Anthony Liguori [Mon, 22 Jul 2013 15:13:49 +0000 (10:13 -0500)]
Merge remote-tracking branch 'mjt/trivial-patches' into staging
# By Michael Tokarev (2) and others
# Via Michael Tokarev
* mjt/trivial-patches:
doc: monitor multiplexing rewording
block/m25p80: Update Micron entries
Fix command example in qemu.sasl
slirp: remove mbuf(m_hdr,m_dat) indirection
linux-user: declare sys_futex to have 6 arguments
Message-id: 1374225073-12959-1-git-send-email-mjt@msgid.tls.msk.ru Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 22 Jul 2013 15:13:34 +0000 (10:13 -0500)]
Merge remote-tracking branch 'stefanha/block' into staging
# By Peter Lieven (5) and others
# Via Stefan Hajnoczi
* stefanha/block:
block/raw: add .bdrv_get_info
block: fix bdrv_read_unthrottled()
cpus: Let vm_stop[_force_state]() always flush block devices
block-migration: efficiently encode zero blocks
block/raw: add bdrv_co_write_zeroes
block: add bdrv_write_zeroes()
block: fix vvfat error path for enable_write_target
QEMUBH: make AioContext's bh re-entrant
dataplane: sync virtio.c and vring.c virtqueue state
gluster: Add discard support for GlusterFS block driver.
gluster: Use pkg-config to configure GlusterFS block driver
Message-id: 1374223132-29107-1-git-send-email-stefanha@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 22 Jul 2013 15:13:15 +0000 (10:13 -0500)]
Merge remote-tracking branch 'stefanha/tracing' into staging
# By Markus Armbruster
# Via Stefan Hajnoczi
* stefanha/tracing:
trace-events: Fix up source file comments
trace-events: Drop unused events
milkymist-minimac2: Fix minimac2_read/_write tracepoints
slavio_misc: Fix slavio_led_mem_readw/_writew tracepoints
cleanup-trace-events.pl: New
Message-id: 1374119369-26496-1-git-send-email-stefanha@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Ed Maste [Tue, 4 Jun 2013 15:59:14 +0000 (11:59 -0400)]
block/m25p80: Update Micron entries
- Split 32Mb and 256Mb parts into a11 and a13 variants.
- Add the 4K sector flag to the 128Mb parts. (These entries were taken from
the Linux kernel list, which is missing the flag.)
- Fill out the table of sizes with entries for 64Mb parts.
Prodded by Peter Crosthwaite.
Signed-off-by: Ed Maste <emaste@freebsd.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Petar Jovanovic [Mon, 15 Jul 2013 13:17:40 +0000 (15:17 +0200)]
linux-user: declare sys_futex to have 6 arguments
sys_futex has 6 arguments, and all of these need to be copied. Fix incorrect
declaration in the mips_syscall_args array.
This change fixes the cases where the 5th and 6th arguments have non-zero
value and have importance. An example is a Linux implementation of
pthread_cond_wait() function.
Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Kevin Wolf [Thu, 18 Jul 2013 12:52:19 +0000 (14:52 +0200)]
cpus: Let vm_stop[_force_state]() always flush block devices
Even if the VM is already stopped, we cannot assume that all data has
already been successfully flushed to disk. The flush during the previous
vm_stop() could have failed.
Run bdrv_flush_all() unconditionally so that we get an error each time
if the block device isn't really flushed.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Peter Lieven [Thu, 18 Jul 2013 07:48:50 +0000 (09:48 +0200)]
block-migration: efficiently encode zero blocks
this patch adds a efficient encoding for zero blocks by
adding a new flag indicating a block is completely zero.
additionally bdrv_write_zeros() is used at the destination
to efficiently write these zeroes. depending on the implementation
this avoids that the destination target gets fully provisioned.
Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
block: fix vvfat error path for enable_write_target
s->qcow and s->qcow_filename are allocated but not freed on error. Fix the
possible leaks, remove unnecessary check for bdrv_new(), propagate ret code of
bdrv_create() and also the one of enable_write_target().
Liu Ping Fan [Tue, 16 Jul 2013 04:28:58 +0000 (12:28 +0800)]
QEMUBH: make AioContext's bh re-entrant
BH will be used outside big lock, so introduce lock to protect
between the writers, ie, bh's adders and deleter. The lock only
affects the writers and bh's callback does not take this extra lock.
Note that for the same AioContext, aio_bh_poll() can not run in
parallel yet.
