Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
when using signature for table ID, we forgot to byte-swap it.
signatures are really ASCII strings, let's treat them as such.
While at it, get rid of most of _SIGNATURE macros.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Building on the previous patch, raise the maximal count of processor
objects / NTFY branches / CPON elements from 255 to 256. This allows the
VCPU with APIC ID 0xFF to be hotplugged.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
commit 9bcc80cd71
i386/acpi-build: allow more than 255 elements in CPON
Replaces 0x1 with a smaller One constant.
rebuild expected SSDT.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The build_ssdt() function builds a number of AML objects that are related
to CPU hotplug, and whose IDs form a contiguous sequence of APIC IDs.
(APIC IDs are in fact discontiguous, but this is the traditional
interface: build a contiguous sequence from zero up that covers all
possible APIC IDs.) These objects are:
- a Processor() object for each VCPU,
- a NTFY method, with one branch for each VCPU,
- a CPON package with one element (hotplug status byte) for each VCPU.
The build_ssdt() function currently limits the *count* of processor
objects, and NTFY branches, and CPON elements, in 0xFF (see the assignment
to "acpi_cpus"). This allows for an inclusive APIC ID range of [0..254].
This is incorrect, because the highest APIC ID that we otherwise allow a
VCPU to take is 255.
In order to extend the maximum count to 256, and the traversed APIC ID
range correspondingly to [0..255]:
- the Processor() objects need no change,
- the NTFY method also needs no change,
- the CPON package must be updated, because it is defined with a
DefPackage, and the number of elements in such a package can be at most
255. We pick a DefVarPackage instead.
We replace the Op byte, and the encoding of the number of elements.
Compare:
DefPackage := PackageOp PkgLength NumElements PackageElementList
DefVarPackage := VarPackageOp PkgLength VarNumElements PackageElementList
PackageOp := 0x12
VarPackageOp := 0x13
NumElements := ByteData
VarNumElements := TermArg => Integer
The build_append_int() function implements precisely the following TermArg
encodings (a subset of what the ACPI spec describes):
TermArg := DataObject
DataObject := ComputationalData
ComputationalData := ConstObj | ByteConst | WordConst | DWordConst
directly encoded in the function, with build_append_byte():
ConstObj := ZeroOp | OneOp
ZeroOp := 0x00
OneOp := 0x01
call to build_append_value(..., 1):
ByteConst := BytePrefix ByteData
BytePrefix := 0x0A
ByteData := 0x00 - 0xFF
call to build_append_value(..., 2):
WordConst := WordPrefix WordData
WordPrefix := 0x0B
WordData := ByteData[0:7] ByteData[8:15]
call to build_append_value(..., 4):
DWordConst := DWordPrefix DWordData
DWordPrefix := 0x0C
DWordData := WordData[0:15] WordData[16:31]
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This changes the PC initialization code to reject max_cpus if it results
in an APIC ID that's too large, instead of aborting or erroring out when
it is already too late.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
MAX_CPUMASK_BITS is a limit for max_cpus and CPU indexes, not for APIC
IDs.
ACPI_CPU_HOTPLUG_ID_LIMIT is the right macro for the limit on APIC IDs
on the ACPI and CPU hotplug code.
There are no functional changes introduced by this patch, as
MAX_CPUMASK_BITS + 1 == 255 + 1 == 256 == ACPI_CPU_HOTPLUG_ID_LIMIT.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
AcpiCpuHotplug_add() can't handle vCPU arch IDs larger than
ACPI_CPU_HOTPLUG_ID_LIMIT. Instead of corrupting memory in case the vCPU
ID is too large, use g_assert() to ensure we are not over the limit.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The ACPI CPU hotplug code requires APIC IDs to be smaller than
ACPI_CPU_HOTPLUG_ID_LIMIT, so enforce the limit before trying to hotplug
a new vCPU, returning an error instead of crashing.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The new macro will be helpful to allow us to detect too large SMP limits
before it is too late.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
casting an unaligned address to e.g.
uint32_t can trigger undefined behaviour in C.
Replace cast + assignment with memcpy.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
./configure --help
make
will try to re-run configure with --help
which isn't what was intended.
The reason is that config.status was written
even on configure error.
Defer writing config.status until configure
has completed successfully.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Since
commit 04920fc0fa
loader: store FW CFG ROM files in RAM
RAM MRs including ROM files in FW CFGs are created
and named using the file basename.
This becomes problematic if these names are
supplied by user, since the basename might not
be unique.
There are two cases we care about:
- option-rom flag.
- option ROM for devices. This triggers e.g. when
using rombar=0.
