sdk/emulator/qemu.git
10 years agotarget-mips/translate.c: Add ifdef guard around check_mips64()
Peter Maydell [Sun, 14 Sep 2014 19:45:35 +0000 (20:45 +0100)]
target-mips/translate.c: Add ifdef guard around check_mips64()

The function check_mips64() is only used if TARGET_MIPS64 is defined;
add an ifdef guard to its definition to avoid warnings about it being
unused in other configurations.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
10 years agotarget-mips/op_helper.c: Remove unused do_lbu() function
Peter Maydell [Sun, 14 Sep 2014 19:45:38 +0000 (20:45 +0100)]
target-mips/op_helper.c: Remove unused do_lbu() function

The do_lbu() function defined by the expansion of HELPER_LD() is
never used, so don't define it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
10 years agotarget-mips/dsp_helper.c: Remove unused function get_DSPControl_24()
Peter Maydell [Sun, 14 Sep 2014 19:45:37 +0000 (20:45 +0100)]
target-mips/dsp_helper.c: Remove unused function get_DSPControl_24()

The function get_DSPControl_24() is unused; remove it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
10 years agotarget-mips: fix broken MIPS16 and microMIPS
Yongbok Kim [Tue, 1 Jul 2014 16:43:05 +0000 (17:43 +0100)]
target-mips: fix broken MIPS16 and microMIPS

Commit 240ce26a broke MIPS16 and microMIPS support as it didn't
care those branches and jumps don't have delay slot in
MIPS16 and microMIPS.

This patch introduces a new argument delayslot_size to the
gen_compute_branch() indicating size of delay slot {0, 2, 4}.
And the information is used to call handle_delay_slot() forcingly
when no delay slot is required.

There are some microMIPS branch and jump instructions that requires
exact size of instruction in the delay slot. For indicating
these instructions, MIPS_HFLAG_BDS_STRICT flag is introduced.

Those fictional branch opcodes defined to support MIPS16 and
microMIPS are no longer needed.

Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Tested-by: Jonas Gorski <jogo@openwrt.org>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
[leon.alrae@imgtec.com: cosmetic changes]
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
10 years agotarget-mips/translate.c: Update OPC_SYNCI
Dongxue Zhang [Tue, 29 Jul 2014 13:48:10 +0000 (21:48 +0800)]
target-mips/translate.c: Update OPC_SYNCI

Update OPC_SYNCI with BS_STOP, in order to handle the instructions which saved
in the same TB of the store instruction.

Signed-off-by: Dongxue Zhang <elta.era@gmail.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
[leon.alrae@imgtec.com: update microMIPS SYNCI as well]
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
10 years agotarget-mips: define a new generic CPU supporting MIPS64 Release 6 ISA
Leon Alrae [Fri, 27 Jun 2014 07:49:09 +0000 (08:49 +0100)]
target-mips: define a new generic CPU supporting MIPS64 Release 6 ISA

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
10 years agomips_malta: update malta's pseudo-bootloader - replace JR with JALR
Leon Alrae [Fri, 27 Jun 2014 07:49:08 +0000 (08:49 +0100)]
mips_malta: update malta's pseudo-bootloader - replace JR with JALR

JR has been removed in R6 and now this instruction will cause Reserved
Instruction Exception. Therefore use JALR with rd=0 which is equivalent to JR.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: remove JR, BLTZAL, BGEZAL and add NAL, BAL instructions
Yongbok Kim [Fri, 27 Jun 2014 07:49:08 +0000 (08:49 +0100)]
target-mips: remove JR, BLTZAL, BGEZAL and add NAL, BAL instructions

Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: do not allow Status.FR=0 mode in 64-bit FPU
Leon Alrae [Fri, 27 Jun 2014 07:49:07 +0000 (08:49 +0100)]
target-mips: do not allow Status.FR=0 mode in 64-bit FPU

Status.FR bit must be ignored on write and read as 1 when an implementation of
Release 6 of the Architecture in which a 64-bit floating point unit is
implemented.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
10 years agotarget-mips: add new Floating Point Comparison instructions
Yongbok Kim [Fri, 27 Jun 2014 07:49:07 +0000 (08:49 +0100)]
target-mips: add new Floating Point Comparison instructions

Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: add new Floating Point instructions
Leon Alrae [Fri, 27 Jun 2014 07:49:07 +0000 (08:49 +0100)]
target-mips: add new Floating Point instructions

In terms of encoding MIPS32R6 MIN.fmt, MAX.fmt, MINA.fmt, MAXA.fmt replaced
MIPS-3D RECIP1, RECIP2, RSQRT1, RSQRT2 instructions.

In R6 all Floating Point instructions are supposed to be IEEE-2008 compliant
i.e. FIR.HAS2008 always 1. However, QEMU softfloat for MIPS has not been
updated yet.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
10 years agosoftfloat: add functions corresponding to IEEE-2008 min/maxNumMag
Leon Alrae [Fri, 27 Jun 2014 07:49:06 +0000 (08:49 +0100)]
softfloat: add functions corresponding to IEEE-2008 min/maxNumMag

Add abs argument to the existing softfloat minmax() function and define
new float{32,64}_{min,max}nummag functions.

minnummag(x,y) returns x if |x| < |y|,
               returns y if |y| < |x|,
               otherwise minnum(x,y)

maxnummag(x,y) returns x if |x| > |y|,
               returns y if |y| > |x|,
               otherwise maxnum(x,y)

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: add AUI, LSA and PCREL instruction families
Leon Alrae [Fri, 27 Jun 2014 07:49:06 +0000 (08:49 +0100)]
target-mips: add AUI, LSA and PCREL instruction families

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
10 years agotarget-mips: add compact and CP1 branches
Yongbok Kim [Fri, 27 Jun 2014 07:49:05 +0000 (08:49 +0100)]
target-mips: add compact and CP1 branches

Introduce MIPS32R6 Compact Branch instructions which do not have delay slot -
they have forbidden slot instead. However, current implementation does not
support forbidden slot yet.

Add also BC1EQZ and BC1NEZ instructions.

Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
10 years agotarget-mips: add ALIGN, DALIGN, BITSWAP and DBITSWAP instructions
Yongbok Kim [Fri, 27 Jun 2014 07:49:05 +0000 (08:49 +0100)]
target-mips: add ALIGN, DALIGN, BITSWAP and DBITSWAP instructions

Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: Status.UX/SX/KX enable 32-bit address wrapping
Leon Alrae [Fri, 27 Jun 2014 07:49:04 +0000 (08:49 +0100)]
target-mips: Status.UX/SX/KX enable 32-bit address wrapping

In R6 the special behaviour for data references is also specified for Kernel
and Supervisor mode. Therefore MIPS_HFLAG_UX is replaced by generic
MIPS_HFLAG_AWRAP indicating enabled 32-bit address wrapping.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: move CLO, DCLO, CLZ, DCLZ, SDBBP and free special2 in R6
Leon Alrae [Fri, 27 Jun 2014 07:49:04 +0000 (08:49 +0100)]
target-mips: move CLO, DCLO, CLZ, DCLZ, SDBBP and free special2 in R6

Also consider OPC_SPIM instruction as deleted in R6 because it is overlaping
with MIPS32R6 SDBBP.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: redefine Integer Multiply and Divide instructions
Leon Alrae [Fri, 27 Jun 2014 07:49:03 +0000 (08:49 +0100)]
target-mips: redefine Integer Multiply and Divide instructions

Use "R6_" prefix in front of all new Multiply / Divide instructions for
easier differentiation between R6 and preR6.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: move PREF, CACHE, LLD and SCD instructions
Leon Alrae [Fri, 27 Jun 2014 07:49:03 +0000 (08:49 +0100)]
target-mips: move PREF, CACHE, LLD and SCD instructions

The encoding of PREF, CACHE, LLD and SCD instruction changed in MIPS32R6.
Additionally, the hint codes in PREF instruction greater than or
equal to 24 generate Reserved Instruction Exception.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: signal RI Exception on DSP and Loongson instructions
Leon Alrae [Fri, 27 Jun 2014 07:49:02 +0000 (08:49 +0100)]
target-mips: signal RI Exception on DSP and Loongson instructions

Move DSP and Loongson instruction to *_legacy functions as they have been
removed in R6.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: split decode_opc_special* into *_r6 and *_legacy
Leon Alrae [Fri, 27 Jun 2014 07:49:02 +0000 (08:49 +0100)]
target-mips: split decode_opc_special* into *_r6 and *_legacy

For better code readability and to avoid 'if' statements for all R6 and preR6
instructions whose opcodes are the same - decode_opc_special* functions are
split into functions with _r6 and _legacy suffixes.

*_r6 functions will contain instructions which were introduced in R6.
*_legacy functions will contain instructions which were removed in R6.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: extract decode_opc_special* from decode_opc
Leon Alrae [Fri, 27 Jun 2014 07:49:01 +0000 (08:49 +0100)]
target-mips: extract decode_opc_special* from decode_opc

Creating separate decode functions for special, special2 and special3
instructions to ease adding new R6 instructions and removing legacy
instructions.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: move LL and SC instructions
Leon Alrae [Fri, 27 Jun 2014 07:49:01 +0000 (08:49 +0100)]
target-mips: move LL and SC instructions

The encoding of LL and SC instruction has changed in MIPS32 Release 6.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
10 years agotarget-mips: add SELEQZ and SELNEZ instructions
Leon Alrae [Fri, 27 Jun 2014 07:49:01 +0000 (08:49 +0100)]
target-mips: add SELEQZ and SELNEZ instructions

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
10 years agotarget-mips: signal RI Exception on instructions removed in R6
Leon Alrae [Fri, 27 Jun 2014 07:49:00 +0000 (08:49 +0100)]
target-mips: signal RI Exception on instructions removed in R6

Signal Reserved Instruction Exception on instructions that do not exist in R6.
In this commit the following groups of preR6 instructions are marked as deleted:
- Floating Point Paired Single
- Floating Point Compare
- conditional moves / branches on FPU conditions
- branch likelies
- unaligned loads / stores
- traps
- legacy accumulator instructions
- COP1X
- MIPS-3D

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agotarget-mips: define ISA_MIPS64R6
Leon Alrae [Fri, 27 Jun 2014 07:49:00 +0000 (08:49 +0100)]
target-mips: define ISA_MIPS64R6

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
10 years agoMerge remote-tracking branch 'remotes/cohuck/tags/s390x-20141010' into staging
Peter Maydell [Fri, 10 Oct 2014 13:55:29 +0000 (14:55 +0100)]
Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20141010' into staging

various s390x updates:
- cpu state handling in qemu and migration
- vhost-scsi-ccw bugfix

# gpg: Signature made Fri 10 Oct 2014 14:01:34 BST using RSA key ID C6F02FAF
# gpg: Can't check signature: public key not found

* remotes/cohuck/tags/s390x-20141010:
  s390x/virtio-ccw: fix vhost-scsi intialization
  s390x/migration: migrate CPU state
  s390x/kvm: synchronize the cpu state after SIGP (INITIAL) CPU RESET
  s390x/kvm: reuse kvm_s390_reset_vcpu() to get rid of ifdefs
  s390x/kvm: propagate s390 cpu state to kvm
  s390x/kvm: proper use of the cpu states OPERATING and STOPPED
  s390x/kvm: introduce proper states for s390 cpus
  linux-headers: update to 3.17-rc7

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agokvm fix compilation with GCC 4.3.4
Paolo Bonzini [Fri, 10 Oct 2014 10:23:35 +0000 (12:23 +0200)]
kvm fix compilation with GCC 4.3.4

As usual, SLES11's GCC complained about double typedefs:

/home/cohuck/git/qemu/kvm-all.c:110: error: redefinition of typedef ‘KVMState’
/home/cohuck/git/qemu/include/sysemu/kvm.h:161: error: previous declaration of ‘KVMState’ was here

Reported-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agos390x/virtio-ccw: fix vhost-scsi intialization
Cornelia Huck [Tue, 30 Sep 2014 11:55:04 +0000 (13:55 +0200)]
s390x/virtio-ccw: fix vhost-scsi intialization

The vhost-scsi-ccw backend is of type VHostSCSICcw, not VirtIOSCSICcw.

This fixes a segfault when invoking

    qemu-system-s390x -device vhost-scsi-ccw,?

