sdk/emulator/qemu.git
13 years agoFix signal handling of SIG_IPI when io-thread is enabled
Alexandre Raymond [Wed, 15 Jun 2011 05:20:31 +0000 (01:20 -0400)]
Fix signal handling of SIG_IPI when io-thread is enabled

Both the signal thread (via sigwait()) and the cpu thread (via
a normal signal handler) were attempting to catch SIG_IPI.

This resulted in random freezes under Darwin.

This patch separates SIG_IPI from the rest of the signals handled
by the signal thread, because it is independently caught by the cpu
thread.

Signed-off-by: Alexandre Raymond <cerbere@gmail.com>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoFix signal handling when io-thread is disabled
Alexandre Raymond [Tue, 14 Jun 2011 14:05:36 +0000 (10:05 -0400)]
Fix signal handling when io-thread is disabled

Changes since v1:
- take pthread_sigmask() out of the ifdef as it is now common
to both parts.

This fix effectively blocks, in the main thread, the signals handled
by signalfd or the compatibility signal thread.

This way, such signals are received synchronously in the main thread
through sigfd_handler() instead of triggering the signal handler
directly, asynchronously.

Signed-off-by: Alexandre Raymond <cerbere@gmail.com>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agotcg/README: Expand advice on number of TCG ops per target insn
Peter Maydell [Wed, 22 Jun 2011 14:40:06 +0000 (15:40 +0100)]
tcg/README: Expand advice on number of TCG ops per target insn

Expand the note on the number of TCG ops generated per target insn,
to be clearer about the range of applicability of the 20 op rule
of thumb. Also add a note about the hard MAX_OP_PER_INSTR limit.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoset ELF_HWCAP for SPARC and SPARC64
Artyom Tarasenko [Thu, 14 Jul 2011 17:37:06 +0000 (19:37 +0200)]
set ELF_HWCAP for SPARC and SPARC64

setting ELF_HWCAP fixes dynamic library loading for Linux/sparc64
This patch allows loading busybox from Debian 6 initrd

Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSparc: fix FPU and AM enable checks for translation
Blue Swirl [Thu, 14 Jul 2011 17:30:43 +0000 (17:30 +0000)]
Sparc: fix FPU and AM enable checks for translation

Translation used incorrectly CPUState fields directly to check
for FPU enable state and 32 bit address masking on Sparc64.

Fix by using TB flags instead.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC64: C99 comment fix for block-transfer ASIs
Tsuneo Saito [Thu, 14 Jul 2011 09:41:43 +0000 (18:41 +0900)]
SPARC64: C99 comment fix for block-transfer ASIs

Fixed C99 comments on block-tranfer ASIs.

Signed-off-by: Tsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC64: Add JPS1 ASI_BLK_AIU[PS]L ASIs for ldfa and stfa
Tsuneo Saito [Thu, 14 Jul 2011 09:41:42 +0000 (18:41 +0900)]
SPARC64: Add JPS1 ASI_BLK_AIU[PS]L ASIs for ldfa and stfa

Support JPS1 little endian block transfer ASIs.

Signed-off-by: Tsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC64: Add UA2007 ASI_BLK_AIU[PS]L? ASIs for stfa
Tsuneo Saito [Thu, 14 Jul 2011 09:41:41 +0000 (18:41 +0900)]
SPARC64: Add UA2007 ASI_BLK_AIU[PS]L? ASIs for stfa

Support UA2007 block store ASIs for stfa instructions.

Signed-off-by: Tsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC64: Add UA2007 ASI_BLK_AIU[PS]L? ASIs for ldfa
Tsuneo Saito [Thu, 14 Jul 2011 09:41:40 +0000 (18:41 +0900)]
SPARC64: Add UA2007 ASI_BLK_AIU[PS]L? ASIs for ldfa

Support UA2007 block load ASIs for ldfa instructions.

Signed-off-by: Tsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC64: fp_disabled checks on stfa/stdfa/stqfa
Tsuneo Saito [Thu, 14 Jul 2011 09:41:39 +0000 (18:41 +0900)]
SPARC64: fp_disabled checks on stfa/stdfa/stqfa

stfa/stdfa/stqfa instructions should raise fp_disabled exceptions
if %pstate.PEF==0 or %fprs.FEF==0.

Signed-off-by: Tsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC64: Implement stfa/stdfa/stqfa instrcutions properly
Tsuneo Saito [Thu, 14 Jul 2011 09:41:38 +0000 (18:41 +0900)]
SPARC64: Implement stfa/stdfa/stqfa instrcutions properly

This patch implements sparcv9 stfa/stdfa/stqfa instructions
with non block-store ASIs.

Signed-off-by: Tsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC64: fp_disabled checks on ldfa/lddfa/ldqfa
Tsuneo Saito [Thu, 14 Jul 2011 09:41:37 +0000 (18:41 +0900)]
SPARC64: fp_disabled checks on ldfa/lddfa/ldqfa

ldfa/lddfa/ldqfa instructions should raise fp_disabled exceptions
if %pstate.PEF==0 or %fprs.FEF==0.

