This makes the code easier to read - no functional change.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190305195519.24303-3-svens@stackframe.org>
Instead of using the open-coded versions, use the helper already
present as this makes the code easier to read and less error-prone.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190305195519.24303-2-svens@stackframe.org>
Qemu will crash with the assertion error that "assert(r->req.aiocb !=
NULL)" in scsi_read_complete if request is invaild or disk is no medium.
The error is below:
qemu-kvm: hw/scsi/scsi_disk.c:299: scsi_read_complete: Assertion
`r->req.aiocb != NULL' failed.
This patch add a funtion scsi_read_complete_noio to fix it.
Signed-off-by: Zhengui Li <lizhengui@huawei.com>
Message-Id: <1551949966-20092-1-git-send-email-lizhengui@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since OpenBSD 6.0 [1], W^X is enforced by default [2].
TCG requires WX access. Disable W^X if it is available.
This fixes:
# lm32-softmmu/qemu-system-lm32
Could not allocate dynamic translator buffer
# sysctl kern.wxabort=1
kern.wxabort: 0 -> 1
# lm32-softmmu/qemu-system-lm32
mmap: Not supported
Abort trap (core dumped)
# gdb -q lm32-softmmu/qemu-system-lm32 qemu-system-lm32.core
(gdb) bt
#0 0x000017e3c156c50a in _thread_sys___syscall () at {standard input}:5
#1 0x000017e3c15e5d7a in *_libc_mmap (addr=Variable "addr" is not available.) at /usr/src/lib/libc/sys/mmap.c:47
#2 0x000017e17d9abc8b in alloc_code_gen_buffer () at /usr/src/qemu/accel/tcg/translate-all.c:1064
#3 0x000017e17d9abd04 in code_gen_alloc (tb_size=0) at /usr/src/qemu/accel/tcg/translate-all.c:1112
#4 0x000017e17d9abe81 in tcg_exec_init (tb_size=0) at /usr/src/qemu/accel/tcg/translate-all.c:1149
#5 0x000017e17d9897e9 in tcg_init (ms=0x17e45e456800) at /usr/src/qemu/accel/tcg/tcg-all.c:66
#6 0x000017e17d9891b8 in accel_init_machine (acc=0x17e3c3f50800, ms=0x17e45e456800) at /usr/src/qemu/accel/accel.c:63
#7 0x000017e17d989312 in configure_accelerator (ms=0x17e45e456800, progname=0x7f7fffff07b0 "lm32-softmmu/qemu-system-lm32") at /usr/src/qemu/accel/accel.c:111
#8 0x000017e17d9d8616 in main (argc=1, argv=0x7f7fffff06b8, envp=0x7f7fffff06c8) at vl.c:4325
[1] https://www.openbsd.org/faq/upgrade60.html
[2] https://undeadly.org/cgi?action=article&sid=20160527203200
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190307142822.8531-3-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Previous to OpenBSD 6.3 [1], fcntl(F_SETFL) is not permitted on
memory devices.
Trying this call sets errno to ENODEV ("not a memory device"):
19 ENODEV Operation not supported by device.
An attempt was made to apply an inappropriate function to a device,
for example, trying to read a write-only device such as a printer.
Do not assert fcntl failures in this specific case (errno set to ENODEV)
on OpenBSD. This fixes:
$ lm32-softmmu/qemu-system-lm32
assertion "f != -1" failed: file "util/oslib-posix.c", line 247, function "qemu_set_nonblock"
Abort trap (core dumped)
[1] The fix seems https://github.com/openbsd/src/commit/c2a35b387f9d3c
"fcntl(F_SETFL) invokes the FIONBIO and FIOASYNC ioctls internally, so
the memory devices (/dev/null, /dev/zero, etc) need to permit them."
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190307142822.8531-2-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Instead of deny build of QEMU without a default accelerator, simply
report an error when the user haven't passed -accel or -machine accel=
and TCG and KVM isn't builtin.
./configure already check that at least one accelerator is available.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It is only necessary to clear block-obj-y because Makefile.objs
uses "+=" instead of "="; fix that and remove the assignment.
