Commit Graph

34481 Commits

Author SHA1 Message Date
Gonglei
30dc600bbf pci-host: update uncorresponding description
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-15 18:54:06 +04:00
Gonglei
ef9f7b587d pci-host: update obsolete reference about piix_pci.c
piix_pci.c has been renamed into piix.c at commit
c0907c9e64

update the obsolete reference.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-15 18:54:06 +04:00
Liming Wang
38a24c8b74 qemu-options.hx: fix a typo of chardev
Change host to port.

Signed-off-by: Liming Wang <liming.wang@canonical.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-15 18:54:06 +04:00
Fam Zheng
c9cdaa3ab9 memory: Update obsolete comment about AddrRange field type
We are not 64 bit any more since

08dafab4 memory: use 128-bit integers for sizes and intermediates

but the comment is forgotten to be updated.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-15 18:54:06 +04:00
Jan Kiszka
d6c140a771 apic: Fix reported DFR content
IA-32 SDM, Figure 10-14: Bits 27:0 are reserved as 1.

Fixes Jailhouse hypervisor start with in-kernel irqchips off.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-15 18:54:06 +04:00
Peter Maydell
f083201667 trivial patches for 2014-08-09
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQEcBAABAgAGBQJT5TTcAAoJEL7lnXSkw9fbc9oH/082XjCS7XlejxJ6mi6yn90/
 W5FcV/jJBRWATWIIOc03VXmODnQVOfYwTDrgkm7fo/x3EJeREMX2u7QaNV8Cdq+H
 gWwtLupSYYkUIZ3VNjRjrslHnIcyvmPcN/fRHaFHG78Yz69LpJW+h1iCWeR9VN2T
 huAIX0fWJ0Swh3j8pF9h5vKrWmsvGs8woIRC/EAVKutFTjTZuycWuDVmpiqtkQWk
 gq1yAxHe9i+AYkXS5qPfDGKEYM7F1xUgA4FwIgLKyFRcbeQ1XUmGS+iicr2wIpYB
 tGzS+U/LInHnKAtlHfxV7DbI12xtaLxtMq5NeUPZcU50xgvYRtTXoRlI+0cetUA=
 =g0fX
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-08-09' into staging

trivial patches for 2014-08-09

# gpg: Signature made Fri 08 Aug 2014 21:36:44 BST using RSA key ID A4C3D7DB
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D  4324 457C E0A0 8044 65C5
#      Subkey fingerprint: 6F67 E18E 7C91 C5B1 5514  66A7 BEE5 9D74 A4C3 D7DB

* remotes/mjt/tags/trivial-patches-2014-08-09:
  build-sys: Move qapi-{types, visit, event}.o into util-obj-y
  po: Add Chinese translation
  qemu-img: Check getchar() return value in read_password() for WIN32
  hw/timer: Move extern declaration from .c to .h file
  virtio: Move extern declaration to header file
  Show length mismatch error is hex
  target-i386/cpu.c: Fix two error output indentation
  l2tpv3 (configure): it is linux-specific
  hw/timer/imx_*: fix TIMER_MAX clash with system symbol

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-15 13:41:55 +01:00
Fam Zheng
169a24aea4 build-sys: Move qapi-{types, visit, event}.o into util-obj-y
These three objects are repeated in multiple times in Makefiles. Let's
just add them to libqemuutil.a, and don't list explicitly elsewhere.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-09 00:09:17 +04:00
Fam Zheng
90bda0823a po: Add Chinese translation
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Reviewed-by: Dongsheng Song <songdongsheng@live.cn>
Reviewed-by: Wei Huang <wehuang@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-09 00:06:41 +04:00
Chen Gang
fdcf6e65bc qemu-img: Check getchar() return value in read_password() for WIN32
getchar() is a standard c library function which may return with failure
(e.g. -1), so like another platforms, also need check it under WIN32.

And make the related code match current qemu code styles, too.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-09 00:06:32 +04:00
Stefan Weil
f13bef9592 hw/timer: Move extern declaration from .c to .h file
This fixes a warning from smatch (static code analyser).

