usbnet_receive already drops packet if rndis_state is not
RNDIS_DATA_INITIALIZED, and queues packet if in buffer is not available.
The only difference is s->dev.config but that is similar to rndis_state.
Drop usbnet_can_receive and move these checks to usbnet_receive, so that
we don't need to explicitly flush the queue when s->dev.config changes
value.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-5-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
nic_receive already checks the conditions and drop packets if false.
Due to the new semantics since 6e99c63 ("net/socket: Drop
net_socket_can_send"), having .can_receive returning 0 requires us to
explicitly flush the queued packets when the conditions are becoming
true, but queuing the packets when guest driver is not ready doesn't
make much sense.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-4-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
pcnet_receive already checks the conditions and drop packets if false.
Due to the new semantics since 6e99c63 ("net/socket: Drop
net_socket_can_send"), having .can_receive returning 0 requires us to
explicitly flush the queued packets when the conditions are becoming
true, but queuing the packets when guest driver is not ready doesn't
make much sense.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-3-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-2-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The network mcf_fec driver emulated receive side method is returning a
result of 0 causing the network layer to disable receive for this emulated
device. This results in the guest only ever receiving one packet.
Fix the recieve side processing to return the number of bytes that we
passed back through to the guest.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435296436-12152-5-git-send-email-gerg@uclinux.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The Linux fec driver needs at least basic phy support to probe and work.
The current qemu mcf_fec emulation has no support for the reading or
writing of the MDIO lines to access an attached phy.
This code adds a very simple set of register results for a fixed phy
setup - very similar to that used on an m5208evb board. This is enough
to probe and identify an emulated attached phy.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435296436-12152-4-git-send-email-gerg@uclinux.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* SCSI fixes (including CVE-2015-5158)
* RCU fixes
* Framebuffer logic to set DIRTY_MEMORY_VGA
* Fix compiler warning for --disable-vnc
* qemu-doc fixes
* x86 TCG pasto fix
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* qemu-char fixes
* SCSI fixes (including CVE-2015-5158)
* RCU fixes
* Framebuffer logic to set DIRTY_MEMORY_VGA
* Fix compiler warning for --disable-vnc
* qemu-doc fixes
* x86 TCG pasto fix
# gpg: Signature made Fri Jul 24 12:57:52 2015 BST using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream:
target-i386/FPU: a misprint in helper_fistll_ST0
qemu-doc: fix typos
framebuffer: set DIRTY_MEMORY_VGA on RAM that is used for the framebuffer
memory: count number of active VGA logging clients
vl: Fix compiler warning for builds without VNC
scsi: Handle no media case for scsi_get_configuration
rcu: actually register threads that have RCU read-side critical sections
scsi: fix buffer overflow in scsi_req_parse_cdb (CVE-2015-5158)
vnc: fix memory leak
qemu-char: Fix missed data on unix socket
qemu-char: handle EINTR for TCP character devices
exec.c: Use atomic_rcu_read() to access dispatch in memory_region_section_get_iotlb()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The MemoryRegionSection contains enough information to access the
RAM region underlying the framebuffer, and can be cached inside the
display device.
By doing this, the new framebuffer_update_memory_section function can
enable dirty memory logging on the relevant RAM region. The function
must be called whenever the stride or base of the framebuffer changes;
a simple way to cover these cases is to call it on every full frame
invalidation, which is a rare case.
framebuffer_update_display now works entirely on a MemoryRegionSection,
without going through cpu_physical_memory_map/unmap.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Currently, scsi_get_configuration always returns a current
profile (DVD or CD), even when there is actually no media present.
By comparison, ide/atapi uses a default profile of 0 (MMC_PROFILE_NONE)
for this case and checks for tray_open, so let's do the same for scsi.
This fixes a problem I'm seeing with Fedora 22 guests where systemd
cdrom_id fails to unmount after a QEMU-initiated eject against a
scsi cdrom device because it believes the media is still present
(but unreadable).
Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Message-Id: <1436986352-10695-1-git-send-email-mjrosato@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This is a guest-triggerable buffer overflow present in QEMU 2.2.0
and newer. scsi_cdb_length returns -1 as an error value, but the
caller does not check it.
Luckily, the massive overflow means that QEMU will just SIGSEGV,
making the impact much smaller.
Reported-by: Zhu Donghai (朱东海) <donghai.zdh@alibaba-inc.com>
Fixes: 1894df0281
Reviewed-by: Fam Zheng <famz@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
bootindex was incorrectly changed to a device Property during the
platform code split, resulting in it no longer working. Remove it.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: qemu-stable@nongnu.org # v2.3+
The RTL8168 quirk correctly describes using bit 31 as a signal to
mark a latch/completion, but the code mistakenly uses bit 28. This
causes the Realtek driver to spin on this register for quite a while,
20k cycles on Windows 7 v7.092 driver. Then it gets frustrated and
tries to set the bit itself and spins for another 20k cycles. For
some this still results in a working driver, for others not. About
the only thing the code really does in its current form is protect
the guest from sneaking in writes to the real hardware MSI-X table.
