Jeff Cody [Thu, 26 Jan 2017 01:08:20 +0000 (20:08 -0500)]
block: check full backing filename when searching protocol filenames
In bdrv_find_backing_image(), if we are searching an image for a backing
file that contains a protocol, we currently only compare unmodified
paths.
However, some management software will change the backing filename to be
a relative filename in a path. QEMU is able to handle this fine,
because internally it will use path_combine to put together the full
protocol URI.
However, this can lead to an inability to match an image during a QAPI
command that needs to use bdrv_find_backing_image() to find the image,
when it is searched by the full URI.
When searching for a protocol filename, if the straight comparison
fails, this patch will also compare against the full backing filename to
see if that is a match.
QingFeng Hao [Fri, 16 Dec 2016 05:20:40 +0000 (06:20 +0100)]
block/vmdk: Fix the endian problem of buf_len and lba
The problem was triggered by qemu-iotests case 055. It failed when it
was comparing the compressed vmdk image with original test.img.
The cause is that buf_len in vmdk_write_extent wasn't converted to
little-endian before it was stored to disk. But later vmdk_read_extent
read it and converted it from little-endian to cpu endian.
If the cpu is big-endian like s390, the problem will happen and
the data length read by vmdk_read_extent will become invalid!
The fix is to add the conversion in vmdk_write_extent, meanwhile,
repair the endianness problem of lba field which shall also be converted
to little-endian before storing to disk.
iotests: record separate timings per format,protocol pair
The 'check' program records timings for each test that
is run. These timings are only valid, however, for a
particular format/protocol combination. So if frequently
running 'check' with a variety of different formats or
protocols, the times printed can be very misleading.
Instead of having a single 'check.time' file, maintain
multiple 'check.time-$IMGPROTO-$IMGFMT' files.
Max Reitz [Thu, 1 Dec 2016 02:05:08 +0000 (03:05 +0100)]
qemu-img: Improve commit invalid base message
When trying to invoke qemu-img commit with a base image file name that
is not part of the top image's backing chain, the user receives a rather
plain "Base not found" error message. This is not really helpful because
it does not explain what "not found" means, potentially leaving the user
wondering why qemu cannot find a file despite it clearly existing in the
file system.
Improve the error message by clarifying that "not found" means "not
found in the top image's backing chain".
QingFeng Hao [Fri, 16 Dec 2016 05:47:23 +0000 (06:47 +0100)]
iotests: Fix a problem in common.filter
If TEST_DIR is set to /tmp, test case 144 will fail. The reason is that
TEST_DIR resembles 144's test image name tmp.qcow2.
When 144 is testing $TEST_DIR/tmp.qcow2, it wants to replace
$TEST_DIR/tmp.qcow2 to TEST_DIR/tmp.qcow2, but actually it will fail
and get TEST_DIRTEST_DIR.qcow2 in this case.
The fix is just to modify the code to replace $TEST_DIR/ with TEST_DIR/.
Ladi Prosek [Fri, 10 Feb 2017 16:47:11 +0000 (11:47 -0500)]
ahci: advertise HOST_CAP_64
The AHCI emulation code supports 64-bit addressing and should advertise this
fact in the Host Capabilities register. Both Linux and Windows drivers test
this bit to decide if the upper 32 bits of various registers may be written
to, and at least some versions of Windows have a bug where DMA is attempted
with an address above 4GB but, in the absence of HOST_CAP_64, the upper 32
bits are left unititialized which leads to a memory corruption.
[Maintainer edit:
This fixes https://bugzilla.redhat.com/show_bug.cgi?id=1411105,
which affects Windows Server 2008 SP2 in some cases.]
Thomas Huth [Fri, 10 Feb 2017 15:14:59 +0000 (16:14 +0100)]
tests/prom-env: Ease time-out problems on slow hosts
Peter Maydell recently ran into time-out problems with the
prom-env test on a rather slow ARM board. To tackle this issue,
we can speed up the test by running QEMU with "-nodefaults" for
the pseries machine, so that SLOF has less devices to scan during
boot, and by using the "nvramrc" environment variable instead of
"boot-command", since this variable is evaluated earlier in the
boot process.
And to be really sure that we do not face such time out problems
again, let's also increase the time out value from 100s to 120s
instead.
Alex Bennée [Fri, 20 Jan 2017 17:11:49 +0000 (17:11 +0000)]
.travis.yml: split VM based builds
The Trusty based builds run a little slower than the main container
based ones. This is also true for the latest version of Clang. The
builds are getting very close (and occasionally run over) the 50 minute
timeout. Rather than partitioning by target I just split them into
linux-user and system builds.
