Commit Graph

359 Commits

Author SHA1 Message Date
Eric Auger
385f57cf9a vfio: migration to trace points
This patch removes all DPRINTF and replace them by trace points.
A few DPRINTF used in error cases were transformed into error_report.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2014-12-19 14:40:06 -07:00
Hannes Reinecke
7957ee71c7 megasas: Fixup MSI-X handling
MSI-X works slightly different than INTx; the doorbell
registers are not necessarily used as MSI-X interrupts
are directed anyway. So the head pointer on the
reply queue needs to be updated as soon as a frame
is completed, and we can set the doorbell only
when in INTx mode.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-31 11:29:01 +01:00
Hannes Reinecke
6df5718bd3 megasas: Rework frame queueing algorithm
Windows requires the frames to be unmapped, otherwise we run
into a race condition where the updated frame data is not
visible to the guest.
With that we can simplify the queue algorithm and use a bitmap
for tracking free frames.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-31 11:29:01 +01:00
Hannes Reinecke
aaf2a859b6 megasas: Update queue logging
Improve queue logging by displaying head and tail pointer
of the completion queue.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-31 11:29:01 +01:00
Hannes Reinecke
96f8f23a1e megasas: Ignore duplicate init_firmware commands
The windows driver is sending several init_firmware commands
when in MSI-X mode. It is, however, using only the first
queue. So disregard any additional init_firmware commands
until the HBA is reset.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-31 11:29:00 +01:00
Hannes Reinecke
8d72db68fe megasas: Clear unit attention on initial reset
The EFI firmware doesn't handle unit attentions properly,
so we need to clear the Power On/Reset unit attention upon
initial reset.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-31 11:29:00 +01:00
Hannes Reinecke
77bb6b1710 megasas: Decode register names
To ease debugging we should be decoding
the register names.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-31 11:29:00 +01:00
Hannes Reinecke
7bd908491c megasas: simplify trace event messages
The trace events already contain the function name, so the actual
message doesn't need to contain any of these informations.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-31 11:28:59 +01:00
Markus Armbruster
4be746345f hw: Convert from BlockDriverState to BlockBackend, mostly
Device models should access their block backends only through the
block-backend.h API.  Convert them, and drop direct includes of
inappropriate headers.

Just four uses of BlockDriverState are left:

* The Xen paravirtual block device backend (xen_disk.c) opens images
  itself when set up via xenbus, bypassing blockdev.c.  I figure it
  should go through qmp_blockdev_add() instead.

* Device model "usb-storage" prompts for keys.  No other device model
  does, and this one probably shouldn't do it, either.

* ide_issue_trim_cb() uses bdrv_aio_discard() instead of
  blk_aio_discard() because it fishes its backend out of a BlockAIOCB,
  which has only the BlockDriverState.

* PC87312State has an unused BlockDriverState[] member.

The next two commits take care of the latter two.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20 14:02:25 +02:00
David Hildenbrand
c9e659c9ee s390x/kvm: propagate s390 cpu state to kvm
Let QEMU propagate the cpu state to kvm. If kvm doesn't yet support it, it is
silently ignored as kvm will still handle the cpu state itself in that case.

The state is not synced back, thus kvm won't have a chance to actively modify
the cpu state. To do so, control has to be given back to QEMU (which is already
done so in all relevant cases).

Setting of the cpu state can fail either because kvm doesn't support the
interface yet, or because the state is invalid/not supported. Failed attempts
will be traced

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
CC: Andreas Faerber <afaerber@suse.de>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-10-10 10:37:47 +02:00
David Hildenbrand
eb24f7c689 s390x/kvm: proper use of the cpu states OPERATING and STOPPED
This patch makes sure that halting a cpu and stopping a cpu are two different
things. Stopping a cpu will also set the cpu halted - this is needed for common
infrastructure to work (note that the stop and stopped flag cannot be used for
our purpose because they are already used by other mechanisms).

A cpu can be halted ("waiting") when it is operating. If interrupts are
disabled, this is called a "disabled wait", as it can't be woken up anymore. A
stopped cpu is treated like a "disabled wait" cpu, but in order to prepare for a
proper cpu state synchronization with the kvm part, we need to track the real
logical state of a cpu.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Andreas Faerber <afaerber@suse.de>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-10-10 10:37:47 +02:00
Peter Maydell
81ab11a7a5 Usual mix of patches, the most important being Alex and Marcelo's
kvmclock fix.  This was reverted last minute for 2.1, but it is now back
 with the problematic case fixed.
 