At the moment we get an assert. E.g
qemu -option-rom /usr/share/ipxe/8086100e.rom -option-rom
/usr/share/ipxe.efi/8086100e.rom
RAMBlock "/rom@genroms/8086100e.rom" already registered, abort!
This is a regression from 1.6.
For now let's keep it simple and just avoid creating the
MRs in case of option ROMs.
when using 1.7 machine types, enable
option ROMs in RAM to match that version.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
we put copy of ROMs in MR for migration.
but the name rom_in_ram makes one think we
load it in guest RAM.
Rename has_mr to make intent clearer.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Both QEMU and KVM have already accumulated a significant number of
optimizations based on the hard-coded assumption that ioapic polarity
will always use the ActiveHigh convention, where the logical and
physical states of level-triggered irq lines always match (i.e.,
active(asserted) == high == 1, inactive == low == 0). QEMU guests
are expected to follow directions given via ACPI and configure the
ioapic with polarity 0 (ActiveHigh). However, even when misbehaving
guests (e.g. OS X <= 10.9) set the ioapic polarity to 1 (ActiveLow),
QEMU will still use the ActiveHigh signaling convention when
interfacing with the emulated ioapic.
This patch modifies the emulated ioapic to completely ignore polarity
as set by the guest OS, enabling misbehaving guests to work alongside
those which comply with the ActiveHigh polarity specified by QEMU's
ACPI tables.
Signed-off-by: Gabriel L. Somlo <somlo@cmu.edu>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Bit 7 of Input Port is the keyboard inhibit switch.
0 means keyboard inhibited, while 1 means keyboard enabled.
Incidentaly, this also fixes an error encountered while booting
an Award BIOS: "Keyboard is locked out - Unlock the key".
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
In write-only mode, writes are forwarded to RAM, while reads should not be
handled (ie should return 0xff).
Assume that in this mode, no read access is ever done, as they shouldn't
give any sensible result.
So, in write-only mode, alias PAM region to RAM, instead of PCI memory
(which can even be mapped to some device!)
This fixes Award BIOS, which use this mode to shadow system BIOS and video BIOS.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
If the expected (offline) acpi tables loaded correctly,
it is safe to assume the iasl installation is OK and
issue an error if the actual tables failed to load.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Updated the error message while at it.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Gleb's address seems to be out of date. Since it stayed like that for a
while now, I'm guessing he's no longer interested in getting mail.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
If enabled, set the thread name at creation (on GNU systems with
pthread_set_np)
Fix up all the callers with a thread name
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Add flag storage to qemu-thread-* to store the namethreads flag
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
PCIE is causing asserts each time a multifunction device is added
on command line (coldplug).
This is caused by
commit a66e657e18
pci/pcie: convert PCIE hotplug to use hotplug-handler API
QEMU abort is caused by misplaced assertion, which should
be checked only when device is hotplugged.
Reference to regression report:
http://www.mail-archive.com/qemu-devel@nongnu.org/msg216226.html
Fixes: a66e657e18
Reported-By: Nigel Kukard <nkukard+qemu@lbsd.net>
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>
Windows XP shows COM2 port as non functional in
"Device Manager" although no COM2 port backing device
is present in QEMU.
This regression is really due to
3bb28b7208b349e7a1b326e3c6ef9efac1d462bf?
memory: Provide separate handling of unassigned io ports accesses
That is caused by the fact that QEMU reports to
OSPM that device is present by setting 5th bit in
PII4XPM.pci_conf[0x67] register when COM2 doesn't
exist.
It happens due to memory_region_present(io_as, 0x2f8)
returning false positive since 0x2f8 address eventually
translates into catchall io_as address space.
Fix memory_region_present(parent, addr) by returning
true only if addr maps into a MemoryRegion within
parent (excluding parent itself), to match its
doc comment.
While at it fix copy/paste error in
memory_region_present() doc comment.
Note: this is a temporary hack: we really need better handling for
unassigned regions, we should avoid fallback regions since they are bad
for performance (breaking radix tree assumption that the data structure
is sparsely populated); for memory we need to fix this to implement PCI
master abort properly, anyway.
Cc: Jan Kiszka <jan.kiszka@siemens.com>
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>
peer_{de,at}tach were called from inside assert().
We don't support building without NDEBUG but it's not tidy.
Rearrange to attach peer outside assert calls.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
As reported in
http://article.gmane.org/gmane.comp.emulators.qemu/253987
Mac OSX actually requires describing all occupied slots
in ACPI - even if hotplug isn't enabled.
I didn't expect this so I dropped description of all
non hotpluggable slots from ACPI.