* remotes/kraxel/tags/pull-ui-20170209-2:
ui: add ability to specify multiple VNC listen addresses
util: add iterators for QemuOpts values
ui: let VNC server listen on all resolved IP addresses
ui: extract code to connect/listen from vnc_display_open
ui: refactor code for populating SocketAddress from vnc_display_open
ui: refactor VncDisplay to allow multiple listening sockets
ui: fix reporting of VNC auth in query-vnc-servers
ui: fix regression handling bare 'websocket' option to -vnc
vnc: do not disconnect on EAGAIN
ui/vnc: Drop unused vnc_has_job() and vnc_jobs_clear()
ui: add ability to specify multiple VNC listen addresses
This change allows the listen address and websocket address
options for -vnc to be repeated. This causes the VNC server
to listen on multiple addresses. e.g.
To iterate over all QemuOpts currently requires using a callback
function which is inconvenient for control flow. Add support for
using iterator functions more directly
ui: let VNC server listen on all resolved IP addresses
Remove the limitation that the VNC server can only listen on
a single resolved IP address. This uses the new DNS resolver
API to resolve a SocketAddress struct into an array of
SocketAddress structs containing raw IP addresses. The VNC
server will then attempt to listen on all resolved IP addresses.
The server must successfully listen on at least one of the
resolved IP addresses, otherwise an error will be reported.
ui: extract code to connect/listen from vnc_display_open
The code which takes a SocketAddress and connects/listens on the
network is going to get more complicated to deal with multiple
listeners. Pull it out into a separate method to avoid making the
vnc_display_open method even more complex.
ui: refactor code for populating SocketAddress from vnc_display_open
The code which interprets the CLI args to populate the SocketAddress
objects for plain & websockets VNC is quite complex already and will
need further enhancements shortly. Refactor it into separate methods
to avoid vnc_display_open getting even larger. As a side effect of
the refactoring, it is now possible to specify a listen address for
the websocket server explicitly. e.g,
-vnc localhost:5900,websockets=0.0.0.0:8080
will listen on localhost for the plain VNC server, but expose the
websockets VNC server on the public interface. This refactoring
also removes the restriction that prevents enabling websockets
when the plain VNC server is listening on a UNIX socket.
ui: refactor VncDisplay to allow multiple listening sockets
Currently there is only a single listener for plain VNC and
a single listener for websockets VNC. This means that if
getaddrinfo() returns multiple IP addresses, for a hostname,
the VNC server can only listen on one of them. This is
just bearable if listening on wildcard interface, or if
the host only has a single network interface to listen on,
but if there are multiple NICs and the VNC server needs
to listen on 2 or more specific IP addresses, it can't be
done.
This refactors the VncDisplay state so that it holds an
array of listening sockets, but still only listens on
one socket.
ui: fix reporting of VNC auth in query-vnc-servers
Currently the VNC authentication info is emitted at the
top level of the query-vnc-servers data. This is wrong
because the authentication scheme differs between plain
and websockets when TLS is enabled. We should instead
report auth against the individual servers. e.g.
This also future proofs the QMP schema so that we can
cope with multiple VNC server instances, listening on
different interfaces or ports, with different auth
setup.
ui: fix regression handling bare 'websocket' option to -vnc
The -vnc argument is documented as accepting two syntaxes for
the 'websocket' option, either a bare option name, or a port
number. If using the bare option name, it is supposed to apply
the display number as an offset to base port 5700. e.g.
-vnc localhost:3,websocket
should listen on port 5703, however, this was broken in 2.3.0 since
Michael Tokarev [Fri, 3 Feb 2017 09:52:29 +0000 (12:52 +0300)]
vnc: do not disconnect on EAGAIN
When qemu vnc server is trying to send large update to clients,
there might be a situation when system responds with something
like EAGAIN, indicating that there's no system memory to send
that much data (depending on the network speed, client and server
and what is happening). In this case, something like this happens
on qemu side (from strace):
qemu closes the socket before the retry, and obviously it gets EBADF
when trying to send to -1.
This is because there WAS a special handling for EAGAIN, but now it doesn't
work anymore, after commit 04d2529da27db512dcbd5e99d0e26d333f16efcc, because
now in all error-like cases we initiate vnc disconnect.
This change were introduced in qemu 2.6, and caused numerous grief for many
people, resulting in their vnc clients reporting sporadic random disconnects
from vnc server.
Fix that by doing the disconnect only when necessary, i.e. omitting this
very case of EAGAIN.
Hopefully the existing condition (comparing with QIO_CHANNEL_ERR_BLOCK)
is sufficient, as the original code (before the above commit) were
checking for other errno values too.
Apparently there's another (semi?)bug exist somewhere here, since the
code tries to write to fd# -1, it probably should check if the connection
is open before. But this isn't important.