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
10 years agos390x/migration: migrate CPU state
Thomas Huth [Tue, 30 Sep 2014 08:58:42 +0000 (10:58 +0200)]
s390x/migration: migrate CPU state

This patch provides the cpu save information for dumps and later life
migration and enables migration of the CPU state. The code is based on
earlier work from Christian Borntraeger and Jason Herne.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
[provide cpu_post_load()]
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
CC: Andreas Faerber <afaerber@suse.de>
CC: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Jason J. Herne <jjherne@us.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
[Cornelia Huck: tweaked cpu_post_load() comment]
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
10 years agos390x/kvm: synchronize the cpu state after SIGP (INITIAL) CPU RESET
David Hildenbrand [Tue, 30 Sep 2014 08:57:32 +0000 (10:57 +0200)]
s390x/kvm: synchronize the cpu state after SIGP (INITIAL) CPU RESET

We need to synchronize registers after a reset has been performed. The
current code does that in qemu_system_reset(), load_normal_reset() and
modified_clear_reset() for all vcpus. After SIGP (INITIAL) CPU RESET,
this needs to be done for the targeted vcpu as well, so let's call
cpu_synchronize_post_reset() in the respective handlers.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
CC: Andreas Faerber <afaerber@suse.de>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
10 years agos390x/kvm: reuse kvm_s390_reset_vcpu() to get rid of ifdefs
David Hildenbrand [Tue, 30 Sep 2014 08:57:31 +0000 (10:57 +0200)]
s390x/kvm: reuse kvm_s390_reset_vcpu() to get rid of ifdefs

This patch reuses kvm_s390_reset_vcpu() to get rid of some CONFIG_KVM and
CONFIG_USER_ONLY ifdefs in cpu.c.

In order to get rid of CONFIG_USER_ONLY, kvm_s390_reset_vcpu() has to provide a
dummy implementation - the two definitions are moved to the proper section in
cpu.h.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
CC: Andreas Faerber <afaerber@suse.de>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
10 years agos390x/kvm: propagate s390 cpu state to kvm
David Hildenbrand [Tue, 30 Sep 2014 08:57:30 +0000 (10:57 +0200)]
s390x/kvm: propagate s390 cpu state to kvm

Let QEMU propagate the cpu state to kvm. If kvm doesn't yet support it, it is
silently ignored as kvm will still handle the cpu state itself in that case.

The state is not synced back, thus kvm won't have a chance to actively modify
the cpu state. To do so, control has to be given back to QEMU (which is already
done so in all relevant cases).

Setting of the cpu state can fail either because kvm doesn't support the
interface yet, or because the state is invalid/not supported. Failed attempts
will be traced

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
CC: Andreas Faerber <afaerber@suse.de>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
10 years agos390x/kvm: proper use of the cpu states OPERATING and STOPPED
David Hildenbrand [Tue, 30 Sep 2014 08:57:29 +0000 (10:57 +0200)]
s390x/kvm: proper use of the cpu states OPERATING and STOPPED

This patch makes sure that halting a cpu and stopping a cpu are two different
things. Stopping a cpu will also set the cpu halted - this is needed for common
infrastructure to work (note that the stop and stopped flag cannot be used for
our purpose because they are already used by other mechanisms).

A cpu can be halted ("waiting") when it is operating. If interrupts are
disabled, this is called a "disabled wait", as it can't be woken up anymore. A
stopped cpu is treated like a "disabled wait" cpu, but in order to prepare for a
proper cpu state synchronization with the kvm part, we need to track the real
logical state of a cpu.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Andreas Faerber <afaerber@suse.de>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
10 years agos390x/kvm: introduce proper states for s390 cpus
David Hildenbrand [Tue, 30 Sep 2014 08:57:28 +0000 (10:57 +0200)]
s390x/kvm: introduce proper states for s390 cpus

Until now, when a s390 cpu was stopped or halted, the number of running
CPUs was tracked in a global variable. This was problematic for migration,
so Jason came up with a per-cpu running state.
As it turns out, we want to track the full logical state of a target vcpu,
so we need real s390 cpu states.

This patch is based on an initial patch by Jason Herne, but was heavily
rewritten when adding the cpu states STOPPED and OPERATING. On the way we
move add_del_running to cpu.c (the declaration is already in cpu.h) and
modify the users where appropriate.

Please note that the cpu is still set to be stopped when it is
halted, which is wrong. This will be fixed in the next patch. The LOAD and
CHECK-STOP state will not be used in the first step.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
[folded Jason's patch into David's patch to avoid add/remove same lines]
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Andreas Faerber <afaerber@suse.de>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
10 years agolinux-headers: update to 3.17-rc7
Jens Freimann [Tue, 30 Sep 2014 08:57:27 +0000 (10:57 +0200)]
linux-headers: update to 3.17-rc7

Sync headers with 3.17-rc7

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
10 years agoMerge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
Peter Maydell [Thu, 9 Oct 2014 14:09:05 +0000 (15:09 +0100)]
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

Four changes here.  Polling for reconnection of character devices,
the QOMification of accelerators, a fix for -kernel support on x86, and one
for a recently-introduced virtio-scsi optimization.

# gpg: Signature made Thu 09 Oct 2014 14:36:50 BST using RSA key ID 4E6B09D7
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg:                 aka "Paolo Bonzini <bonzini@gnu.org>"

* remotes/bonzini/tags/for-upstream: (28 commits)
  qemu-char: Fix reconnect socket error reporting
  qemu-sockets: Add error to non-blocking connect handler
  qemu-error: Add error_vreport()
  virtio-scsi: fix use-after-free of VirtIOSCSIReq
  linuxboot: compute initrd loading address
  kvm: Make KVMState be the TYPE_KVM_ACCEL instance struct
  accel: Create accel object when initializing machine
  accel: Pass MachineState object to accel init functions
  accel: Rename 'init' method to 'init_machine'
  accel: Move accel init/allowed code to separate function
  accel: Remove tcg_available() function
  accel: Move qtest accel registration to qtest.c
  accel: Move Xen registration code to xen-common.c
  accel: Move KVM accel registration to kvm-all.c
  accel: Report unknown accelerator as "not found" instead of "does not exist"
  accel: Make AccelClass.available() optional
  accel: Use QOM classes for accel types
  accel: Move accel name lookup to separate function
  accel: Simplify configure_accelerator() using AccelType *acc variable
  accel: Create AccelType typedef
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoqemu-char: Fix reconnect socket error reporting
Corey Minyard [Wed, 8 Oct 2014 12:11:55 +0000 (07:11 -0500)]
qemu-char: Fix reconnect socket error reporting

If reconnect was set, errors wouldn't always be reported.
Fix that and also only report a connect error once until a
connection has been made.

