Commit Graph

26757 Commits

Author SHA1 Message Date
Dominik Dingel ff151f4ec9 S390: BIOS boot from given device
Use the passed device, if there is no device, use the first applicable device.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:30:01 +02:00
Dominik Dingel ba1509c0a9 S390: Add virtio-blk boot
If no kernel IPL entry is specified, boot the bios and pass if available
device information for the first boot device (as given by the boot index).

The provided information will be used in the next commit from the BIOS.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:30:01 +02:00
Dominik Dingel 2c4c71ee3a S390: Merging s390_ipl_cpu and s390_ipl_reset
There is no use in have this splitted in two functions.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:30:01 +02:00
Dominik Dingel e89e33e12e S390: BIOS create link to src folder for .img file
For *.img files, there will be a link created directly to the src folder,
like for all other blobs.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:30:00 +02:00
Dominik Dingel 1f7de85330 S390: BIOS check for file
Add a check if the BIOS blob exists before trying to load.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:30:00 +02:00
Alexey Kardashevskiy e0ff466c86 spapr_llan: fix device reenabling
Normally, the "tap" device is polled by QEMU if a guest NIC can
receive packets. If a guest NIC is stopped during transfer (rmmod or
ifdown), it may still have packets in a queue which have to be send
to the guest before QEMU enables polling of a "tap" interface via
tap_update_fd_handler().

However the spapr_llan device was missing the qemu_flush_queued_packets()
call so the tap_send_completed() callback was never called and therefore
"tap" interface polling was not enabled ever.

The patch fixes this problem.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:22:48 +02:00
Tiejun Chen 43d03f299a PPC: e500: correct params->ram_size with ram_size
We should sync params->ram_size after we fixup memory size on
a alignment boundary. Otherwise Guest would exceed the actual
memory region.

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:22:48 +02:00
Anton Blanchard 04559d5210 target-ppc: Add read and write of PPR SPR
Recent Linux kernels save and restore the PPR across exceptions
so we need to handle it.

Signed-off-by: Anton Blanchard <anton@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:22:48 +02:00
Anton Blanchard c05541ee19 target-ppc: Fix invalid SPR read/write warnings
Invalid and privileged SPR warnings currently print the wrong
address. While fixing that, also make it clear that we are
printing both the decimal and hexadecimal SPR number.

Before:

  Trying to read invalid spr 896 380 at 0000000000000714

After:

  Trying to read invalid spr 896 (0x380) at 0000000000000710

Signed-off-by: Anton Blanchard <anton@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:22:48 +02:00
Alexander Graf 126a793009 PPC: Add MMU type for 2.06 with AMR but no TB pages
When running -cpu on a POWER7 system with PR KVM, we mask out the 1TB
MMU capability from the MMU type mask, but not the AMR bit.

This leads to us having a new MMU type that we don't check for in our
MMU management functions.

Add the new type, so that we don't have to worry about breakage there.
We're not going to use the TCG MMU management in that case anyway.

The long term fix for this will be to move all these MMU management
functions to class callbacks.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:22:48 +02:00
Alexey Kardashevskiy 4807ab4f36 pseries: Update SLOF firmware image
Minor SLOF fixes which are required for libvirtd to function properly:
* vio-vscsi: vscsi-report-luns can return 0
* vio-vscsi: added a proper lun parser
* SLOF: vio-vscsi: fixed bug with reported luns

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:22:48 +02:00
Bharat Bhushan cefd3cdbdd PPC: e500: initialize GPRs as per epapr
ePAPR defines the initial values of cpu registers.
This patch initialize the GPRs as per ePAPR specification.

This resolves the issue of guest reboot/reset (guest hang on reboot).

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
[agraf: add whitespace line]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:22:47 +02:00
David Gibson b55519a0f2 pseries: Fix debug message for out-of-bounds address in H_PUT_TCE
Due to a brain outage, this message says "out-of-boards" instead of
"out-of-bounds".

