If scheduling fails, the number of outstanding I/Os must be correct,
or there will be a hang when waiting for everything to be flushed.
Reviewed-by: NChristian Brunner <chb@muc.de>
Reported-by: NStefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: NJosh Durgin <josh.durgin@dreamhost.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

The new format is rbd:pool/image[@snapshot][:option1=value1[:option2=value2...]]
Each option is used to configure rados, and may be any Ceph option, or "conf".
The "conf" option specifies a Ceph configuration file to read.

This allows rbd volumes from more than one Ceph cluster to be used by
specifying different monitor addresses, as well as having different
logging levels or locations for different volumes.
Reviewed-by: NChristian Brunner <chb@muc.de>
Signed-off-by: NJosh Durgin <josh.durgin@dreamhost.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

librbd stacks on top of librados to provide access
to rbd images.

Using librbd simplifies the qemu code, and allows
qemu to use new versions of the rbd format
with few (if any) changes.
Reviewed-by: NChristian Brunner <chb@muc.de>
Signed-off-by: NJosh Durgin <josh.durgin@dreamhost.com>
Signed-off-by: NYehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

use the correct way to get the size of a disk device or partition

From: Adam Hamsik <haad@netbsd.org>
Signed-off-by: NChristoph Egger <Christoph.Egger@amd.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

On NetBSD a userland process is better with the character device
interface. In addition, a block device can't be opened twice; if a Xen
backend opens it, qemu can't and vice-versa.
Signed-off-by: NChristoph Egger <Christoph.Egger@amd.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

The vmdk code is sloppy when handling the header descriptor during
creation of an image. Fix all header accesses in the create path to
either store native endianness or convert it when appropriate.
Reported-by: NYury Tsarev <ytsarev@novell.com>
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

Change BDRV_O_NOCACHE to only imply bypassing the host OS file cache,
but no writeback semantics.  All existing callers are changed to also
specify BDRV_O_CACHE_WB to give them writeback semantics.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

BM_STATUS_INT is automatically set during ide_set_irq(), there's no reason to
set it manually in addition.

There is even one case where the interrupt status bit was set, but no IRQ was
raised. This is when the PRD table was reached but there is more data to
transfer. The correct behaviour for this case is not to set BM_STATUS_INT.
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

This patch adds a dummy legacy ISA device whose responsibility is to
deploy sgabios, an option rom for a serial graphics adapter.
The proposal is that this device is always-on when -nographics,
but can otherwise be enable in any setup when -device sga is used.

[v2: suggestions on qdev by Markus ]
[v3: cleanups and documentation, per list suggestions ]
Signed-off-by: NGlauber Costa <glommer@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Currently a NULL token list will crash the parser, instead we have it
pass back a NULL QObject.
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This allows a JSON_ERROR state to be passed to the streamer to force a
flush of the current tokens and pass a NULL token list to the parser
rather that have it churn on bad data. (Alternatively we could just not
pass it to the parser at all, but it may be useful to push there errors
up the stack. NULL token lists are not currently handled by the parser,
the next patch will address that)
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Currently when we reach an error state we effectively flush everything
fed to the lexer, which can put us in a state where we keep feeding
tokens into the parser at arbitrary offsets in the stream. This makes it
difficult for the lexer/tokenizer/parser to get back in sync when bad
input is made by the client.

With these changes we emit an error state/token up to the tokenizer as
soon as we reach an error state, and continue processing any data passed
in rather than bailing out. The reset token will be used to reset the
tokenizer and parser, such that they'll recover state as soon as the
lexer begins generating valid token sequences again.

We also map chr(192,193,245-255) to an error state here, since they are
invalid UTF-8 characters. QMP guest proxy/agent will use chr(255) to
force a flush/reset of previous input for reliable delivery of certain
events, so also we document that thoroughly here.
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Currently we flush the lexer by passing in a NULL character. This
generally forces the lexer to go to the corresponding TERMINAL() state
for whatever token type it is currently parsing, emits the token to the
parser, then puts the lexer back into IN_START state. However, since a
NULL character causes char_consumed to be 0, we always do a second pass
after this, which puts us in the IN_ERROR state. Fix this behavior by
adding a "flush" flag that tells the lexer not to do a more than 1
iteration.
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Once we detect a malformed message, make sure to reset our state.
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

New error-handling framework that allows for exception-like error
propagation.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Will be used by new error propagation framework to convert Error objects
into human-readable form.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Refactor non-QError-specific bits out of qerror_human() into general
function that can be used by the error_get_pretty() analogue in the
new error-propagation framework.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Document more bus addresses.