Fix also the comment with the renamed source file name.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

 hw/timer/tusb6010.c |    3 ---
 include/hw/usb.h    |    7 ++++++-
 2 files changed, 6 insertions(+), 4 deletions(-)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-09 00:06:32 +04:00
Stefan Weil
0f03fb6094 virtio: Move extern declaration to header file
This fixes a warning from smatch (static code analyser).

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-09 00:06:32 +04:00
Alex Bligh
a3f1f040d2 Show length mismatch error is hex
When live migrate fails due to a section length mismatch we currently
see an error message like:

Length mismatch: 0000:00:03.0/virtio-net-pci.rom: 10000 in != 20000

The section lengths are in fact in hex, so this should read

Length mismatch: 0000:00:03.0/virtio-net-pci.rom: 0x10000 in != 0x20000

Correct the error string to reflect this.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-09 00:06:32 +04:00
chenfan
5bb4c35dca target-i386/cpu.c: Fix two error output indentation
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-09 00:06:32 +04:00
Michael Tokarev
bff6cb7296 l2tpv3 (configure): it is linux-specific
Some non-linux systems, for example a system with
FreeBSD kernel and glibc, may declare struct mmsghdr
(in glibc) but may not have linux-specific header
file linux/ip.h.  The actual implementation in qemu
includes this linux-specific header file unconditionally,
so compilation fails if it is not present.  Include
this header in the configure test too.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-09 00:06:32 +04:00
Michael Tokarev
203d65a470 hw/timer/imx_*: fix TIMER_MAX clash with system symbol
The symbol TIMER_MAX used in imx_epit.c and imx_gpt.c
clashes with system symbol with the same name.  Because
all qemu source files includes qemu-common.h which, in
turn, includes limits.h, which is not unusual to define
it.  Rename local symbol to have a reasonable prefix.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-09 00:06:32 +04:00
Peter Maydell
2d591ce2ae Merge remote-tracking branch 'remotes/mdroth/qga-pull-2014-08-08' into staging
* remotes/mdroth/qga-pull-2014-08-08:
  qga: Disable unsupported commands by default
  qga: Add guest-get-fsinfo command
  qga: Add guest-fsfreeze-freeze-list command

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-08 14:16:05 +01:00
Tomoki Sekiyama
1281c08a46 qga: Disable unsupported commands by default
Currently management softwares cannot know whether a qemu-ga command is
supported or not on the running platform until they actually execute it.
This patch disables unsupported commands at launch time of qemu-ga, so that
management softwares can check whether they are supported from 'enabled'
property of the result from 'guest-info' command.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2014-08-07 17:15:53 -05:00
Tomoki Sekiyama
46d4c5723e qga: Add guest-get-fsinfo command
Add command to get mounted filesystems information in the guest.
The returned value contains a list of mountpoint paths and
corresponding disks info such as disk bus type, drive address,
and the disk controllers' PCI addresses, so that management layer
such as libvirt can resolve the disk backends.

For example, when `lsblk' result is:

    NAME           MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
    sdb              8:16   0    1G  0 disk
    `-sdb1           8:17   0 1024M  0 part
      `-vg0-lv0    253:1    0  1.4G  0 lvm  /mnt/test
    sdc              8:32   0    1G  0 disk
    `-sdc1           8:33   0  512M  0 part
      `-vg0-lv0    253:1    0  1.4G  0 lvm  /mnt/test
    vda            252:0    0   25G  0 disk
    `-vda1         252:1    0   25G  0 part /

where sdb is a SCSI disk with PCI controller 0000:00:0a.0 and ID=1,
      sdc is an IDE disk with PCI controller 0000:00:01.1, and
      vda is a virtio-blk disk with PCI device 0000:00:06.0,

guest-get-fsinfo command will return the following result:

    {"return":
     [{"name":"dm-1",
       "mountpoint":"/mnt/test",
       "disk":[
        {"bus-type":"scsi","bus":0,"unit":1,"target":0,
         "pci-controller":{"bus":0,"slot":10,"domain":0,"function":0}},
        {"bus-type":"ide","bus":0,"unit":0,"target":0,
         "pci-controller":{"bus":0,"slot":1,"domain":0,"function":1}}],
       "type":"xfs"},
      {"name":"vda1", "mountpoint":"/",
       "disk":[
        {"bus-type":"virtio","bus":0,"unit":0,"target":0,
         "pci-controller":{"bus":0,"slot":6,"domain":0,"function":0}}],
       "type":"ext4"}]}