Signed-off-by: Tsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSPARC64: Implement ldfa/lddfa/ldqfa instructions properly
Tsuneo Saito [Thu, 14 Jul 2011 09:41:36 +0000 (18:41 +0900)]
SPARC64: Implement ldfa/lddfa/ldqfa instructions properly

This patch implements sparcv9 ldfa/lddfa/ldqfa instructions
with non block-load ASIs.

Signed-off-by: Tsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoos-posix: set groups properly for -runas
Stefan Hajnoczi [Sat, 9 Jul 2011 09:22:07 +0000 (10:22 +0100)]
os-posix: set groups properly for -runas

Andrew Griffiths reports that -runas does not set supplementary group
IDs.  This means that gid 0 (root) is not dropped when switching to an
unprivileged user.

Add an initgroups(3) call to use the -runas user's /etc/groups
membership to update the supplementary group IDs.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoesp: cancel current request only if some request is in flight
Hervé Poussineau [Sat, 9 Jul 2011 14:44:41 +0000 (16:44 +0200)]
esp: cancel current request only if some request is in flight

This bug was introduced in 94d3f98a3f3caddd7875f9a11776daeb84962a7b:
scsi_cancel_io was checking if some request was pending before trying
to cancel it, while scsi_req_cancel always cancels the request.

This may lead to a crash of Qemu due to dereferencing a NULL pointer,
as exhibited by NetBSD 5.1 installer on MIPS Magnum emulation.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agotarget-alpha, target-ppc: Remove unnecessary setjmp.h include
Peter Maydell [Mon, 4 Jul 2011 21:02:46 +0000 (22:02 +0100)]
target-alpha, target-ppc: Remove unnecessary setjmp.h include

Remove the include of setjmp.h from the cpu.h of target-alpha
and target-ppc. This is unnecessary because cpu-defs.h already
includes this header; this change brings these two targets
into line with all the rest.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoRemove unneeded setjmp.h (fix compilation on Debian "lenny")
Stefan Weil [Mon, 4 Jul 2011 18:52:38 +0000 (20:52 +0200)]
Remove unneeded setjmp.h (fix compilation on Debian "lenny")

Some versions of png.h cannot be included after setjmp.h,
even when PNG_SKIP_SETJMP_CHECK was defined.

setjmp.h was included from qemu-common.h and is not needed there.
Removing the include statement fixes compilation of ui/vnc-enc-tight.c
with CONFIG_VNC_PNG defined.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agotcg: Reload local variables after return from longjmp
Jan Kiszka [Sat, 2 Jul 2011 07:50:51 +0000 (09:50 +0200)]
tcg: Reload local variables after return from longjmp

Recent compilers look deep into cpu_exec, find longjmp as a noreturn
function and decide to smash some stack variables as they won't be used
again. This may lead to env becoming invalid after return from setjmp,
causing crashes. Fix it by reloading env from cpu_single_env in that
case.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoexec-all.h: Make MAX_OP_PER_INSTR large enough for target-arm's uses
Peter Maydell [Wed, 22 Jun 2011 14:16:32 +0000 (15:16 +0100)]
exec-all.h: Make MAX_OP_PER_INSTR large enough for target-arm's uses

The target-arm frontend's worst-case TCG ops per instr is 194 (and in
general many of the "load multiple registers" ARM instructions generate
more than 100 TCG ops). Raise MAX_OP_PER_INSTR accordingly to avoid
possible buffer overruns.

Since it doesn't make any sense for the "64 bit guest on 32 bit host"
case to have a smaller limit than the normal case, we collapse the
two cases back into each other again.

(This increase costs us about 14K in extra static buffer space and
21K of extra margin at the end of a 32MB codegen buffer.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoexec.c: Fix calculation of code_gen_buffer_max_size
Peter Maydell [Wed, 22 Jun 2011 10:58:25 +0000 (11:58 +0100)]
exec.c: Fix calculation of code_gen_buffer_max_size

When calculating the point at which we should not try to put another
TB into the code gen buffer, we have to allow not just for OPC_MAX_SIZE
but OPC_BUF_SIZE. This is because the target translate.c will only
stop when an instruction has put it past the OPC_MAX_SIZE limit, so
we have to include the MAX_OP_PER_INSTR margin which that final insn
might have used.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agospapr: use specific endian ld/st_phys
Alexander Graf [Tue, 5 Jul 2011 16:28:10 +0000 (18:28 +0200)]
spapr: use specific endian ld/st_phys

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agos390-virtio: use specific endian ld/st_phys
Alexander Graf [Tue, 5 Jul 2011 16:28:09 +0000 (18:28 +0200)]
s390-virtio: use specific endian ld/st_phys