The primary purpose of this is to tell the user that a
connection failed so they can know they need to figure out
what went wrong.  So we don't want to spew too much
out here, just enough so they know.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoqemu-sockets: Add error to non-blocking connect handler
Corey Minyard [Wed, 8 Oct 2014 12:11:56 +0000 (07:11 -0500)]
qemu-sockets: Add error to non-blocking connect handler

An error value here would be quite handy and more consistent
with the rest of the code.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
[Make sure SO_ERROR value is passed to error_setg_errno. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoqemu-error: Add error_vreport()
Corey Minyard [Wed, 8 Oct 2014 12:11:54 +0000 (07:11 -0500)]
qemu-error: Add error_vreport()

Needed to nicely print socket error reports.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agovirtio-scsi: fix use-after-free of VirtIOSCSIReq
Paolo Bonzini [Tue, 7 Oct 2014 23:19:00 +0000 (01:19 +0200)]
virtio-scsi: fix use-after-free of VirtIOSCSIReq

scsi_req_continue can complete the request and cause the VirtIOSCSIReq
to be freed.  Fetch req->sreq just once to avoid the bug.

Reported-by: Richard Jones <rjones@redhat.com>
Tested-by: Richard Jones <rjones@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agolinuxboot: compute initrd loading address
Paolo Bonzini [Mon, 6 Oct 2014 14:49:57 +0000 (16:49 +0200)]
linuxboot: compute initrd loading address

Even though hw/i386/pc.c tries to compute a valid loading address for the
initrd, close to the top of RAM, this does not take into account other
data that is malloced into that memory by SeaBIOS.

Luckily we can easily look at the memory map to find out how much memory is
used up there.  This patch places the initrd in the first four gigabytes,
below the first hole (as returned by INT 15h, AX=e801h).

Without this patch:
[    0.000000] init_memory_mapping: [mem 0x07000000-0x07fdffff]
[    0.000000] RAMDISK: [mem 0x0710a000-0x07fd7fff]

With this patch:
[    0.000000] init_memory_mapping: [mem 0x07000000-0x07fdffff]
[    0.000000] RAMDISK: [mem 0x07112000-0x07fdffff]

So linuxboot is able to use the 64k that were added as padding for
QEMU <= 2.1.

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agokvm: Make KVMState be the TYPE_KVM_ACCEL instance struct
Eduardo Habkost [Fri, 26 Sep 2014 20:45:32 +0000 (17:45 -0300)]
kvm: Make KVMState be the TYPE_KVM_ACCEL instance struct

Now that we create an accel object before calling machine_init, we can
simply use the accel object to save all KVMState data, instead of
allocationg KVMState manually.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Create accel object when initializing machine
Eduardo Habkost [Fri, 26 Sep 2014 20:45:31 +0000 (17:45 -0300)]
accel: Create accel object when initializing machine

Create an actual TYPE_ACCEL object when initializing a machine. This
will allow accelerator classes to implement some initialization on
instance_init, and to save state on the TYPE_ACCEL object.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Pass MachineState object to accel init functions
Eduardo Habkost [Fri, 26 Sep 2014 20:45:30 +0000 (17:45 -0300)]
accel: Pass MachineState object to accel init functions

Most of the machine options and machine state information is in the
MachineState object, not on the MachineClass. This will allow init
functions to use the MachineState object directly instead of
qemu_get_machine_opts() or the current_machine global.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoMerge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20141006-2' into...
Peter Maydell [Tue, 7 Oct 2014 09:41:48 +0000 (10:41 +0100)]
Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20141006-2' into staging

linux-user pull for 2.2

Clearest linux-user patches sent to the list since august,
Apart from Mikhails patch, the rest are quite trivial.

v2: check for CONFIG_TIMERFD only after it has been defined

# gpg: Signature made Mon 06 Oct 2014 20:08:10 BST using RSA key ID DE3C9BC0
# gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>"
# gpg:                 aka "Riku Voipio <riku.voipio@linaro.org>"

* remotes/riku/tags/pull-linux-user-20141006-2:
  translate-all.c: memory walker initial address miscalculation
  linux-user: don't include timerfd if not needed
  linux-user: Simplify timerid checks on g_posix_timers range
  linux-user: Convert blkpg to use a special subop handler
  linux-user: Enable epoll_pwait syscall for ARM

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agotranslate-all.c: memory walker initial address miscalculation
Mikhail Ilyin [Mon, 8 Sep 2014 13:28:56 +0000 (17:28 +0400)]
translate-all.c: memory walker initial address miscalculation

The initial base address is miscalculated in walk_memory_regions().
It has to be shifted TARGET_PAGE_BITS more. Holder variables are
extended to target_ulong size otherwise they don't fit for MIPS N32
(a 32-bit ABI with a 64-bit address space) and qemu won't compile.
The issue led to incorrect debug output of memory maps and a
mis-formed coredumped file.

Signed-off-by: Mikhail Ilyin <m.ilin@samsung.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
10 years agolinux-user: don't include timerfd if not needed
Riku Voipio [Wed, 1 Oct 2014 13:05:46 +0000 (16:05 +0300)]
linux-user: don't include timerfd if not needed

Without this, builds on older systems fail with:

qemu/linux-user/syscall.c:61:25: warning: sys/timerfd.h: No such file or directory

v2: fix the usual case where CONFIG_TIMERFD is enabled..

Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
10 years agolinux-user: Simplify timerid checks on g_posix_timers range
Alexander Graf [Fri, 22 Aug 2014 11:56:18 +0000 (13:56 +0200)]
linux-user: Simplify timerid checks on g_posix_timers range

We check whether the passed in timer id is negative on all calls
that involve g_posix_timers.

However, these checks are bogus. First off we limit the timer_id to
16 bits which is not what Linux does. Then we check whether it's negative
which it can't be because we masked it.

We can safely remove the masking. For the negativity check we can just
treat the timerid as unsigned and only check for upper boundaries.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
10 years agolinux-user: Convert blkpg to use a special subop handler
Alexander Graf [Fri, 22 Aug 2014 11:15:50 +0000 (13:15 +0200)]
linux-user: Convert blkpg to use a special subop handler

The blkpg ioctl can take different payloads depending on the opcode in
its payload structure. Create a new special ioctl handler that can only
deal with partition style ones for now.

This patch fixes running parted for me.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
10 years agolinux-user: Enable epoll_pwait syscall for ARM
Peter Maydell [Fri, 19 Sep 2014 01:35:20 +0000 (02:35 +0100)]
linux-user: Enable epoll_pwait syscall for ARM

We have support for the epoll_pwait syscall, but it wasn't enabled for
ARM guests because we hadn't defined the syscall number; correct this
deficiency.