 Note: I will soon switch to a subkey for signing purposes.  To verify
 future signed pull requests from me, please update my key with
 "gpg --recv-keys 9B4D86F2".  You should see 3 new subkeys---the
 one for signing will be a 2048-bit RSA key, 4E6B09D7.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJUJXmEAAoJEBvWZb6bTYbyuZoP+gJScjcoHVL27YL6GqCsLzQ+
 swk/6TDaboR5+t3Tt1vHOWOvtXmoZlxp+sQU50ltiKS1mwRTsMAhEeTInTNPLJ6z
 aKX46QdvNib2bYdUgnl8nqOiKQAZiA6rR8os2lWJ3E8n1n6qBbeWwneQK2YvRaVf
 RMjmDm7sjhZt5h868O7SPNDSjk8k5TgYj5MOsDugFxQr6JXGxt8xmB+Ml6v6Ne+y
 ufDchXtBhANIkr1aNMeOBYdX+/wuY+fltjnG11xpuAL1a63F/b3EGvPoqUHQCZSd
 PzHmkSZV0z3rmgVTpcAHxSw2MxUEgmXLvxWAQTahrzGUi8mH3hF7z7zNqfULZWa1
 3hctUdlf9aWbIgdfEdBZqOjol58TYvgCjIa7W2upsvEf7sjctpCZnMmBi8vMM3FQ
 qv7S4139jN70+7zNY8CCnXPuOY63rsFTAs8XCPF7DL3HESzm7x8MEFgW7/7iJtwQ
 PNJVbJX8+FpDmdAy/fwkMKA8BvjmNBuIZrr9/IfFJ6uM70//brq3OXq25agToBpZ
 QYWW5CXYeQXurPBK1Q6XkGx61mNuc5zOveVS+8MhJKw9SiL/cIhQzrh3fgFtIP+e
 63LlufFPMA2+fhBJctptIoU9+XeUwalQic92ZqepuXB/OZV6vhhV9/K2zZMUMpl9
 B/Gg3cd1w5rMHg6O2kov
 =nP/e
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

Usual mix of patches, the most important being Alex and Marcelo's
kvmclock fix.  This was reverted last minute for 2.1, but it is now back
with the problematic case fixed.

Note: I will soon switch to a subkey for signing purposes.  To verify
future signed pull requests from me, please update my key with
"gpg --recv-keys 9B4D86F2".  You should see 3 new subkeys---the
one for signing will be a 2048-bit RSA key, 4E6B09D7.

# gpg: Signature made Fri 26 Sep 2014 15:34:44 BST using RSA key ID 9B4D86F2
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg:                 aka "Paolo Bonzini <bonzini@gnu.org>"

* remotes/bonzini/tags/for-upstream:
  kvm/valgrind: don't mark memory as initialized
  po: fix conflict with %.mo rule in rules.mak
  kvmvapic: fix migration when VM paused and when not running Windows
  serial: check if backed by a physical serial port at realize time
  serial: reset state at startup
  target-i386: update fp status fix
  hw/dma/i8257: Silence phony error message
  kvmclock: Ensure time in migration never goes backward
  kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation
  Introduce cpu_clean_all_dirty
  pit: fix pit interrupt can't inject into vm after migration

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-26 15:41:50 +01:00
Alex Bennée
bc0d104c6a ohci: drop computed flags from trace events
This exceeded the trace argument limit for LTTNG UST and wasn't really
needed as the flags value is stored anyway. Dropping this fixes the
compile failure for UST. It can probably be merged with the previous
trace shortening patch.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-26 09:43:06 +01:00
Alexey Kardashevskiy
3af8f177fa ohci: Split long traces to smaller ones
Recent traces rework introduced 2 tracepoints with 13 and 20
arguments. When dtrace backend is selected
(--enable-trace-backend=dtrace), compile fails as
sys/sdt.h defines DTRACE_PROBE up to DTRACE_PROBE12 only.

This splits long tracepoints.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-26 09:43:06 +01:00
Markus Armbruster
40893768df trace-events: Fix comments pointing to source files
A few files have been renamed without updating their comment here.  A
few events have been added in the wrong place.  Clean that up.