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoppc405_uc: use specific endian ld/st_phys
Alexander Graf [Tue, 5 Jul 2011 16:28:08 +0000 (18:28 +0200)]
ppc405_uc: use specific endian ld/st_phys

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agopl080: use specific endian ld/st_phys
Alexander Graf [Tue, 5 Jul 2011 16:28:07 +0000 (18:28 +0200)]
pl080: use specific endian ld/st_phys

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agomsix: use specific endian ld/st_phys
Alexander Graf [Tue, 5 Jul 2011 16:28:06 +0000 (18:28 +0200)]
msix: use specific endian ld/st_phys

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agomsi: use specific endian ld/st_phys
Alexander Graf [Tue, 5 Jul 2011 16:28:05 +0000 (18:28 +0200)]
msi: use specific endian ld/st_phys

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agointel-hda: use specific endian ld/st_phys
Alexander Graf [Tue, 5 Jul 2011 16:28:04 +0000 (18:28 +0200)]
intel-hda: use specific endian ld/st_phys

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agohpet: use specific endian ld/st_phys
Alexander Graf [Tue, 5 Jul 2011 16:28:03 +0000 (18:28 +0200)]
hpet: use specific endian ld/st_phys

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoexec: add endian specific phys ld/st functions
Alexander Graf [Wed, 6 Jul 2011 07:09:23 +0000 (09:09 +0200)]
exec: add endian specific phys ld/st functions

Device code some times needs to access physical memory and does that
through the ld./st._phys functions. However, these are the exact same
functions that the CPU uses to access memory, which means they will
be endianness swapped depending on the target CPU.

However, devices don't know about the CPU's endianness, but instead
access memory directly using their own interface to the memory bus,
so they need some way to read data with their native endianness.

This patch adds _le and _be functions to ld./st._phys.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoide: Initialise buffers with zeros
Kevin Wolf [Mon, 4 Jul 2011 12:43:58 +0000 (14:43 +0200)]
ide: Initialise buffers with zeros

Just in case there's still a way how a guest can read out buffers when it's not
supposed to, let's zero the buffers during initialisation so that we don't leak
information to the guest.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
13 years agoide: Ignore reads during PIO in and writes during PIO out
Kevin Wolf [Mon, 4 Jul 2011 12:07:50 +0000 (14:07 +0200)]
ide: Ignore reads during PIO in and writes during PIO out

This fixes https://bugs.launchpad.net/qemu/+bug/786209:

    When the DRQ_STAT bit is set, the IDE core permits both data reads
    and data writes, regardless of whether the current transfer was
    initiated as a read or write.

    This potentially leaks uninitialized host memory into the guest,
    if, before doing anything else to an IDE device, the guest begins a
    write transaction (e.g. WIN_WRITE), but then *reads* from the IO
    port instead of writing to it.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
13 years agoblock: drive_init(): Improve CHS setting error message
Luiz Capitulino [Fri, 1 Jul 2011 13:46:13 +0000 (10:46 -0300)]
block: drive_init(): Improve CHS setting error message

The current message doesn't clearly communicate the error cause.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoblock: drive_init(): Simplify interface type setting
Luiz Capitulino [Fri, 1 Jul 2011 13:46:12 +0000 (10:46 -0300)]
block: drive_init(): Simplify interface type setting

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agovirtio-blk: Turn drive serial into a qdev property
Markus Armbruster [Mon, 20 Jun 2011 09:35:18 +0000 (11:35 +0200)]
virtio-blk: Turn drive serial into a qdev property

It needs to be a qdev property, because it belongs to the drive's
guest part.  Precedence: commit a0fef654 and 6ced55a5.

Bonus: info qtree now shows the serial number.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoblock/raw-posix: Linux compat-ioctl warning workaround
Johannes Stezenbach [Wed, 29 Jun 2011 14:25:17 +0000 (16:25 +0200)]
block/raw-posix: Linux compat-ioctl warning workaround

On Linux x86_64 host with 32bit userspace, running
qemu or even just "qemu-img create -f qcow2 some.img 1G"
causes a kernel warning:

ioctl32(qemu-img:5296): Unknown cmd fd(3) cmd(00005326){t:'S';sz:0} arg(7fffffff) on some.img
ioctl32(qemu-img:5296): Unknown cmd fd(3) cmd(801c0204){t:02;sz:28} arg(fff77350) on some.img

ioctl 00005326 is CDROM_DRIVE_STATUS,
ioctl 801c0204 is FDGETPRM.

The warning appears because the Linux compat-ioctl handler for these
ioctls only applies to block devices, while qemu also uses the ioctls on
plain files.  Work around by calling fstat() the ensure the ioctls are
only used on block devices.

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoqemu-img: Add cache command line option
Federico Simoncelli [Mon, 20 Jun 2011 16:48:19 +0000 (12:48 -0400)]
qemu-img: Add cache command line option

qemu-img currently writes disk images using writeback and filling
up the cache buffers which are then flushed by the kernel preventing
other processes from accessing the storage.
This is particularly bad in cluster environments where time-based
algorithms might be in place and accessing the storage within
certain timeouts is critical.
This patch adds the option to choose a cache method when writing
disk images.