The other variables need not be cleared at all.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It is possible to specify the trace/ directory already in objs-y;
there is no need to have a separate unnest-vars invocation.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Kiarie <davidkiarie4@gmail.com>
Message-Id: <20190304151827.1813-2-davidkiarie4@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
If SIGP is set, the 'Wait for Reselection' command should jump
immediately to the address stored in the second DWORD of the
instruction. This fixes spurious hangs in the HP-UX 11.11
installer when the SIGP bit gets set by the kernel before the
'Wait for Reselection' command is executed by SCRIPTS.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Tested-by: Helge Deller <deller@gmx.de>
Message-Id: <20190217113717.7077-1-svens@stackframe.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
HP-UX checks this register after sending data to the target. If there's no valid
information present, it assumes the client disconnected because the kernel sent
to much data. Implement at least some of the SBCL functionality that is possible
without having a real SCSI bus.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20190215194021.20543-1-svens@stackframe.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Build fails with gcc 9:
CC ppc64-softmmu/hw/scsi/virtio-scsi.o
hw/scsi/virtio-scsi.c: In function ‘virtio_scsi_do_tmf’:
hw/scsi/virtio-scsi.c:265:39: error: taking address of packed member of ‘struct virtio_scsi_ctrl_tmf_req’ may result in an unaligned pointer value [-Werror=address-of-packed-member]
265 | virtio_tswap32s(VIRTIO_DEVICE(s), &req->req.tmf.subtype);
| ^~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
All the fields in struct virtio_scsi_ctrl_tmf_req are naturally aligned,
so we could in theory drop QEMU_PACKED. Unfortunately, the header file
is imported from linux which already has the packed attribute. Trying to
fix that in the update-linux-headers.sh script is likely to produce
ugliness. Turn the call to virtio_tswap32s() into an assignment instead.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155137678223.44753.5438092367451176318.stgit@bahia.lan>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Intel Processor Trace required CPUID[0x14] but the cpuid_level
have no change when create a kvm guest with
e.g. "-cpu qemu64,+intel-pt".
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Message-Id: <1548805979-12321-1-git-send-email-luwei.kang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The CPUID code will call kvm_arch_get_supported_cpuid() and, even though
it is undef kvm_enabled() so it never runs for user-mode emulators,
sometimes clang will not optimize it out at -O0.
That could be considered a compiler bug, however at -O0 we give it
a pass and just add the stubs.
Reported-by: Kamil Rytarowski <n54@gmx.com>
Tested-by: Kamil Rytarowski <n54@gmx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The configure script checks multiple times whether it works in a git
repository and it does this by "test -e "${source_path}/.git" in 4 cases
but in one case where it tries to enable werror "-d" is used there which
fails on git worktrees as .git is a file then and not a directory.
This changes the test to "-e" as other occurrences.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20190228043503.68494-1-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Before this patch, if elf2dmp failed to find NT kernel PE magic in
allowed virtual address range, then it assumes NULL as NT kernel
address and cause segfault.
This patch fix the problem described above by checking NT kernel address
before futher processing.
Signed-off-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-Id: <20190219211936.6466-1-viktor.prutyanov@phystech.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Some Linux specific code is missing guards, leading to
build failure on OSX:
$ sudo brew install libiscsi
$ ./configure && make
[...]
CC block/iscsi.o
qemu/block/iscsi.c:338:24: error: 'iscsi_aiocb_info' defined but not used [-Werror=unused-const-variable=]
static const AIOCBInfo iscsi_aiocb_info = {
^~~~~~~~~~~~~~~~
qemu/block/iscsi.c:168:1: error: 'iscsi_schedule_bh' defined but not used [-Werror=unused-function]
iscsi_schedule_bh(IscsiAIOCB *acb)
^~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Add guards to restrict this code for Linux.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190220000553.28438-1-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Some multiboot images could be in the ELF format. In the current
implementation QEMU fails because we try to load these images
as a PVH image.
In order to fix this issue, we should try multiboot first (we
already check the multiboot magic header before to load it).
If it is not a multiboot image, we can try the PVH loader.
Fixes: ab969087da ("pvh: Boot uncompressed kernel using direct boot ABI", 2019-01-15)
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20190214180216.246707-1-sgarzare@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Spotted by ASAN when 'make check'.
Signed-off-by: Li Qiang <liq3ea@163.com>
Message-Id: <20190310160227.103090-1-liq3ea@163.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Fixes: fc281c8020
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Re-enable PCI_DEVICES for RISC-V.
The patch is based on other <arch>/Kconfig.
Signed-off-by: David Abdurachmanov <david.abdurachmanov@gmail.com>
Fixes: 82a230d5a3 ("riscv-softmmu.mak: replace CONFIG_* with Kconfig "select" directives")
Message-Id: <20190311091256.18385-1-david.abdurachmanov@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
CONFIG_VFIO_PCI was not "default y" - and once you do that, it is also
important to disable it if PCI is not there.
Reported-by: Alex Williamson <alex.williamson@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Do not add/del coalesced IO ranges in the case where the
same FlatRanges are present in both old and new FlatViews
Fixes: 3ac7d43a6f ("memory: update coalesced_range on transaction_commit")
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Message-Id: <59572a7353830be4b7aa57d79ccb7ad6b72f0dda.1549406119.git.jag.raman@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add tests for a variety of MSA integer subtract instructions.
Signed-off-by: Mateja Marjanovic <mateja.marjanovic@rt-rk.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1551964929-17845-6-git-send-email-mateja.marjanovic@rt-rk.com>
Add tests for a variety of MSA integer multiply instructions.