Reported-by: Dave Flogeras <dflogeras2@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
10 years agogdbstub: Allow target CPUs to specify watchpoint STOP_BEFORE_ACCESS flag
Peter Maydell [Fri, 12 Sep 2014 18:04:17 +0000 (19:04 +0100)]
gdbstub: Allow target CPUs to specify watchpoint STOP_BEFORE_ACCESS flag

GDB assumes that watchpoint set via the gdbstub remote protocol will
behave in the same way as hardware watchpoints for the target. In
particular, whether the CPU stops with the PC before or after the insn
which triggers the watchpoint is target dependent. Allow guest CPU
code to specify which behaviour to use. This fixes a bug where with
guest CPUs which stop before the accessing insn GDB would manually
step forward over what it thought was the insn and end up one insn
further forward than it should be.

We set this flag for the CPU architectures which set
gdbarch_have_nonsteppable_watchpoint in gdb 7.7:
ARM, CRIS, LM32, MIPS and Xtensa.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Tested-by: Michael Walle <michael@walle.cc> (for lm32)
Message-id: 1410545057-14014-1-git-send-email-peter.maydell@linaro.org

10 years agoMerge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
Peter Maydell [Mon, 6 Oct 2014 09:59:55 +0000 (10:59 +0100)]
Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

# gpg: Signature made Sat 04 Oct 2014 21:24:46 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/block-pull-request: (23 commits)
  blockdev-test: Test device_del after drive_del
  blockdev-test: Factor out some common code into helpers
  blockdev-test: Simplify by using g_assert_cmpstr()
  blockdev-test: Clean up bogus drive_add argument
  blockdev-test: Use single rather than double quotes in QMP
  drive_del-test: Merge of qdev-monitor-test, blockdev-test
  iotests: qemu-img info output for corrupt image
  qapi: Add corrupt field to ImageInfoSpecificQCow2
  iotests: Use _img_info
  util: Emancipate id_wellformed() from QemuOpts
  q35/ahci: Pick up -cdrom and -hda options
  qtest/bios-tables: Correct Q35 command line
  ide: Update ide_drive_get to be HBA agnostic
  pc/vl: Add units-per-default-bus property
  blockdev: Allow overriding if_max_dev property
  blockdev: Orphaned drive search
  qemu-iotests: Fix supported cache modes for 052
  make check-block: Use default cache modes
  Modify qemu_opt_rename to realize renaming all items in opts
  vmdk: Fix integer overflow in offset calculation
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoblockdev-test: Test device_del after drive_del
Markus Armbruster [Thu, 2 Oct 2014 14:51:36 +0000 (16:51 +0200)]
blockdev-test: Test device_del after drive_del

Executed in this order, drive_del and device_del's automatic drive
deletion take notoriously tricky special paths.

[Fixed "an device" -> "a device" typo as requested by Eric Blake.
--Stefan]

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1412261496-24455-7-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoblockdev-test: Factor out some common code into helpers
Markus Armbruster [Thu, 2 Oct 2014 14:51:35 +0000 (16:51 +0200)]
blockdev-test: Factor out some common code into helpers

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1412261496-24455-6-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoblockdev-test: Simplify by using g_assert_cmpstr()
Markus Armbruster [Thu, 2 Oct 2014 14:51:34 +0000 (16:51 +0200)]
blockdev-test: Simplify by using g_assert_cmpstr()

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1412261496-24455-5-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoblockdev-test: Clean up bogus drive_add argument
Markus Armbruster [Thu, 2 Oct 2014 14:51:33 +0000 (16:51 +0200)]
blockdev-test: Clean up bogus drive_add argument

The first argument should be a PCI address, which pci-addr=auto isn't.
Doesn't really matter, as drive_add ignores its first argument when
its second argument has if=none.  Clean it up anyway.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1412261496-24455-4-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoblockdev-test: Use single rather than double quotes in QMP
Markus Armbruster [Thu, 2 Oct 2014 14:51:32 +0000 (16:51 +0200)]
blockdev-test: Use single rather than double quotes in QMP

QMP accepts both single and double quotes.  This is the only test
using double quotes.  They need to be quoted in C strings.  Replace
them by single quotes.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1412261496-24455-3-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agodrive_del-test: Merge of qdev-monitor-test, blockdev-test
Markus Armbruster [Thu, 2 Oct 2014 14:51:31 +0000 (16:51 +0200)]
drive_del-test: Merge of qdev-monitor-test, blockdev-test

Each of qdev-monitor-test and blockdev-test has just one test case,
and both are about drive_del.

[Extended copyright from 2013 to 2013-2014 as requested by Eric Blake.
--Stefan]

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1412261496-24455-2-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoiotests: qemu-img info output for corrupt image
Max Reitz [Tue, 30 Sep 2014 19:31:29 +0000 (21:31 +0200)]
iotests: qemu-img info output for corrupt image

The "corrupt" entry in the format-specific information section should be
"true".

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1412105489-7681-4-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoqapi: Add corrupt field to ImageInfoSpecificQCow2
Max Reitz [Tue, 30 Sep 2014 19:31:28 +0000 (21:31 +0200)]
qapi: Add corrupt field to ImageInfoSpecificQCow2

Just like lazy-refcounts, this field will be present iff the qcow2
compat level is 1.1 (or probably any future revision).

As expected, this breaks some tests due to the new field present in
qemu-img info output; so fix their output accordingly.

Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1412105489-7681-3-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoiotests: Use _img_info
Max Reitz [Tue, 30 Sep 2014 19:31:27 +0000 (21:31 +0200)]
iotests: Use _img_info

qemu-img info should only be used directly if the format-specific
information or the name of the format is relevant (some tests explicitly
test format-specific information; test 082 uses qcow2-specific settings
to test the qemu-img interface); otherwise, tests should always use
_img_info instead.

Test 082 was touched only partially. It does test the qemu-img
interface; however, its invocations of qemu-img info are not real tests
but rather verifications, so if format-specific information is not
important for the test, there is no reason not to use _img_info. In
contrast to directly invoking qemu-img info, "qcow2" is replaced by
"IMGFMT"; but as "qcow2" is only mentioned once in test 082 (in
_supported_fmt), I consider this an improvement.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1412105489-7681-2-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoaccel: Rename 'init' method to 'init_machine'
Eduardo Habkost [Fri, 26 Sep 2014 20:45:29 +0000 (17:45 -0300)]
accel: Rename 'init' method to 'init_machine'

Today, all accelerator init functions affect some global state:
* tcg_init() calls tcg_exec_init() and affects globals such as tcg_tcx,
  page size globals, and possibly others;
* kvm_init() changes the kvm_state global, cpu_interrupt_handler, and possibly
  others;
* xen_init() changes the xen_xc global, and registers a change state handler.