In Linux guest, the disk information is resolved from sysfs. So far,
it only supports virtio-blk, virtio-scsi, IDE, SATA, SCSI disks on x86
hosts, and "disk" parameter may be empty for unsupported disk types.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>

*updated schema to report 2.2 as initial supported version

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2014-08-07 17:15:14 -05:00
Tomoki Sekiyama
e99bce2021 qga: Add guest-fsfreeze-freeze-list command
If an array of mount point paths is specified as 'mountpoints' argument
of guest-fsfreeze-freeze-list, qemu-ga will only freeze the file systems
mounted on specified paths in Linux guests. Otherwise, it works as the
same way as guest-fsfreeze-freeze.
This would be useful when the host wants to create partial disk snapshots.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

*updated schema to report 2.2 as initial supported version

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2014-08-07 17:13:10 -05:00
Peter Maydell
2ee55b8351 KVM changes include a MIPS patch and the testdev backend used by the
ARM kvm-unit-tests.  icount include the first part of reverse execution
 and Sebastian Tanase's patches to slow down -icount execution to the
 desired speed of the target.
 
 v1->v2: fix dump_drift_info to print nothing outside icount mode,
         and to compile on 32-bit architectures
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJT43qmAAoJEBvWZb6bTYbySBYP/Rhk22T/PCYMt2GDCAECcpxG
 +ccNxk9nJKsqpuMr9bM7ig7BXlEXm9Z6wC57waUqcHTbbc/6pTC5deMQOp3vz7ll
 aPQ1GLmkRuxbZckhjwww3KIZWFRVZBlNHSmAm+oqV+w9WXAERXTwBR7w+e427q5W
 KiDkO2nBAg/6g6NT+DrzspEbHWRDMBOR6EAd/LAMKInQz+o1wStlKhBNlJB/fvtx
 AflY8xSaY8g/+q6IG9qmc2//QD8tVR5sPJ4io4+86GuFlrnhukHHyY0UtuiDRr4S
 cwSlphCTUDriOsnXkci5ya5ZKNtaQdwdiVWbXK8tZ6gkvbeVTuTVe/D2/2qGjbKN
 GCsEsLRyGdR/lUPLpTt6m7T0JnP98H7fb8GJypEnmqAPjsNVk2inSi87Oc22Osv1
 9zkzHJL4PIQvsMdBQhG3PuXhIVWqrsS29hp9MR6O1NgLnHROc+l8/luOyCICG7FL
 gW8CwAUwxH7UM1VKmwC5JG9BDNqxP24T33OXoDkVnJoqgP1sBdz2BVW13vctVM3Q
 MgQG3cOBQLAA8iqGRRvjY59b17ieJnjyhEWmG6fp9uyhQKyj8K61RH4s+di4q4Ym
 k7Z+FYsIRHVY5vu+MEhacrs4CRFHBTxM2uwOHXk5WVPFnMMyXhA/bdAurS2u9UzO
 fyUSEhvCse7SqS1TJock
 =7ZQL
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

KVM changes include a MIPS patch and the testdev backend used by the
ARM kvm-unit-tests.  icount include the first part of reverse execution
and Sebastian Tanase's patches to slow down -icount execution to the
desired speed of the target.

v1->v2: fix dump_drift_info to print nothing outside icount mode,
        and to compile on 32-bit architectures

# gpg: Signature made Thu 07 Aug 2014 14:09:58 BST using RSA key ID 9B4D86F2
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg:                 aka "Paolo Bonzini <bonzini@gnu.org>"

* remotes/bonzini/tags/for-upstream:
  target-mips: Ignore unassigned accesses with KVM
  monitor: Add drift info to 'info jit'
  cpu-exec: Print to console if the guest is late
  cpu-exec: Add sleeping algorithm
  icount: Add align option to icount
  icount: Add QemuOpts for icount
  icount: Fix virtual clock start value on ARM
  timer: add cpu_icount_to_ns function.
  migration: migrate icount fields.
  icount: put icount variables into TimerState.
  backends: Introduce chr-testdev

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-07 14:54:47 +01:00
James Hogan
eddedd546a target-mips: Ignore unassigned accesses with KVM
MIPS registers an unassigned access handler which raises a guest bus
error exception. However this causes QEMU to crash when KVM is enabled
as it isn't called from the main execution loop so longjmp() gets called
without a corresponding setjmp().

