Archipelago » qemu

virtio-9p: Hide user.virtfs xattr in case of mapped security.

With mapped security mode we use "user.virtfs" namespace is used
to store the virtFs related attributes. So hide it from user.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

[virtio-9p] qemu: virtio-9p: Implement LOPEN

Implement 9p2000.L version of open(LOPEN) interface in qemu 9p server.

For LOPEN, no need to convert the flags to and from 9p mode to VFS mode.

Synopsis:

size[4] Tlopen tag[2] fid[4] mode[4]

size[4] Rlopen tag[2] qid[13] iounit[4]...

virtio-9p: Implement TXATTRWALK

TXATTRWALK: Descend a ATTR namespace

size[4] TXATTRWALK tag[2] fid[4] newfid[4] name[s]
 size[4] RXATTRWALK tag[2] size[8]

txattrwalk gets a fid pointing to xattr. This fid can later be
used to get read the xattr value. If name is NULL the fid returned...

[virtio-9p] Make v9fs_do_utimensat accept timespec structures instead of v9stat.

Currently v9fs_do_utimensat takes a V9fsStat argument and builds
timespec structures. It sets tv_nsec values to 0 by default. Instead
of this it should take struct timespec² and pass it down to the...

[virtio-9p] Implement TLINK for 9P2000.L

Create a Hardlink.

SYNOPSIS

size⁴ Tlink tag² dfid⁴ oldfid⁴ newpath[s]

size⁴ Rlink tag²

DESCRIPTION

Create a link 'newpath' in directory pointed by dfid linking to oldfid path.

Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>

[virtio-9p] This patch implements TLCREATE for 9p2000.L protocol.

SYNOPSIS

size[4] Tlcreate tag[2] fid[4] name[s] flags[4] mode[4] gid[4]

size[4] Rlcreate tag[2] qid[13] iounit[4]

DESCRIPTION

The Tlreate request asks the file server to create a new regular file with the...

qemu: virtio-9p: Implement TMKDIR

Synopsis

size[4] Tmkdir tag[2] fid[4] name[s] mode[4] gid[4]

size[4] Rmkdir tag[2] qid[13]

Description

mkdir asks the file server to create a directory with given name,
    mode and gid. The qid for the new directory is returned with...

virtio-9p: Return correct error from v9fs_remove

Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com>

In v9fs_remove_post_remove() we currently ignore the error returned by
the previous call to remove() and return an error only if freeing the
fid fails. However, the client expects to see the error from remove()....

virtio-9p: Compute iounit based on host filesystem block size

Compute iounit based on the host filesystem block size and pass it to
client with open/create response. Also return iounit as statfs's f_bsize
for optimal block size transfers.

Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>...

virtio-9p: Do not reset atime

Current code resets file's atime to 0 when there is a change in mtime.
    This results in resetting the atime to "1970-01-01 05:30:00". For
    example, truncate -s 0 filename results in changing the mtime to the
    truncate time, but resets the atime to "1970-01-01 05:30:00". utime...

vnc: use bswapNN() rather than bswap_NN()

bswap_NN() variants are not always available in CONFIG_MACHINE_BSWAP_H case
and bswapNN() are public APIs in "bswap.h".

Signed-off-by: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

Fix ivshmem build on 32-bit hosts

stat() fields can be more or less anything depending on configuration, cast
explicitly to uint64_t to avoid printf() format mismatches.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

hw/ivshmem.c don't check for negative values on unsigned data types

There is no need to check for dest < 0 or vector >= 0 as both are
uint16_t.

This should fix problems with broken build with aggressive compiler
flags. Reported by Xudong Hao <xudong.hao@intel.com>...

load_multiboot(): get_image_size() returns int

Do not store return of get_image_size() in a uint32_t as it makes it
impossible to detect error returns from get_image_size.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

Fix repeated typo: was "end if list" instead of "end of list"

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

Remove unused argument for nbd_client()

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

acpi: fix file size check with -acpitable.

acpi table file can be modified during load so file size check
should be more strict.
pointer calculation should be after qemu_realloc(). not before realloc().

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>...

Fix segfault in mmio subpage handling code.

It is possible that subpage mmio is registered over existing memory
page. When this happens "memory" will have real memory address and not
index into io_mem array so next access to the page will generate
segfault. It is uncommon to have some part of a page to be accessed as...

Sparc: update OpenBIOS images to r859

Update Sparc32 and Sparc64 OpenBIOS images to SVN revision 859.

Bring also pc-bios/README up to date including the update performed by
419ef5f1c6a9614e8ddcb0b0f826de692e7e4a43.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

ppc4xx: correct SDRAM controller warning message condition

The message "Truncating memory to %d MiB to fit SDRAM controller limits"
should be displayed only when a user chooses an amount of RAM which
can't be represented by the PPC 4xx SDRAM controller (e.g. 129MB, which...

ppc4xx: load Bamboo kernel, initrd, and fdt at fixed addresses

We can't use the return value of load_uimage() for the kernel because it
can't account for BSS size, and the PowerPC kernel does not relocate
blobs before zeroing BSS.

Instead, we now load at the fixed addresses chosen by u-boot (the normal...

PPC: Add PV hypercall transport through fw_cfg

On KVM for PPC we need to tell the guest which instructions to use when
doing a hypercall. The clean way to do this is to go through an ioctl
from userspace and passing it on to the guest using the device tree....

Merge remote branch 'qemu-kvm/uq/master' into staging

QMP doc: Add 'Stability Considerations' section

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

VGA: Don't register deprecated VBE range

Old versions of the BOCHs VGA BIOS (cira 2003) made use of VBE
registers at 0xff80/81. In VBE API version 0xb0c2 these were
moved to 0x1ce/cf. Unfortunately, QEMU still registers handlers
for the old range. If a guest attempts to assign an I/O device...