Peter Maydell [Tue, 7 Feb 2017 19:21:30 +0000 (19:21 +0000)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20170207-1' into staging
target-arm:
* new "unimplemented" device for stubbing out devices in a
system model so accesses can be logged
* stellaris: document the SoC memory map
* arm: create instruction syndromes for AArch32 data aborts
* arm: Correctly handle watchpoints for BE32 CPUs
* Fix Thumb-1 BE32 execution and disassembly
* arm: Add cfgend parameter for ARM CPU selection
* sd: sdhci: check data length during dma_memory_read
* aspeed: add a watchdog controller
* integratorcp: adding vmstate for save/restore
* remotes/pmaydell/tags/pull-target-arm-20170207-1:
stellaris: Use the 'unimplemented' device for parts we don't implement
hw/misc: New "unimplemented" sysbus device
stellaris: Document memory map and which SoC devices are unimplemented
target/arm: A32, T32: Create Instruction Syndromes for Data Aborts
target/arm: Abstract out pbit/wbit tests in ARM ldr/str decode
arm: Correctly handle watchpoints for BE32 CPUs
Fix Thumb-1 BE32 execution and disassembly.
target/arm: Add cfgend parameter for ARM CPU selection.
hw/arm/integratorcp: Support specifying features via -cpu
sd: sdhci: check data length during dma_memory_read
aspeed: add a watchdog controller
wdt: Add Aspeed watchdog device model
integratorcp: adding vmstate for save/restore
Peter Maydell [Tue, 7 Feb 2017 18:30:00 +0000 (18:30 +0000)]
hw/misc: New "unimplemented" sysbus device
Create a new "unimplemented" sysbus device, which simply accepts
all read and write accesses, and implements them as read-as-zero,
write-ignored, with logging of the access as LOG_UNIMP.
This is useful for stubbing out bits of an SoC or board model
which haven't been written yet.
Peter Maydell [Tue, 7 Feb 2017 18:30:00 +0000 (18:30 +0000)]
target/arm: A32, T32: Create Instruction Syndromes for Data Aborts
Add support for generating the ISS (Instruction Specific Syndrome)
for Data Abort exceptions taken from AArch32. These syndromes are
used by hypervisors for example to trap and emulate memory accesses.
This is the equivalent for AArch32 guests of the work done for AArch64
guests in commit aaa1f954d4cab243.
Peter Maydell [Tue, 7 Feb 2017 18:29:59 +0000 (18:29 +0000)]
target/arm: Abstract out pbit/wbit tests in ARM ldr/str decode
In the ARM ldr/str decode path, rather than directly testing
"insn & (1 << 21)" and "insn & (1 << 24)", abstract these
bits out into wbit and pbit local flags. (We will want to
do more tests against them to determine whether we need to
provide syndrome information.)
Julian Brown [Tue, 7 Feb 2017 18:29:59 +0000 (18:29 +0000)]
arm: Correctly handle watchpoints for BE32 CPUs
In BE32 mode, sub-word size watchpoints can fail to trigger because the
address of the access is adjusted in the opcode helpers before being
compared with the watchpoint registers. This patch reverses the address
adjustment before performing the comparison with the help of a new CPUClass
hook.
This version of the patch augments and tidies up comments a little.
Julian Brown [Tue, 7 Feb 2017 18:29:59 +0000 (18:29 +0000)]
Fix Thumb-1 BE32 execution and disassembly.
Thumb-1 code has some issues in BE32 mode (as currently implemented). In
short, since bytes are swapped within words at load time for BE32
executables, this also swaps pairs of adjacent Thumb-1 instructions.
This patch un-swaps those pairs of instructions again, both for execution,
and for disassembly. (The previous version of the patch always read four
bytes in arm_read_memory_func and then extracted the proper two bytes,
in a probably misguided attempt to match the behaviour of actual hardware
as described by e.g. the ARM9TDMI TRM, section 3.3 "Endian effects for
instruction fetches". It's less complicated to just read the correct
two bytes though.)
Julian Brown [Tue, 7 Feb 2017 18:29:59 +0000 (18:29 +0000)]
target/arm: Add cfgend parameter for ARM CPU selection.
Add a new "cfgend" property which selects whether the CPU resets into
big-endian mode or not. This setting affects whether we reset with
SCTLR_B (ARMv6 and earlier) or SCTLR_EE (ARMv7 and later) set.
Signed-off-by: Julian Brown <[email protected]>
Message-id: 11420d1c49636c1790e60578ee996e51f0f0b835.1484929304[email protected]
[PMM: use error_report_err() rather than error_report();
move the integratorcp changes to their own patch;
drop an unnecessary extra #include;
rephrase commit message accordingly;
move setting of reset_sctlr above registration of cpregs
so it actually has an effect] Reviewed-by: Peter Maydell <[email protected]> Signed-off-by: Peter Maydell <[email protected]>
Julian Brown [Tue, 7 Feb 2017 18:29:59 +0000 (18:29 +0000)]
hw/arm/integratorcp: Support specifying features via -cpu
Since the integratorcp board creates the CPU object directly
rather than via cpu_arm_init(), we have to call the CPU
class parse_features() method ourselves if we want to
support the user passing features via the -cpu command
line argument as well as just the cpu name. Do so.
sd: sdhci: check data length during dma_memory_read
While doing multi block SDMA transfer in routine
'sdhci_sdma_transfer_multi_blocks', the 's->fifo_buffer' starting
index 'begin' and data length 's->data_count' could end up to be same.
This could lead to an OOB access issue. Correct transfer data length
to avoid it.