With the new accelerator QOM classes, initialization may now be split in two
steps:
* instance_init() will do basic initialization that doesn't affect any global
  state and don't need MachineState or MachineClass data. This will allow
  probing code to safely create multiple accelerator objects on the fly just
  for reporting host/accelerator capabilities, for example.
* accel_init_machine()/init_machine() will save the accelerator object in
  MachineState, and do initialization steps which still affect global state,
  machine state, or that need data from MachineClass or MachineState.

To clarify the difference between those two steps, rename init() to
init_machine().

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Move accel init/allowed code to separate function
Eduardo Habkost [Fri, 26 Sep 2014 20:45:28 +0000 (17:45 -0300)]
accel: Move accel init/allowed code to separate function

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Remove tcg_available() function
Eduardo Habkost [Fri, 26 Sep 2014 20:45:27 +0000 (17:45 -0300)]
accel: Remove tcg_available() function

As the function always return 1, it is not needed anymore.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Move qtest accel registration to qtest.c
Eduardo Habkost [Fri, 26 Sep 2014 20:45:26 +0000 (17:45 -0300)]
accel: Move qtest accel registration to qtest.c

As qtest_availble() returns 1 only when CONFIG_POSIX is set, keep
setting AccelClass.available to keep current behavior (this is different
from what we did for KVM and Xen).

This also allows us to make qtest_init_accel() static.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Move Xen registration code to xen-common.c
Eduardo Habkost [Fri, 26 Sep 2014 20:45:25 +0000 (17:45 -0300)]
accel: Move Xen registration code to xen-common.c

Note that this has an user-visible side-effect: instead of reporting
"Xen is not supported for this target", QEMU binaries not supporting Xen
will report "xen accelerator does not exist".

As xen_available() always return 1 when CONFIG_XEN is enabled, we don't
need to set AccelClass.available anymore. xen_enabled() is not being
removed yet, but only because vl.c is still using it.

This also allows us to make xen_init() static.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Move KVM accel registration to kvm-all.c
Eduardo Habkost [Fri, 26 Sep 2014 20:45:24 +0000 (17:45 -0300)]
accel: Move KVM accel registration to kvm-all.c

Note that this has an user-visible side-effect: instead of reporting
"KVM is not supported for this target", QEMU binaries not supporting KVM
will report "kvm accelerator does not exist".

As kvm_availble() always return 1 when CONFIG_KVM is enabled, we don't
need to set AccelClass.available anymore. kvm_enabled() is not being
completely removed yet only because qmp_query_kvm() still uses it.

This also allows us to make kvm_init() static.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Report unknown accelerator as "not found" instead of "does not exist"
Eduardo Habkost [Fri, 26 Sep 2014 20:45:23 +0000 (17:45 -0300)]
accel: Report unknown accelerator as "not found" instead of "does not exist"

As the accelerator classes won't be registered anymore if they are not
enabled at compile time, saying "does not exist" may be misleading, as
the accelerator may be simply disabled. Change the wording to just say
"not found".

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Make AccelClass.available() optional
Eduardo Habkost [Fri, 26 Sep 2014 20:45:22 +0000 (17:45 -0300)]
accel: Make AccelClass.available() optional

When we move accel classes outside accel.c, the available() function
won't be necessary anymore, because the classes will be registered only
if the accelerator code is really enabled at build time.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Use QOM classes for accel types
Eduardo Habkost [Fri, 26 Sep 2014 20:45:21 +0000 (17:45 -0300)]
accel: Use QOM classes for accel types

Instead of having a static AccelType array, register a class for each
accelerator type, and use class name lookup to find accelerator
information.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Move accel name lookup to separate function
Eduardo Habkost [Fri, 26 Sep 2014 20:45:20 +0000 (17:45 -0300)]
accel: Move accel name lookup to separate function

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Simplify configure_accelerator() using AccelType *acc variable
Eduardo Habkost [Fri, 26 Sep 2014 20:45:19 +0000 (17:45 -0300)]
accel: Simplify configure_accelerator() using AccelType *acc variable

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Create AccelType typedef
Eduardo Habkost [Fri, 26 Sep 2014 20:45:18 +0000 (17:45 -0300)]
accel: Create AccelType typedef

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoaccel: Move accel code to accel.c
Eduardo Habkost [Fri, 26 Sep 2014 20:45:17 +0000 (17:45 -0300)]
accel: Move accel code to accel.c

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agovl.c: Small coding style fix
Eduardo Habkost [Fri, 26 Sep 2014 20:45:16 +0000 (17:45 -0300)]
vl.c: Small coding style fix

Just to make checkpatch.pl happy when moving the code.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoqemu-char: Print the remote and local addresses for a socket
Corey Minyard [Thu, 2 Oct 2014 16:17:38 +0000 (11:17 -0500)]
qemu-char: Print the remote and local addresses for a socket

It seems that it might be a good idea to know what is at the remote
end of a socket for tracking down issues.  So add that to the
socket filename.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoqemu-char: Add reconnecting to client sockets
Corey Minyard [Thu, 2 Oct 2014 16:17:37 +0000 (11:17 -0500)]
qemu-char: Add reconnecting to client sockets

Adds a "reconnect" option to socket backends that gives a reconnect
timeout.  This only applies to client sockets.  If the other end
of a socket closes the connection, qemu will attempt to reconnect
after the given number of seconds.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoqemu-char: set socket filename to disconnected when not connected
Corey Minyard [Thu, 2 Oct 2014 16:17:36 +0000 (11:17 -0500)]
qemu-char: set socket filename to disconnected when not connected

This way we can tell if the socket is connected or not.  It also splits
the string conversions out into separate functions to make this more
convenient.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoqemu-char: Move some items into TCPCharDriver
Corey Minyard [Thu, 2 Oct 2014 16:17:35 +0000 (11:17 -0500)]
qemu-char: Move some items into TCPCharDriver

This keeps them from having to be passed around and makes them
available for later functions, like printing and reconnecting.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoqemu-char: Rework qemu_chr_open_socket() for reconnect
Corey Minyard [Thu, 2 Oct 2014 16:17:34 +0000 (11:17 -0500)]
qemu-char: Rework qemu_chr_open_socket() for reconnect