Comments with no space after the '#' look ugly and confuse
cleanup-trace-events.pl.  Insert a space.

scripts/cleanup-trace-events.pl is now happy again.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1411476811-24251-5-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-26 09:34:39 +01:00
Markus Armbruster
4d249a2074 trace-events: Drop orphaned monitor trace event
Event monitor_protocol_event is unused since commit 7517517.  Drop it.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1411476811-24251-4-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-26 09:34:38 +01:00
Markus Armbruster
8a55acb1e0 trace-events: Drop unused megasas trace event
Event megasas_io_read was added in commit e8f943c, but never used.
Drop it.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1411476811-24251-3-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-26 09:34:38 +01:00
Stefan Hajnoczi
44e7ebb8bb trace-events: drop orphan iscsi trace events
iscsi_aio_write16_cb, iscsi_aio_writev, iscsi_aio_read16_cb, and
iscsi_aio_readv have not not been in use since commit
063c3378a9 ("block/iscsi: introduce
bdrv_co_{readv, writev, flush_to_disk}").

These were the only trace events in block/iscsi.c so drop the the
trace.h include.

Cc: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1411394595-15300-4-git-send-email-stefanha@redhat.com
2014-09-26 09:34:38 +01:00
Stefan Hajnoczi
f4026f269a trace-events: drop orphan usb_mtp_data_out
This trace event was added in commit
840a178c94 ("usb: mtp filesharing") but
never used.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1411394595-15300-3-git-send-email-stefanha@redhat.com
2014-09-26 09:34:38 +01:00
Stefan Hajnoczi
0bc375eb51 trace-events: drop orphan virtio_blk_data_plane_complete_request
This trace event has not been in use since commit
b002254dbd ("virtio-blk: Unify
{non-,}dataplane's request handlings").

Cc: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1411394595-15300-2-git-send-email-stefanha@redhat.com
2014-09-26 09:34:38 +01:00
Alexey Kardashevskiy
dc1f598845 ohci: Convert fprint/DPRINTF/print to traces
This converts many kinds of debug prints to traces.

This implements packets logging to avoid unnecessary calculations if
usb_ohci_td_pkt_short/usb_ohci_td_pkt_long is not enabled.

This makes OHCI errors (such as "DMA error") invisible by default.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-09-23 12:51:06 +02:00
Philipp Hahn
7dbb4c49bf hw/dma/i8257: Silence phony error message
Convert into trace event. Otherwise the message
	dma: unregistered DMA channel used nchan=0 dma_pos=0 dma_len=1
gets printed every time and fills up the log-file with 50 MiB / minute.

Signed-off-by: Philipp Hahn <hahn@univention.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-16 12:35:02 +02:00
Gerd Hoffmann
30f1e661b6 console: stop using PixelFormat
With this patch the qemu console core stops using PixelFormat and pixman
format codes side-by-side, pixman format code is the primary way to
specify the DisplaySurface format:

 * DisplaySurface stops carrying a PixelFormat field.
 * qemu_create_displaysurface_from() expects a pixman format now.

Functions to convert PixelFormat to pixman_format_code_t (and back)
exist for those who still use PixelFormat.   As PixelFormat allows
easy access to masks and shifts it will probably continue to exist.

[ xenfb added by Benjamin Herrenschmidt ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-09-05 13:27:11 +02:00
Gonglei
d733f74c33 usb: add usb host adapters exit trace
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-08-29 12:52:14 +02:00
Amit Shah
4ac4458076 virtio-rng: add some trace events
Add some trace events to virtio-rng for easier debugging

Signed-off-by: Amit Shah <amit.shah@redhat.com>

Reviewed-by: Amos Kong <akong@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12 14:29:55 +01:00
Alex Bennée
6db8b53866 trace: add some tcg tracing support
This adds a couple of tcg specific trace-events which are useful for
tracing execution though tcg generated blocks. It's been tested with
lttng user space tracing but is generic enough for all systems. The tcg
events are:

  * translate_block - when a subject block is translated
  * exec_tb - when a translated block is entered
  * exec_tb_exit - when we exit the translated code
  * exec_tb_nocache - special case translations

Of course we can only trace the entrance to the first block of a chain
as each block will jump directly to the next when it can. See the -d
nochain patch to allow more complete tracing at the expense of
performance.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12 14:26:12 +01:00
Yang Zhiyong
bc78cff975 trace: add qemu_system_powerdown_request and qemu_system_shutdown_request trace events
We have the experience that the guest doesn't stop successfully
though it was instructed to shut down.

The root cause may be not in QEMU mostly.  However, QEMU is often
suspected at the beginning just because the issue occurred in
virtualization environment.