Signed-off-by: Liu Ping Fan <pingfank@linux.vnet.ibm.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Stefan Hajnoczi [Mon, 1 Jul 2013 11:29:17 +0000 (13:29 +0200)]
dataplane: sync virtio.c and vring.c virtqueue state
Load the virtio.c state into vring.c when we start dataplane mode and
vice versa when stopping dataplane mode. This patch makes it possible
to start and stop dataplane any time while the guest is running.
This will eventually allow us to go back to QEMU main loop for
bdrv_drain_all() and live migration. In the meantime, this patch makes
the dataplane lifecycle more robust but should make no visible
difference. It may be useful in the virtio-net dataplane effort.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
gluster: Add discard support for GlusterFS block driver.
Implement bdrv_aio_discard for gluster.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-13-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Provide a constructor that takes the base address in addition to the
PC-specific one.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-12-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-11-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Cc: Andreas Färber <afaerber@suse.de> Cc: Alexander Graf <agraf@suse.de> Cc: qemu-ppc@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-10-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
boot-order-test: Code motion for better readability
Cc: Andreas Färber <afaerber@suse.de> Cc: Alexander Graf <agraf@suse.de> Cc: qemu-ppc@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-9-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
boot-order-test: Better separate target-specific and generic parts
The initial version did just PC. I didn't bother to separate out
generic parts, because I don't like to abstract from a single case.
Now we have two cases, PC and PowerMac, and I'm about to add more.
Time to do it right.
To ease review, this commit changes the code in-place, and the next
commit reorders it for better readability.
Cc: Andreas Färber <afaerber@suse.de> Cc: Alexander Graf <agraf@suse.de> Cc: qemu-ppc@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-8-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Cc: Andreas Färber <afaerber@suse.de> Cc: Alexander Graf <agraf@suse.de> Cc: qemu-ppc@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-7-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Andreas Färber [Wed, 26 Jun 2013 13:52:16 +0000 (15:52 +0200)]
boot-order-test: Add tests for PowerMacs
They set the boot device via fw_cfg, which is then translated to a boot
path of "hd" or "cd" in OpenBIOS.
Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-6-git-send-email-armbru@redhat.com Cc: Alexander Graf <agraf@suse.de> Cc: qemu-ppc@nongnu.org
Converted to libqos/fw_cfg on Anthony's request. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-5-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Wed, 26 Jun 2013 13:52:14 +0000 (15:52 +0200)]
libqos: include dependencies
Otherwise rebuilds can fail when libqos is modified.
Reported-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-4-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-3-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
libqtest's qtest_init() connecting to the qtest socket triggers reset.
This was coded in the hope we could use the same QEMU process for
multiple tests that way. Never used. Injects an extra reset even
when it's not used, and that can mess up tests such as the one of
-boot once I'm about to add. Drop it.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-2-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
libqtest: New qtest_end() to go with qtest_start()
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1371711329-9144-3-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
libqtest: Plug fd and memory leaks in qtest_quit()
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de>
Message-id: 1371711329-9144-2-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
When monitor_flush() is invoked repeatedly outside the monitor_unblocked()
callback, for example from tlb_info() -> ... -> print_pte(), several
watches may be added for the same event.
This is no problem per se because the extra monitor_unblocked() callbacks
are harmless if mon->outbuf is empty, the watches will be removed
gradually. However a big number of watches can grow "gpollfds" without
limit in glib_pollfds_fill(), triggering a -1/EINVAL condition in
g_poll().
Keep at most one such watch, by following the pattern observable in eg.
commits c874ea97 and c3d6b96e. The change has no effect when
monitor_unblocked() calls monitor_flush() (when the watch can either be
removed or renewed 1-for-1), but non-callback contexts won't create an
additional watch when the monitor already has one.
Related RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=970047
Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1373998781-29561-3-git-send-email-lersek@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The g_io_channel_write_chars() documentation states,
bytes_written: The number of bytes written. This can be nonzero even if
the return value is not G_IO_STATUS_NORMAL. [...]
io_channel_send() could lose such bytes before.
Furthermore, the (status == G_IO_STATUS_EOF) condition used to evaluate to
constant false whenever it was reached. When that condition actually held,
it always led to -1 / EINVAL. This patch (almost) distinguishes
G_IO_STATUS_EOF only when no bytes have been written, and then treats it
as an error.
Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1373998781-29561-2-git-send-email-lersek@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Peter Maydell [Thu, 18 Jul 2013 15:42:01 +0000 (16:42 +0100)]
configure: Provide more helpful message if libvte not present
If the system has GTK but not libvte, it's more helpful to
tell the user that libvte is missing than to simply say that
GTK is not present.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1374162121-31582-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Basing the alarm off the rtc_clock was silly. It leads to horrible
spinning in the guest after being suspended and resumed, as it tries
to catch up with lost ticks.
This requires adding an accessor for reading the vm_clock too.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Anthony Liguori [Thu, 18 Jul 2013 13:14:22 +0000 (08:14 -0500)]
Merge remote-tracking branch 'awilliam/tags/vfio-for-qemu-1.6' into staging
vfio: enhanced VGA quirks + AER error containment
# gpg: Signature made Wed 17 Jul 2013 05:39:38 PM CDT using RSA key ID 3BB08B22
# gpg: Can't check signature: public key not found
# By Alex Williamson (1) and Vijay Mohan Pandarathil (1)
# Via Alex Williamson
* awilliam/tags/vfio-for-qemu-1.6:
vfio: QEMU-AER: Qemu changes to support AER for VFIO-PCI devices
vfio-pci: VGA quirk update
Message-id: 20130717224939.4763.87264.stgit@bling.home Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Thu, 18 Jul 2013 13:14:10 +0000 (08:14 -0500)]
Merge remote-tracking branch 'luiz/queue/qmp' into staging
# By Amos Kong (1) and Luiz Capitulino (1)
# Via Luiz Capitulino
* luiz/queue/qmp:
qmp: update send-key document
qapi: qapi-commands: fix possible leaks on visitor dealloc
Message-id: 1374093679-29213-1-git-send-email-lcapitulino@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Thu, 18 Jul 2013 13:13:50 +0000 (08:13 -0500)]
Merge remote-tracking branch 'bonzini/scsi-next' into staging
# By Peter Lieven (4) and Ronnie Sahlberg (1)
# Via Paolo Bonzini
* bonzini/scsi-next:
iscsi: factor out sector conversions
iscsi: assert that sectors are aligned to LUN blocksize
iscsi: remove support for misaligned nb_sectors in aio_readv
iscsi: fix -ENOSPC in iscsi_create()
Fix iSCSI crash on SG_IO with an iovector
Message-id: 1374073524-8469-1-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Thu, 18 Jul 2013 13:12:47 +0000 (08:12 -0500)]
Merge remote-tracking branch 'mst/tags/for_anthony' into staging
pci,net,pc enhancements
This includes some fixes and enhancements that accumulated in my tree:
pci fixes by dkoch, virtio-net enhancements by akong and mst,
and a fix for xen pc by mst.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Wed 17 Jul 2013 04:44:45 AM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found
# By Don Koch (2) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
pc: don't access fw cfg if NULL
virtio-net: add feature bit for any header s/g
net: add support of mac-programming over macvtap in QEMU side
pci: fix BRDIGE typo
pci-bridge: update mappings for migration/restore
Message-id: 1374054430-21966-1-git-send-email-mst@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
They're all wrong since (at least) Paolo's big source tree
reorganization. Need to shuffle some event declarations around to
keep them under the correct source file comment.
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Dropped event Unused since
mirror_cow 884fea4
paio_complete 47e6b25
paio_cancel 47e6b25
usb_ehci_data 0ce668b
megasas_qf_dequeue never used
megasas_handle_frame never used
megasas_io_continue never used
megasas_iovec_map_failed never used
megasas_dcmd_map_failed never used
milkymist_softusb_mouse_event 4c15ba9
xen_map_block 6506e4f
xen_unmap_block 6506e4f
qemu_spice_start 67be672
qemu_spice_stop 67be672
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Peter Lieven [Thu, 11 Jul 2013 12:16:24 +0000 (14:16 +0200)]
iscsi: fix -ENOSPC in iscsi_create()
the -ENOPSC case did not work due to the missing goto.
Reported-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Peter Lieven <pl@kamp.de> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Ronnie Sahlberg [Sun, 23 Jun 2013 15:07:08 +0000 (08:07 -0700)]
Fix iSCSI crash on SG_IO with an iovector
Don't assume that SG_IO is always invoked with a simple buffer,
check the iovec_count and if it is >= 1 then we need to pass an array
of iovectors to libiscsi instead of just a plain buffer.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
qapi: qapi-commands: fix possible leaks on visitor dealloc
In qmp-marshal.c the dealloc visitor calls use the same errp
pointer of the input visitor calls. This means that if any of
the input visitor calls fails, then the dealloc visitor will
return early, before freeing the object's memory.