Signed-off-by: Federico Simoncelli <fsimonce@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agoDocumentation: Remove outdated host_device note
Kevin Wolf [Tue, 28 Jun 2011 11:41:07 +0000 (13:41 +0200)]
Documentation: Remove outdated host_device note

People shouldn't explicitly specify host_device any more. raw is doing the
Right Thing.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
13 years agopxa2xx_lcd: add proper rotation support
Vasily Khoruzhick [Fri, 17 Jun 2011 10:04:36 +0000 (13:04 +0300)]
pxa2xx_lcd: add proper rotation support

Until now, pxa2xx_lcd only supported 90deg rotation, but
some machines (for example Zipit Z2) needs 270deg rotation.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
13 years agoarm: Add const attribute to some arm_boot_info pointers
Stefan Weil [Thu, 23 Jun 2011 15:53:48 +0000 (17:53 +0200)]
arm: Add const attribute to some arm_boot_info pointers

Parameter 'info' is const, so add the missing attribute.

v2:
Add 'const' to the local variable info in do_cpu_reset() and to
the boot_info field in CPUARMState (suggested by Peter Maydell).

Cc: Andrzej Zaborowski <balrogg@gmail.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
13 years agoesp: correctly fill bus id with requested lun
Hervé Poussineau [Sat, 2 Jul 2011 15:23:00 +0000 (17:23 +0200)]
esp: correctly fill bus id with requested lun

This bug showed up after 1455084ea2c48abf23c4e4e15e378ee43457f381, and
may be seen only on operating systems *not* using DMA to give commands
to SCSI adapter.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoTCG/PPC: use stack for TCG temps
Blue Swirl [Sat, 28 May 2011 08:27:20 +0000 (08:27 +0000)]
TCG/PPC: use stack for TCG temps

Use stack instead of temp_buf array in CPUState for TCG temps.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agofix cpu_cc_src and cpu_cc_src2 corruption in udivx and sdivx
Artyom Tarasenko [Fri, 1 Jul 2011 19:28:42 +0000 (21:28 +0200)]
fix cpu_cc_src and cpu_cc_src2 corruption in udivx and sdivx

udivx and sdvix don't modify condition flags, so they shall not
overwrite cpu_cc_*

Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoMerge branch 'ppc-next' of git://repo.or.cz/qemu/agraf
Blue Swirl [Fri, 1 Jul 2011 21:12:50 +0000 (21:12 +0000)]
Merge branch 'ppc-next' of git://repo.or.cz/qemu/agraf

* 'ppc-next' of git://repo.or.cz/qemu/agraf:
  PPC: move TLBs to their own arrays
  PPC: 440: Use 440 style MMU as default, so Qemu knows the MMU type
  PPC: E500: Use MAS registers instead of internal TLB representation
  PPC: Only set lower 32bits with mtmsr
  PPC: update openbios firmware
  PPC: mpc8544ds: Add hypervisor node
  PPC: calculate kernel,initrd,cmdline locations dynamically
  target-ppc: Handle memory-forced I/O controller access
  PPC: E500: Implement reboot controller

13 years agotcg-hppa: Support deposit opcode.
Richard Henderson [Mon, 20 Jun 2011 22:10:49 +0000 (15:10 -0700)]
tcg-hppa: Support deposit opcode.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agohppa: Fix printf warnings in hppa-dis.c.
Richard Henderson [Mon, 20 Jun 2011 22:02:29 +0000 (15:02 -0700)]
hppa: Fix printf warnings in hppa-dis.c.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoTCG/HPPA: use stack for TCG temps
Blue Swirl [Sat, 28 May 2011 07:55:47 +0000 (07:55 +0000)]
TCG/HPPA: use stack for TCG temps

Use stack instead of temp_buf array in CPUState for TCG temps.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoTCG/HPPA: use TCG_REG_CALL_STACK instead of TCG_REG_SP
Blue Swirl [Sat, 28 May 2011 07:49:35 +0000 (07:49 +0000)]
TCG/HPPA: use TCG_REG_CALL_STACK instead of TCG_REG_SP

Use TCG_REG_CALL_STACK instead of TCG_REG_SP for consistency.

Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoetraxfs-ser: Correct default value for RW_REC_CTRL
Edgar E. Iglesias [Thu, 30 Jun 2011 08:52:22 +0000 (10:52 +0200)]
etraxfs-ser: Correct default value for RW_REC_CTRL

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agouser: Fix -d debug logging for usermode emulation
Edgar E. Iglesias [Tue, 28 Jun 2011 18:57:09 +0000 (20:57 +0200)]
user: Fix -d debug logging for usermode emulation

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agocris: Handle opcode zero
Edgar E. Iglesias [Tue, 28 Jun 2011 18:52:37 +0000 (20:52 +0200)]
cris: Handle opcode zero

It's a valid branch pc + 2.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
13 years agotcg/ppc64: Remove tcg_out_addi
malc [Mon, 27 Jun 2011 22:27:52 +0000 (02:27 +0400)]
tcg/ppc64: Remove tcg_out_addi

The only user (within tcg.c) was removed

Signed-off-by: malc <av1474@comtv.ru>
13 years agotcg/ppc: Remove tcg_out_addi
malc [Mon, 27 Jun 2011 22:26:06 +0000 (02:26 +0400)]
tcg/ppc: Remove tcg_out_addi

The only user (within tcg.c) was removed

Signed-off-by: malc <av1474@comtv.ru>
13 years agoMerge remote-tracking branch 'kraxel/usb.17' into staging
Anthony Liguori [Mon, 27 Jun 2011 19:59:08 +0000 (14:59 -0500)]
Merge remote-tracking branch 'kraxel/usb.17' into staging

13 years agoMerge remote-tracking branch 'amit/for-anthony' into staging
Anthony Liguori [Mon, 27 Jun 2011 16:27:15 +0000 (11:27 -0500)]
Merge remote-tracking branch 'amit/for-anthony' into staging

13 years agoMerge remote-tracking branch 'riku/linux-user-for-upstream' into staging
Anthony Liguori [Mon, 27 Jun 2011 16:26:47 +0000 (11:26 -0500)]
Merge remote-tracking branch 'riku/linux-user-for-upstream' into staging

13 years agoMerge remote-tracking branch 'stefanha/trivial-patches' into staging
Anthony Liguori [Mon, 27 Jun 2011 16:25:23 +0000 (11:25 -0500)]
Merge remote-tracking branch 'stefanha/trivial-patches' into staging

13 years agovnc: Fix compilation with --enable-vnc-png
Stefan Weil [Sun, 26 Jun 2011 19:29:13 +0000 (19:29 +0000)]
vnc: Fix compilation with --enable-vnc-png

Commit f26e428da505709ec03b2ed2c9eb3db82b30bd7b fixed compilation
with --enable-vnc-png, but broke it with --enable-vnc-png.

The breakage is caused by pngconfig.h which checks whether
setjmp.h was already included and fails because qemu-common.h
includes setjmp.h.

The check is disabled by defining PNG_SKIP_SETJMP_CHECK.

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
13 years agovirtio-serial: Fix segfault on guest boot
Luiz Capitulino [Fri, 17 Jun 2011 18:58:08 +0000 (15:58 -0300)]
virtio-serial: Fix segfault on guest boot

If I start qemu with:

  # qemu -hda disks/test.img -enable-kvm -m 1G -snapshot \
         -device virtio-serial \
         -chardev socket,host=localhost,port=1234,server,nowait,id=foo \
         -device virtserialport,chardev=foo,name=org.qemu.guest_agent

I get a segfault when booting a Fedora 14 guest. The backtrace says:

  Program terminated with signal 11, Segmentation fault.
    #0  0x0000000000420850 in handle_control_message (vser=0x3732bd0, buf=0x2c173e0, len=8) at /home/lcapitulino/src/qmp-unstable/hw/virtio-serial-bus.c:335
    335     info = DO_UPCAST(VirtIOSerialPortInfo, qdev, port->dev.info);

What's happening is VIRTIO_CONSOLE_DEVICE_READY is a message for the
whole device, not for an individual port. So port is NULL. This bug was
introduced by commit a15bb0d6a981de749452a5180fc8084d625671da.

This commit fixes that by making the port returned by find_port_by_id()
be used only by the VIRTIO_CONSOLE_PORT_READY and
VIRTIO_CONSOLE_PORT_OPEN messages.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
13 years agoFix MinGW compilation when --enable-vnc-jpeg is specified
Roy Tam [Sat, 18 Jun 2011 05:13:39 +0000 (13:13 +0800)]
Fix MinGW compilation when --enable-vnc-jpeg is specified

Fix conflicting types for 'INT32' in basetsd.h and jmorecfg.h by
including qemu-common.h first.

Signed-off-by: Roy Tam <roytam@gmail.com>
Acked-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoTCG/Sparc64: use stack for TCG temps
Blue Swirl [Sat, 14 May 2011 17:06:56 +0000 (17:06 +0000)]
TCG/Sparc64: use stack for TCG temps

Use stack instead of temp_buf array in CPUState for TCG temps.