Therefore, we need to affirm that QEMU received the shutdown
request and raised ACPI irq from "virsh shutdown" command,
virt-manger or stopping QEMU process to the VM .
So that we can affirm the problems was belonged to the Guset OS
rather than the QEMU itself.

When we stop guests by "virsh shutdown" command or virt-manger,
or stopping QEMU process, qemu_system_powerdown_request() or
qemu_system_shutdown_request() is called. Then the below functions
in main_loop_should_exit() of Vl.c are called roughly in the
following order.

	if (qemu_powerdown_requested())
		qemu_system_powerdown()
			monitor_protocol_event(QEVENT_POWERDOWN, NULL)

	OR

	if(qemu_shutdown_requested()}
		monitor_protocol_event(QEVENT_SHUTDOWN, NULL);

The tracepoint of monitor_protocol_event() already exists, but no
tracepoints are defined for qemu_system_powerdown_request() and
qemu_system_shutdown_request(). So this patch adds two tracepoints for
the two functions. We believe that it will become much easier to
isolate the problem mentioned above by these tracepoints.

Signed-off-by: Yang Zhiyong <yangzy.fnst@cn.fujitsu.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-07-01 10:56:13 +02:00
Alexey Kardashevskiy
9a321e9234 spapr_pci: Use XICS interrupt allocator and do not cache interrupts in PHB
Currently SPAPR PHB keeps track of all allocated MSI (here and below
MSI stands for both MSI and MSIX) interrupt because
XICS used to be unable to reuse interrupts. This is a problem for
dynamic MSI reconfiguration which happens when guest reloads a driver
or performs PCI hotplug. Another problem is that the existing
implementation can enable MSI on 32 devices maximum
(SPAPR_MSIX_MAX_DEVS=32) and there is no good reason for that.

This makes use of new XICS ability to reuse interrupts.

This reorganizes MSI information storage in sPAPRPHBState. Instead of
static array of 32 descriptors (one per a PCI function), this patch adds
a GHashTable when @config_addr is a key and (first_irq, num) pair is
a value. GHashTable can dynamically grow and shrink so the initial limit
of 32 devices is gone.

This changes migration stream as @msi_table was a static array while new
@msi_devs is a dynamic hash table. This adds temporary array which is
used for migration, it is populated in "spapr_pci"::pre_save() callback
and expanded into the hash table in post_load() callback. Since
the destination side does not know the number of MSI-enabled devices
in advance and cannot pre-allocate the temporary array to receive
migration state, this makes use of new VMSTATE_STRUCT_VARRAY_ALLOC macro
which allocates the array automatically.

This resets the MSI configuration space when interrupts are released by
the ibm,change-msi RTAS call.

This fixed traces to be more informative.

This changes vmstate_spapr_pci_msi name from "...lsi" to "...msi" which
was incorrect by accident. As the internal representation changed,
thus bumps migration version number.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[agraf: drop g_malloc_n usage]
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:27 +02:00
Alexey Kardashevskiy
51bba713fe xics: Implement xics_ics_free()
This implements interrupt release function so IRQs can be returned back
to the pool for reuse in cases such as PCI hot plug.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:26 +02:00
Alexey Kardashevskiy
bee763dbfb spapr: Move interrupt allocator to xics
The current allocator returns IRQ numbers from a pool and does not
support IRQs reuse in any form as it did not keep track of what it
previously returned, it only keeps the last returned IRQ. Some use
cases such as PCI hot(un)plug may require IRQ release and reallocation.

This moves an allocator from SPAPR to XICS.

This switches IRQ users to use new API.

This uses LSI/MSI flags to know if interrupt is allocated.

The interrupt release function will be posted as a separate patch.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:26 +02:00
Igor Mammedov
2e1ac493f1 trace: pc: add PC_DIMM slot & address allocation
Add mhp_pc_dimm_assigned_slot & mhp_pc_dimm_assigned_address
events to trace which address and slot where assigned to
plugged in PC_DIMM device on target-i386 machine.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:50 +03:00
Igor Mammedov
dfe292ffc4 trace: add acpi memory hotplug IO region events
Add events for tracing accesses to memory hotplug IO ports.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19 16:41:50 +03:00
Alexey Kardashevskiy
da95324ebe spapr_iommu: Enable multiple TCE requests
Currently only single TCE entry per request is supported (H_PUT_TCE).
However PAPR+ specification allows multiple entry requests such as
H_PUT_TCE_INDIRECT and H_STUFF_TCE. Having less transitions to the host
kernel via ioctls, support of these calls can accelerate IOMMU operations.