Here's an example, consider this code:
int qmp_marshal_input_block_passwd(Monitor *mon, const QDict *qdict, QObject **ret)
{
[...]
char * device = NULL;
char * password = NULL;
mi = qmp_input_visitor_new_strict(QOBJECT(args));
v = qmp_input_get_visitor(mi);
visit_type_str(v, &device, "device", errp);
visit_type_str(v, &password, "password", errp);
qmp_input_visitor_cleanup(mi);
if (error_is_set(errp)) {
goto out;
}
qmp_block_passwd(device, password, errp);
Consider errp != NULL when the out label is reached, we're going
to leak device and password.
This patch fixes this by always passing errp=NULL for dealloc
visitors, meaning that we always try to free them regardless of
any previous failure. The above example would then be:
vfio: QEMU-AER: Qemu changes to support AER for VFIO-PCI devices
Add support for error containment when a VFIO device assigned to a KVM
guest encounters an error. This is for PCIe devices/drivers that support AER
functionality. When the host OS is notified of an error in a device either
through the firmware first approach or through an interrupt handled by the AER
root port driver, the error handler registered by the vfio-pci driver gets
invoked. The qemu process is signaled through an eventfd registered per
VFIO device by the qemu process. In the eventfd handler, qemu decides on
what action to take. In this implementation, guest is brought down to
contain the error.
The kernel patches for the above functionality has been already accepted.
This is a refresh of the QEMU patch which was reviewed earlier.
http://marc.info/?l=linux-kernel&m=136281557608087&w=2
This patch has the same contents and has been built after refreshing
to latest upstream and after the linux headers have been updated in qemu.
- Create eventfd per vfio device assigned to a guest and register an
event handler
- This fd is passed to the vfio_pci driver through the SET_IRQ ioctl
- When the device encounters an error, the eventfd is signalled
and the qemu eventfd handler gets invoked.
- In the handler decide what action to take. Current action taken
is to stop the guest.
Signed-off-by: Vijay Mohan Pandarathil <vijaymohan.pandarathil@hp.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Alex Williamson [Mon, 15 Jul 2013 21:48:11 +0000 (15:48 -0600)]
vfio-pci: VGA quirk update
Turns out all the suspicions for AMD devices were correct, everywhere
we read a BAR address that the address matches the config space offset,
there's full access to PCI config space. Attempt to generalize some
helpers to allow quirks to easily be added for mirrors and windows.
Also fill in complete config space for AMD.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Anthony Liguori [Mon, 15 Jul 2013 19:49:15 +0000 (14:49 -0500)]
Merge remote-tracking branch 'quintela/migration.next' into staging
# By Chegu Vinod
# Via Juan Quintela
* quintela/migration.next:
Force auto-convegence of live migration
Add 'auto-converge' migration capability
Introduce async_run_on_cpu()
Message-id: 1373664508-5404-1-git-send-email-quintela@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 15 Jul 2013 19:02:12 +0000 (14:02 -0500)]
Merge remote-tracking branch 'pmaydell/tags/pull-arm-devs-20130715' into staging
arm-devs queue
# gpg: Signature made Mon 15 Jul 2013 10:53:44 AM CDT using RSA key ID 14360CDE
# gpg: Can't check signature: public key not found
# By Peter Maydell (4) and others
# Via Peter Maydell
* pmaydell/tags/pull-arm-devs-20130715:
ARM/highbank: add support for Calxeda ECX-2000 / Midway
ARM/highbank: prepare for adding similar machines
hw/arm/vexpress: Add alias for flash at address 0 on A15 board
hw/dma/omap_dma: Fix bugs with DMA requests above 32
sd/pl181.c: Avoid undefined shift behaviour in RWORD macro
hw/cpu/a15mpcore: Correct default value for num-irq
char/cadence_uart: Fix reset for unattached instances
Message-id: 1373904095-27592-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 15 Jul 2013 19:00:57 +0000 (14:00 -0500)]
Merge remote-tracking branch 'rth/axp-next' into staging
# By Richard Henderson
# Via Richard Henderson
* rth/axp-next:
hw/alpha: Use SRM epoch
hw/alpha: Drop latch_tmp hack
exec: Support 64-bit operations in address_space_rw
hw/alpha: Don't machine check on missing pci i/o
hw/alpha: Don't use get_system_io
Message-id: 1373840171-25556-1-git-send-email-rth@twiddle.net Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 15 Jul 2013 19:00:32 +0000 (14:00 -0500)]
Merge remote-tracking branch 'kwolf/for-anthony' into staging
# By Kevin Wolf (6) and Stefan Hajnoczi (2)
# Via Kevin Wolf
* kwolf/for-anthony:
ahci: Fix FLUSH command
migration: Fail migration on bdrv_flush_all() error
cpus: Add return value for vm_stop()
block: Add return value for bdrv_flush_all()
qemu-iotests: Update 051 reference output
block: Don't parse protocol from file.filename
block: add drive_backup HMP command
blockdev: add sync mode to drive-backup QMP command
Message-id: 1373887000-4488-1-git-send-email-kwolf@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Old qemu versions required that 1st s/g entry is the header.