The Aspeed SoC includes a set of watchdog timers using 32-bit
decrement counters, which can be based either on the APB clock or
a 1 MHz clock.
The watchdog timer is designed to prevent system deadlock and, in
general, it should be restarted before timeout. When a timeout occurs,
different types of signals can be generated, ARM reset, SOC reset,
System reset, CPU Interrupt, external signal or boot from alternate
block. The current model only performs the system reset function as
this is used by U-Boot and Linux.
Signed-off-by: Joel Stanley <[email protected]>
Message-id: 1485452251[email protected]
[clg: - fixed compile breakage
- fixed io region size
- added watchdog_perform_action() on timer expiry
- wrote a commit log
- merged fixes from Andrew Jeffery to scale the reload value ] Signed-off-by: Cédric Le Goater <[email protected]> Reviewed-by: Peter Maydell <[email protected]> Signed-off-by: Peter Maydell <[email protected]>
# gpg: Signature made Mon 06 Feb 2017 16:13:26 GMT
# gpg: using RSA key 0xF487EF185872D723
# gpg: Good signature from "Juan Quintela <[email protected]>"
# gpg: aka "Juan Quintela <[email protected]>"
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03 4B82 F487 EF18 5872 D723
* remotes/juanquintela/tags/migration/20170206:
postcopy: Recover block devices on early failure
Postcopy: Reset state to avoid cleanup assert
vmstate registration: check return values
migration: Check for ID length
vmstate_register_with_alias_id: Take an Error **
migration: create Migration Incoming State at init time
make: move top level dir to end of include search path
The dir $(BUILD_DIR)/$(@D) was added to the include
path. This would sometimes point to a non-existant
directory, if the sub-dir in question did not contain
any target-independant files (eg tcg/). To deal with
this the rules.mak attempted to create the directory.
While this was succesful, it also caused accidental
creation of files in the parent of the build dir.
e.g. when building common source files into target
specific output files.
Rather than trying to workaround this, just revert
the code that attempted to mkdir the missing include
directories. Instead just turn off the compiler warning
in question as the missing dir is expected & harmless
in general.
NB: you can clean up a build directory parent that has
been filled with empty directories by commit ba78db44f653
using this GNU find command in that parent directory:
find audio backends block chardev crypto disas fsdev hw io linux-user \
migration nbd net qapi qom replay slirp target ui util \
-type d -empty -delete
Signed-off-by: Daniel P. Berrange <[email protected]> Tested-by: Alberto Garcia <[email protected]>
[PMM: added note about how to clean up a polluted directory] Signed-off-by: Peter Maydell <[email protected]>
Laurent Vivier [Thu, 26 Jan 2017 08:04:48 +0000 (09:04 +0100)]
linux-user: fix "apt-get update" on linux-user hppa
apt-get was hanging on linux-user hppa.
strace has shown the netlink data stream was not correctly byte swapped.
It appears the fd translator function is unregistered just after it
has been registered, so the translator function is not called.
This patch removes the fd_trans_unregister() after the do_socket()
in the TARGET_NR_socket case.
This fd_trans_unregister() was added by commit e36800c linux-user: add signalfd/signalfd4 syscalls
when do_socket() was not registering any fd translator.
And as now it is, we must remove this fd_trans_unregister() to keep them.
An early postcopy failure can be recovered from as long as we know
we haven't sent the command to run the destination.
We have to undo the bdrv_inactivate_all by calling
bdrv_invalidate_cache_all
Note that I'm not using ms->block_inactive because once we've
sent the postcopy package we dont want anything else to try
and recover the block storage on the source; the destination
might have started writing to it.
On a destination host with no userfault support an incoming
postcopy would cause the state to enter ADVISE before
it realised there was no support, and because it was in ADVISE
state it would perform a cleanup at the end. Since there
was no support the cleanup function should be unreachable,
but ends up being called and asserting.
Reset the state when we realise we have no support, thus the
cleanup doesn't happen.
Check qdev's call to vmstate_register_with_alias_id; that gets
most of the common uses; there's hundreds of calls via vmstate_register
which could get fixed over time.
The qdev id of a device can be huge if it's on the end of a chain
of bridges; in reality such chains shouldn't occur but they can
be made to by chaining PCIe bridges together.
The migration format has a number of 256 character long format
limits; check we don't hit them (we already use pstrcat/cpy but
that just protects us from buffer overruns, we fairly quickly
hit an assert).
Gerd Hoffmann [Fri, 3 Feb 2017 06:51:45 +0000 (07:51 +0100)]
xhci: fix event queue IRQ handling
The qemu xhci emulation doesn't handle the ERDP_EHB flag correctly.
When the host adapter queues a new event the ERDP_EHB flag is set. The
flag is cleared (via w1c) by the guest when it updates the ERDP (event
ring dequeue pointer) register to notify the host adapter which events
it has fetched.
An IRQ must be raised in case the ERDP_EHB flag flips from clear to set.