This implements H_STUFF_TCE and H_PUT_TCE_INDIRECT.

This advertises "multi-tce" capability to the guest if the host kernel
supports it (KVM_CAP_SPAPR_MULTITCE) or guest is running in TCG mode.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:39 +02:00
Alexey Kardashevskiy
3794d5482d spapr: Implement processor compatibility in ibm, client-architecture-support
Modern Linux kernels support last POWERPC CPUs so when a kernel boots,
in most cases it can find a matching cpu_spec in the kernel's cpu_specs
list. However if the kernel is quite old, it may be missing a definition
of the actual CPU. To provide an ability for old kernels to work on modern
hardware, a Processor Compatibility Mode has been introduced
by the PowerISA specification.

>From the hardware prospective, it is supported by the Processor
Compatibility Register (PCR) which is defined in PowerISA. The register
enables one of the compatibility modes (2.05/2.06/2.07).
Since PCR is a hypervisor privileged register and cannot be
directly accessed from the guest, the mode selection is done via
ibm,client-architecture-support (CAS) RTAS call using which the guest
specifies what "raw" and "architected" CPU versions it supports.
QEMU works out the best match, changes a "cpu-version" property of
every CPU and notifies the guest about the change by setting these
properties in the buffer passed as a response on a custom H_CAS hypercall.

This implements ibm,client-architecture-support parameters parsing
(now only for PVRs) and cooks the device tree diff with new values for
"cpu-version", "ibm,ppc-interrupt-server#s" and
"ibm,ppc-interrupt-server#s" properties.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:38 +02:00
Alexey Kardashevskiy
2a6593cb6a spapr: Add ibm, client-architecture-support call
The PAPR+ specification defines a ibm,client-architecture-support (CAS)
RTAS call which purpose is to provide a negotiation mechanism for
the guest and the hypervisor to work out the best compatibility parameters.
During the negotiation process, the guest provides an array of various
options and capabilities which it supports, the hypervisor adjusts
the device tree and (optionally) reboots the guest.

At the moment the Linux guest calls CAS method at early boot so SLOF
gets called. SLOF allocates a memory buffer for the device tree changes
and calls a custom KVMPPC_H_CAS hypercall. QEMU parses the options,
composes a diff for the device tree, copies it to the buffer provided
by SLOF and returns to SLOF. SLOF updates the device tree and returns
control to the guest kernel. Only then the Linux guest parses the device
tree so it is possible to avoid unnecessary reboot in most cases.

The device tree diff is a header with an update format version
(defined as 1 in this patch) followed by a device tree with the properties
which require update.

If QEMU detects that it has to reboot the guest, it silently does so
as the guest expects reboot to happen because this is usual pHyp firmware
behavior.

This defines custom KVMPPC_H_CAS hypercall. The current SLOF already
has support for it.

This implements stub which returns very basic tree (root node,
no properties) to the guest.

As the return buffer does not contain any change, no change in behavior is
expected.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:37 +02:00
Alexey Kardashevskiy
98a8b52442 spapr: Add support for time base offset migration
This allows guests to have a different timebase origin from the host.

This is needed for migration, where a guest can migrate from one host
to another and the two hosts might have a different timebase origin.
However, the timebase seen by the guest must not go backwards, and
should go forwards only by a small amount corresponding to the time
taken for the migration.

This is only supported for recent POWER hardware which has the TBU40
(timebase upper 40 bits) register. That includes POWER6, 7, 8 but not
970.

This adds kvm_access_one_reg() to access a special register which is not
in env->spr. This requires kvm_set_one_reg/kvm_get_one_reg patch.

The feature must be present in the host kernel.

This bumps vmstate_spapr::version_id and enables new vmstate_ppc_timebase
only for it. Since the vmstate_spapr::minimum_version_id remains
unchanged, migration from older QEMU is supported but without
vmstate_ppc_timebase.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:35 +02:00
Dominik Dingel
4cb88c3c37 s390x/kvm: enable/reset cmma via vm attributes
Exploit the new api for userspace-controlled cmma. If supported, enable
cmma during kvm initialization and register a reset handler for cmma,
which is also called directly from the load IPL code.

The reset functionality is needed to reset the cmma state of the guest
pages, e.g. if a system reset is triggered via qemu monitor; otherwise
this could result in data corruption.