Since QEMU 1.5, patchset titled "virtio-net: iovec handling cleanup"
removed this limitation but a feature bit is needed so guests know it's
safe to lay out header differently.
This patch applies on top and adds such a feature bit to QEMU.
It is set by default for virtio-net.
virtio net header inline with the data is beneficial
for latency and small packet bandwidth - guest driver
code utilizing this feature has been acked but missed 3.11
by a narrow margin, it's pending for 3.12.
This feature bit is cleared by default when compatibility with old
machine types is requested.
Other performance-sensitive devices (blk and scsi)
don't yet support arbitrary s/g layouts, so
we only set this bit for virtio-net for now.
There are plans to allow arbitrary layouts there, but
no code has been posted yet.
Cc: Rusty Russell <rusty@rustcorp.com.au> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Amos Kong [Fri, 14 Jun 2013 07:45:52 +0000 (15:45 +0800)]
net: add support of mac-programming over macvtap in QEMU side
Currently macvtap based macvlan device is working in promiscuous
mode, we want to implement mac-programming over macvtap through
Libvirt for better performance.
Design:
QEMU notifies Libvirt when rx-filter config is changed in guest,
then Libvirt query the rx-filter information by a monitor command,
and sync the change to macvtap device. Related rx-filter config
of the nic contains main mac, rx-mode items and vlan table.
This patch adds a QMP event to notify management of rx-filter change,
and adds a monitor command for management to query rx-filter
information.
Test:
If we repeatedly add/remove vlan, and change macaddr of vlan
interfaces in guest by a loop script.
Result:
The events will flood the QMP client(management), management takes
too much resource to process the events.
Event_throttle API (set rate to 1 ms) can avoid the events to flood
QMP client, but it could cause an unexpected delay (~1ms), guests
guests normally expect rx-filter updates immediately.
So we use a flag for each nic to avoid events flooding, the event
is emitted once until the query command is executed. The flag
implementation could not introduce unexpected delay.
There maybe exist an uncontrollable delay if we let Libvirt do the
real change, guests normally expect rx-filter updates immediately.
But it's another separate issue, we can investigate it when the
work in Libvirt side is done.
Michael S. Tsirkin: tweaked to enable events on start
Michael S. Tsirkin: fixed not to crash when no id
Michael S. Tsirkin: fold in patch:
"additional fixes for mac-programming feature"
Amos Kong: always notify QMP client if mactable is changed
Amos Kong: return NULL list if no net client supports rx-filter query
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Amos Kong <akong@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Peter Maydell [Mon, 1 Jul 2013 11:40:19 +0000 (12:40 +0100)]
target-arm: Avoid g_hash_table_get_keys()
g_hash_table_get_keys() was only introduced in glib 2.14, and we're
still targeting a minimum version of 2.12. Rewrite the offending
code (introduced in commit 721fae1) to use g_hash_table_foreach()
to build the list of keys.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com> Tested-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1372678819-8633-1-git-send-email-peter.maydell@linaro.org
Peter Maydell [Thu, 27 Jun 2013 15:38:47 +0000 (16:38 +0100)]
target-arm: avoid undefined behaviour when writing TTBCR
LPAE CPUs have more potentially valid bits in the TTBCR, and so the
simple masking out of invalid bits is no longer sufficient to obtain
the base address width field of the register, which is what we use to
precalculate c2_mask and c2_base_mask. Explicitly extract the
relevant register field rather than simply shifting by the register
value.