If the flag is set already (which implies there are events queued up
which are not yet processed by the guest) xhci must *not* raise a IRQ.
Qemu got that wrong and raised an IRQ on every event, thereby generating
spurious interrupts in case we've queued events faster than the guest
processed them. This patch fixes that.
With that change in place we also have to check ERDP updates, to see
whenever the guest has fetched all queued events. In case there are
still pending events set ERDP_EHB and raise an IRQ again, to make sure
the events don't linger unseen forever.
The linux kernel driver and the microsoft windows driver (shipped with
win8+) can deal with the spurious interrupts without problems. The
renesas windows driver (v2.1.39) which can be used on older windows
versions is quite upset though. It does spurious ERDP updates now and
then (not every time, seems we must hit a race window for this to
happen), which in turn makes the qemu xhci emulation think the event
ring is full. Things go south from here ...
Peter Maydell [Mon, 6 Feb 2017 10:29:11 +0000 (10:29 +0000)]
Merge remote-tracking branch 'remotes/dgibson/tags/isa-cleanup-20170206' into staging
Allow ISA to be disabled on some platforms (v3)
This makes some cleanups that are a start on allowing ISA to be
compiled out for platforms which don't use it.
I posted this series last November, and it collected a number of R-bs
and no apparent objections. So, I've now rebased it (trivially) and
am sending a pull request in the hopes of merge. A lot of the pieces
here don't have a clear maintainer, so I'm sending it directly to
Peter.
Notes:
* Patch 3/3 triggers a style warning, but that's just because I'm
moving a C++ // comment verbatim from one file to another
Changes since v2:
* Trivial rebase
Changes since v1:
* Fixed some silly compile errors in 3/3 exposed by some
changes in other headers
* remotes/dgibson/tags/isa-cleanup-20170206:
Split ISA and sysbus versions of m48t59 device
Allow ISA bus to be configured out
Split serial-isa into its own config option
CCID device emulator uses Application Protocol Data Units(APDU)
to exchange command and responses to and from the host.
The length in these units couldn't be greater than 65536. Add
check to ensure the same. It'd also avoid potential integer
overflow in emulated_apdu_from_guest.
Gerd Hoffmann [Thu, 2 Feb 2017 11:36:12 +0000 (12:36 +0100)]
xhci: guard xhci_kick_epctx against recursive calls
Track xhci_kick_epctx processing being active in a variable. Check the
variable before calling xhci_kick_epctx from xhci_kick_ep. Add an
assert to make sure we don't call recursively into xhci_kick_epctx.
Gerd Hoffmann [Mon, 30 Jan 2017 15:36:46 +0000 (16:36 +0100)]
xhci: don't kick in xhci_submit and xhci_fire_ctl_transfer
xhci_submit and xhci_fire_ctl_transfer are is called from
xhci_kick_epctx processing loop only, so there is no need to call
xhci_kick_epctx make sure processing continues. Also eecursive calls
into xhci_kick_epctx can cause trouble.
hw/usb/dev-hid: Improve guest compatibility of usb-tablet
1. Set bInterfaceProtocol to 0x00 for usb-tablet. This should be
non-zero for boot protocol devices only, which the usb-tablet is not.
2. Set the usb-tablet's usage to "mouse" in the report descriptor.
The boot protocol of 0x02 specifically confused OS X/macOS' HID driver
stack, causing it to generate additional bogus HID events with relative
motion in addition to the tablet's absolute coordinate events.
Absolute pointing devices with HID Report Descriptor usage of 0x01
(pointing) are treated by the macOS HID driver as analog sticks, and
absolute coordinates are not directly translated to absolute mouse
cursor positions. Changing it to 0x02 (mouse) fixes the problem, and
does not have any adverse effect in other operating systems and
windowing systems. (VMWare does the same thing.)
David Gibson [Tue, 8 Nov 2016 06:00:35 +0000 (17:00 +1100)]
Split ISA and sysbus versions of m48t59 device
The m48t59 device supports both ISA and direct sysbus attached versions of
the device in the one .c file. This can be awkward for some embedded
machine types which need the sysbus M48T59, but don't want to pull in the
ISA bus code and its other dependencies.
Therefore, this patch splits out the code for the ISA attached M48T59 into
its own C file. It will be built when both CONFIG_M48T59 and
CONFIG_ISA_BUS are enabled.
David Gibson [Wed, 9 Nov 2016 02:31:22 +0000 (13:31 +1100)]
Allow ISA bus to be configured out
Currently, the code to handle the legacy ISA bus is always included in
qemu. However there are lots of platforms that don't include ISA legacy
devies, and quite a few that have never used ISA legacy devices at all.
This patch allows the ISA bus code to be disabled in the configuration for
platforms where it doesn't make sense.
For now, the default configs are adjusted to include ISA on all platforms
including PCI: anything with PCI can at least in principle add an i82378
PCI->ISA bridge. Also, CONFIG_IDE_CORE which is already in pci.mak
requires ISA support.
We also explicitly enable ISA on some other non-PCI platforms which include
ISA devices: moxie, sparc and unicore32. We may want to pare this down in
future.