A guest triggered reboot may now lead to multiple cmma resets; this is
OK, however, as this is slowpath anyway and the simplest way to achieve
the intended effects.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-10 09:50:27 +02:00
Peter Maydell
82ea61c6da qtest: improve ehci/uhci test
usb: misc fixes, mostly for usb3/xhci
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJTjIziAAoJEEy22O7T6HE4HNMP/A9kbK49yK4o+/9tdemCsNnD
 KfDlt8K+NPnI1VzhOTOpbFN1ci5Oq1VQ0syw6uIwU5v8E0ZXKoS7uqIYKTx2rjfX
 w5tGSlK/gjYGLeN/VhbIOcELuBo2hdUDzYEpjdcUZ0L4xkKRVwoN30P292/KlRTu
 ZBOdaz4JlrGJRTUgb35GaVNhtSFAdIPNUHlzdyq+lJJuJq4quQh4mO3J/eQqRveJ
 EiLRKvc1FV4Z0tLZ3tzKemDYGJoA6conRCe+Xt+fmdlROm/037HjQ+/KqUyXKdFs
 hpYAj58bKrtIE9Dyo3MwD7/4R2XgkDYNGXeGlrGTgmkhwujme8vB/K57sqYlLnE1
 1iCf03gXd+Ap1zU7BTv+abFfuA/7SFnkIgs3+zU68UFfmiBKGDQgxLCnqGMWlari
 DpIf94T7ZLdNz6sc4FG4gQCP+aVJYTUjkjtunfJMfE/qz6Xb5BJQIPc3aHnAsqrb
 LG75rjJfS1rh1+SvNm7f46fC+7A9eKYOlbkbH8c3BQDCJkZyeWovnml4xIlLkvkg
 8xJB5UJVb4B4MKQW7Zi0hrDaN8/GVVyWymtt3Dl/I2iHBdV2Z/U+2/rFtLtZQ1zi
 oLl+ZteHaU3hnr5DNns3DuMSG33UT+o9gzaHsUldetwLiyGOiUC2i4P3xPD7fPID
 mJKO98266m9KMshEdw7k
 =4LqT
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-8' into staging

qtest: improve ehci/uhci test
usb: misc fixes, mostly for usb3/xhci

# gpg: Signature made Mon 02 Jun 2014 15:40:34 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-usb-8:
  xhci: order superspeed ports first
  xhci: make port reset trace point more verbose
  usb: add usb_pick_speed
  usb-host: add HAVE_STREAMS define
  usb-host: allow attaching usb3 devices to ehci
  usb: improve ehci/uhci test
  usb: move ehci register defines to header file
  usb: add uhci port status reserved bit
  usb: move uhci register defines to header file
  qtest: fix qpci_config_writel

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-02 17:07:21 +01:00
Gerd Hoffmann
4006617552 vnc: add trace events for key events
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-06-02 16:29:01 +02:00
Gerd Hoffmann
7bd3055ffd xhci: make port reset trace point more verbose
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-06-02 16:29:00 +02:00
Peter Maydell
109519fd32 gtk: ui overhaul, multiwindow support.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJTgvNPAAoJEEy22O7T6HE4jawQANUGoa3wgDawhjj3OGSw0Ik8
 OvcoVdGUXPYTDlBdd7165aNuQvcVobq+Ox2/ghkZozOUZWts4KUdshTNx7n51mrR
 tPDlsOwcowXuhJxwkykIbE2uT4cQ374l/G0gnpc6erV4MV5GVkm7FnBsZeCGKEBu
 +CMb8w6gWY6w7Q++BH8Sq0BBV7z+w3dIFpBRGrFgFWkBMdyRJRXCF3r9zqdkb39J
 RyoxRnwQXbzIfJx9suvSLiuXU2w7D6uQ2wQiprKlGW7MaxgDeSBihr1B6eyoT+VW
 2XEDcrY02AgwgCWkOSVDn4S/qWVoXv02o1sfWqyr4ADJNYMXaqwtuFtsI9q6F77M
 l8PmdJm8K8tkgsioAzrfcxkGZ17Yd3xZLL0pzRjOP/tsxhL0VdK/E286+Rg1Gl8w
 1rnNrZInWNm6JjQvzUc14+UVbcb8IGI5VbGmHulJxu3QovcxOkRffAbAvy+ESfRw
 q3kokMfO4eFTQ3xPL4lcoPajjaXlZ2nujkyA31XjNnMOYH0Ns7mU0W+hB5uaLWaS
 0FkmmmfNShhI5jy4dlI11DA9fIPDcEttzEgmkBr5FWft4Mz+/HjrS50CHnvL4MIA
 ma0TFgR7fgOkb1A/hS0CkqiYSIXS5CsJMKD/fNn0olLeqdaTpWpL5vF10Dh/hUPQ
 +GLzLmvcCGXsZUguJXpu
 =418E
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/pull-gtk-7' into staging

gtk: ui overhaul, multiwindow support.