On Sparc64, stack pointer is not aligned but there is a fixed bias of 2047,
so don't try to enforce alignment.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoTCG/x86: use stack for TCG temps
Blue Swirl [Sat, 14 May 2011 13:14:45 +0000 (13:14 +0000)]
TCG/x86: use stack for TCG temps

Use stack instead of temp_buf array in CPUState for TCG
temps.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoTCG/x86: use TCG_REG_CALL_STACK instead of TCG_REG_ESP
Blue Swirl [Sat, 28 May 2011 06:51:52 +0000 (06:51 +0000)]
TCG/x86: use TCG_REG_CALL_STACK instead of TCG_REG_ESP

Except for specific cases where the use of %esp changes the encoding of
the instruction, it's cleaner to use TCG_REG_CALL_STACK instead of
TCG_REG_ESP.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoTCG: remove broken stack allocation for call arguments
Blue Swirl [Sat, 28 May 2011 07:13:05 +0000 (07:13 +0000)]
TCG: remove broken stack allocation for call arguments

The code for stack allocation for call arguments is way too simplistic
to actually work on targets with non-trivial stack allocation policies,
e.g. ppc64. We've also already allocated TCG_STATIC_CALL_ARGS_SIZE worth
of stack for calls which should be well more than any helper needs.

Remove broken dynamic stack allocation code and replace it with an assert.
Should dynamic stack allocation ever be needed again, target specific
functions should be added.

Thanks to Richard Henderson for the analysis.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoTCG: fix negative frame offset calculations
Blue Swirl [Sat, 14 May 2011 14:03:22 +0000 (14:03 +0000)]
TCG: fix negative frame offset calculations

size_t is unsigned, so the frame offset calculations can be incorrect for
negative offsets.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoDelegate setup of TCG temporaries to targets
Blue Swirl [Sat, 14 May 2011 12:58:04 +0000 (12:58 +0000)]
Delegate setup of TCG temporaries to targets

Delegate TCG temp_buf setup to targets, so that they can use a stack
frame later instead.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agocpu-exec.c: avoid AREG0 use
Blue Swirl [Sun, 15 May 2011 16:03:25 +0000 (16:03 +0000)]
cpu-exec.c: avoid AREG0 use

Make functions take a parameter for CPUState instead of relying
on global env. Pass CPUState pointer to TCG prologue, which moves
it to AREG0.

Thanks to Peter Maydell and Laurent Desnogues for the ARM prologue
change.

Revert the hacks to avoid AREG0 use on Sparc hosts.

Move cpu_has_work() and cpu_pc_from_tb() from exec.h to cpu.h.

Compile the file without HELPER_CFLAGS.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoRemove exec-all.h include directives
Blue Swirl [Sun, 19 Jun 2011 20:38:22 +0000 (20:38 +0000)]
Remove exec-all.h include directives

Most exec-all.h include directives are now useless, remove them.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoMove cpu_has_work and cpu_pc_from_tb to cpu.h
Blue Swirl [Sat, 21 May 2011 07:10:23 +0000 (07:10 +0000)]
Move cpu_has_work and cpu_pc_from_tb to cpu.h

Move functions cpu_has_work() and cpu_pc_from_tb() from exec.h to cpu.h. This is
needed by later patches.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoexec.h: fix coding style and change cpu_has_work to return bool
Blue Swirl [Sat, 21 May 2011 12:16:05 +0000 (12:16 +0000)]
exec.h: fix coding style and change cpu_has_work to return bool

Before the next patch, fix coding style of the areas affected.

Change the type of the return value from cpu_has_work() and
qemu_cpu_has_work() to bool.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agocpu-exec: unify do_interrupt call
Blue Swirl [Sat, 21 May 2011 08:17:08 +0000 (08:17 +0000)]
cpu-exec: unify do_interrupt call

Now that all targets use common function signature for do_interrupt(), there is no
need for the #ifdeffery anymore.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agom68k: use caller supplied CPUState for interrupt related stuff
Blue Swirl [Sat, 21 May 2011 07:55:24 +0000 (07:55 +0000)]
m68k: use caller supplied CPUState for interrupt related stuff

Pass CPUState to do_interrupt(). This is needed by later patches.

It would be cleaner to move the function to helper.c, but there are
a few dependencies between do_interrupt() and other functions.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agox86: use caller supplied CPUState for interrupt related stuff
Blue Swirl [Mon, 16 May 2011 19:38:48 +0000 (19:38 +0000)]
x86: use caller supplied CPUState for interrupt related stuff

Several x86 specific functions are called from cpu-exec.c with the
assumption that global env register is valid. This will be changed
later, so make the functions use caller supplied CPUState parameter.

It would be cleaner to move the functions to helper.c, but there are
quite a lot of dependencies between do_interrupt() and other functions.

Add helpers for svm_check_intercept() and cpu_cc_compute_all() instead
of calling the helper (which uses global env, AREG0) directly.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agosparc: move do_interrupt to helper.c
Blue Swirl [Sun, 15 May 2011 16:11:04 +0000 (16:11 +0000)]
sparc: move do_interrupt to helper.c

do_interrupt() was mixing CPUState pointer passed from caller
and global env (AREG0).