The platforms that will lose ISA by default are: cris, lm32, microblazeel,
microblaze, openrisc, s390x, tricore, xtensaeb, xtensa. As far as I can
tell none of these ever used ISA.
David Gibson [Mon, 8 Feb 2016 00:36:54 +0000 (10:36 +1000)]
Split serial-isa into its own config option
At present, the core device model code for 8250-like serial ports
(serial.c) and the code for serial ports attached to ISA-style legacy IO
(serial-isa.c) are both controlled by the CONFIG_SERIAL variable.
There are lots and lots of embedded platforms that have 8250-like serial
ports but have never had anything resembling ISA legacy IO. Therefore,
split serial-isa into its own CONFIG_SERIAL_ISA option so it can be
disabled for platforms where it's not appropriate.
For now, I enabled CONFIG_SERIAL_ISA in every default-config where
CONFIG_SERIAL is enabled, excepting microblaze, or32, and xtensa. As best
as I can tell, those platforms never used legacy ISA, and also don't
include PCI support (which would allow connection of a PCI->ISA bridge
and/or a southbridge including legacy ISA serial ports).
Stefan Hajnoczi [Thu, 26 Jan 2017 17:01:19 +0000 (17:01 +0000)]
iothread: enable AioContext polling by default
IOThread AioContexts are likely to consist only of event sources like
virtqueue ioeventfds and LinuxAIO completion eventfds that are pollable
from userspace (without system calls).
We recently merged the AioContext polling feature but didn't enable it
by default yet. I have gone back over the performance data on the
mailing list and picked a default polling value that gave good results.
Let's enable AioContext polling by default so users don't have another
switch they need to set manually. If performance regressions are found
we can still disable this for the QEMU 2.9 release.
Peter Maydell [Fri, 3 Feb 2017 12:31:40 +0000 (12:31 +0000)]
Merge remote-tracking branch 'remotes/sstabellini/tags/xen-20170202' into staging
Xen 2017/02/02
# gpg: Signature made Thu 02 Feb 2017 18:26:58 GMT
# gpg: using RSA key 0x894F8F4870E1AE90
# gpg: Good signature from "Stefano Stabellini <[email protected]>"
# gpg: aka "Stefano Stabellini <[email protected]>"
# Primary key fingerprint: D04E 33AB A51F 67BA 07D3 0AEA 894F 8F48 70E1 AE90
* remotes/sstabellini/tags/xen-20170202:
xen: use qdev_unplug() instead of g_free() in xen_pv_find_xendev()
MAINTAINERS: Update xen-devel mailing list address
xen-platform: add missing disk unplug option
xen-platform: add support for unplugging NVMe disks...
xen-platform: re-structure unplug_disks
Peter Maydell [Thu, 2 Feb 2017 18:48:06 +0000 (18:48 +0000)]
Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.9-20170202' into staging
ppc patch queue 2017-02-02
This obsoletes ppc-for-2.9-20170112, which had a MacOS build bug.
This is a long overdue ppc pull request for qemu-2.9. It's been a
long time coming due to some holidays and inconveniently timed
problems with testing. So, there's a lot in here:
* More POWER9 instruction implementations for TCG
* The simpler parts of my CPU compatibility mode cleanup
* This changes behaviour to prefer compatibility modes over
"raW" mode for new machine type versions
* New "40p" machine type which is essentially a modernized and
cleaned up "prep". The intention is that it will replace "prep"
once it has some more testing and polish.
* Add pseries-2.9 machine type
* Implement H_SIGNAL_SYS_RESET hypercall
* Consolidate the two alternate CPU init paths in pseries by
making it always go through CPU core objects to initialize CPU
* A number of bugfixes and cleanups
* Stop the guest timebase when the guest is stopped under KVM.
This makes the guest system clock also stop when paused, which
matches the x86 behaviour.
* Some preliminary cleanups leading towards implementation of the
POWER9 MMU.
There are also some changes not strictly related to ppc code, but for
its benefit:
* Limit the pxi-expander-bridge (PXB) device to x86 guests only
(it's essentially a hack to work around historical x86
limitations)
* Some additions to the 128-bit math in host_utils, necessary for
some of the new instructions.
* Revise a number of qtests and enable them for ppc
* remotes/dgibson/tags/ppc-for-2.9-20170202: (107 commits)
hw/ppc/pnv: Use error_report instead of hw_error if a ROM file can't be found
ppc/kvm: Handle the "family" CPU via alias instead of registering new types
target/ppc/mmu_hash64: Fix incorrect shift value in amr calculation
target/ppc/mmu_hash64: Fix printing unsigned as signed int
tcg/POWER9: NOOP the cp_abort instruction
target/ppc/debug: Print LPCR register value if register exists
target-ppc: Add xststdc[sp, dp, qp] instructions
target-ppc: Add xvtstdc[sp,dp] instructions
target-ppc: Add MMU model check for booke machines
ppc: switch to constants within BUILD_BUG_ON
target/ppc/cpu-models: Fix/remove bad CPU aliases
target/ppc: Remove unused POWERPC_FAMILY(POWER)
spapr: clock should count only if vm is running
ppc: Remove unused function cpu_ppc601_rtc_init()
target/ppc: Add pcr_supported to POWER9 cpu class definition
powerpc/cpu-models: rename ISAv3.00 logical PVR definition
target-ppc: Add xvcv[hpsp, sphp] instructions
target-ppc: Add xsmulqp instruction
target-ppc: Add xsdivqp instruction
target-ppc: Add xscvsdqp and xscvudqp instructions
...
