Memory regions can easily be 2^64 byte long and therefore overflow
for just a bit but that is enough for int128_get64() to assert.
This takes care of debug printing of huge section sizes.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Now that VFIO has a PCI hot reset interface, take advantage of it.
There are two modes that we need to consider. The first is when only
one device within the set of devices affected is actually assigned to
the guest. In this case the other devices are are just held by VFIO
for isolation and we can pretend they're not there, doing an entire
bus reset whenever the device reset callback is triggered. Supporting
this case separately allows us to do the best reset we can do of the
device even if the device is hotplugged.
The second mode is when multiple affected devices are all exposed to
the guest. In this case we can only do a hot reset when the entire
system is being reset. However, this also allows us to track which
individual devices are affected by a reset and only do them once.
We split our reset function into pre- and post-reset helper functions
prioritize the types of device resets available to us, and create
separate _one vs _multi reset interfaces to handle the distinct cases
above.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
During vfio-pci initfn, the device is not always in a state where the
option ROM can be read. In the case of graphics cards, there's often
no per function reset, which means we have host driver state affecting
whether the option ROM is usable. Ideally we want to move reading the
option ROM past any co-assigned device resets to the point where the
guest first tries to read the ROM itself.
To accomplish this, we switch the memory region for the option rom to
an I/O region rather than a memory mapped region. This has the side
benefit that we don't waste KVM memory slots for a BAR where we don't
care about performance. This also allows us to delay loading the ROM
from the device until the first read by the guest. We then use the
PCI config space size of the ROM BAR when setting up the BAR through
QEMU PCI.
Another benefit of this approach is that previously when a user set
the ROM to a file using the romfile= option, we still probed VFIO for
the parameters of the ROM, which can result in dmesg errors about an
invalid ROM. We now only probe VFIO to get the ROM contents if the
guest actually tries to read the ROM.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Not all resets are created equal. PM reset is not very reliable,
especially for GPUs, so we might want to opt for a bus reset if a
standard reset will only do a D3hot->D0 transition. We can also
use this to tell if the standard reset will do a bus reset (if
neither has_pm_reset or has_flr is probed, but the device still
supports reset).
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
When MSI is accelerated through KVM the vectors are only programmed
when the guest first enables MSI support. Subsequent writes to the
vector address or data fields are ignored. Unfortunately that means
we're ignore updates done to adjust SMP affinity of the vectors.
MSI SMP affinity already works in non-KVM mode because the address
and data fields are read from their backing store on each interrupt.
This patch stores the MSIMessage programmed into KVM so that we can
determine when changes are made and update the routes.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This includes pc and pci cleanups and enhancements,
and a virtio-net bugfix related to softmac programming.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into staging
pc,pci,virtio fixes and cleanups
This includes pc and pci cleanups and enhancements,
and a virtio-net bugfix related to softmac programming.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Sun 29 Sep 2013 01:51:16 AM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found
# By Michael S. Tsirkin (8) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
smbios: Factor out smbios_maybe_add_str()
smbios: Make multiple -smbios type= accumulate sanely
smbios: Improve diagnostics for conflicting entries
smbios: Convert to QemuOpts
smbios: Normalize smbios_entry_add()'s error handling to exit(1)
virtio-net: fix up HMP NIC info string on reset
pci: remove explicit check to 64K ioport size
piix4: disable io on reset
piix: use 64 bit window programmed by guest
q35: use 64 bit window programmed by guest
pci: add helper to retrieve the 64-bit range
range: add min/max operations on ranges
range: add Range to typedefs
q35: make pci window address/size match guest cfg
Message-id: 1380437951-21788-1-git-send-email-mst@redhat.com
# By Bandan Das (3) and Gerd Hoffmann (1)
# Via Gerd Hoffmann
* kraxel/audio.1:
audio: remove CONFIG_MIXEMU configure option
hda-codec: make mixemu selectable at runtime
hda-codec: refactor common definitions into a header file
audio maintainers update
Message-id: 1380011943-15083-1-git-send-email-kraxel@redhat.com
contains the fixes from the previous pull request, which did not make
it yet.