# gpg: Signature made Mon 26 May 2014 08:54:55 BST using RSA key ID D3E87138
# gpg: Can't check signature: public key not found

* remotes/kraxel/tags/pull-gtk-7: (24 commits)
  gtk: workaround gtk2 vte resize issue
  gtk: window sizing overhaul
  gtk: zap unused global_state
  gtk: Add handling for the xfree86 keycodes
  gtk: enable untabify for gfx
  gtk: detached window pointer grabs
  gtk: update all windows on mouse mode changes
  gtk: fix grab checks
  gtk: update gd_update_caption
  gtk: skip keyboard grab when hover autograb is active
  gtk: keep track of grab owner
  gtk: add gd_grab trace event
  gtk: add tab to trace events
  gtk: allow moving tabs to windows and back.
  gtk: simplify resize
  gtk: use device type as label
  gtk: support multiple gfx displays
  gtk: move vga state into VirtualGfxConsole
  gtk: VirtualConsole restruction
  gtk: remove page numbering assumtions from the code
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-28 11:18:58 +01:00
Peter Maydell
4aa23452e3 input: add event routing and multiseat support.
input: misc bugfixes and minor improvements.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJTguLNAAoJEEy22O7T6HE4d3MP/2+JYwz9ZiCuzBTriUDvMGpg
 ujCT5bk2Dcd3wHlrFfRX2saRxskcWstWrOuy6IwygSSpPRlqF67gLUqgByjAwFwJ
 g/JA4BGKrsFsI20XWkzB55e4FmbA+eixBEnDnuUHwvJebS1aCHNrb352E9nWFMne
 opsbpkCFkZULMXsqnELgsldqTaW0huSgdOFa0WsCPWi9rMdJL2SJjDvLgUlP4YVB
 v22AYSpZBd4TB+pSRxiUb2f4fVuAyaV5rCubJDKGLaKUuPZf3+2x664XuqYZ8RvI
 sOi6r2viamy7NuD9C6YOz2hwqeFj6A15viBo8KZmotAHB6/hi/3I0rLAQsRgxsGh
 zxNRHtOkF6n237KMWk7wh7SqGXtCr7mCe750bFru1W3FqlGlODAPYgIFODz1L50G
 51nlrXroFMkpM0FsLARtaeMoKo4k8e1o+08R9wVwkyNz+sPwlW7yoQKOlyWfmeKe
 GTTvRJWmggF3pqf6LEIQrgOQyBuArrX4SR1AeRzhYmw/H5h+Df7oeHAlv2Yx6Sus
 mAit/ExI9HeTE2BwyXCzu99LFAmogRvvB+45dbwC9INf537p9hdyKCyrFU1uQofw
 lw3cCfyNZu0BQR0YUpR2NCaFfWWkPQehi19kpKOpyiKscYy7RNJr10vaz9FuFppv
 x9nOKTuiaAMGIyJwWfmU
 =oPCg
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/pull-input-9' into staging

input: add event routing and multiseat support.
input: misc bugfixes and minor improvements.

# gpg: Signature made Mon 26 May 2014 07:44:29 BST using RSA key ID D3E87138
# gpg: Can't check signature: public key not found

* remotes/kraxel/tags/pull-input-9:
  docs: add multiseat.txt
  usb: add input routing support for tablet and keyboard
  sdl: pass key event source to input layer
  input: bind devices and input routing
  input: switch hid mouse and tablet to the new input layer api.
  input: switch hid keyboard to new input layer api.
  input: keymap: add meta keys
  input: add name to input_event_key_number
  input: add qemu_input_key_number_to_qcode
  input (curses): mask keycodes to remove modifier bits

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-28 10:33:05 +01:00
Gerd Hoffmann
2386a90730 input: add name to input_event_key_number
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-26 08:42:42 +02:00
Gerd Hoffmann
1c856da57b gtk: add gd_grab trace event
Input grab code is tricky, add some debug & trouble shooting aid.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-26 08:41:03 +02:00
Gerd Hoffmann
74444bc198 gtk: add tab to trace events
So you can see which of multiple displays (if present) was resized ;)

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-26 08:41:03 +02:00
Michael Walle
25156d1061 lm32: remove lm32_sys
Since we have now semihosting on the lm32 target, this device is no longer
needed. Remove it.