Until the KVM API can be updated to trigger a guest exception in
response to an MMIO exit, prevent the bus error exception being raised
from mips_cpu_unassigned_access() if KVM is enabled.

The check is at run time since the do_unassigned_access callback is
initialised before it is known whether KVM will be enabled.

The problem can be triggered with Malta emulation by making the guest
write to the reset region at physical address 0x1bf00000, since it is
marked read-only which is treated as unassigned for writes.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Sanjay Lal <sanjayl@kymasys.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-07 15:09:48 +02:00
Sebastian Tanase
27498bef35 monitor: Add drift info to 'info jit'
Show in 'info jit' the current delay between the host clock
and the guest clock. In addition, print the maximum advance
and delay of the guest compared to the host.

Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr>
Tested-by: Camille Bégué <camille.begue@openwide.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-07 15:09:48 +02:00
Peter Maydell
9d8bb35574 VFIO patches: Fix MSI-X vector expansion, remove MSI/X message caching
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJT4S/FAAoJECObm247sIsij0gQAJ7DeNQjhmVyRsqP1zGTiedE
 /P+fOIO1bXaYdZwjYG53r/zeqeYRJQ6lFndW7sR6vgDh+TdGEzlpHv8B7QQ2fkFU
 kIkSI3sIVVUZqS+bhJPnQzuOvWMePb9CqzIOO8E/kj/UqJirJ2boVdkr69uUEjzj
 r3UHMZmxWOnAiqGihUUmgMckGIrMaAMlsco247o0pHtZwwMH0Q9OP+WnWiVS64PG
 nT9wyGwNfXxJLpSMNsWneFEjRsmv/5IuhGc8tw5Xwwsf8ufHuTtsriIB01R47MV0
 ljoXAwOh38gkMggOspgrWfxLqwZtoW4U2dl/0ojxysC/5jA6yCOf1xK5rDs5BvRc
 djV0jjlcjDWBcWWp26TvnYoL/KC0WfMxnH2PaoplmpEWEyl8OsMOWCGlGyjakISw
 DSrx668bivM9ywmHC7qN401LKbJRtSka8hb1ZEkyYql1llTErv585NCkwYSKiMmN
 sesqidhB2RkTI816zV2/MBp/P78sfXTgHEIR5QP+yZ6rOwH/YwYL/0u5yN1UY/uN
 j7zkaVZLU3Pzf6k3E9WNwyTG8Gzln8FZyck3SS6xiGGton3BuM2gb51pp3plmVHY
 w82cxstAVujLwjl/Vg/OMI1oW5fVLfS6FhG4dkh+RQqBvgwe/0Wd2wLvHeGwcfcn
 kKwfhZDXVQ7H7cKgdYLb
 =MOBq
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/awilliam/tags/vfio-pci-for-qemu-20140805.0' into staging

VFIO patches: Fix MSI-X vector expansion, remove MSI/X message caching

# gpg: Signature made Tue 05 Aug 2014 20:25:57 BST using RSA key ID 3BB08B22
# gpg: Can't check signature: public key not found

* remotes/awilliam/tags/vfio-pci-for-qemu-20140805.0:
  vfio: Don't cache MSIMessage
  vfio: Fix MSI-X vector expansion

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-07 11:30:38 +01:00
Sebastian Tanase
7f7bc144ed cpu-exec: Print to console if the guest is late
If the align option is enabled, we print to the user whenever
the guest clock is behind the host clock in order for he/she
to have a hint about the actual performance. The maximum
print interval is 2s and we limit the number of messages to 100.
If desired, this can be changed in cpu-exec.c

Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr>
Tested-by: Camille Bégué <camille.begue@openwide.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06 17:53:07 +02:00
Sebastian Tanase
c2aa5f8199 cpu-exec: Add sleeping algorithm
The goal is to sleep qemu whenever the guest clock
is in advance compared to the host clock (we use
the monotonic clocks). The amount of time to sleep
is calculated in the execution loop in cpu_exec.