Move all socket configuration to qmp_chardev_open_socket().
qemu_chr_open_socket_fd() just opens the socket.  This is getting ready
for the reconnect code, which will call open_sock_fd() on a reconnect
attempt.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoqemu-char: Make the filename size for a chardev a #define
Corey Minyard [Thu, 2 Oct 2014 16:17:33 +0000 (11:17 -0500)]
qemu-char: Make the filename size for a chardev a #define

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoutil: Emancipate id_wellformed() from QemuOpts
Markus Armbruster [Tue, 30 Sep 2014 11:59:30 +0000 (13:59 +0200)]
util: Emancipate id_wellformed() from QemuOpts

IDs have long spread beyond QemuOpts: not everything with an ID
necessarily goes through QemuOpts.  Commit 9aebf3b is about such a
case: block layer names are meant to be well-formed IDs, but some of
them don't go through QemuOpts, and thus weren't checked.  The commit
fixed that the straightforward way: rename the internal QemuOpts
helper id_wellformed() to qemu_opts_id_wellformed() and give it
external linkage.

Instead of using it directly in block.c, the commit adds wrapper
bdrv_is_valid_name(), probably to hide the connection to QemuOpts.

Go one logical step further: emancipate IDs from QemuOpts.  Rename the
function back to id_wellformed(), and put it in another file.  While
there, clean up its value to bool.  Peel off the bdrv_is_valid_name()
wrapper.

[Replaced stray return 0 with return false to match bool returns used
elsewhere in id_wellformed().
--Stefan]

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoq35/ahci: Pick up -cdrom and -hda options
John Snow [Wed, 1 Oct 2014 18:19:29 +0000 (14:19 -0400)]
q35/ahci: Pick up -cdrom and -hda options

This patch implements the backend for the Q35 board
for us to be able to pick up and use drives defined
by the -cdrom, -hda, or -drive if=ide shorthand options.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1412187569-23452-7-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoqtest/bios-tables: Correct Q35 command line
John Snow [Wed, 1 Oct 2014 18:19:28 +0000 (14:19 -0400)]
qtest/bios-tables: Correct Q35 command line

If the Q35 board types are to begin recognizing
and decoding syntactic sugar for drive/device
declarations, then workarounds found within
the qtests suite need to be adjusted to prevent
any test failures after the fix.

bios-tables-test improperly uses this cli:
-drive file=etc,id=hd -device ide-hd,drive=hd

Which will create a drive and device due to
the lack of specifying if=none. Then, it will
attempt to create a second device and fail.

This patch corrects this test to always use
the full, non-sugared -device/-drive syntax
for both PC and Q35.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1412187569-23452-6-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoide: Update ide_drive_get to be HBA agnostic
John Snow [Wed, 1 Oct 2014 18:19:27 +0000 (14:19 -0400)]
ide: Update ide_drive_get to be HBA agnostic

Instead of duplicating the logic for the if_ide
(bus,unit) mappings, rely on the blockdev layer
for managing those mappings for us, and use the
drive_get_by_index call instead.

This allows ide_drive_get to work for AHCI HBAs
as well, and can be used in the Q35 initialization.

Lastly, change the nature of the argument to
ide_drive_get so that represents the number of
total drives we can support, and not the total
number of buses. This will prevent array overflows
if the units-per-default-bus property ever needs
to be adjusted for compatibility reasons.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1412187569-23452-5-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agopc/vl: Add units-per-default-bus property
John Snow [Wed, 1 Oct 2014 18:19:26 +0000 (14:19 -0400)]
pc/vl: Add units-per-default-bus property

This patch adds the 'units_per_default_bus' property which
allows individual boards to declare their desired
index => (bus,unit) mapping for their default HBA, so that
boards such as Q35 can specify that its default if_ide HBA,
AHCI, only accepts one unit per bus.

This property only overrides the mapping for drives matching
the block_default_type interface.

This patch also adds this property to *all* past and present
Q35 machine types. This retroactive addition is justified
because the previous erroneous index=>(bus,unit) mappings
caused by lack of such a property were not utilized due to
lack of initialization code in the Q35 init routine.

Further, semantically, the Q35 board type has always had the
property that its default HBA, AHCI, only accepts one unit per
bus. The new code added to add devices to drives relies upon
the accuracy of this mapping. Thus, the property is applied
retroactively to reduce complexity of allowing IDE HBAs with
different units per bus.

Examples:

Prior to this patch, all IDE HBAs were assumed to use 2 units
per bus (Master, Slave). When using Q35 and AHCI, however, we
only allow one unit per bus.

-hdb foo.qcow2 would become index=1, or bus=0,unit=1.
-hdd foo.qcow2 would become index=3, or bus=1,unit=1.
-drive file=foo.qcow2,index=5 becomes bus=2,unit=1.

These are invalid for AHCI. They now become, under Q35 only:

-hdb foo.qcow2 --> index=1, bus=1, unit=0.
-hdd foo.qcow2 --> index=3, bus=3, unit=0.
-drive file=foo.qcow2,index=5 --> bus=5,unit=0.

The mapping is adjusted based on the fact that the default IF
for the Q35 machine type is IF_IDE, and units-per-default-bus
overrides the IDE mapping from its default of 2 units per bus
to just 1 unit per bus.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1412187569-23452-4-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoblockdev: Allow overriding if_max_dev property
John Snow [Wed, 1 Oct 2014 18:19:25 +0000 (14:19 -0400)]
blockdev: Allow overriding if_max_dev property

The if_max_devs table as in the past been an immutable
default that controls the mapping of index => (bus,unit)
for all boards and all HBAs for each interface type.

Since adding this mapping information to the HBA device
itself is currently unwieldly from the perspective of
retrieving this information at option parsing time
(e.g, within drive_new), we consider the alternative
of marking the if_max_devs table mutable so that
later configuration and initialization can adjust the
mapping at will, but only up until a drive is added,
at which point the mapping is finalized.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1412187569-23452-3-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoblockdev: Orphaned drive search
John Snow [Wed, 1 Oct 2014 18:19:24 +0000 (14:19 -0400)]
blockdev: Orphaned drive search

When users use command line options like -hda, -cdrom,
or even -drive if=ide, it is up to the board initialization
routines to pick up these drives and create backing
devices for them.

Some boards, like Q35, have not been doing this.
However, there is no warning explaining why certain
drive specifications are just silently ignored,
so this function adds a check to print some warnings
to assist users in debugging these sorts of issues
in the future.