Signed-off-by: Michael Walle <michael@walle.cc>
2014-05-24 19:43:52 +02:00
Peter Maydell
5bc8f026dd Input code update:
- add keycode mapping helpers to core.
  - start switching devices to new input api.
  - misc bugfixes.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJTdbOhAAoJEEy22O7T6HE4cbsP/RanYDHsykxfgrDpz5FRPtBl
 qRLJbHYNHicD9jzRyp4LoEpgT78An4OHMsnSWDxyglnJAY3wO8UxzjmSc6Si3bNb
 Yiy137u2lwhm7THX0wsR+PclLqzHxFatfSLttYomuTGBJmxAW9M3ivd2LNKd1S9/
 3sDXlZSE+nl4btyXLtHAgVPbD/l4Vpi0F3/0cV3v8DDeH4p0Wpgboxf9Kby3KXIa
 rvsLZyJ9Ast4bDP4JLHYLnU9SN4V26TY5maSg5ka8D5Ha1T8YNW8qHq7BKA2vbAY
 Ic2X9piHq2VAH9XB4wIpY7Vc4B8ZDJJflWplAZrt1D5FgHqyskGXPuHfELvPt1gW
 sNkMIB848oxplX+p6g8kE+ZvGGIn9IEUScu7gxfEHRNqkaGVLPd2fZaacTd/6yxZ
 mTMZ1t69TXrXv35NP5AJRfLg3mJEcY3+nfvKZCN1OZwjh8n91kKvND4eN0Smmg9R
 ntqQfNuFMucHpMFoaiCabzARmCl63iKZ1cis14pEKdfsWaAK3rAbZmf9E181ewSE
 Z4ns8Yhw2S7WGb+EhDuKODiDTqUG2doiEMsVDcofOpE9vI25Hb/QQ+5AaiHGrKa1
 Hh5rl3NJn0//AnVsgS5qu65X7/1KkZD93i4aCY09h46BEb0kzqKLr+Si6l92a3hn
 PrWY+YL8jiVEgNr94lOj
 =DqKI
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/pull-input-8' into staging

Input code update:
 - add keycode mapping helpers to core.
 - start switching devices to new input api.
 - misc bugfixes.

# gpg: Signature made Fri 16 May 2014 07:43:45 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-input-8:
  input: sparc32 kbd: claim en-us layout
  input: sparc32 kbd: fix some key mappings
  input: remove sparc keymap hack
  input: switch sparc32 kbd to new input api
  input: switch ps/2 mouse to new input api
  input: switch ps/2 kbd to new input api
  input: use KeyValue directly in sendkey monitor command
  input: add qemu_input_handler_deactivate
  input: key mapping helpers
  ps2: set ps/2 output buffer size as the same as kernel

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-19 12:53:07 +01:00
Peter Maydell
6a23082b4e Merge remote-tracking branch 'remotes/bonzini/scsi-next' into staging
* remotes/bonzini/scsi-next:
  [PATCH] block/iscsi: bump year in copyright notice
  block/iscsi: allow cluster_size of 4K and greater
  block/iscsi: clarify the meaning of ISCSI_CHECKALLOC_THRES
  block/iscsi: speed up read for unallocated sectors
  block/iscsi: allow fall back to WRITE SAME without UNMAP
  MAINTAINERS: mark megasas as maintained
  megasas: Add MSI support
  megasas: Enable MSI-X support
  megasas: Implement LD_LIST_QUERY
  scsi: Improve error messages more
  scsi-disk: Improve error messager if can't get version number

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-19 12:30:06 +01:00
Gerd Hoffmann
65e7545ea3 input: switch sparc32 kbd to new input api
Nasty 0xe0 logic is gone.  We map through QKeyCode now, giving us a
nice, readable mapping table.

Quick smoke test in OpenFirmware looks ok.  Careful check from arch
maintainers would be very nice, especially on the capslock and numlock
logic.  I'm not fully sure whenever I got it translated correctly and
also what it is supposed to do in the first place ...

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-16 08:30:12 +02:00
Cornelia Huck
ada4135f84 kvm: make one_reg helpers available for everyone
s390x introduced helper functions for getting/setting one_regs with
commit 860643bc. However, nothing about these is s390-specific.

Alexey Kardashevskiy had already posted a general version, so let's
merge the two patches and massage the code a bit.

CC: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-13 13:11:08 +02:00