Fix by moving the function to helper.c. Introduce a helper for calling
change_pstate() safely from outside of execution context.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agosparc: fix coding style of the area to be moved
Blue Swirl [Sat, 21 May 2011 11:41:50 +0000 (11:41 +0000)]
sparc: fix coding style of the area to be moved

Before the next patch, fix coding style of the areas affected.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agocpu_loop_exit: avoid using AREG0
Blue Swirl [Sat, 14 May 2011 12:52:35 +0000 (12:52 +0000)]
cpu_loop_exit: avoid using AREG0

Make cpu_loop_exit() take a parameter for CPUState instead of relying
on global env.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoSparc32: dummy implementation of MXCC MMU breakpoint registers
Blue Swirl [Sat, 18 Jun 2011 20:27:05 +0000 (20:27 +0000)]
Sparc32: dummy implementation of MXCC MMU breakpoint registers

Add dummy registers for SuperSPARC MXCC MMU counter breakpoints, save
and load all MXCC registers.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoFix fallouts from Linux header inclusion
Jan Kiszka [Thu, 23 Jun 2011 08:05:12 +0000 (10:05 +0200)]
Fix fallouts from Linux header inclusion

This is an all-in-one fix for the smaller and bigger mistakes of the
build system changes for accompanied Linux headers:
 - only enable KVM and vhost on Linux hosts
 - fix powerpc asm header symlink
 - do not use Linux headers on non-Linux hosts
 - fix kvmclock for !CONFIG_KVM
 - fix s390 build on non-Linux hosts

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Tested-by: Andreas Färber <andreas.faerber@web.de>
Tested-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
13 years agoqemu-kvm: fix pulseaudio detection in configure
Marc-Antoine Perennou [Fri, 29 Apr 2011 05:59:19 +0000 (05:59 +0000)]
qemu-kvm: fix pulseaudio detection in configure

pulse/simple.h does not include stdlib.h
We cannot use NULL since it may not be defined
Use 0 instead

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agoexec: last_first_tb was only used in !ONLY_USER case
Juan Quintela [Thu, 2 Jun 2011 01:53:44 +0000 (01:53 +0000)]
exec: last_first_tb was only used in !ONLY_USER case

Once there, use a better variable name.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agow32: Remove redundant definitions of PRI*64
Stefan Weil [Fri, 24 Jun 2011 10:15:49 +0000 (12:15 +0200)]
w32: Remove redundant definitions of PRI*64

The PRI*64 macros are defined in MinGW's inttypes.h since 2002,
so they are not needed in qemu-common.h (which includes inttypes.h).

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agoDo not include compatfd for WIN32
Jan Kiszka [Thu, 23 Jun 2011 08:15:55 +0000 (10:15 +0200)]
Do not include compatfd for WIN32

sigset_t, used by that header, is not available in mingw32 environments.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agoFix comment typos in hw/armv7m.c
Matthew Fernandez [Thu, 23 Jun 2011 00:59:26 +0000 (10:59 +1000)]
Fix comment typos in hw/armv7m.c

Fix a couple of typos in comments.

Signed-off-by: Matthew Fernandez <matthew.fernandez@gmail.com>
Acked-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agoMAINTAINERS: Fix typo in email address
Peter Maydell [Wed, 22 Jun 2011 14:45:01 +0000 (15:45 +0100)]
MAINTAINERS: Fix typo in email address

Fix a typo in one of the copies of Aurelien Jarno's email address.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agoblockdev: Put space after comma in error message
Markus Armbruster [Wed, 22 Jun 2011 12:03:57 +0000 (14:03 +0200)]
blockdev: Put space after comma in error message

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agoSpell "unkown" correctly in error_report() arguments
Markus Armbruster [Wed, 22 Jun 2011 12:03:56 +0000 (14:03 +0200)]
Spell "unkown" correctly in error_report() arguments

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agoqemu-img: Don't prepend qemu-img to error messages twice.
Markus Armbruster [Wed, 22 Jun 2011 12:03:55 +0000 (14:03 +0200)]
qemu-img: Don't prepend qemu-img to error messages twice.

error_report() prepends the location already.  Example:

$ qemu-img convert -6
qemu-img: qemu-img: option -6 is deprecated, please use '-o compat6' instead!

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agoStrip trailing '\n' from error_report()'s first argument
Markus Armbruster [Wed, 22 Jun 2011 12:03:54 +0000 (14:03 +0200)]
Strip trailing '\n' from error_report()'s first argument

error_report() prepends location, and appends a newline.  The message
constructed from the arguments should not contain a newline.  Fix the
obvious offenders.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agosheepdog: qemu_bh_new() can't return null pointer, drop check
Markus Armbruster [Wed, 22 Jun 2011 12:03:53 +0000 (14:03 +0200)]
sheepdog: qemu_bh_new() can't return null pointer, drop check

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agoAlign dummy display to fixed-size active console
Jan Kiszka [Sun, 19 Jun 2011 09:53:02 +0000 (11:53 +0200)]
Align dummy display to fixed-size active console

This fixes e.g. '-vga none -monitor vc:120Cx50C'.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agoconfigure: Don't create symlinks to nonexistent targets
Peter Maydell [Fri, 3 Jun 2011 16:10:40 +0000 (17:10 +0100)]
configure: Don't create symlinks to nonexistent targets

When we create the symlinks to source tree files, don't create them
if the file is not actually present in the source tree; this will
happen if the file is in a git submodule that wasn't checked out.

