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Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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This function was only introduced in glib 2.28.0.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This allows you to specify:
$ qemu -device virtio-rng-pci
And things will Just Work with a reasonable default.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This adds parameters to virtio-rng-pci to allow rate limiting the entropy a
guest receives. An example command line:
$ qemu -device virtio-rng-pci,max-bytes=1024,period=1000
Would limit entropy collection to 1Kb/s.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The Linux kernel already has a virtio-rng driver, this is the device
implementation.
When the guest asks for entropy from the virtio hwrng, it puts a buffer
in the vq. We then put entropy into that buffer, and push it back to
the guest.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
aliguori: converted to new RngBackend interface
aliguori: remove entropy needed event
aliguori: fix migration
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This backend talks EGD to a CharDriverState. A typical way to invoke this would
be:
qemu -chardev socket,host=localhost,port=1024,id=chr0 \
-object rng-egd,chardev=chr0,id=egd0 \
-device virtio-rng-pci,rng=egd0
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The filename can be overridden but it expects a non-blocking source of entropy.
A typical invocation would be:
qemu -object rng-random,id=rng0 -device virtio-rng-pci,rng=rng0
This can also be used with /dev/urandom by using the command line:
qemu -object rng-random,filename=/dev/urandom,id=rng0 \
-device virtio-rng-pci,rng=rng0
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
v1 -> v2
- merged header split patch into this one
v2 -> v3
- bug fix in rng-random (Paolo)
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This is the backend used by devices that need to request entropy.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
v1 -> v2
- Fix whitespace (Andreas Faerber)
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This will create a new QOM object in the '/objects' path. Note that properties
are set in order which allows for simple objects to be initialized entirely
with this option and then realized.
This option is roughly equivalent to -device but for things that are not
devices.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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While reading microMIPS decoding, I found a possible wrong opcode
encoding. According to [1] page 166, the bits 13..12 for MULTU is
0x01 rather than 0x00. Please review, thanks.
[1] MIPS Architecture for Programmers VolumeIV-e: The MIPS DSP
Application-Specific Extension to the microMIPS32 Architecture
Signed-off-by: Chen Wei-Ren <chenwj@iis.sinica.edu.tw>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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According to the MIPS Malta Developement Platform User's Manual, the
i8259 interrupt controller is supposed to be connected to the hardware
IRQ0, and the CBUS UART to the hardware interrupt 2.
In QEMU they are both connected to hardware interrupt 0, the CBUS UART
interrupt being wrong. This patch fixes that. It should be noted that
the irq array in QEMU includes the software interrupts, hence
env->irq[2] is the first hardware interrupt.
Cc: Ralf Baechle <ralf@linux-mips.org>
Reviewed-by: Eric Johnson <ericj@mips.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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into staging
vfio-pci: KVM INTx accel & common msi_get_message
* awilliam/tags/vfio-pci-for-qemu-1.3.0-rc0:
vfio-pci: Use common msi_get_message
vfio-pci: Add KVM INTx acceleration
linux-headers: Update to 3.7-rc5
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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We can get rid of our local version now that a helper exists.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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This makes use of the new level irqfd support enabling bypass of qemu
userspace both on INTx injection and unmask. This significantly
boosts the performance of devices making use of legacy interrupts (ex.
~60% better netperf TCP_RR scores for an e1000e assigned to a Linux
guest and booted with pci=nomsi). This also avoids flipping mmaps on
and off to simulate EOIs, so greatly improves performance of device
access in addition to interrupt latency.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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update-linux-headers.sh script run against Linux tag v3.7-rc5
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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* kraxel/pixman.v5:
pixman: cleanup properly on make distclean
pixman: add licensing info
pixman: build internal version early
pixman: pass cflags, add -fPIC
pixman: disable gtk
pixman: set --host for cross builds
pixman: add output dir to include path
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Eric Johnson <ericj@mips.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Pass on CFLAGS to the pixman configure script.
Add -fPIC to the cflags, needed to make the final link succeed.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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gtk is only needed to build test cases.
Disable it to simplify the build.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Set --host when calling pixman configure while doing cross builds so
pixman's autoconf picks up the cross build tools correctly.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Needed to make sure the (generated) pixman-version.h file is found.