Overall it contains
- a fix for kexec without kdump (which uses diag308 subcode 0 instead of 1)
- several sclp related fixes
- some initial sclp migration code
- the sclp line mode console
- A fix for a boot problem with the virtio ccw ipl bios
- zeroed out padding bytes for the notes section of dump-guest-memory
- some cleanups
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Merge remote-tracking branch 'borntraeger/tags/s390-next-20130924' into staging
This is a bunch of fixes/changes for the s390 architecture. It also
contains the fixes from the previous pull request, which did not make
it yet.
Overall it contains
- a fix for kexec without kdump (which uses diag308 subcode 0 instead of 1)
- several sclp related fixes
- some initial sclp migration code
- the sclp line mode console
- A fix for a boot problem with the virtio ccw ipl bios
- zeroed out padding bytes for the notes section of dump-guest-memory
- some cleanups
# gpg: Signature made Tue 24 Sep 2013 02:18:44 AM CDT using RSA key ID B5A61C7C
# gpg: Can't check signature: public key not found
# By Christian Borntraeger (6) and others
# Via Christian Borntraeger
* borntraeger/tags/s390-next-20130924:
s390/sclplmconsole: Add support for SCLP line-mode console
s390/ebcdic: Move conversion tables to header file
s390/eventfacility: allow childs to handle more than 1 event type
s390/eventfacility: remove unused event_type variable
s390/eventfacility: Fix receive/send masks
s390/eventfacility: fix multiple Read Event Data sources
s390/sclp: add reset() functions
s390/sclpquiesce: Add code to support live migration
s390/sclpconsole: Add code to support live migration for sclpconsole
s390/sclpconsole: modify definition of input buffer
s390/kexec: Implement diag308 subcode 0
s390/ioinst: Moved the CC setting to the IO instruction handlers
s390/cpu: Make setcc() function available to other files
s390/ipl: Update the s390-ccw.img rom
s390/ipl: Fix waiting for virtio processing
s390/dump: zero out padding bytes in notes sections
s390/kvm: Add check for priviledged SCLP handler
Message-id: 1380007671-18976-1-git-send-email-borntraeger@de.ibm.com
Currently, -smbios type=T,NAME=VAL,... adds one field (T,NAME) with
value VAL to fw_cfg for each unique NAME. If NAME occurs multiple
times, the last one's VAL is used (before the QemuOpts conversion, the
first one was used).
Multiple -smbios can add multiple fields with the same (T, NAME).
SeaBIOS reads all of them from fw_cfg, but uses only the first field
(T, NAME). The others are ignored.
"First one wins, subsequent ones get ignored silently" isn't nice. We
commonly let the last option win. Useful, because it lets you
-readconfig first, then selectively override with command line
options.
Clean up -smbios to work the common way. Accumulate the settings,
with later ones overwriting earlier ones. Put the result into fw_cfg
(no more useless duplicates).
Bonus cleanup: qemu_uuid_parse() no longer sets SMBIOS system uuid by
side effect.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
We allow either tables or fields for the same type. Makes sense,
because SeaBIOS uses fields only when no tables are present.
We do this by searching the SMBIOS blob for a previously added table
or field. Error messages look like this:
qemu-system-x86_64: -smbios type=1,serial=42: SMBIOS type 1 table already defined, cannot add field
User needs to know that "table" is defined by -smbios file=..., and
"field" by -smbios type=...
Instead of searching the blob, record additions of interest, and check
that. Simpler, and makes better error messages possible:
qemu-system-x86_64: -smbios file=smbios_type_1.bin: Can't mix file= and type= for same type
qemu-system-x86_64: -smbios type=1,serial=42,serial=99: This is the conflicting setting
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
So that it can be set in config file for -readconfig.
This tightens parsing of -smbios, and makes it more consistent with
other options: unknown parameters are rejected, numbers with trailing
junk are rejected, when a parameter is given multiple times, last
rather than first wins, ...
MST: drop one chunk to fix build errors
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
It exits on all error conditions but one, where it returns -1.
Normalize, and return void.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Currently Xen hvm s3 has a bug coming from the difference between
qemu-traditioanl and qemu-xen. For qemu-traditional, the way to
resume from hvm s3 is via 'xl trigger' command. However, for
qemu-xen, the way to resume from hvm s3 inherited from standard
qemu, i.e. via QMP, and it doesn't work under Xen.
The root cause is, for qemu-xen, 'xl trigger' command didn't reset
devices, while QMP didn't unpause hvm domain though they did qemu
system reset.
