Paolo Bonzini [Tue, 13 Sep 2011 14:19:53 +0000 (16:19 +0200)]
scsi: notify the device when unit attention is reported
Reporting media change events via unit attention sense codes requires
a small state machine: first report "NO MEDIUM", then report "MEDIUM MAY
HAVE CHANGED". Unfortunately there is no good hooking point for the
device to notice that its pending unit attention condition has been
reported. This patch reworks the generic machinery to add one.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Mon, 17 Oct 2011 14:34:59 +0000 (16:34 +0200)]
atapi: cleanup/fix mode sense results
The first two bytes (after the 8-byte ATAPI header) are the mode page
number and the number of bytes after the length field itself. Make
this clear in the code.
The AUDIO_CTL page was filled with wrong values. It is not anymore in
MMC, but at least keep the values sane.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Tue, 13 Sep 2011 12:41:56 +0000 (14:41 +0200)]
atapi/scsi: unify definitions for MMC
The definitions in ide/internal.h are duplicates, since ATAPI commands
actually come from SCSI. Use the ones in scsi-defs.h and move the
missing ones there. Two exceptions:
- MODE_PAGE_WRITE_PARMS conflicts with the "flexible disk geometry"
page in scsi-disk.c. It is unused, so pick the latter.
- GPCMD_* is left in ide/internal.h, at least for now.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Thu, 27 Oct 2011 09:54:27 +0000 (10:54 +0100)]
block: set bs->read_only before .bdrv_open()
Several block drivers set bs->read_only in .bdrv_open() but
block.c:bdrv_open_common() clobbers its value. Additionally, QED uses
bdrv_is_read_only() in .bdrv_open() to decide whether to perform
consistency checks.
The correct ordering is to initialize bs->read_only from the open flags
before calling .bdrv_open(). This way block drivers can override it if
necessary and can use bdrv_is_read_only() in .bdrv_open().
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Ronnie Sahlberg [Thu, 27 Oct 2011 09:33:21 +0000 (20:33 +1100)]
Documentation: Describe NBD URL syntax
This patch adds a short description of how to specify a NBD device
to QEMU.
Syntax for both TCP and Unix Domain Sockets are provided as well
as examples.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kevin Wolf [Wed, 26 Oct 2011 10:25:52 +0000 (12:25 +0200)]
vmdk: Fix possible segfaults
Data we read from the disk isn't necessarily null terminated and may not
contain the string we're looking for. The code needs to be a bit more careful
here.
Eric Sunshine [Wed, 26 Oct 2011 19:51:18 +0000 (15:51 -0400)]
Teach block/vdi about "discarded" (no longer allocated) blocks
An entry in the VDI block map will hold an offset to the actual block if
the block is allocated, or one of two specially-interpreted values if
not allocated. Using VirtualBox terminology, value VDI_IMAGE_BLOCK_FREE
(0xffffffff) represents a never-allocated block (semantically arbitrary
content). VDI_IMAGE_BLOCK_ZERO (0xfffffffe) represents a "discarded"
block (semantically zero-filled). block/vdi knows only about
VDI_IMAGE_BLOCK_FREE. Teach it about VDI_IMAGE_BLOCK_ZERO.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Ronnie Sahlberg [Wed, 26 Oct 2011 12:51:37 +0000 (23:51 +1100)]
Documentation: Add iSCSI section
Add new section for device URL syntax for special files and describe the iSCSI
URL with examples
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Ronnie Sahlberg [Tue, 25 Oct 2011 08:24:24 +0000 (19:24 +1100)]
iSCSI block driver
This provides built-in support for iSCSI to QEMU.
This has the advantage that the iSCSI devices need not be made visible to the host, which is useful if you have very many virtual machines and very many iscsi devices.
It also has the benefit that non-root users of QEMU can access iSCSI devices across the network without requiring root privilege on the host.
This driver interfaces with the multiplatform posix library for iscsi initiator/client access to iscsi devices hosted at
git://github.com/sahlberg/libiscsi.git
The patch adds the driver to interface with the iscsi library.
It also updated the configure script to
* by default, probe is libiscsi is available and if so, build
qemu against libiscsi.
* --enable-libiscsi
Force a build against libiscsi. If libiscsi is not available
the build will fail.
* --disable-libiscsi
Do not link against libiscsi, even if it is available.
When linked with libiscsi, qemu gains support to access iscsi resources such as disks and cdrom directly, without having to make the devices visible to the host.
You can specify devices using a iscsi url of the form :
iscsi://[<username>[:<password>@]]<host>[:<port]/<target-iqn-name>/<lun>
When using authentication, the password can optionally be set with
LIBISCSI_CHAP_PASSWORD="password" to avoid it showing up in the process list
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Luiz Capitulino [Fri, 21 Oct 2011 18:05:43 +0000 (16:05 -0200)]
Drop qemu-objects.h from modules that don't require it
Previous commits dropped most qobjects usage from qemu modules
(now they are a low level interface used by the QAPI). However,
some modules still include the qemu-objects.h header file.
This commit drops qemu-objects.h from some of those modules
and includes qjson.h instead, which is what they actually need.
Luiz Capitulino [Fri, 21 Oct 2011 18:15:31 +0000 (16:15 -0200)]
QMP: Drop the query commands dispatch table
Because QMP development originated in the monitor, it has
inherited the monitor's distinction between query- and
non-query commands.