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:22:47 +02:00
David Gibson d4261662b6 pseries: Factor out check for out-of-bounds LIOBN
PAPR defines LIOBNs (Logical IO Bus Numbers) to be 32-bit, and we check for
values that aren't in the code for H_PUT_TCE.  This patch factors the check
into spapr_tce_find_by_liobn(), which already checks if a 32-bit LIOBN
actually exists.  This will become more important as future patches add
other hypercalls which need to look up a LIOBN.

At the same time we fix the typo in the message.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-05-06 17:22:47 +02:00
Marcelo Tosatti 0c1cd0ae2a kvmvapic: add ioport read accessor
Necessary since memory region accessor assumes read and write
methods are registered. Otherwise reading I/O port 0x7e segfaults.

https://bugzilla.redhat.com/show_bug.cgi?id=954306

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-05-06 14:52:26 +03:00
Peter Maydell 8e515b125d configure: Check that "libtool" is not the MacOSX one
The "libtool" binary on MacOSX is not GNU libtool, and doesn't support
anything like the same set of command line options. Test whether we
have accidentally picked this up (by looking for whether it handles
the GNU --version switch), and discard it if so. The fallback machinery
for the "we don't have a libtool" case will work fine. This fixes a
failure in "make install" on MacOSX.

Reported-by: Peter Cheung <mcheung63@hotmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1367701071-6630-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-06 06:52:03 -05:00
Anthony Liguori e4b006b7a5 Merge remote-tracking branch 'afaerber-or/prep-up' into staging
# By Andreas Färber (1) and others
# Via Andreas Färber
* afaerber-or/prep-up:
  prep: Make System I/O port 0092 read/write
  prep: Add ELF support for -bios
  prep: Fix NIP reset value
2013-05-06 06:49:51 -05:00
Anthony Liguori 1e65fe5367 Merge remote-tracking branch 'pmaydell/arm-devs.next' into staging
# By Jean-Christophe DUBOIS
# Via Peter Maydell
* pmaydell/arm-devs.next:
  i.MX: implement a more correct version of EPIT timer.

Message-id: 1367603215-5120-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-06 06:47:28 -05:00
Julio Guerra b6f54b31e7 prep: Make System I/O port 0092 read/write
Port 0x0092 is documented as read/write, so for now return the
endianness state instead of hardcoded 0x00.

Signed-off-by: Julio Guerra <guerr@julio.in>
[AF: Extracted from larger port 0092 patch]
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2013-05-06 02:27:06 +02:00
Andreas Färber 97c42c3c93 prep: Add ELF support for -bios
This prepares for switching from OpenHack'Ware to OpenBIOS.

While touching the error handling code, switch from aborting hw_error()
to fprintf()+exit() and suppress failing without -bios for qtest.

Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2013-05-05 20:44:26 +02:00
Fabien Chouteau 88432756ea prep: Fix NIP reset value
The value was changed by commit 09d9828ace
"PPC: fix hreset_vector for 60x, ...".

Change it back for prep machine to unbreak OpenHack'Ware.

Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2013-05-05 15:58:06 +02:00
Blue Swirl 467b34689d Update OpenBIOS images
Update OpenBIOS images to OpenBIOS 1.1 release (SVN r1136) built from
submodule.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-05-05 09:53:22 +00:00
Blue Swirl f7a87c42a0 Merge branch 'target-arm.next' of git://git.linaro.org/people/pmaydell/qemu-arm
* 'target-arm.next' of git://git.linaro.org/people/pmaydell/qemu-arm:
  target-arm: Fix incorrect check of kvm_vcpu_ioctl return value
2013-05-05 09:05:34 +00:00
Peter Maydell 536f25e4c7 target-arm: Fix incorrect check of kvm_vcpu_ioctl return value
kvm_vcpu_ioctl() returns -ETHING on error, not ETHING -- correct
an incorrect check in kvm_arch_init_vcpu(). This would not have
had any significant ill-effects -- we would just have propagated
the less useful ENOENT up to the caller rather than the more
accurate EINVAL in the unlikely case that the kernel didn't
have VFP-D32 support.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-05-03 18:47:22 +01:00
Jean-Christophe DUBOIS 462566fc5e i.MX: implement a more correct version of EPIT timer.
This patch is providing a complete version of the EPIT timer.