At first, we tried to approximate at each for loop the real time elapsed
while searching for a TB (generating or retrieving from cache) and
executing it. We would then approximate the virtual time corresponding
to the number of virtual instructions executed. The difference between
these 2 values would allow us to know if the guest is in advance or delayed.
However, the function used for measuring the real time
(qemu_clock_get_ns(QEMU_CLOCK_REALTIME)) proved to be very expensive.
We had an added overhead of 13% of the total run time.

Therefore, we modified the algorithm and only take into account the
difference between the 2 clocks at the begining of the cpu_exec function.
During the for loop we try to reduce the advance of the guest only by
computing the virtual time elapsed and sleeping if necessary. The overhead
is thus reduced to 3%. Even though this method still has a noticeable
overhead, it no longer is a bottleneck in trying to achieve a better
guest frequency for which the guest clock is faster than the host one.

As for the the alignement of the 2 clocks, with the first algorithm
the guest clock was oscillating between -1 and 1ms compared to the host clock.
Using the second algorithm we notice that the guest is 5ms behind the host, which
is still acceptable for our use case.

The tests where conducted using fio and stress. The host machine in an i5 CPU at
3.10GHz running Debian Jessie (kernel 3.12). The guest machine is an arm versatile-pb
built with buildroot.

Currently, on our test machine, the lowest icount we can achieve that is suitable for
aligning the 2 clocks is 6. However, we observe that the IO tests (using fio) are
slower than the cpu tests (using stress).

Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr>
Tested-by: Camille Bégué <camille.begue@openwide.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06 17:53:07 +02:00
Sebastian Tanase
a8bfac3708 icount: Add align option to icount
The align option is used for activating the align algorithm
in order to synchronise the host clock and the guest clock.

Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr>
Tested-by: Camille Bégué <camille.begue@openwide.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06 17:53:07 +02:00
Sebastian Tanase
1ad9580bd7 icount: Add QemuOpts for icount
Make icount parameter use QemuOpts style options in order
to easily add other suboptions.

Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr>
Tested-by: Camille Bégué <camille.begue@openwide.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06 17:53:07 +02:00
Sebastian Tanase
7146839505 icount: Fix virtual clock start value on ARM
When using the icount option on ARM, the virtual
clock starts counting at realtime clock but it
should start at 0.

The reason why the virtual clock starts at realtime clock
is because the first time we call qemu_clock_warp (which
calls icount_warp_rt) in tcg_exec_all, qemu_icount_bias
(which is part of the virtual time computation mechanism)
will increment by realtime - vm_clock_warp_start, with
vm_clock_warp_start being 0 (see icount_warp_rt in cpus.c).

By changing the value of vm_clock_warp_start from 0 to -1,
the first time we call qemu_clock_warp which calls
icount_warp_rt, we will return immediatly because
icount_warp_rt first checks if vm_clock_warp_start is -1
and if it's the case it returns. Therefore, qemu_icount_bias
will first be incremented by the value of a virtual timer
deadline when the virtual cpu goes from active to inactive.

The virtual time will start at 0 and increment based
on the instruction counter when the vcpu is active or
the qemu_icount_bias value when inactive.

Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06 17:53:07 +02:00
KONRAD Frederic
3f03131390 timer: add cpu_icount_to_ns function.
This adds cpu_icount_to_ns function which is needed for reverse execution.

It returns the time for a specific instruction.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06 17:53:07 +02:00
KONRAD Frederic
d09eae3726 migration: migrate icount fields.
This fixes a bug where qemu_icount and qemu_icount_bias are not migrated.
It adds a subsection "timer/icount" to vmstate_timers so icount is migrated only
when needed.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06 17:53:07 +02:00
KONRAD Frederic
c96778bb84 icount: put icount variables into TimerState.
This puts qemu_icount and qemu_icount_bias into TimerState structure to allow
them to be migrated.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06 17:53:07 +02:00
Paolo Bonzini
5692399f0a backends: Introduce chr-testdev
From: Paolo Bonzini <pbonzini@redhat.com>

chr-testdev enables a virtio serial channel to be used for guest
initiated qemu exits. hw/misc/debugexit already enables guest
initiated qemu exits, but only for PC targets. chr-testdev supports
any virtio-capable target. kvm-unit-tests/arm is already making use
of this backend.