However, previous commits unified both commands and the
distinction is gone. This commit drops the query commands
dispatch table and does some simplifications along the way.
Luiz Capitulino [Fri, 21 Oct 2011 16:15:33 +0000 (14:15 -0200)]
qapi: Convert query-pci
This also fixes a bug with the old version: QMP would invert device id
and vendor id. This would look ok on HMP because it was printing
"device:vendor" instead of "vendor:device".
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Luiz Capitulino [Fri, 21 Oct 2011 13:41:37 +0000 (11:41 -0200)]
qapi: Convert query-balloon
Please, note that some of the code supporting memory statistics is
still around (eg. virtio_balloon_receive_stats() and reset_stats()).
Also, the qmp_query_balloon() function is synchronous and thus doesn't
make any use of the (not fully working) monitor's asynchronous command
support (the old non-qapi implementation did).
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Luiz Capitulino [Mon, 17 Oct 2011 18:41:22 +0000 (16:41 -0200)]
qapi: Convert query-vnc
There are three important remarks in relation to the non-qapi command:
1. This commit also fixes the behavior of the 'query-vnc' and 'info vnc'
commands to return an error when qemu is built without VNC support
(ie. --disable-vnc). The non-qapi command would return the OK
response in QMP and no response in HMP
2. The qapi version explicitly marks the fields 'host', 'family',
'service' and 'auth' as optional. Their are not documented as optional
in the non-qapi command doc, but they would not be returned if
vnc support is disabled. The qapi version maintains the same
semantics, but documents those fields correctly
3. The 'clients' field, which is a list, is marked as optional but is
always returned. If there are no clients connected an empty list
is returned. This is not the Right Way to this in the qapi but it's
how the non-qapi command used to work
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
ppc64-linux-user: Properly interpret the entry function descriptor.
Don't confuse the load address with the load bias. They're equal
for ET_DYN objects (i.e. ld.so) but different for ET_EXEC objects
(i.e. statically linked).
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Alexander Graf [Tue, 27 Sep 2011 12:39:42 +0000 (14:39 +0200)]
linux-user: implement reboot syscall
For OBS, we're running a full cross-guest inside of a VM. When a build
is done there, we reboot the guest as shutdown mechanism.
Unfortunately, reboot is not implemented in linux-user. So this mechanism
fails, spilling unpretty warnings. This patch implements sys_reboot()
emulation.
Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Alexander Graf [Sun, 25 Sep 2011 04:25:35 +0000 (06:25 +0200)]
linux-user: fix openat
When running openat using qemu-arm, we stumbled over invalid permissions
on the created files. The reason for this is that the mode parameter gets
treates as an O_... flag, which it isn't - it's a permission bitmask.
This patch removes the needless translation of the mode parameter,
rendering permission passing of openat() to work with linux-user.
While ALIGNADDR was implemented out-of-line, ALIGNADDRL was not
implemeneted at all. However, this is a very simple operation
so we're better off doing this inline.
Signed-off-by: Richard Henderson <rth@twiddle.net>
target-sparc: Do exceptions management fully inside the helpers.
This reduces the size of the individual translation blocks, since
we only emit a single call for each FOP rather than three. In
addition, clear_float_exceptions expands inline to a single byte store.
Signed-off-by: Richard Henderson <rth@twiddle.net>
target-sparc: Change fpr representation to doubles.
This allows a more efficient representation for 64-bit hosts.
It should be about the same for 32-bit hosts, as we can still
access the individual pieces of the double.
Signed-off-by: Richard Henderson <rth@twiddle.net>
target-sparc: Add accessors for double-precision fpr access.
Begin using i64 quantities to manipulate double-precision values.
On a 64-bit host this will, for the moment, generate less efficient
code; on a 32-bit host code quality should be largely unchanged.
Code quality for 64-bit will be adjusted with a subsequent patch.
Signed-off-by: Richard Henderson <rth@twiddle.net>
target-sparc: Add accessors for single-precision fpr access.
Load, store, and "create destination". This version attempts to
change the behaviour of the translator as little as possible. We
previously used cpu_tmp32 as the temporary destination, and we
continue to use that. This will eventually allow a change in
representation of the fprs.
Change the name of the cpu_fpr array to make certain that all
instances are converted.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Blue Swirl [Mon, 1 Aug 2011 09:20:58 +0000 (09:20 +0000)]
Sparc: avoid AREG0 for softint op helpers and Leon cache control
Make softint op helpers and Leon cache irq manager take a parameter
for CPUState instead of relying on global env. Move the functions
to int{32,64}_helper.c.
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Gerd Hoffmann [Fri, 21 Oct 2011 13:56:21 +0000 (15:56 +0200)]
spice: fix file handle cleanup
Setting both read and write handlers to NULL in qemu_set_fd_handler
is not enougth to make qemu purge the file handle from the list.
We must set opaque to NULL too.
Alon Levy [Sun, 23 Oct 2011 15:03:52 +0000 (17:03 +0200)]
qxl: reset update_surface
update init_qxl_ram to reset update_surface to 0. This fixes one case
of breakage when installing an old driver in a vm that had a new driver
installed. The newer driver would know about surface creation and would
change update_surface to !=0, then a reset would happen, all surfaces
are destroyed, then the old driver is initialized and issues an
UPDATE_AREA, and spice server aborts on invalid surface.
RHBZ: 690427
Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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