Peter Maydell [Thu, 2 Feb 2017 16:08:28 +0000 (16:08 +0000)]
Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging
# gpg: Signature made Wed 01 Feb 2017 13:44:32 GMT
# gpg: using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <[email protected]>"
# gpg: aka "Stefan Hajnoczi <[email protected]>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* remotes/stefanha/tags/tracing-pull-request:
trace: clean up trace-events files
qapi: add missing trace_visit_type_enum() call
trace: improve error reporting when parsing simpletrace header
trace: update docs to reflect new code generation approach
trace: switch to modular code generation for sub-directories
trace: move setting of group name into Makefiles
trace: move hw/i386/xen events to correct subdir
trace: move hw/xen events to correct subdir
trace: move hw/block/dataplane events to correct subdir
make: move top level dir to end of include search path
Peter Maydell [Thu, 2 Feb 2017 15:14:24 +0000 (15:14 +0000)]
Merge remote-tracking branch 'remotes/borntraeger/tags/s390x-20170201' into staging
s390x fixes
- build error with old gcc versions
- race between cmma reset and rom/loader resets
- linux-user vs. cpu model
# gpg: Signature made Wed 01 Feb 2017 08:24:47 GMT
# gpg: using RSA key 0x117BBC80B5A61C7C
# gpg: Good signature from "Christian Borntraeger (IBM) <[email protected]>"
# Primary key fingerprint: F922 9381 A334 08F9 DBAB FBCA 117B BC80 B5A6 1C7C
* remotes/borntraeger/tags/s390x-20170201:
target/s390x: use "qemu" cpu model in user mode
s390x/kvm: fix small race reboot vs. cmma
s390-pci: fix compilation on older GCC versions
Li Qiang [Wed, 1 Feb 2017 08:35:01 +0000 (09:35 +0100)]
cirrus: fix oob access issue (CVE-2017-2615)
When doing bitblt copy in backward mode, we should minus the
blt width first just like the adding in the forward mode. This
can avoid the oob access of the front of vga's vram.
Signed-off-by: Li Qiang <[email protected]>
{ kraxel: with backward blits (negative pitch) addr is the topmost
address, so check it as-is against vram size ]
Peter Maydell [Thu, 2 Feb 2017 11:03:37 +0000 (11:03 +0000)]
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
virtio, vhost, pci: fixes, features
generic pci root port support
disable shpc by default
safer version of ARRAY_SIZE and QEMU_BUILD_BUG_ON
fixes and cleanups all over the place
Signed-off-by: Michael S. Tsirkin <[email protected]>
# gpg: Signature made Wed 01 Feb 2017 01:38:34 GMT
# gpg: using RSA key 0x281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <[email protected]>"
# gpg: aka "Michael S. Tsirkin <[email protected]>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream: (22 commits)
arm: add trailing ; after MISMATCH_CHECK
arm: better stub version for MISMATCH_CHECK
hw/pci: disable pci-bridge's shpc by default
vhost-user: delete chardev on cleanup
vhost: skip ROM sections
virtio: make virtio_should_notify static
pci: Convert msix_init() to Error and fix callers
hcd-xhci: check & correct param before using it
msix: Follow CODING_STYLE
hw/i386: check if nvdimm is enabled before plugging
hw/pcie: Introduce Generic PCI Express Root Port
hw/ioh3420: derive from PCI Express Root Port base class
hw/pcie: Introduce a base class for PCI Express Root Ports
intel_iommu: fix and simplify size calculation in process_device_iotlb_desc()
pci: mark ROMs read-only
ARRAY_SIZE: check that argument is an array
compiler: expression version of QEMU_BUILD_BUG_ON
compiler: rework BUG_ON using a struct
QEMU_BUILD_BUG_ON: use __COUNTER__
ppc: switch to constants within BUILD_BUG_ON
...