We have two qemu patches and one xl patch to fix Xen hvm s3 bug.
This patch is the qemu patch 1. It adjusts qemu wakeup so that
Xen s3 resume logic (which will be implemented at qemu patch 2)
will be notified after qemu system reset.
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Define PARAM so that we have two versions of the "desc_codec
and family" structs. Add a property called "mixer" whose default
value depends on whether CONFIG_MIXEMU is defined or not which
will help us call the appropriate instance init functions.
Signed-off-by: Bandan Das <bsd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Move common defines and structs to a header file.
The next commit will include it twice, once for a device with a
mixer, and once for device without a mixer.
Signed-off-by: Bandan Das <bsd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
# By Aurelien Jarno (1) and Vincenzo Maffione (1)
# Via Stefan Hajnoczi
* stefanha/net:
e1000: NetClientInfo.receive_iov implemented
pcnet-pci: mark I/O and MMIO as LITTLE_ENDIAN
Message-id: 1379699613-5338-1-git-send-email-stefanha@redhat.com
# By Stefan Hajnoczi (4) and others
# Via Stefan Hajnoczi
* stefanha/block:
virtio-blk: do not relay a previous driver's WCE configuration to the current
blockdev: do not default cache.no-flush to true
block: don't lose data from last incomplete sector
qcow2: Correct snapshots size for overlap check
coroutine: fix /perf/nesting coroutine benchmark
coroutine: add qemu_coroutine_yield benchmark
qemu-timer: do not take the lock in timer_pending
qemu-timer: make qemu_timer_mod_ns() and qemu_timer_del() thread-safe
qemu-timer: drop outdated signal safety comments
osdep: warn if open(O_DIRECT) on fails with EINVAL
libcacard: link against qemu-error.o for error_report()
Message-id: 1379698931-946-1-git-send-email-stefanha@redhat.com
# By Stefan Weil (8) and others
# Via Michael Tokarev
* mjt/trivial-patches:
tests/.gitignore: ignore test-throttle
exec: Fix broken build for MinGW (regression)
kvm: Fix compiler warning (clang)
tcg-sparc: Fix parenthesis warning
Makefile: Remove some more files when cleaning
target-i386: Fix segment cache dump
iov: avoid "orig_len may be used unitialized" warning
vscclient: remove unnecessary use of uninitialized variable
trace-events: Clean up with scripts/cleanup-trace-events.pl again
tci: Fix qemu-alpha on 32 bit hosts (wrong assertions)
*-user: Improve documentation for lock_user function
MAINTAINERS: Add missing entry to filelist for TCI target
translate-all: Fix formatting of dump output
*-user: Fix typo in comment (ulocking -> unlocking)
docs: Fix IO port number for CPU present bitmap.
q35: Fix typo in constant DEFUALT -> DEFAULT.
configure: Undefine _FORTIFY_SOURCE prior using it
Message-id: 1379696296-32105-1-git-send-email-mjt@msgid.tls.msk.ru
# By Alexey Kardashevskiy (3) and others
# Via Paolo Bonzini
* qemu-kvm/uq/master:
target-i386: add feature kvm_pv_unhalt
linux-headers: update to 3.12-rc1
target-i386: forward CPUID cache leaves when -cpu host is used
linux-headers: update to 3.11
kvm: fix traces to use %x instead of %d
kvmvapic: Clear also physical ROM address when entering INACTIVE state
kvmvapic: Enter inactive state on hardware reset
kvmvapic: Catch invalid ROM size
kvm irqfd: support direct msimessage to irq translation
fix steal time MSR vmsd callback to proper opaque type
kvm: warn if num cpus is greater than num recommended
cpu: Move cpu state syncs up into cpu_dump_state()
exec: always use MADV_DONTFORK
Message-id: 1379694292-1601-1-git-send-email-pbonzini@redhat.com
# By Hervé Poussineau (5) and Stefan Weil (1)
# Via Paolo Bonzini
* bonzini/scsi-next:
block/iscsi: Drop iscsi_co_get_block_status for older versions of libiscsi
lsi: add 53C810 variant
lsi: remove todo
lsi: ignore write accesses to CTEST0 registers
lsi: check ssid versus sdid only if ssid is valid
lsi: use constant name instead of its value
This patch implements the NetClientInfo.receive_iov method for the
e1000 device emulation. In this way a network backend that uses
qemu_sendv_packet() can deliver the fragmented packet without
requiring an additional copy in the frontend/backend network code
(nc_sendv_compat() function).