As a result: before
commit 99fd437dee (enable
hotplug for pci bridges), PCI cards show up in the "device tree" of OS X
(System Information). E.g., on MountainLion users have:
Hardware -> PCI Cards:
Card Type Driver Installed Slot
*ethernet Ethernet Controller Yes PCI Slot 2
pci8086,2934 USB UHC Yes PCI Slot 29
ethernet:
Type: Ethernet Controller
Driver Installed: Yes
MSI: No
Bus: PCI
Slot PCI Slot 2
Vendor ID: 0x8086
Device ID: 0x100e
Subsystem Vendor ID: 0x1af4
Subsystem ID: 0x1100
Revision ID: 0x0003
Hardware -> Ethernet Cards
ethernet:
Type: Ethernet Controller
Bus: PCI
Slot PCI Slot 2
Vendor ID: 0x8086
Device ID: 0x100e
Subsystem Vendor ID: 0x1af4
Subsystem ID: 0x1100
Revision ID: 0x0003
BSD name: en0
Kext name: AppleIntel8254XEthernet.kext
Location: /System/Library/Extensions/...
Version: 3.1.1b1
After commit 99fd437dee, users get:
Hardware -> PCI Cards:
This computer doesn't contain any PCI cards. If you installed PCI
cards, make sure they're properly installed.
Hardware -> Ethernet Cards
ethernet:
Type: Ethernet Controller
Bus: PCI
Vendor ID: 0x8086
Device ID: 0x100e
Subsystem Vendor ID: 0x1af4
Subsystem ID: 0x1100
Revision ID: 0x0003
BSD name: en0
Kext name: AppleIntel8254XEthernet.kext
Location: /System/Library/Extensions/...
Version: 3.1.1b1
Ethernet still works, but it's not showing up on the PCI bus, and it
no longer thinks it's plugged in to slot #2, as it used to before the
change.
To fix, append description for all occupied non hotpluggable PCI slots.
One need to be careful when doing this: VGA devices
are now described in SSDT, so we need to drop description from DSDT.
And ISA devices are used in DSDT so drop them from SSDT.
Reported-by: Gabriel L. Somlo <gsomlo@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Also update generated dsdt and pcihp hex dump files.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* remotes/kvaneesh/for-upstream:
hw/9pfs: Include virtio-9p-device.o in build
hw/9pfs: use g_strdup_printf() instead of PATH_MAX limitation
hw/9pfs/virtio-9p-local.c: use snprintf() instead of sprintf()
hw/9pfs/virtio-9p-local.c: move v9fs_string_free() to below "err_out:"
fsdev: Fix overrun after readlink() fills buffer completely
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=6sTe
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block patches
# gpg: Signature made Fri 07 Mar 2014 13:30:04 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream:
block: qemu-iotests 085 - live snapshots tests
hw/ide/ahci.h: Avoid shifting left into sign bit
block: Fix error path segfault in bdrv_open()
qemu-iotests: Test a few blockdev-add error cases
blockdev: Fix NULL pointer dereference in blockdev-add
blockdev: Fail blockdev-add with encrypted images
block/raw-win32: Strip "file:" prefix on creation
block/raw-win32: Implement bdrv_parse_filename()
block/raw-posix: Strip "file:" prefix on creation
block/raw-posix: Implement bdrv_parse_filename()
block: Keep "filename" option after parsing
block: mirror - remove code cruft that has no function
block: make bdrv_swap rebuild the bs graph node list field.
block: Fix bs->request_alignment assertion for bs->sg=1
iscsi: Use bs->sg for everything else than disks
qemu-iotests: Test progress output for conversion
qemu-img convert: Fix progress output
gluster: Remove unused defines and header include
gluster: Change licence to GPLv2+
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Pass all the relevant sub-directory make variables.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20140120112153.5685.30949.stgit@fimbulvetr.bsc.es
In commit 5643706a09 (console: add head
to index to qemu consoles.) graphic_console_init() was extended to take
an additional argument, but xenfb was not updated accordingly. Fix it.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Don Slutz <dslutz@verizon.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1394228528-31625-1-git-send-email-afaerber@suse.de
This improves performance for those guests that issue the new
CCW_CMD_SET_IND_ADAPTER channel command.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=AyDR
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/cohuck/tags/virtio-ccw-20140305' into staging
One patch introducing support for adapter interrupts in virtio-ccw.
This improves performance for those guests that issue the new
CCW_CMD_SET_IND_ADAPTER channel command.
# gpg: Signature made Wed 05 Mar 2014 08:48:18 GMT using RSA key ID C6F02FAF
# gpg: Can't check signature: public key not found
* remotes/cohuck/tags/virtio-ccw-20140305:
s390x/virtio-ccw: Adapter interrupt support.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This adds tests for live snapshots, both through the single
snapshot command, and the transaction group snapshot command.