QemuOpts: make most qemu_*_opts static

Switch tree to lookup-by-name using qemu_find_opts().
Also hook up virtfs options so qemu_find_opts works for them too.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

QMP: update 'query-version' documentation

Update the documentation of 'query-version' to output the string version broken
down.

Signed-off-by: Miguel Di Ciurcio Filho <miguel.filho@gmail.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

pckbd: support for commands 0xf0-0xff: Pulse output bit

I have a guest OS which sends the command 0xfd to the keyboard
controller during initialization. To get rid of the message
"qemu: unsupported keyboard cmd=0x%02x\n" I added support for
the pulse output bit commands....

exec: replace tabs by spaces.

Signed-off-by: Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

target-i386: svm: Fix MSRPM check

Correct the calculation of the offset in the msrpm
for the MSR range 0 - 0x1fff.

Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

Replace qemu_malloc + memset with qemu_mallocz

Replace a qemu_malloc call, followed by a memset, with qemu_mallocz.

Found with this Coccinelle semantic patch, adapted from
Coccinelle test package rule 94:
@
type T;
expression x;
expression E;
@

- x = (T)qemu_malloc(E)...

Remove useless NULL check for qemu_strdup return value

Found with this Coccinelle semantic patch:
@
expression E;
identifier ptr;
identifier fn ~= "qemu_strn?dup";
@

ptr = fn(E);
-if (ptr == NULL) { ... }

+ptr = fn(E);

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

QEMUFileBuffered: indicate that we're ready when the underlying file is ready

QEMUFileBuffered stops writing when the underlying QEMUFile is not ready,
and tells its producer so. However, when the underlying QEMUFile becomes
ready, it neglects to pass that information along, resulting in stoppage...

set proper migration status on ->write error (v5)

If ->write fails, declare migration status as MIG_STATE_ERROR.

Also, in buffered_file.c, ->close the object in case of an
error.

Fixes "migrate -d "exec:dd of=file", where dd fails to open file.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>...

sparc escc IUS improvements (SunOS 4.1.4 fix)

According to scc_escc_um.pdf:
- Reset Highest IUS must update irq status to allow processing
of the next priority interrupt.
- rx interrupt has always higher priority than tx on same channel

The documentation only explicitly says that Reset Highest IUS...

win32: Avoid compiler warning (WIN32_LEAN_AND_MEAN redefined)

configure adds the macro WIN32_LEAN_AND_MEAN to
QEMU_CFLAGS, and SDL_syswm.h defines it, too.

This results in a compiler warning (redefinition of
WIN32_LEAN_AND_MEAN in SDL_syswm.h. That warning prevents...

Disable build of ivshmem on non-KVM systems

Signed-off-by: Cam Macdonell <cam@cs.ualberta.ca>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

TCG: Revert ppc64 tcg_out_movi32 change

3b6dac34161bc0a342336072643c2f6d17e0ec45 apparently broke the ppc64 TCG target
compilation in the code path without guest base.

Reverting this line fixes the build.

Signed-off-by: Andreas F?rber <andreas.faerber@web.de>...

RESEND: Inter-VM shared memory PCI device

resend for bug fix related to removal of irqfd

Support an inter-vm shared memory device that maps a shared-memory object as a
PCI device in the guest. This patch also supports interrupts between guest by
communicating over a unix domain socket. This patch applies to the qemu-kvm...

Device specification for shared memory PCI device

Signed-off-by: Cam Macdonell <cam@cs.ualberta.ca>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

Support marking a device as non-migratable

A non-migratable device should be removed before migration and re-added after.

Signed-off-by: Cam Macdonell <cam@cs.ualberta.ca>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

microblaze: Fix the target version of stat64 struct

MicroBlaze needs TARGET_STAT64_HAS_BROKEN_ST_INO.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>

mips: Add support for VInt and VEIC irq modes

Signed-off-by: Edgar E. Iglesias <edgar@axis.com>

audio: make audio_pt_init block all signals

Signed-off-by: malc <av1474@comtv.ru>

kvm: Don't walk memory_size == 0 slots in kvm_client_migration_log

If we've unregistered a memory area, we should avoid calling
qemu_get_ram_ptr() on the left over phys_offset cruft in the
slot array. Now that we support removing ramblocks, the
phys_offset ram_addr_t can go away and cause a lookup fault...

block: Change bdrv_commit to handle multiple sectors at once

bdrv_commit copies the image to its backing file sector by sector, which
is (surprise!) relatively slow. Let's take a larger buffer and handle more
sectors at once if possible.

With a 1G qcow2 file, this brought the time bdrv_commit takes down from...

block migration: replace tabs by spaces.

Signed-off-by: Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

block: Change bdrv_eject() not to drop the image

bdrv_eject() gets called when a device model opens or closes the tray.

If the block driver implements method bdrv_eject(), that method gets
called. Drivers host_cdrom implements it, and it opens and closes the...

fix last cpu timer initialization

The timer #0 is the system timer, so the timer #num_cpu is the
timer of the last CPU, and it must be initialized in slavio_timer_reset.

Don't mark non-existing timers as running.

Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>...

Fix uint8_t comparison with negative value

Commit 7bccf57383cca60a778d5c543ac80c9f62d89ef2 missed this one:
/src/qemu/ui/vnc-enc-tight.c: In function 'send_sub_rect':
/src/qemu/ui/vnc-enc-tight.c:1527: warning: comparison is always true due to limited range of data type...