The fix is obviously to use bit 31 as we document that we should.
The other problem doesn't seem to affect current drivers as nobody
seems to use these window registers for writes to the MSI-X table, but
we need to use the stored data when a write is triggered, not the
value of the current write, which only provides the offset.
Note that only the Windows drivers from Realtek seem to use these
registers, the Microsoft drivers provided with Windows 8.1 do not
access them, nor do Linux in-kernel drivers.
Link: https://bugs.launchpad.net/qemu/+bug/1384892
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: qemu-stable@nongnu.org # v2.1+
The new spice-server function to limit the number of monitors (0.12.6)
changed while development from spice_qxl_set_monitors_config_limit to
spice_qxl_max_monitors (accepted upstream).
By mistake I post patch with former name.
This patch fix the function name.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
Acked-by: Martin Kletzander <mkletzan@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Version: GnuPG v1
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Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging
# gpg: Signature made Mon Jul 20 19:27:04 2015 BST using RSA key ID AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: FAEB 9711 A12C F475 812F 18F2 88A9 064D 1835 61EB
# Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76 CBD0 7DEF 8106 AAFC 390E
* remotes/jnsnow/tags/ide-pull-request:
tests: Fix broken targets check-report-qtest-*
ahci: Force ICC bits in PxCMD to zero
qtest/ide: add another short PRDT test flavor
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
True is the default.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1435734647-8371-4-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
True is the default.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1435734647-8371-3-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
True is the default.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1435734647-8371-2-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Convert partially summed packets to be fully checksummed.
In case csum offloaded packet, vmxnet3 implementation always passes an
RxCompDesc with the "Checksum calculated and found correct" notification
to the OS. This emulates the observed ESXi behavior.
Therefore, if packet has the NEEDS_CSUM bit set, we must calculate and
place a fully computed checksum into the tcp/udp header. Otherwise, the
OS driver will receive a checksum-correct indication but with the actual
tcp/udp checksum field having just the pseudo header csum value.
If host OS performs forwarding, it will forward an incorrectly
checksummed packet.
Signed-off-by: Dana Rubin <dana.rubin@ravellosystems.com>
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Message-id: 1436864116-19154-3-git-send-email-shmulik.ladkani@ravellosystems.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Separate RX packet protocol parsing out of 'vmxnet_rx_pkt_attach_data'.
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Message-id: 1436864116-19154-2-git-send-email-shmulik.ladkani@ravellosystems.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The AHCI spec requires that the HBA sets the ICC bits to zero after the
ICC change is done. Since we don't do any ICC change, force the bits to
zero all the time.
This fixes delays with some OSs (e.g. OpenBSD) waiting for the ICC bits
to change to 0.
Signed-off-by: Stefan Fritsch <sf@sfritsch.de>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: E1ZFpg7-00027N-HW@eru.sfritsch.de
Signed-off-by: John Snow <jsnow@redhat.com>
Commit e0cf11f31c ("timer: Use a single
definition of NSEC_PER_SEC for the whole codebase") renamed
NANOSECONDS_PER_SECOND to NSEC_PER_SEC.
On Mac OS X there is a <dispatch/time.h> system header which also
defines NSEC_PER_SEC. This causes compiler warnings.
Let's use the old name instead. It's longer but it doesn't clash.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1436364609-7929-1-git-send-email-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The only notable thing here is vhost-user multiqueue
revert. We'll work on making it stable in 2.5,
reverting now means we won't have to maintain
bug for bug compability forever.
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, vhost, pc fixes for 2.4
The only notable thing here is vhost-user multiqueue
revert. We'll work on making it stable in 2.5,
reverting now means we won't have to maintain
bug for bug compability forever.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon Jul 20 12:24:00 2015 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-net: remove virtio queues if the guest doesn't support multiqueue
virtio-net: Flush incoming queues when DRIVER_OK is being set
pci_add_capability: remove duplicate comments
virtio-net: unbreak any layout
Revert "vhost-user: add multi queue support"
ich9: fix skipped vmstate_memhp_state subsection
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
commit da51a335 adds all queues in .realize(). But if the
guest doesn't support multiqueue, we forget to remove them. And
we cannot handle the ctrl vq corretly. The guest will hang.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
This patch fixes network hang after "stop" then "cont", while network
packets keep arriving.
Tested both manually (tap, host pinging guest) and with Jason's qtest
series (plus his "[PATCH 2.4] socket: pass correct size in
net_socket_send()" fix).