This also avoids the odd effect where an in-source-tree configure
will end up creating the missing file as a symlink to itself.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
13 years agousb: ignore USB_DT_DEBUG
Gerd Hoffmann [Thu, 23 Jun 2011 15:15:43 +0000 (17:15 +0200)]
usb: ignore USB_DT_DEBUG

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
13 years agousb-storage: Turn drive serial into a qdev property usb-storage.serial
Markus Armbruster [Fri, 17 Jun 2011 08:52:36 +0000 (10:52 +0200)]
usb-storage: Turn drive serial into a qdev property usb-storage.serial

It needs to be a qdev property, because it belongs to the drive's
guest part.  Precedence: commit a0fef654 and 6ced55a5.

Bonus: info qtree now shows the serial number.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
13 years agocoreaudio: Fix OSStatus format specifier
Andreas Färber [Thu, 23 Jun 2011 14:24:45 +0000 (16:24 +0200)]
coreaudio: Fix OSStatus format specifier

OSStatus type is defined as SInt32. That's signed int on __LP64__ and
signed long otherwise.
Since it is an explicit 32-bit-width type, cast to corresponsing POSIX type
and use PRId32 format specifier. This avoids a warning on ppc64.

Cc: malc <av1474@comtv.ru>
Signed-off-by: Andreas Faerber <andreas.faerber@web.de>
Signed-off-by: malc <av1474@comtv.ru>
13 years agocoreaudio: Avoid formatting UInt32 type
Andreas Färber [Thu, 23 Jun 2011 14:24:46 +0000 (16:24 +0200)]
coreaudio: Avoid formatting UInt32 type

coreaudioVoiceOut's audioDevicePropertyBufferFrameSize is defined as UInt32
and is being used by reference for AudioDevice{Get,Set}Property().
UInt32 is unsigned int on __LP64__ but unsigned long otherwise.

Cast to POSIX type and use PRIu32 format specifier to hide the details.
This avoids a warning on ppc64.

Cc: malc <av1474@comtv.ru>
Signed-off-by: Andreas Faerber <andreas.faerber@web.de>
Signed-off-by: malc <av1474@comtv.ru>
13 years agohw/usb-ohci.c: Fix handling of remote wakeup corner cases
Peter Maydell [Wed, 15 Jun 2011 17:22:35 +0000 (18:22 +0100)]
hw/usb-ohci.c: Fix handling of remote wakeup corner cases

Correct a number of minor errors in the OHCI wakeup implementation:
 * when the port is suspended but the controller is not, raise RHSC
 * when the controller is suspended but the port is not, raise RD
 * when the controller is suspended, move it to resume state

These fix some edge cases where a USB device might not successfully get
the attention of the guest OS if it tried to do so at the wrong time.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
13 years agousb-bus: Don't allow speed mismatch while attaching devices
Hans de Goede [Fri, 27 May 2011 12:50:39 +0000 (14:50 +0200)]
usb-bus: Don't allow speed mismatch while attaching devices

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
13 years agousb-linux: allow "compatible" high speed devices to connect at fullspeed
Hans de Goede [Mon, 30 May 2011 09:40:45 +0000 (11:40 +0200)]
usb-linux: allow "compatible" high speed devices to connect at fullspeed

Some usb2 highspeed devices, like usb-msd devices, work fine when redirected
to a usb1 virtual controller. Allow this to avoid the new speedhecks causing
regressions for users who do not enable the new experimental ehci code.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
13 years agousb: Add a speedmask to devices
Hans de Goede [Fri, 27 May 2011 12:27:18 +0000 (14:27 +0200)]
usb: Add a speedmask to devices

This is used to indicate at which speed[s] the device can operate,
so that this can be checked to match the ports capabilities when it gets
attached to a bus.

Note that currently all usb1 emulated device claim to be fullspeed, this
seems to not cause any problems, but still seems wrong, because with real
hardware keyboards, mice and tablets usually are lo-speed, so reporting these
as fullspeed devices seems wrong.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
13 years agousb: Proper error propagation for usb_device_attach errors
Hans de Goede [Fri, 27 May 2011 17:05:15 +0000 (19:05 +0200)]
usb: Proper error propagation for usb_device_attach errors

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
13 years agousb-bus: Don't allow attaching a device to a bus with no free ports
Hans de Goede [Fri, 27 May 2011 12:46:27 +0000 (14:46 +0200)]
usb-bus: Don't allow attaching a device to a bus with no free ports

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>