Currently there is a single command implemented, "q".  It takes a
(prefix) argument for the exit code, thus an exit is implemented by
writing, e.g. "1q", to the virtio-serial port.

It can be used as:
   $QEMU ... \
     -device virtio-serial-device \
     -device virtserialport,chardev=ctd -chardev testdev,id=ctd

or, use:
   $QEMU ... \
     -device virtio-serial-device \
     -device virtconsole,chardev=ctd -chardev testdev,id=ctd

to bind it to virtio-serial port0.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06 17:53:05 +02:00
Alex Williamson
9b3af4c0e4 vfio: Don't cache MSIMessage
Commit 40509f7f added a test to avoid updating KVM MSI routes when the
MSIMessage is unchanged and f4d45d47 switched to relying on this
rather than doing our own comparison.  Our cached msg is effectively
unused now.  Remove it.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2014-08-05 13:05:57 -06:00
Alex Williamson
c048be5cc9 vfio: Fix MSI-X vector expansion
When new MSI-X vectors are enabled we need to disable MSI-X and
re-enable it with the correct number of vectors.  That means we need
to reprogram the eventfd triggers for each vector.  Prior to f4d45d47
vector->use tracked whether a vector was masked or unmasked and we
could always pick the KVM path when available for unmasked vectors.
Now vfio doesn't track mask state itself and vector->use and virq
remains configured even for masked vectors.  Therefore we need to ask
the MSI-X code whether a vector is masked in order to select the
correct signaling path.  As noted in the comment, MSI relies on
hardware to handle masking.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: qemu-stable@nongnu.org # QEMU 2.1
2014-08-05 13:05:52 -06:00
Peter Maydell
69f87f7130 target-arm queue:
* Set PC correctly when loading AArch64 ELF files
  * sdhci: Fix ADMA dma_memory_read access
  * some more foundational work for EL2/EL3 support
  * fix bugs which reveal themselves if the TARGET_PAGE_SIZE
    is not set to 1K
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJT34/mAAoJEDwlJe0UNgzeRF4P/ReSuK7+woe1GCuUQAsVnl/K
 IN1Y9HpOcepAjGJk2TWTPiE8xA4d1wiIICWpFd3PLyxRjmcholUEiU0du2Joayi0
 uHF7HHSXdtYSu3HkA6VJyLXJU8rsfmGofBtodMiloTPEs1cSvxYQIJeD95ah1Qgy
 AdH9mCI07fjYUuDrwkLLspXMa//pbqZcpJHBjaW7X4XdJOC5c/MOFlAYPGQWng51
 BwNEy73Olp9mByLPsLjdbWyoF8GO4VnnMzbtEtV1EJDI+xUW+8Cl/QUsh7dEKzMQ
 yAGsL9etLVT6PDDs8b9SBUtPzDsDpniFofMIyPuPUppdtKkdQPbMfkBaAn3h6pl1
 p/PO2FARyiu72rWN2T3GQlpP6S0phjdFig7OlwWrvBVBDdgJyqMbCLuYFD1wzZLH
 tKb1/+J7FQoc8D25wtsEqL+tQdQ9FEIjVuoMMSG+U+uvkd8UJczrewy3sYBE68Dy
 /XeypTimBUx1Fr8GvM7DfKycJJZZsH5sVppq/vGJwwP5+ArYyiKARY82arcW86pB
 q4kuVFlpIYRv5Ef/hP3VhYr6ytczhwUsdVQ5la0EHIbVTex9/5rzNENAWl2jkalS
 kWfo6cFMR4p4V9oZTccx9KvOWodxO1DNqyw0cwla8nxSTxNXD+MJeB8hw0/4Tplp
 C6aYEpJb44n6CNfBIzgl
 =UNXb
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140804' into staging

target-arm queue:
 * Set PC correctly when loading AArch64 ELF files
 * sdhci: Fix ADMA dma_memory_read access
 * some more foundational work for EL2/EL3 support
 * fix bugs which reveal themselves if the TARGET_PAGE_SIZE
   is not set to 1K

