remote-tracking branch 'remotes/afaerber/tags/qom-devices-for-peter' into staging
QOM/QTest infrastructure fixes and device conversions
* -device / device_add assertion fix
* QEMUMachine conversion to MachineClass
* Device error handling improvements
* QTest cleanups and test cases for some more PCI devices
* PortIO memory leak fixes
# gpg: Signature made Mon 05 May 2014 19:59:16 BST using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg: aka "Andreas Färber <afaerber@suse.com>"
* remotes/afaerber/tags/qom-devices-for-peter:
PortioList: Store PortioList in device state
tests: Add EHCI qtest
tests: Add ioh3420 qtest
tests: Add intel-hda qtests
tests: Add es1370 qtest
tests: Add ac97 qtest
qtest: Be paranoid about accept() addrlen argument
qtest: Add error reporting to socket_accept()
qtest: Assure that init_socket()'s listen() does not fail
MAINTAINERS: Document QOM
arm: Clean up fragile use of error_is_set() in realize() methods
qom: Clean up fragile use of error_is_set() in set() methods
hw: Consistently name Error ** objects errp, and not err
hw: Consistently name Error * objects err, and not errp
machine: Remove QEMUMachine indirection from MachineClass
machine: Replace QEMUMachine by MachineClass in accelerator configuration
vl.c: Replace QEMUMachine with MachineClass in QEMUMachineInitArgs
machine: Copy QEMUMachine's fields to MachineClass
machine: Remove obsoleted field from QEMUMachine
qdev: Fix crash by validating the object type
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
acpi build tried to add offset of hpet table to rsdt even when hpet was
disabled. If no tables follow hpet, this could lead to a malformed
rsdt.
Fix it up.
To avoid such errors in the future, rearrange code slightly to make it
clear that acpi_add_table stores the offset of the following table - not
of the previous one.
Reported-by: TeLeMan <geleman@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: qemu-stable@nongnu.org
Object returned by object_property_get_qobject needs its reference counter to
be decremented when it is not needed by caller anymore.
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
acpi_pcihp_get_bsel implements functionality of object_property_get_int for
specific property named ACPI_PCIHP_PROP_BSEL, but fails to decrement object's
reference counter properly. Rewriting it using generic object_property_get_int
serves two purposes: reducing code duplication and fixing memory leak.
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Current css code saves the operation request block (orb) in the
subchannel structure for later consumption by the start function
handler. This might make sense for asynchronous execution of the
start function (which qemu doesn't support), but not in our case;
it would even be wrong since orb contains a reference to a local
variable in the base ssch handler.
Let's just pass the orb through the start function call chain for
ssch; for rsch, we can pass NULL as the backend function does not
use any information passed via the orb there.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Malformed input can have config_len in migration stream
exceed the array size allocated on destination, the
result will be heap overflow.
To fix, that config_len matches on both sides.
CVE-2014-0182
Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
--
v2: use %ix and %zx to print config_len values
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4149 QEMU 1.3.0 out-of-bounds buffer write in
virtio_net_load()@hw/net/virtio-net.c
> } else if (n->mac_table.in_use) {
> uint8_t *buf = g_malloc0(n->mac_table.in_use);
We are allocating buffer of size n->mac_table.in_use
> qemu_get_buffer(f, buf, n->mac_table.in_use * ETH_ALEN);
and read to the n->mac_table.in_use size buffer n->mac_table.in_use *
ETH_ALEN bytes, corrupting memory.
If adversary controls state then memory written there is controlled
by adversary.
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4534
opp->nb_cpus is read from the wire and used to determine how many
IRQDest elements to read into opp->dst[]. If the value exceeds the
length of opp->dst[], MAX_CPU, opp->dst[] can be overrun with arbitrary
data from the wire.
Fix this by failing migration if the value read from the wire exceeds
MAX_CPU.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4537
s->arglen is taken from wire and used as idx
in ssi_sd_transfer().
Validate it before access.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4541
s->setup_len and s->setup_index are fed into usb_packet_copy as
size/offset into s->data_buf, it's possible for invalid state to exploit
this to load arbitrary data.
setup_len and setup_index should be checked to make sure
they are not negative.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
As the macro verifies the value is positive, rename it
to make the function clearer.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4542
hw/scsi/scsi-bus.c invokes load_request.
virtio_scsi_load_request does:
qemu_get_buffer(f, (unsigned char *)&req->elem, sizeof(req->elem));
this probably can make elem invalid, for example,
make in_num or out_num huge, then:
virtio_scsi_parse_req(s, vs->cmd_vqs[n], req);
will do:
if (req->elem.out_num > 1) {
qemu_sgl_init_external(req, &req->elem.out_sg[1],
&req->elem.out_addr[1],
req->elem.out_num - 1);
} else {
qemu_sgl_init_external(req, &req->elem.in_sg[1],
&req->elem.in_addr[1],
req->elem.in_num - 1);
}
and this will access out of array bounds.
Note: this adds security checks within assert calls since
SCSIBusInfo's load_request cannot fail.
For now simply disable builds with NDEBUG - there seems
to be little value in supporting these.
Cc: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4540
Within scoop_gpio_handler_update, if prev_level has a high bit set, then
we get bit > 16 and that causes a buffer overrun.
Since prev_level comes from wire indirectly, this can
happen on invalid state load.
Similarly for gpio_level and gpio_dir.
To fix, limit to 16 bit.
Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4539
s->precision, nextprecision, function and nextfunction
come from wire and are used
as idx into resolution[] in TSC_CUT_RESOLUTION.
Validate after load to avoid buffer overrun.
Cc: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4538
s->cmd_len used as index in ssd0323_transfer() to store 32-bit field.
Possible this field might then be supplied by guest to overwrite a
return addr somewhere. Same for row/col fields, which are indicies into
framebuffer array.
To fix validate after load.
Additionally, validate that the row/col_start/end are within bounds;
otherwise the guest can provoke an overrun by either setting the _end
field so large that the row++ increments just walk off the end of the
array, or by setting the _start value to something bogus and then
letting the "we hit end of row" logic reset row to row_start.
For completeness, validate mode as well.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4533
s->rx_level is read from the wire and used to determine how many bytes
to subsequently read into s->rx_fifo[]. If s->rx_level exceeds the
length of s->rx_fifo[] the buffer can be overrun with arbitrary data
from the wire.
Fix this by validating rx_level against the size of s->rx_fifo.
Cc: Don Koch <dkoch@verizon.com>
Reported-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Don Koch <dkoch@verizon.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4535
CVE-2013-4536
Both virtio-block and virtio-serial read,
VirtQueueElements are read in as buffers, and passed to
virtqueue_map_sg(), where num_sg is taken from the wire and can force
writes to indicies beyond VIRTQUEUE_MAX_SIZE.
To fix, validate num_sg.
Reported-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-6399
vdev->queue_sel is read from the wire, and later used in the
emulation code as an index into vdev->vq[]. If the value of
vdev->queue_sel exceeds the length of vdev->vq[], currently
allocated to be VIRTIO_PCI_QUEUE_MAX elements, subsequent PIO
operations such as VIRTIO_PCI_QUEUE_PFN can be used to overrun
the buffer with arbitrary data originating from the source.
Fix this by failing migration if the value from the wire exceeds
VIRTIO_PCI_QUEUE_MAX.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4530
pl022.c did not bounds check tx_fifo_head and
rx_fifo_head after loading them from file and
before they are used to dereference array.
Reported-by: Michael S. Tsirkin <mst@redhat.com
Reported-by: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
4) CVE-2013-4529
hw/pci/pcie_aer.c pcie aer log can overrun the buffer if log_num is
too large
There are two issues in this file:
1. log_max from remote can be larger than on local
then buffer will overrun with data coming from state file.
2. log_num can be larger then we get data corruption
again with an overflow but not adversary controlled.
Fix both issues.
Reported-by: Anthony Liguori <anthony@codemonkey.ws>
Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4527 hw/timer/hpet.c buffer overrun
hpet is a VARRAY with a uint8 size but static array of 32
To fix, make sure num_timers is valid using VMSTATE_VALID hook.
Reported-by: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4526
Within hw/ide/ahci.c, VARRAY refers to ports which is also loaded. So
we use the old version of ports to read the array but then allow any
value for ports. This can cause the code to overflow.
There's no reason to migrate ports - it never changes.
So just make sure it matches.
Reported-by: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4151 QEMU 1.0 out-of-bounds buffer write in
virtio_load@hw/virtio/virtio.c
So we have this code since way back when:
num = qemu_get_be32(f);
for (i = 0; i < num; i++) {
vdev->vq[i].vring.num = qemu_get_be32(f);
array of vqs has size VIRTIO_PCI_QUEUE_MAX, so
on invalid input this will write beyond end of buffer.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
PortioList is an abstraction used for construction of MemoryRegionPortioList
from MemoryRegionPortio. It can be used later to unmap created memory regions.
It also requires proper cleanup because some of the memory inside is allocated
dynamically.
By moving PortioList ot device state we make it possible to cleanup later and
avoid leaking memory.
This change spans several target platforms. The following testcases cover all
changed lines:
qemu-system-ppc -M prep
qemu-system-i386 -vga qxl
qemu-system-i386 -M isapc -soundhw adlib -device ib700,id=watchdog0,bus=isa.0
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Using error_is_set(ERRP) to find out whether a function failed is
either wrong, fragile, or unnecessarily opaque. It's wrong when ERRP
may be null, because errors go undetected when it is. It's fragile
when proving ERRP non-null involves a non-local argument. Else, it's
unnecessarily opaque (see commit 84d18f0).
I guess the error_is_set(errp) in the DeviceClass realize() methods
are merely fragile right now, because I can't find a call chain that
passes a null errp argument.
Make the code more robust and more obviously correct: receive the
error in a local variable, then propagate it through the parameter.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Using error_is_set(ERRP) to find out whether a function failed is
either wrong, fragile, or unnecessarily opaque. It's wrong when ERRP
may be null, because errors go undetected when it is. It's fragile
when proving ERRP non-null involves a non-local argument. Else, it's
unnecessarily opaque (see commit 84d18f0).
I guess the error_is_set(errp) in the ObjectProperty set() methods are
merely fragile right now, because I can't find a call chain that
passes a null errp argument.
Make the code more robust and more obviously correct: receive the
error in a local variable, then propagate it through the parameter.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
No need to go through qemu_machine field. Use
MachineClass fields directly.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
In order to eliminate the QEMUMachine indirection,
add its fields directly to MachineClass.
Do not yet remove qemu_machine field because it is
still in use by sPAPR.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
[AF: Copied fields for sPAPR, too]
Signed-off-by: Andreas Färber <afaerber@suse.de>