Note, however that the GPT timer in the same file is still not
complete.

Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net>
Message-id: 1365624982-15647-1-git-send-email-jcd@tribudubois.net
Reviewed-by: Peter Chubb <peter.chubb@nicta.com.au>
[PMM: wrapped an overly long line]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-05-03 18:21:02 +01:00
Igor Mammedov 120dc38f61 qdev: skip bus check for bus-less devices in qdev_unplug()
Since commit 2f7bd829db "qdev: Fix device_add bus assumptions"
it's possible to device_add bus-less device, but if such device is
unplugged it will dereference NULL parent_bus in qdev_unplug().

Fix it by taking in account that parent_bus might be NULL and
skipping bus check.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 1367587536-14964-1-git-send-email-imammedo@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 12:05:33 -05:00
KONRAD Frederic 6f32a6b47e virtio-scsi: fix the command line compatibility.
The bus name is wrong since the refactoring.

This keeps the behaviour of the command line.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1367330931-12994-6-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 12:05:15 -05:00
KONRAD Frederic 80270a1968 virtio-serial: fix command line compatibility.
The bus name is wrong since the refactoring.

This keeps the behaviour of the command line.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1367330931-12994-5-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 12:05:15 -05:00
KONRAD Frederic 11fc853c4c scsi: add bus_name parameter to scsi_bus_new.
This adds the possibility to create a scsi-bus with a specified name.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1367330931-12994-4-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 12:05:15 -05:00
KONRAD Frederic 1034e9cf4d virtio: add virtio_device_set_child_bus_name.
Add virtio_device_set_child_bus_name function.

It will be used with virtio-serial-x and virtio-scsi-x to set the
child bus name before calling virtio-x-device's init.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1367330931-12994-3-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 12:05:15 -05:00
KONRAD Frederic f4dd69aa4c virtio-x-bus: force bus name to virtio-bus.
When the proxy id is set, this bus takes the name "id.0" which is expected
to be the virtio-device's first bus.

So force this name to "virtio-bus" as it is an internal bus.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1367330931-12994-2-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 12:05:14 -05:00
Tim Hardeck 0057a0d590 TLS support for VNC Websockets
Added TLS support to the VNC QEMU Websockets implementation.
VNC-TLS needs to be enabled for this feature to be used.

The required certificates are specified as in case of VNC-TLS
with the VNC parameter "x509=<path>".

If the server certificate isn't signed by a rooth authority it needs to
be manually imported in the browser because at least in case of Firefox
and Chrome there is no user dialog, the connection just gets canceled.

As a side note VEncrypt over Websocket doesn't work atm because TLS can't
be stacked in the current implementation. (It also didn't work before)
Nevertheless to my knowledge there is no HTML 5 VNC client which supports
it and the Websocket connection can be encrypted with regular TLS now so
it should be fine for most use cases.

Signed-off-by: Tim Hardeck <thardeck@suse.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1366727581-5772-1-git-send-email-thardeck@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 12:04:57 -05:00
Jan Kiszka 8f3b664f6c audio: Enable all cards
...or they will bitrot to death.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Message-id: 5181234A.6060504@web.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 12:04:49 -05:00
Paolo Bonzini fba90ac1d6 win32: fix compilation again
While commit c02817e5bf fixed compilation
without an installed libtool, moving the dependencies to rules.mak does
not work because the version-*-y variables are not defined yet.  Building
in a clean tree thus fails.