Based on a patch from Blue Swirl.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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* bonzini/nbd-next:
nbd: fixes to read-only handling
hmp: add NBD server commands
nbd: disallow nbd-server-add before nbd-server-start
nbd: force read-only export for read-only devices
nbd: fix nbd_server_stop crash when no server was running
nbd: accept URIs
nbd: accept relative path to Unix socket
qemu-nbd: initialize main loop before block layer
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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We do not need BLKROSET if the kernel supports setting flags.
Also, always do BLKROSET even for a read-write export, otherwise
the read-only state remains "sticky" after the invocation of
"qemu-nbd -r".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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It works nicely with the QMP commands, but it adds useless complication
with HMP. In particular, see the following:
(qemu) nbd_server_add -w scsi0-hd0
(qemu) nbd_server_start -a localhost:10809
NBD server already exporting device scsi0-hd0
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This is the desired behavior for HMP, but it is a better choice for QMP as well.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This failed on the new assertion of qemu_set_fd_handler2:
qemu-system-x86_64: /home/pbonzini/work/upstream/qemu/iohandler.c:60: qemu_set_fd_handler2: Assertion `fd >= 0' failed.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The URI syntax is consistent with the Gluster syntax. Export names
are specified in the path, preceded by one or more (otherwise unused)
slashes.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Adding the "is_unix" member now will simplify the parsing of NBD URIs.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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qemu-nbd was broken because they initialized the block layer while
qemu_aio_context was still NULL.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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* bonzini/scsi-next:
virtio-scsi: use dma_context_memory
dma: Define dma_context_memory and use in sysbus-ohci
megasas: Correct target/lun mapping
scsi-disk: flush cache after disabling it
megasas: do not include block_int.h
scsi: remove superfluous call to scsi_device_set_ua
virtio-scsi: factor checks for VIRTIO_SCSI_S_DRIVER_OK when reporting events
scsi: do not return short responses for emulated commands
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Until address_space_rw was introduced, NULL was accepted as a
placeholder for DMA with no IOMMU (to address_space_memory).
This does not work anymore, and dma_context_memory needs to
be specified explicitly.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Define a new global dma_context_memory which is a DMAContext corresponding
to the global address_space_memory AddressSpace. This can be used by
sysbus peripherals like sysbus-ohci which need to do DMA.
In particular, use it in the sysbus-ohci device, which fixes a
segfault when attempting to use that device.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
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The structure to reference a logical drive has an unused field,
which can be used to carry the lun ID. This enabled seabios to
establish the proper target/LUN mapping.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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SBC says that "if an application client changes the WCE bit from one to
zero via a MODE SELECT command, then the device server shall write
any data in volatile cache to non-volatile medium before completing
the command".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Suggested by Laszlo Ersek.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Suggested by Laszlo Ersek.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The inquiry command, for the case of VPD=1, was returning short
responses; the number of returned bytes was just the number of bytes
in the request, without padding to the specified allocation length
with zero bytes. This is usually harmless, but it is a violation
of the SCSI specification.
To fix this, always pad with zero bytes to r->cmd.xfer in
scsi_disk_emulate_command, and return at most r->buflen bytes
(the size of the buffer for command data) rather than at most
buflen bytes (the number of bytes that was filled in).
Before this patch, "strace sg_inq -p0x83 /dev/sda" would report a
non-zero resid value. After this patch, it reports resid=0.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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* kraxel/usb.70:
ehci: fix migration
xhci: Fix some DMA host endian bugs
usb/combined-packet: Move freeing of combined to usb_combined_packet_remove()
xhci: Add support for packets with both data and an error status
ehci: Add support for packets with both data and an error status
ehci: Get rid of the magical PROC_ERR status
usb-redir: Allow packets to have both data and an error-status
usb: split packet result into actual_length + status
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Commit 5010d4dc618b6b8e7c21129c487c06f6493f71fc reorganized vmstate to
split core + pci, but got two little details wrong. Fix them.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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The xhci device does correct endian switches on the results of some DMAs
but not all. In particular, there are many DMAs of what are essentially
arrays of 32-bit integers which never get byteswapped. This causes them
to be interpreted incorrectly on big-endian hosts, since (as per the xhci
spec) these arrays are always little-endian in guest memory.
This patch adds some helper functions to fix these bugs. This may not be
all the endian bugs in the xhci code, but it's certainly some of them and
the Linux guest xhci driver certainly gets further with these fixes.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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