The existing method NetClientInfo.receive has been reimplemented
using the new method.
Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Now that the memory subsystem is propagating the endianness correctly,
the pcnet-pci device should have its I/O ports and MMIO memory marked
as LITTLE_ENDIAN, as PCI devices are little endian.
This makes the pcnet-pci NIC to work again on big endian MIPS Malta
(default NIC).
Cc: qemu-stable@nongnu.org
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The following sequence happens:
- the SeaBIOS virtio-blk driver does not support the WCE feature, which
causes QEMU to disable writeback caching
- the Linux virtio-blk driver resets the device, finds WCE is available
but writeback caching is disabled; tells block layer to not send cache
flush commands
- the Linux virtio-blk driver sets the DRIVER_OK bit, which causes
writeback caching to be re-enabled, but the Linux virtio-blk driver does
not know of this side effect and cache flushes remain disabled
The bug is at the third step. If the guest does know about CONFIG_WCE,
QEMU should ignore the WCE feature's state. The guest will control the
cache mode solely using configuration space. This change makes Linux
do flushes correctly, but Linux will keep SeaBIOS's writethrough mode.
Hence, whenever the guest is reset, the cache mode of the disk should
be reset to whatever was specified in the "-drive" option. With this
change, the Linux virtio-blk driver finds that writeback caching is
enabled, and tells the block layer to send cache flush commands
appropriately.
Reported-by: Rusty Russell <rusty@au1.ibm.com
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Report from clang analyzer:
clock.c:42:15: warning:
Value stored to 'cpu' during its initialization is never read
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Add simple support for SCLP line-mode also known as operating
system messages. This can be added in addition to or instead of
the SCLP full screen console with -device sclplmconsole.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Currently all handlers (quiesce, console) only handle one event type.
Some drivers will handle multiple (compatible) event types. Rework the
code accordingly.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
The event_type variable is never used. Get rid of it.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Make the handler for SCLP Read Event Data deal with notifications
for multiple sources correctly.
Signed-off-by: Ralf Hoppe <rhoppe@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
[split bigger patch into smaller independent chunks]
Reviewed-by: Alexander Graf <agraf@suse.de>
Add reset() functions for event-facility, sclpconsole, and sclpquiesce.
The reset() functions perform variable initialization
at IPL and e.g. when monitor system_reset is called.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This patch adds the necessary life migration pieces to sclpquiesce
by using the vmstate_register.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This patch adds the necessary life migration pieces to the sclp code
by using vmstate_register.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
To use VMState for migration, we need to adapt some sclp code:
- allocate console buffer as part of the console
- change semantic of sclpconsole offset fields
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
To avoid misinterpreting INACTIVE after migration as old qemu-kvm's
STANDBY, also clear rom_state_paddr when going back to this state.
CC: qemu-stable@nongnu.org
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
ROM layout may change after reset of devices are hotplugged, so we have
to pick up the physical address again when the ROM is initialized. This
is best achieved by resetting the state to INACTIVE.
CC: qemu-stable@nongnu.org
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
If not caught early, a zero-length ROM will cause a NULL-pointer access
later on in patch_hypercalls when allocating a zero-length ROM copy and
trying to read from it.
CC: qemu-stable@nongnu.org
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The USBPacket-s in the transfers need to be cleaned up so that the memory
allocated by the iovec in there gets freed.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
And use it instead of prying the USBEndpoint out of the packet struct
in various places.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Transfers are part of an epctx, which is part of a slot, which is part of
a xhci. Transfers cannot dynamically be moved from one epctx to another,
so once created their xhci, slotid and epid are constant, so lets set these
up at creation time, rather then re-initializing them with the same
value each time a transfer gets submitted.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
According to the xhci spec the total number of streams is
2 ^ (MaxPStreams + 1), and this is also how the Linux xhci driver
uses this field.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The usb-host code has been rewritten for qemu 1.5 to use libusb,
the old code has been left in as temporary fallback. Now we are
two releases further out, targeting the 1.7 release. No major
issues with the new code poped up until now. Time to remove it
from tre tree. Should we ever need it again for some reason --
git has a copy for us in the history.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