Revert the commit and remove the dummy /bin/false assignment to LIBTOOL.
This makes the build work, at the price of slightly worse errors when
there are Makefile bugs.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1367425815-15083-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 12:04:40 -05:00
Andreas Färber cc9936a32f libqos: Relocate I2C files
Commit c4efe1cada (qtest: add libqos
including PCI support) created a libqos/ subdirectory but left the
existing I2C libqos files libi2c*.[hc] in tests/. Clean this up.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1367502986-15104-1-git-send-email-afaerber@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 12:03:14 -05:00
Anthony Liguori 743bddb4b3 Merge remote-tracking branch 'stefanha/tracing' into staging
# By Eiichi Tsukata (2) and Kazuya Saito (2)
# Via Stefan Hajnoczi
* stefanha/tracing:
  trace: document ftrace backend
  trace: Add ftrace tracing backend
  kvm-all: add kvm_run_exit tracepoint
  kvm-all: add kvm_ioctl, kvm_vm_ioctl, kvm_vcpu_ioctl tracepoints

Message-id: 1367582485-15579-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 11:20:16 -05:00
Anthony Liguori a612925b41 Merge remote-tracking branch 'stefanha/net' into staging
# By Amos Kong (1) and Jason Wang (1)
# Via Stefan Hajnoczi
* stefanha/net:
  tap: properly initialize vhostfds
  net: make network client name unique

Message-id: 1367582254-15060-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-03 11:20:07 -05:00
Anthony Liguori 25565e8595 Merge remote-tracking branch 'stefanha/block' into staging
# By Fam Zheng (8) and others
# Via Stefan Hajnoczi
* stefanha/block:
  qemu-iotests: Filter out 'adapter_type'
  nbd: support large NBD requests
  nbd: use g_slice_new() instead of a freelist
  qemu-iotests: Filter out vmdk creation options
  vmdk: add bdrv_co_write_zeroes
  vmdk: store fields of VmdkMetaData in cpu endian
  vmdk: change magic number to macro
  vmdk: Add option to create zeroed-grain image
  vmdk: add support for “zeroed‐grain” GTE
  vmdk: named return code.
  blockdev: Replace "undefined error" in qmp_block_resize
  block: add read-only support to VHDX image format.
  block: initial VHDX driver support framework - supports open and probe
  block: vhdx header for the QEMU support of VHDX images
  qemu: add castagnoli crc32c checksum algorithm
2013-05-03 11:20:02 -05:00
Eiichi Tsukata e64dd5efb2 trace: document ftrace backend
Add documentation of ftrace backend.

Signed-off-by: Eiichi Tsukata <eiichi.tsukata.xh@hitachi.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-03 13:58:09 +02:00
Eiichi Tsukata 781e9545db trace: Add ftrace tracing backend
This patch adds a ftrace tracing backend which sends trace event to
ftrace marker file. You can effectively compare qemu trace data and
kernel(especially, kvm.ko when using KVM) trace data.
The ftrace backend is restricted to Linux only.

To try out the ftrace backend:

 $ ./configure --trace-backend=ftrace
 $ make

if you use KVM, enable kvm events in ftrace:

 # sudo echo 1 > /sys/kernel/debug/tracing/events/kvm/enable

After running qemu by root user, you can get the trace:

 # cat /sys/kernel/debug/tracing/trace

Signed-off-by: Eiichi Tsukata <eiichi.tsukata.xh@hitachi.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-03 13:58:09 +02:00
Kazuya Saito b76ac80a5c kvm-all: add kvm_run_exit tracepoint
This patch enable us to know exit reason of KVM_RUN. It will help us
know where the trouble is caused.

Signed-off-by: Kazuya Saito <saito.kazuya@jp.fujitsu.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-03 13:58:09 +02:00
Kazuya Saito 9c7757290c kvm-all: add kvm_ioctl, kvm_vm_ioctl, kvm_vcpu_ioctl tracepoints
This patch adds tracepoints at ioctl to kvm. Tracing these ioctl is
useful for clarification whether the cause of troubles is qemu or kvm.