This bug would have had no ill effects in practice, since if the
EAE bit (TTBCR bit 31) is set then we don't use the precalculated
masks, and if EAE is zero then bits 30..3 are all UNK/SBZP, so
well-behaved guests won't set them. However the shift is undefined
behaviour, so we should avoid it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1372347527-4428-1-git-send-email-peter.maydell@linaro.org
target-arm/helper.c: Allow const opaques in arm CP
Allow for defining const opaque data in ARM CP register definitions by
setting .opaque = foo. If non null opaque is passed into
define_one_arm_cp_reg_with_opaque then that opaque will take
precedence, otherwise if null opaque is passed, the original opaque
data will be used.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: cf0a3ac3438d97464240db9f5f4ef1585cbc1d77.1373429432.git.peter.crosthwaite@xilinx.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Unimplemented registers in the cp15, CRn=0, opc1=0, CRm=0 space default
to aliasing the MIDR register. Set all registers in the space to access
MIDR by default.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 6127846712b7ad2727354a4f5e1d809451f1e859.1373429432.git.peter.crosthwaite@xilinx.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The if block detecting OMAP/StrongARM modifies the id_cp_reginfo
.access fields in place. So there is no need to replicate the call
to define_arm_cp_reg(). Dropped, and let the OMAP case fall through
to the normal behaviour after the in-place modification.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 72aae9b8ebbc9a76d2b06faf8666ef8a4b34b92a.1373429432.git.peter.crosthwaite@xilinx.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Mans Rullgard [Mon, 15 Jul 2013 13:35:25 +0000 (14:35 +0100)]
target-arm: explicitly decode SEVL instruction
The ARMv8 SEVL instruction is in the architectural hint space already
emulated as nop. This makes the decoding of SEVL explicit for clarity.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Message-id: 1370606786-5650-3-git-send-email-mans@mansr.com
[PMM: added 'SEVL' to the TODO comment] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Mans Rullgard [Mon, 15 Jul 2013 13:35:25 +0000 (14:35 +0100)]
target-arm: implement LDA/STL instructions
This adds support for the ARMv8 load acquire/store release instructions.
Since qemu does nothing special for memory barriers, these can be
emulated like their non-acquire/release counterparts.
Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Andre Przywara [Fri, 5 Jul 2013 12:21:37 +0000 (14:21 +0200)]
ARM/highbank: add support for Calxeda ECX-2000 / Midway
The Calxeda ECX-2000 chip (aka. Midway) is model-wise quite similar
to the Highbank. The most prominent difference is the Cortex-A15 CPU
core in it, together with the associated core peripherals.
Add a new ARM machine type called "midway".
Move the L2 cache controller device into the Highbank specific part,
since Midway does not have (and need) it.
Signed-off-by: Andre Przywara <andre.przywara@calxeda.com>
Message-id: 1373026897-12085-3-git-send-email-andre.przywara@calxeda.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Andre Przywara [Fri, 5 Jul 2013 12:21:36 +0000 (14:21 +0200)]
ARM/highbank: prepare for adding similar machines
To allow the modelling of machines similar to Calxeda Highbank,
introduce a parameter to the init function and call it from a
wrapper. This allows to tweak the definition for individual machines
later on.
Signed-off-by: Andre Przywara <andre.przywara@calxeda.com>
Message-id: 1373026897-12085-2-git-send-email-andre.przywara@calxeda.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 9 Jul 2013 12:49:40 +0000 (13:49 +0100)]
hw/arm/vexpress: Add alias for flash at address 0 on A15 board
The A15 Versatile Express board can remap a variety of things at address
0. We don't currently emulate the Serial Configuration Controller which
is how the guest can control this remapping, but we can provide the
initial default mapping of the first flash device into this space.
In particular this allows QEMU to boot flash images such as UEFI which
expect to include an exception vector table.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Grant Likely <grant.likely@linaro.org>
Message-id: 1373374180-19884-1-git-send-email-peter.maydell@linaro.org
Peter Maydell [Fri, 28 Jun 2013 12:51:59 +0000 (13:51 +0100)]
hw/dma/omap_dma: Fix bugs with DMA requests above 32
The drqbmp field of struct soc_dma_s is a uint64_t; however several
places in the code attempt to set bits in it using "(1 << drq)",
which will fail if drq is large enough that the 1 bit gets shifted
off the top of a 32 bit integer. Change these to "(1ULL << drq)" so
that the promotion to 64 bit happens before the shift rather than
afterwards.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1372423919-5669-1-git-send-email-peter.maydell@linaro.org
Peter Maydell [Fri, 5 Jul 2013 13:54:41 +0000 (14:54 +0100)]
hw/cpu/a15mpcore: Correct default value for num-irq
The a15mpcore device claims that its default value for num-irq
is the number of interrupts used by the A15MP in the vexpress-a15
board. However that chip has 128 external interrupts, not 64.