Update for bugs fixed.

Describe where exactly the -drive options go.

Update for recent split of qdev ide-drive into ide-{cd,hd},
scsi-disk into scsi-{cd,hd}.

Document scsi-hd's removable property only for usb-storage, because
that's where it's used.

Fix description of -global isa.fdc.

Document usb-storage lossage.

Clean up misleading description of network device's split into guest
and host part.

Document -vga's machine dependence.

New qdevs: virtconsole, qxl-vga, isa-vga, intel-hda, usb-ccid

Update for changed pci-assign property iommu.

New section "Default Devices".
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Switch no_user off and make it suppress the default VGA.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Commit 85097db6 changed the timing when kvm_allowed is set until after
kvm is initialized.  During initialization, the ioeventfd initialization code
checks kvm_enabled() and after this change, ioeventfd is effectively disabled.

This causes a significant regression in performance.

Fix this by setting kvm_allowed before calling init.
Reported-by: NKhoa Huynh <khoa@us.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

dynticks will provide equally good timer granularity on all modern Linux
systems.  This is more or less dead code these days.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

The simple backend only supports a maximum of 6 arguments.  Split the
scsi_req_parsed event in two parts to cope with the limit.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Older gcc compilers do not support -Wendif-labels, so move it from the
hardcoded list to the dynamically detected list.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

cppcheck report:
virtio-9p.c:197: warning: Redundant assignment of "flags" to itself
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Reviewed-by: NVenkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Required for regions mapped via qemu_ram_alloc_from_ptr().  VFIO
and ivshmem will make use of this to remove mappings when devices
are hot unplugged.
Signed-off-by: NAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The multiboot info struct's 'boot_device' field has 'part1' set to 0x01, which
maps to the second primary partition. To specify the first primary partition,
'part1' should be set to 0x00, since partition numbers start from zero
according to the multiboot spec.
Signed-off-by: NArun Thomas <arun.thomas@gmail.com>
Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: NAlex Zuepke <azuepke@sysgo.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Based on a patch from Hans de Goede <hdegoede@redhat.com>

This warning is new in gcc 4.6.
Acked-by: NAmit Shah <amit.shah@redhat.com>
Signed-off-by: NChristophe Fergeau <cfergeau@redhat.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

When compiling with DEBUG_TCGV enabled, make the TCGv_ptr type distinct
from TCGv_i32/TCGv_i64. This means that using an i32 or i64 TCG op to
manipulate a TCGv_ptr will always be detected at compile time, rather
than only if compiling on a host system with the other word size.

NB: the tcg_add_ptr and tcg_sub_ptr macros have been removed as they
were not used anywhere.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The prototypes for the ld/st functions on a 64 bit host declared
the address parameter as a TCGv_i64 rather than a TCGv_ptr. This
worked OK (since the two are aliases), but needs to be fixed to
allow extension of TCG type debugging to i64/i32/ptr mismatches.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Use the correct header in the TCG MIPS code to find cacheflush() on OpenBSD
to fix compilation of the MIPS host support for OpenBSD/mips64 based architecures.
Signed-off-by: NBrad Smith <brad@comstyle.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Use the correct _ptr aliases for manipulating the pointer to
the fp_status; this fixes a compilation failure on 64 bit hosts.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Acked-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

* 's390-next' of git://repo.or.cz/qemu/agraf:
  s390x: implement lrvgr
  s390x: fix cksm instruction
  s390x: free tmp explicitly in every opcode for disas_a5()
  target-s390x: Add missing tcg_temp_free_i32()
  target-s390x: Add missing tcg_temp_free_i64() in disas_s390_insn(), opc == 0x90
  target-s390x: Add missing tcg_temp_free_i64() in disas_s390_insn(), opc == 0x8e
  target-s390x: Add missing tcg_temp_free_i64() in disas_b2()
  target-s390x: Add missing tcg_temp_free_i64() in do_mh()
  target-s390x: Add missing tcg_temp_free_i64() in gen_jcc()
  target-s390x: Fix duplicate call of tcg_temp_new_i64
  target-s390x: Fix wrong argument in call of tcg_gen_shl_i64()
  target-s390x: Fix build for non-linux hosts
  s390x: update zipl rom

* 'ppc-next' of git://repo.or.cz/qemu/agraf:
  PPC: fix mpc8544ds pci default devices
  Fix segfault on screendump with -nographic
  PPC: install mpc8544ds.dtb
  PPC: fix sregs usage on booke
  ppc: Fix compilation for ppc64-softmmu