The snapshots are done through the QMP interface, using the
following commands for snapshots:
Single snapshot:
{ 'execute': 'blockdev-snapshot-sync', 'arguments':
{ 'device': 'virtio0', 'snapshot-file':'...',
'format': 'qcow2' } }"
Group snapshot:
{ 'execute': 'transaction', 'arguments':
{'actions': [
{ 'type': 'blockdev-snapshot-sync', 'data' :
{ 'device': 'virtio0', 'snapshot-file': '...' } },
{ 'type': 'blockdev-snapshot-sync', 'data' :
{ 'device': 'virtio1', 'snapshot-file': '...' } } ]
} }
Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Add 'U' suffixes to avoid undefined behaviour shifting left into
the signed bit of a signed integer type. Clang's sanitizer will
warn about this:
hw/ide/ahci.c:1210:27: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
MacOSX doesn't pull .o files from .a archives if the symbol that it
requires is one which the .o file defines as a common symbol.
(Common symbols are those declared without "extern"; the linker
will merge together common symbols with the same name, so
redeclaring the same variable in two compilation units results in
them referring to the same symbol rather than a compilation error).
This MacOSX difference from traditional linker behaviour means that
"make check" produces link errors:
Undefined symbols for architecture x86_64:
"_cur_mon", referenced from:
_error_vprintf in libqemuutil.a(qemu-error.o)
_error_printf in libqemuutil.a(qemu-error.o)
_error_printf_unless_qmp in libqemuutil.a(qemu-error.o)
_error_print_loc in libqemuutil.a(qemu-error.o)
_error_report in libqemuutil.a(qemu-error.o)
ld: symbol(s) not found for architecture x86_64
in this case because "cur_mon" is a common symbol in
libqemustub.a(mon-set-error.o).
In QEMU we don't make any use at all of the common symbol
functionality, so we can avoid this problem entirely simply
by compiling with -fno-common. Enable this option for all
builds, not just MacOSX, so that if we ever inadvertently
introduce multiple definitions of some variable that will
be immediately spotted as a build error rather than only
breaking the MacOSX build.
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1393451610-24617-1-git-send-email-peter.maydell@linaro.org
gcc's C++ compiler complains about being passed some -W options
which make sense for C but not for C++. This means we mustn't try
a C++ compile with QEMU_CFLAGS, but only with a filtered version
that removes the offending options. This filtering was already being
done for uses of C++ in the build itself, but was omitted for the
"does C++ work?" configure test. This only showed up when doing
builds which explicitly enabled -Werror with --enable-werror,
because the "do the compilers work" tests were mistakenly placed
above the "default werror based on whether compiling from git" code.
Another error in this category is that clang warns if you ask it to
compile C++ code from a file named "foo.c". Further, because we
were running do_cc in a subshell in the condition part of an "if",
the error_exit inside do_compiler wouldn't terminate configure and
we would plunge on regardless. Fix this complex of errors:
1. Move the default-werror code up so that there are no invocations
of compile_object and friends between it and the point where we
set $werror explicitly based on the --enable-werror command line
option.
2. Provide a mechanism for filtering QEMU_CFLAGS to create
QEMU_CXXFLAGS, and use it for the test we run here.
3. Provide a do_cxx function to run a test with the C++ compiler
rather than doing cute tricks with subshells and do_cc.
4. Use a new temporary file TMPCXX for the C++ program fragment.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1393352869-22257-1-git-send-email-peter.maydell@linaro.org
Tested-by: Andreas Färber <afaerber@suse.de>
Using an invalid option for a block device that is opened with
BDRV_O_PROTOCOL led to drv = NULL, and when trying to include the driver
name in the error message, qemu dereferenced it:
$ x86_64-softmmu/qemu-system-x86_64 -drive file=/tmp/test.qcow2,file.foo=bar
Segmentation fault (core dumped)
With this patch applied, the expected error message is printed:
$ x86_64-softmmu/qemu-system-x86_64 -drive file=/tmp/test.qcow2,file.foo=bar
qemu-system-x86_64: -drive file=/tmp/test.qcow2,file.foo=bar: could
not open disk image /tmp/test.qcow2: Block protocol 'file' doesn't
support the option 'foo'
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
If aio=native, we check that cache.direct is set as well. If however
cache wasn't specified at all, qemu just segfaulted.
The old condition didn't make any sense anyway because it effectively
only checked for the default cache mode case, but not for an explicitly
set cache.direct=off mode.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Eric Blake <eblake@redhat.com>
Encrypted images need a password before they can be used, and we don't
want blockdev-add to create BDSes that aren't fully initialised. So for
now simply forbid encrypted images; we can come back to it later if we
need the functionality.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
The bdrv_create() implementation of the block/raw-win32 "file" protocol
driver should strip the "file:" prefix from filenames if present.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