Signed-off-by: Mateja Marjanovic <mateja.marjanovic@rt-rk.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1551964929-17845-5-git-send-email-mateja.marjanovic@rt-rk.com>
Add tests for a variety of MSA integer dot product instructions.
Signed-off-by: Mateja Marjanovic <mateja.marjanovic@rt-rk.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1551964929-17845-4-git-send-email-mateja.marjanovic@rt-rk.com>
Add tests for a variety of MSA integer divide instructions.
Signed-off-by: Mateja Marjanovic <mateja.marjanovic@rt-rk.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1551964929-17845-3-git-send-email-mateja.marjanovic@rt-rk.com>
Add tests for a variety of MSA integer average instructions.
Signed-off-by: Mateja Marjanovic <mateja.marjanovic@rt-rk.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1551964929-17845-2-git-send-email-mateja.marjanovic@rt-rk.com>
Rename two header files for consistency and clarity. Do all other
changes to accommodate new names.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Rikalo <amarkovic@wavecomp.com>
Message-Id: <1551981716-30664-3-git-send-email-aleksandar.markovic@rt-rk.com>
Correct preambles of test source files.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Rikalo <amarkovic@wavecomp.com>
Message-Id: <1551981716-30664-2-git-send-email-aleksandar.markovic@rt-rk.com>
If we're doing an out-of-tree build of Sphinx, then we
copy some extra spurious files to the install directory
as part of 'make install':
qemu-ga-qapi.texi
qemu-ga-ref.7
qemu-ga-ref.7.pod
qemu-ga-ref.html
qemu-ga-ref.txt
qemu-qmp-qapi.texi
qemu-qmp-ref.7
qemu-qmp-ref.7.pod
qemu-qmp-ref.html
qemu-qmp-ref.txt
because these have been built into build/docs/interop along
with the Sphinx interop documents. Filter them out of the
set of files we install when we're installing the Sphinx-built
manual files. (They are installed into their correct locations
as part of the main install-doc target already.)
Fixes: 5f71eac06e ("Makefile, configure: Support building rST documentation")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190308135744.6480-4-peter.maydell@linaro.org
We forgot the '-r' option on the rm command to clean up the
Sphinx .doctrees working directory, which meant that
"make distclean" fails:
rm: cannot remove '.doctrees': Is a directory
Add the missing option.
Fixes: 5f71eac06e ("Makefile, configure: Support building rST documentation")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190308135744.6480-3-peter.maydell@linaro.org
The Sphinx build-sphinx tool does not permit building a manual
into the same directory as its source files. This meant that
commit 5f71eac06e broke QEMU in-source-tree
builds, which would fail with:
Error: source directory and destination directory are same.
Fix this by making in-tree builds build the Sphinx manuals
into a subdirectory of docs/.
Fixes: 5f71eac06e ("Makefile, configure: Support building rST documentation")
Reported-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190308135744.6480-2-peter.maydell@linaro.org
Combine all variant in a single handler. As source and destination
have different element sizes, we can't use gvec expansion. Expand
manually. Also watch out for overlapping source and destination
registers. Use a safe evaluation order depending on the operation.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-33-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Very similar to VECTOR LOAD WITH LENGTH, just the opposite direction.
Properly probe write access before modifying memory.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-32-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Similar to VECTOR LOAD MULTIPLE, just the opposite direction. Probe
write access first.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-31-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
As we only store one element, there is nothing to consider regarding
exceptions.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-30-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Instead of checking e.g. the first access on every touched page, we should
check the actual access, otherwise we might get false positives when Low
Address Protection (LAP) is active. As probe_write() can only deal with
accesses to one page, we have to loop.
Use i64 for the length, although not needed - easier to reuse
TCG temps we already have in the translation functions where this will
be used. Also allow it to be used from other helpers.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-28-david@redhat.com>
[CH: add missing page_check_range()]
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Load both elements signed and store them into the two 64 bit elements.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-27-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Provide an implementation based on i64 and on real host vectors.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-26-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Similar to VECTOR GATHER ELEMENT, but the other direction.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-25-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Like VECTOR REPLICATE, but the element to be replicated comes from an
immediate.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-24-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Replicate via the special gvec helper.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-23-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Read the whole input before modifying the destination vector.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-22-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Take care of overlying inputs and outputs by using a temporary vector.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-21-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This is a big one. Luckily we only have a limited set of such nasty
instructions.
We'll implement all variants with helpers, except when sources and
the destination don't overlap for VECTOR PACK. Provide different helpers
when the cc is to be modified. We'll return the cc then via env->cc_op.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-20-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
We cannot use gvec expansion as source and destination elements are
have different element numbers. So we'll expand using a fancy loop.
Also, we have to take care of overlapping source and destination
registers, therefore use a safe evaluation irder depending on the
operation.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-19-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