Since there is only one A15 based model in QEMU currently, we
can fix this by simply changing the default value.
This error was causing recent (3.10) Linux kernels to print
warnings/backtraces when the number of interrupts reported
by the GIC was smaller than an interrupt number they wanted
to use.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1373032481-15280-1-git-send-email-peter.maydell@linaro.org
Mans Rullgard [Mon, 15 Jul 2013 13:35:25 +0000 (14:35 +0100)]
target-arm: add feature flag for ARMv8
Signed-off-by: Mans Rullgard <mans@mansr.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Kevin Wolf [Mon, 15 Jul 2013 09:25:55 +0000 (11:25 +0200)]
ahci: Fix FLUSH command
AHCI couldn't cope with asynchronous commands that aren't doing DMA, it
simply wouldn't complete them. Due to the bug fixed in commit f68ec837,
FLUSH commands would seem to have completed immediately even if they
were still running on the host. After the commit, they would simply hang
and never unset the BSY bit, rendering AHCI unusable on any OS sending
flushes.
This patch adds another callback for the completion of asynchronous
commands. This is what AHCI really wants to use for its command
completion logic rather than an DMA completion callback.
Cc: qemu-stable@nongnu.org Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Fri, 5 Jul 2013 11:54:55 +0000 (13:54 +0200)]
migration: Fail migration on bdrv_flush_all() error
If bdrv_flush_all() returns an error, there is an inconsistency in the
view of an image file between the source and the destination host.
Completing the migration would lead to corruption. Better abort
migration in this case.
To reproduce this case, try the following (ensures that there is
something to flush, and then fails that flush):
Kevin Wolf [Fri, 5 Jul 2013 11:48:01 +0000 (13:48 +0200)]
block: Add return value for bdrv_flush_all()
bdrv_flush() can fail, and bdrv_flush_all() should return an error as
well if this happens for a block device. It returns the first error
return now, but still at least tries to flush the remaining devices even
in error cases.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Wed, 10 Jul 2013 13:47:39 +0000 (15:47 +0200)]
block: Don't parse protocol from file.filename
One of the major reasons for doing something new for -blockdev and
blockdev-add was that the old block layer code parses filenames instead
of just taking them literally. So we should really leave it untouched
when it's passing using the new interfaces (like -drive
file.filename=...).
This allows opening relative file names that contain a colon.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Stefan Hajnoczi [Wed, 26 Jun 2013 12:11:58 +0000 (14:11 +0200)]
block: add drive_backup HMP command
Make "drive_backup" available on the HMP monitor:
drive_backup [-n] [-f] device target [format]
The -n flag requests QEMU to reuse the image found in new-image-file,
instead of recreating it from scratch.
The -f flag requests QEMU to copy the whole disk, so that the result
does not need a backing file. Note that this flag *must* currently be
passed since the other sync modes ('none' and 'top') have not been
implemented yet. Requiring it ensures that "drive_backup" behaves like
"drive_mirror".
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Wed, 26 Jun 2013 12:11:57 +0000 (14:11 +0200)]
blockdev: add sync mode to drive-backup QMP command
The drive-backup command is similar to the drive-mirror command, except
no guest data written after the command executes gets copied. Add a
sync mode argument which determines whether the entire disk is copied,
just allocated clusters, or only clusters being written to by the guest.
Currently only sync mode 'full' is supported - it copies the entire disk.
For read-only point-in-time snapshots we may only need sync mode 'none'
since the target can be a qcow2 file using the guest's disk as its
backing file (no need to copy the entire disk). Finally, sync mode
'top' is useful if we wish to preserve the backing chain.
Note that this patch just adds the sync mode argument to drive-backup.
It does not implement sync modes 'top' or 'none'. This patch is
necessary so we can add a drive-backup HMP command that behaves like the
existing drive-mirror HMP command and takes a sync mode.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The 1980 epoch is used by the ARC PALcode for NT. But we're emulating
a system using the SRM PALcode. Using the proper epoch results in less
confusion in the guest userland.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Anthony Liguori [Fri, 12 Jul 2013 19:37:47 +0000 (14:37 -0500)]
ioport: remove LITTLE_ENDIAN mark for portio
Setting it to LE forces a byte swap when host != guest endian but
this makes no sense at all.