Signed-off-by: Kazuya Saito <saito.kazuya@jp.fujitsu.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-03 13:58:08 +02:00
Jason Wang 7873df408d tap: properly initialize vhostfds
Only tap->vhostfd were checked net_init_tap_one(), but tap->vhostfds were
forgot, this will lead qemu to ignore all fds passed by management through
vhostfds, and tries to create vhost_net device itself. Fix by adding this check
also.

Reportyed-by: Michal Privoznik <mprivozn@redhat.com>
Cc: Michal Privoznik <mprivozn@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-03 13:53:46 +02:00
Amos Kong c963530a5b net: make network client name unique
assign_name() creates a name MODEL.NUM, where MODEL is the client's model,
and NUM is the number of MODELs that already exist.

Markus added NIC naming for non-VLAN clients in commit 53e51d85.
commit d33d93b2 incorrectly added a judgement of net-hub. It caused
net clients created with -netdev get same names.

eg:
 # qemu-upstream -device virtio-net-pci,netdev=h1 -netdev tap,id=h1 \
                    -device virtio-net-pci,netdev=h2 -netdev tap,id=h2 ..
 (qemu) info network
 virtio-net-pci.0: index=0,type=nic,model=virtio-net-pci,macaddr=52:54:00:12:34:56
  \ h1: index=0,type=tap,ifname=tap0,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
 virtio-net-pci.0: index=0,type=nic,model=virtio-net-pci,macaddr=52:54:00:12:34:57
  \ h2: index=0,type=tap,ifname=tap1,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown

This patch removed the check of nic-hub, and created unique names for
all net clients that have same model.

v2: update commitlog & comments

Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-03 13:53:46 +02:00
Fam Zheng 86abefd61e qemu-iotests: Filter out 'adapter_type'
Filter out vmdk creation option 'adapter_type' for vmdk. So that tests
with an explicit './check -o adapter_type=XXX' will not fail.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-03 13:06:22 +02:00
Stefan Hajnoczi 2d82148859 nbd: support large NBD requests
The Linux nbd driver recently increased the maximum supported request
size up to 32 MB:

  commit 078be02b80359a541928c899c2631f39628f56df
  Author: Michal Belczyk <belczyk@bsd.krakow.pl>
  Date:   Tue Apr 30 15:28:28 2013 -0700

      nbd: increase default and max request sizes

      Raise the default max request size for nbd to 128KB (from 127KB) to get it
      4KB aligned.  This patch also allows the max request size to be increased
      (via /sys/block/nbd<x>/queue/max_sectors_kb) to 32MB.

QEMU's 1 MB buffers are too small to handle these requests.

This patch allocates data buffers dynamically and allows up to 32 MB per
request.

Reported-by: Nick Thomas <nick@bytemark.co.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-03 13:05:49 +02:00
Stefan Hajnoczi e1adb27a83 nbd: use g_slice_new() instead of a freelist
Use GLib's efficient slice allocator instead of open-coding the request
freelist.  This patch simplifies the NBDRequest code.

Now we qemu_blockalign() the req->data buffer each time but the next
patch switches from a fixed size buffer to a dynamic size anyway.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-03 13:05:49 +02:00
Richard Henderson c9e53a4cf1 tcg-arm: Use movi32 in exit_tb
Avoid the mini constant pool for armv7, and avoid replicating
the test for pre-v7.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-05-03 11:53:30 +02:00
Richard Henderson 8ddaeb1be6 tcg-arm: Fix 64-bit tlb load for pre-v6
Found by inspection, since the effect of the bug was simply to
send all memory ops through the slow path.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-05-03 11:53:29 +02:00
Petar Jovanovic 29851ee7c8 target-mips: fix calculation of overflow for SHLL.PH and SHLL.QB
This change corrects and simplifies how discard is calculated for shift
left logical vector instructions. It is used to detect overflow and set bit
22 in the DSPControl register.

The existing tests (shll_ph.c, shll_qb.c) are extended with the corner cases
that expose incorrectness in the previous implementation.

Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-05-03 11:50:49 +02:00