This patch will not warn about drives added with if_none,
for which it is not possible to tell in advance if
the omission of a backing device is an issue.

A warning in these cases is considered appropriate.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1412187569-23452-2-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoqemu-iotests: Fix supported cache modes for 052
Kevin Wolf [Tue, 30 Sep 2014 11:27:10 +0000 (13:27 +0200)]
qemu-iotests: Fix supported cache modes for 052

The requirement for this test case is really "no O_DIRECT", because the
temporary snapshot for BDRV_O_SNAPSHOT is created in /tmp, which often
is a tmpfs.

Commit f210a83c ('qemu-iotests: Add _default_cache_mode and
_supported_cache_modes') turned the restriction into writethrough-only,
but that's not really necessary.

Allow to run the test for any non-O_DIRECT cache modes, and use the
global default of writeback if no cache mode is specified.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1412076430-11623-3-git-send-email-kwolf@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agomake check-block: Use default cache modes
Kevin Wolf [Tue, 30 Sep 2014 11:27:09 +0000 (13:27 +0200)]
make check-block: Use default cache modes

When qemu-iotests only gave a choice between cache=none and
cache=writethrough, we picked cache=none because it was the option that
would complete the test in finite time. Some tests could only work for
one of the two options and would be skipped with cache=none, but that
was an acceptable trade-off at the time.

Today, however, qemu-iotests is a bit more flexible than that and you
can specify any of the cache modes supported by qemu. The default is
writeback, like in qemu, which is fast and (unlike cache=none) compatible
with any host filesystem. Test cases that have specific requirements for
the cache mode can also specify a different default.

In order to get a fast test run that works everywhere and doesn't skip
tests that need a different cache mode, not specifying any cache mode
and instead relying on the default is the best we can do today.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1412076430-11623-2-git-send-email-kwolf@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoModify qemu_opt_rename to realize renaming all items in opts
Jun Li [Wed, 24 Sep 2014 05:45:27 +0000 (13:45 +0800)]
Modify qemu_opt_rename to realize renaming all items in opts

Add realization of rename all items in opts for qemu_opt_rename.
e.g:
When add bps twice in command line, need to rename all bps to
throttling.bps-total.

This patch solved following bug:
Bug 1145586 - qemu-kvm will give strange hint when add bps twice for a drive
ref:https://bugzilla.redhat.com/show_bug.cgi?id=1145586

[Resolved conflict with commit 5abbf0ee4d87c695deb1c3fca9bb994b93a3e3be
("block: Catch simultaneous usage of options and their aliases").  Check
for simultaneous use first, and then loop over all options.
--Stefan]

Signed-off-by: Jun Li <junmuzi@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1411537527-16715-1-git-send-email-junmuzi@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agovmdk: Fix integer overflow in offset calculation
Fam Zheng [Tue, 23 Sep 2014 01:56:21 +0000 (09:56 +0800)]
vmdk: Fix integer overflow in offset calculation

This fixes the bug introduced by commit c6ac36e (vmdk: Optimize cluster
allocation).

$ ~/build/master/qemu-io /stor/vm/arch.vmdk -c 'write 2G 1k'
write failed: Invalid argument

Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1411437381-11234-1-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoblock: Drop superfluous conditionals around qemu_opts_del()
Markus Armbruster [Mon, 29 Sep 2014 14:07:55 +0000 (16:07 +0200)]
block: Drop superfluous conditionals around qemu_opts_del()

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1411999675-14533-1-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agossh: Don't crash if either host or path is not specified.
Richard W.M. Jones [Mon, 29 Sep 2014 08:06:22 +0000 (09:06 +0100)]
ssh: Don't crash if either host or path is not specified.

$ ./qemu-img create -f qcow2 overlay \
    -b 'json: { "file.driver":"ssh",
                "file.host":"localhost",
                "file.host_key_check":"no" }'
qemu-img: qobject/qdict.c:193: qdict_get_obj: Assertion `obj != ((void *)0)' failed.
Aborted

A similar crash also happens if the file.host field is omitted.

https://bugzilla.redhat.com/show_bug.cgi?id=1147343

Bug found and reported by Jun Li.

Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agosnapshot: fix referencing wrong variable in while loop in do_delvm
Zhang Haoyu [Mon, 29 Sep 2014 08:38:02 +0000 (16:38 +0800)]
snapshot: fix referencing wrong variable in while loop in do_delvm

The while loop variabal is "bs1",
but "bs" is always passed to bdrv_snapshot_delete_by_id_or_name.
Broken in commit a89d89d, v1.7.0.

Signed-off-by: Zhang Haoyu <zhanghy@sangfor.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
10 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-input-20141002-1' into staging
Peter Maydell [Thu, 2 Oct 2014 14:01:48 +0000 (15:01 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-input-20141002-1' into staging

input monitor patches: fix send-key release ordering
and new input-send-event command

# gpg: Signature made Thu 02 Oct 2014 09:10:44 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-input-20141002-1:
  add input-send-event command
  input: fix send-key monitor command release event ordering

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-console-20141002-1' into staging
Peter Maydell [Thu, 2 Oct 2014 12:23:56 +0000 (13:23 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-console-20141002-1' into staging

pixman: fix qemu_default_pixman_format (32bpp non-native endian)

# gpg: Signature made Thu 02 Oct 2014 08:47:20 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-console-20141002-1:
  pixman: fix qemu_default_pixman_format (32bpp non-native endian)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-vga-20141002-1' into staging
Peter Maydell [Thu, 2 Oct 2014 11:28:50 +0000 (12:28 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-vga-20141002-1' into staging

vga: cleanups, prepare for endianness switching

# gpg: Signature made Thu 02 Oct 2014 08:10:49 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-vga-20141002-1:
  vga: Add endian to vmstate
  vga: Make fb endian a common state variable
  vga: Rename vga_template.h to vga-helpers.h
  vga: Remove some "should be done in BIOS" comments
  cirrus: Remove non-32bpp cursor drawing
  vga: Simplify vga_draw_blank() a bit
  vga: Remove rgb_to_pixel indirection
  vga: Separate LE and BE conversion functions
  vga: Remove remainder of old conversion cruft
  vga: Start cutting out non-32bpp conversion support

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoadd input-send-event command
Marcelo Tosatti [Tue, 30 Sep 2014 21:10:17 +0000 (18:10 -0300)]
add input-send-event command

Which allows specification of absolute/relative,
up/down and console parameters.

Suggested by Gerd Hoffman.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>