Peter Maydell [Thu, 2 Feb 2017 09:50:21 +0000 (09:50 +0000)]
Merge remote-tracking branch 'remotes/elmarco/tags/chr-split-pull-request' into staging
# gpg: Signature made Tue 31 Jan 2017 19:32:40 GMT
# gpg: using RSA key 0xDAE8E10975969CE5
# gpg: Good signature from "Marc-André Lureau <[email protected]>"
# gpg: aka "Marc-André Lureau <[email protected]>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5
* remotes/elmarco/tags/chr-split-pull-request: (41 commits)
char: headers clean-up
char: move parallel chardev in its own file
char: move serial chardev to its own file
char: move pty chardev in its own file
char: move pipe chardev in its own file
char: move console in its own file
char: move stdio in its own file
char: move file chardev in its own file
char: move udp chardev in its own file
char: move socket chardev to its own file
char: move win-stdio into its own file
char: move win chardev base class in its own file
char: move fd chardev in its own file
char: move QIOChannel-related stuff to char-io.h
char: remove unused READ_RETRIES
char: rename and move to header CHR_READ_BUF_LEN
char: move ringbuf/memory to its own file
char: move mux to its own file
char: move null chardev to its own file
char: make null_chr_write() the default method
...
Thomas Huth [Wed, 1 Feb 2017 11:03:10 +0000 (12:03 +0100)]
hw/ppc/pnv: Use error_report instead of hw_error if a ROM file can't be found
hw_error() is for CPU related errors only (it dumps the CPU registers
and calls abort()!), so using error_report() is the better choice
of reporting an error in case we simply did not find a file.
Thomas Huth [Tue, 31 Jan 2017 13:11:58 +0000 (14:11 +0100)]
ppc/kvm: Handle the "family" CPU via alias instead of registering new types
When running with KVM on POWER, we are registering a "family" CPU
type for the host CPU that we are running on. For example, on all
POWER8-compatible hosts, we register a "POWER8" CPU type, so that
you can always start QEMU with "-cpu POWER8" there, without the
need to know whether you are running on a POWER8, POWER8E or POWER8NVL
host machine.
However, we also have a "POWER8" CPU alias in the ppc_cpu_aliases list
(that is mainly useful for TCG). This leads to two cosmetical drawbacks:
If the user runs QEMU with "-cpu ?", we always claim that POWER8 is an
"alias for POWER8_v2.0" - which is simply not true when running with
KVM on POWER. And when using the 'query-cpu-definitions' QMP call,
there are currently two entries for "POWER8", one for the alias, and
one for the additional registered type.
To solve the two problems, we should rather update the "family" alias
instead of registering a new types. We then only have one "POWER8"
CPU definition around, an alias, which also points to the right
destination.
target/ppc/mmu_hash64: Fix incorrect shift value in amr calculation
We are calculating the authority mask register key value wrong.
The pte entry contains the key value with the two upper bits and the three
lower bits stored separately. We should use these two portions to get a 5
bit value, not or them together which will only give us a 3 bit value.
The cp_abort instruction is used to remove the state of an in progress
copy paste sequence. POWER9 compilers add this in various places, such
as context switches which causes illegal instruction signals since we
don't yet implement this instruction.
Given there is no implementation of the copy paste facility and that we
don't claim to support it, we can just noop this instruction.
xststdcsp: VSX Scalar Test Data Class Single-Precision
xststdcdp: VSX Scalar Test Data Class Double-Precision
xststdcqp: VSX Scalar Test Data Class Quad-Precision
Valentin Plotkin [Thu, 26 Jan 2017 10:15:59 +0000 (10:15 +0000)]
target-ppc: Add MMU model check for booke machines
Machines bamboo, e500 and virtex-ml507 assume a certain MMU model,
otherwise resulting in unpredictable behavior. Add apropriate checks
into *_init functions.
Gerd Hoffmann [Wed, 25 Jan 2017 10:09:56 +0000 (11:09 +0100)]
cirrus: fix blit address mask handling
Apply the cirrus_addr_mask to cirrus_blt_dstaddr and cirrus_blt_srcaddr
right after assigning them, in cirrus_bitblt_start(), instead of having
this all over the place in the cirrus code, and missing a few places.
cirrus: allow zero source pitch in pattern fill rops
The rops used by cirrus_bitblt_common_patterncopy only use
the destination pitch, so the source pitch shoul allowed to
be zero and the blit with used for the range check around the
source address.
cirrus: handle negative pitch in cirrus_invalidate_region()
cirrus_invalidate_region() calls memory_region_set_dirty()
on a per-line basis, always ranging from off_begin to
off_begin+bytesperline. With a negative pitch off_begin
marks the top most used address and thus we need to do an
initial shift backwards by a line for negative pitches of
backward blits, otherwise the first iteration covers the
line going from the start offset forwards instead of
backwards.
Additionally since the start address is inclusive, if we
shift by a full `bytesperline` we move to the first address
*not* included in the blit, so we only shift by one less
than bytesperline.
Right now we reset all devices before we reset the cmma states. This
can result in the host kernel discarding guest pages that were
previously in the unused state but already contain a bios or a -kernel
file before the cmma reset has finished. This race results in random
guest crashes or hangs during very early reboot.
Paolo Bonzini [Fri, 27 Jan 2017 13:20:52 +0000 (14:20 +0100)]
s390-pci: fix compilation on older GCC versions
S390PCIBusDevice is typedef'ed earlier in the file, before the hunks
that this patch modifies. The double typedef causes old versions of
GCC to complain.
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