Herve made the suggestion upon observing that word writes/reads
were broken into byte writes/reads in such a way as to assume
devices are interpret registers as LE.
However, even if this were a problem, marking the region as LE is
not useful because what's essentially happening here is that LE is
open coded. So by marking it LE in MemoryRegionOps, we're doing a
superflous swap.
Now, the portio code is suspicious to begin with. The dispatch
layer really has no purpose in splitting I/O requests in the first
place...
Cc: Hervé Poussineau <hpoussin@reactos.org> Cc: Alex Graf <agraf@suse.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Chegu Vinod [Mon, 24 Jun 2013 09:47:39 +0000 (03:47 -0600)]
Force auto-convegence of live migration
If a user chooses to turn on the auto-converge migration capability
these changes detect the lack of convergence and throttle down the
guest. i.e. force the VCPUs out of the guest for some duration
and let the migration thread catchup and help converge.
Verified the convergence using the following :
- Java Warehouse workload running on a 20VCPU/256G guest(~80% busy)
- OLTP like workload running on a 80VCPU/512G guest (~80% busy)
Sample results with Java warehouse workload : (migrate speed set to 20Gb and
migrate downtime set to 4seconds).
(qemu) info migrate
capabilities: xbzrle: off auto-converge: off <----
Migration status: active
total time: 1487503 milliseconds
expected downtime: 519 milliseconds
transferred ram: 383749347 kbytes
remaining ram: 2753372 kbytes
total ram: 268444224 kbytes
duplicate: 65461532 pages
skipped: 64901568 pages
normal: 95750218 pages
normal bytes: 383000872 kbytes
dirty pages rate: 67551 pages
---
(qemu) info migrate
capabilities: xbzrle: off auto-converge: on <----
Migration status: completed
total time: 241161 milliseconds
downtime: 6373 milliseconds
transferred ram: 28235307 kbytes
remaining ram: 0 kbytes
total ram: 268444224 kbytes
duplicate: 64946416 pages
skipped: 64903523 pages
normal: 7044971 pages
normal bytes: 28179884 kbytes
Signed-off-by: Chegu Vinod <chegu_vinod@hp.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
Chegu Vinod [Mon, 24 Jun 2013 09:49:42 +0000 (03:49 -0600)]
Add 'auto-converge' migration capability
The auto-converge migration capability allows the user to specify if they
choose live migration seqeunce to automatically detect and force convergence.
Signed-off-by: Chegu Vinod <chegu_vinod@hp.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
Chegu Vinod [Mon, 24 Jun 2013 09:49:41 +0000 (03:49 -0600)]
Introduce async_run_on_cpu()
Introduce an asynchronous version of run_on_cpu() i.e. the caller
doesn't have to block till the call back routine finishes execution
on the target vcpu.
Signed-off-by: Chegu Vinod <chegu_vinod@hp.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
Anthony Liguori [Fri, 12 Jul 2013 12:58:31 +0000 (07:58 -0500)]
Merge remote-tracking branch 'agraf/ppc-for-upstream' into staging
# By Alexander Graf (16) and others
# Via Alexander Graf
* agraf/ppc-for-upstream: (22 commits)
PPC: dbdma: Support more multi-issue DMA requests
PPC: Add timer handler for newworld mac-io
PPC: dbdma: Support unaligned DMA access
PPC: dbdma: Wait for DMA until we have data
PPC: dbdma: Move processing to io
PPC: dbdma: macio: Add DMA callback
PPC: dbdma: Move static bh variable to device struct
PPC: dbdma: Introduce kick function
PPC: dbdma: Move defines into header file
PPC: dbdma: Allow new commands in RUN state
PPC: dbdma: Fix debug print
PPC: Mac: Add debug prints in macio and dbdma code
PPC: dbdma: Replace tabs with spaces
PPC: Macio: Replace tabs with spaces
PPC: g3beige: Move secondary IDE bus to mac-io
PPC: Mac: Fix guest exported tbfreq values
target-ppc: Add POWER8 v1.0 CPU model
pseries: move interrupt controllers to hw/intc/
spapr: Respect -bios command line option for SLOF
spapr: Use named enum for function remove_hpte
...
Message-id: 1373562085-29728-1-git-send-email-agraf@suse.de Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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