Removes the following warning
CC i386-linux-user/syscall.o
cc1: warnings being treated as errors
/media/nfs/qemu/linux-user/syscall.c: In function ‘do_syscall’:
/media/nfs/qemu/linux-user/syscall.c:2219: warning: ‘array’ may be used uninitialized in this function
Signed-off-by: Vibi Sreenivasan <vibi_sreenivasan@cms.com>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
This patch is fixing following issues :
- commit 8fea36025b was applied to
do_getsockname instead of do_accept.
- Some syscalls were not checking properly the memory addresses passed
as argument
- Add check before syscalls made for cases like do_getpeername() where
we're using the address parameter after doing the syscall
- Fix do_accept to return EINVAL instead of EFAULT when parameters
invalid to match with linux behaviour
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
There's a error When doing something like that :
find / -type f -print0 | xargs -0 echo
[ done in a arm chroot with qemu-arm and linux binfmt stuff or with
find / -type f -print0 | qemu-arm -L <path> <path>/usr/bin/xargs -0
echo ]
Doing this outsite qemu is fine. The problem was the huge number of
parameters. Increasing MAX_ARG_PAGES is fixing that.
While I was at it, I've modified linux-user/main.c to report error code
of loader_exec. It helps to debug/know what's wrong.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
For Sparc64, this fixes the PCI bridge configuration bugs revealed by the
improved bridge handling (b7ee1603c1).
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
MADD was not correctly writing to HI.
MSUB/MSUBU are specified as `HI||LO - product', not `product - HI||LO'.
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
When converting from hx to texi format, hxtool (or to be
more precise sh which interprets hxtool) used standard
shell expansion of wildcards while writing lines to the
output.
Thus, something like "Password: ********"
looked very different in the generated documentation.
The patch disables this unwanted wildcard expansion.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Fix missing strnlen (a GNU extension) problems by using qemu_strnlen
used for user emulators also for system emulators.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
We want to do (at least) two things to the virtio-balloon device:
suppress it, and control its PCI address. Option -no-virtio-balloon
lets us do only the former. To get the latter, replace
-no-virtio-balloon with
-balloon none disable balloon device
-balloon virtio[,addr=str]
enable virtio balloon device (default)
Syntax suggested by Anthony Liguori.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
[ Applies on top of my recently posted slirp series. ]
Allow tftp requests with filenames that do not start with a slash.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Valgrind was so kind to remark that no one bothers to release keycodes
after use and that something is fishy about cleaning up the requested
keyboard descriptor. With this patch applied, we no longer leak about
12k during startup.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch aligns the KVM-related layout and encoding of the CPU state
to be saved to disk or migrated with qemu-kvm. The major differences are
reordering of fields and a compressed interrupt_bitmap into a single
number as there can be no more than one pending IRQ at a time.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
At this point, this refactoring looks like overkill. But we will need it
for CPU hotplugging, and qemu-kvm already carries it. Merging it early
would help qemu-kvm when rebasing against upstream.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Refactor the ACL monitor interface to make full use of the monitor
command dispatcher. This also gives proper help formatting and command
completion. Note that 'acl allow' and 'acl deny' were combined to
'acl_add aclname match allow|deny [index]' for consistency reasons.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This reverts commit 8217606e6e (and
updates later added users of qemu_register_reset), we solved the
problem it originally addressed less invasively.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
During startup and after reset we have to synchronize user space to the
in-kernel KVM state. Namely, we need to transfer the VCPU registers when
they change due to VCPU as well as APIC reset.
This patch refactors the required hooks so that kvm_init_vcpu registers
its own per-VCPU reset handler and adds a cpu_synchronize_state to the
APIC reset. That way we no longer depend on the new reset order (and can
drop this disliked interface again) and we can even drop a KVM hook in
main().
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The "pci_addr=" prefix currently required by pci_add/remove and
drive_add has no practical use. Drop it, but still silently accept it
for backward compatibility.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The really time consuming part of snapshotting is to adjust the reference count
of all clusters. Currently after each adjusted cluster the refcount block is
written to disk.
Don't write each single byte immediately to disk but cache all writes to the
refcount block and write them out once we're done with the block.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
When using O_DIRECT, qcow2 snapshots didn't work any more for me. In the
process of creating the snapshot, qcow2 tries to pwrite some new information
(e.g. new L1 table) which will often end up being after the old end of the
image file. Now pwrite tries to align things and reads the old contents of the
file, read returns 0 because there is nothing to read after the end of file and
pwrite is stuck in an endless loop.
This patch allows to pread beyond the end of an image file. Whenever the
given offset is after the end of the image file, the read succeeds and fills
the buffer with zeros.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
fix memory leak in cpu_unregister_map_client() and cpu_notify_map_clients().
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The documentation shows how to use -kernel and friends for booting Linux,
but obviously knows nothing about multiboot yet.
Let's include some documentation for multiboot, so people know how to fully
exploit this cool new feature.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