As virtio_net_set_status is called when guest driver is setting status
byte and when vm state is changing, it is a good opportunity to flush
queued packets.
This is necessary because during vm stop the backend (e.g. tap) would
stop rx processing after .can_receive returns false, until the queue is
explicitly flushed or purged.
The other interesting condition in .can_receive, virtio_queue_ready(),
is handled by virtio_net_handle_rx() when guest kicks; the 3rd condition
is invalid queue index which doesn't need flushing.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Commit 032a74a1c0
("virtio-net: byteswap virtio-net header") breaks any layout by
requiring out_sg[0].iov_len >= n->guest_hdr_len. Fixing this by
copying header to temporary buffer if swap is needed, and then use
this buffer as part of out_sg.
Fixes 032a74a1c0
("virtio-net: byteswap virtio-net header")
Cc: qemu-stable@nongnu.org
Cc: clg@fr.ibm.com
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This reverts commit 830d70db69.
The interface isn't fully backwards-compatible, which is bad.
Let's redo this properly after 2.4.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
By declaring another .subsections array for vmstate_tco_io_state made
vmstate_memhp_state not registered anymore. There must be only one
.subsections array for all subsections.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Amit Shah <amit.shah@redhat.com>
Reported-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
This patch triggers timer only when guest requests for
entropy. As soon as first request from guest for entropy
comes we set the timer. Timer bumps up the quota value
when it gets triggered.
Signed-off-by: Pankaj Gupta <pagupta@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Message-Id: <1436962608-9961-2-git-send-email-pagupta@redhat.com>
[Re-worded patch subject, removed extra whitespace -- Amit]
Signed-off-by: Amit Shah <amit.shah@redhat.com>
This reverts commit 4e8cfbe114.
We should not poll via timer, and with ccid being fixed
to properly notify us about pending transfers we don't have to.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Coverity thinks the fallthroughs are smelly. They are correct, but
everything else in this function is like "wut?".
Refer explicitly to bits 8 and 9 of hs->kbd.modifiers instead of
shifting right first and using (1 << 7). Document what the scancode
is when hid_code is 0xe0. And add plenty of comments.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Drop from include/standard-headers/linux/input.h
Add to hw/input/virtio-input-host.c instead.
That allows to build virtio-input (except pass-through) on windows.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
commit 5cce173 introduced virtio-input segfault, This patch fixes it.
Signed-off-by: Lin Ma <lma@suse.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This patch allow to limit number of heads using qxl driver. By default
qxl driver is not limited on any kind on head use so can decide to use
as much heads.
libvirt has this as a video card parameter (actually set to 1 but not
used). This parameter will allow to limit setting a use can do (which
could be confusing).
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The Linux kernel on aarch64 creates a page table entry at early bootup
that spans the 2MB range on memory spanning the fdt start address:
[ ALIGN_DOWN(fdt, 2MB) ... ALIGN_DOWN(fdt, 2MB) + 2MB ]
This means that when our current 4k alignment happens to fall at the end
of the aligned region, Linux tries to access memory that is not mapped.
The easy fix is to instead increase the alignment to 2MB, making Linux's
logic always succeed.
We leave the existing 4k alignment for 32bit kernels to not cause any
regressions due to space constraints.
Reported-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
commit 213941d73b ("virtio-ccw: migrate ->revision") broke
migration:
2015-07-07T11:22:55.570968Z qemu-system-s390x: VQ 39 address 0x0 inconsistent with Host index 0x100
2015-07-07T11:22:55.571008Z qemu-system-s390x: error while loading state for instance 0x0 of
If thinint support is active, the config_load function returns early.
Make sure to load the revision all the time.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Fixes: 213941d73b ("virtio-ccw: migrate ->revision")
Message-Id: <1436269643-66303-1-git-send-email-borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
The diag288 watchdog is no sysbus device, therefore it doesn't get
triggered on resets automatically using dc->reset.
Let's register the reset handler manually, so we get correctly notified
again when a system reset was requested. Also reset the watchdog on
subsystem resets that don't trigger a full system reset.
Signed-off-by: Xu Wang <gesaint@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Implement support in Identify and Get/Set Features to properly report
and allow to change the Volatile Write Cache status reported by the
virtual NVMe device.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Implement a real flush instead of faking it. This is especially important
as Qemu assume Write back cashing by default and thus requires a working
cache flush operation for data integrity.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
pc and virtio changes, bugfixes only.
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,virtio: fixes for 2.4
pc and virtio changes, bugfixes only.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon Jul 13 13:03:38 2015 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:
pc: fix reuse of pc-i440fx-2.4 in pc-i440fx-2.3
Revert "virtio-net: enable virtio 1.0"
virtio-pci: don't crash on illegal length
qdev: fix 64 bit properties
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