# gpg: Signature made Mon 04 Aug 2014 14:51:34 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20140804:
  target-arm: A64: fix TLB flush instructions
  target-arm: don't hardcode mask values in arm_cpu_handle_mmu_fault
  target-arm: Fix bit test in sp_el0_access
  target-arm: Add FAR_EL2 and 3
  target-arm: Add ESR_EL2 and 3
  target-arm: Make far_el1 an array
  target-arm: A64: Respect SPSEL when taking exceptions
  target-arm: A64: Respect SPSEL in ERET SP restore
  target-arm: A64: Break out aarch64_save/restore_sp
  sd: sdhci: Fix ADMA dma_memory_read access
  hw/arm/virt: formatting: memory map
  hw/arm/boot: Set PC correctly when loading AArch64 ELF files

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 15:01:38 +01:00
Alex Bennée
dbb1fb277c target-arm: A64: fix TLB flush instructions
According to the ARM ARM we weren't correctly flushing the TLB entries
where bits 63:56 didn't match bit 55 of the virtual address. This
exposed a problem when we switched QEMU's internal TARGET_PAGE_BITS to
12 for aarch64.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1406733627-24255-3-git-send-email-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:56 +01:00
Alex Bennée
dcd82c118c target-arm: don't hardcode mask values in arm_cpu_handle_mmu_fault
Otherwise we break quickly when we change TARGET_PAGE_SIZE.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1406733627-24255-2-git-send-email-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:55 +01:00
Stefan Weil
cdcf14057d target-arm: Fix bit test in sp_el0_access
Static code analyzers complain about a dubious & operation used for a
boolean value. The code does not test the PSTATE_SP bit as it should.

Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-id: 1406359601-25583-1-git-send-email-sw@weilnetz.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:55 +01:00
Edgar E. Iglesias
63b60551a7 target-arm: Add FAR_EL2 and 3
Reviewed-by: Greg Bellows <greg.bellows@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1402994746-8328-7-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:55 +01:00
Edgar E. Iglesias
f2c30f42f5 target-arm: Add ESR_EL2 and 3
Reviewed-by: Greg Bellows <greg.bellows@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1402994746-8328-6-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:55 +01:00
Edgar E. Iglesias
2f0180c51b target-arm: Make far_el1 an array
No functional change.
Prepares for future additions of the EL2 and 3 versions of this reg.

Reviewed-by: Greg Bellows <greg.bellows@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1402994746-8328-5-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:54 +01:00
Edgar E. Iglesias
f151b123a3 target-arm: A64: Respect SPSEL when taking exceptions
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Greg Bellows <greg.bellows@linaro.org>
Message-id: 1402994746-8328-4-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:54 +01:00
Edgar E. Iglesias
98ea5615ab target-arm: A64: Respect SPSEL in ERET SP restore
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Greg Bellows <greg.bellows@linaro.org>
Message-id: 1402994746-8328-3-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:54 +01:00
Edgar E. Iglesias
9208b9617f target-arm: A64: Break out aarch64_save/restore_sp
Break out code to save/restore AArch64 SP into functions.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Greg Bellows <greg.bellows@linaro.org>
Message-id: 1402994746-8328-2-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:54 +01:00
Peter Crosthwaite
9db11cef8c sd: sdhci: Fix ADMA dma_memory_read access
This dma_memory_read was giving too big a size when begin was non-zero.
This could cause segfaults in some circumstances. Fix.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:54 +01:00
Andrew Jones
fab4693239 hw/arm/virt: formatting: memory map
Add some spacing and zeros to make it easier to read and
modify the map. This patch has no functional changes. The
review looks ugly, but it's actually pretty easy to confirm
all the addresses are as they should be - thanks to the new
formatting ;-)

Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:53 +01:00
Peter Maydell
a9047ec3f6 hw/arm/boot: Set PC correctly when loading AArch64 ELF files
The code in do_cpu_reset() correctly handled AArch64 CPUs
when running Linux kernels, but was missing code in the
branch of the if() that deals with loading ELF files.
Correctly jump to the ELF entry point on reset rather than
leaving the reset PC at zero.

Reported-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Christopher Covington <cov@codeaurora.org>
Cc: qemu-stable@nongnu.org
2014-08-04 14:41:53 +01:00
Peter Maydell
cc11a0623a Merge remote-tracking branch 'remotes/amit-migration/for-2.2' into staging
* remotes/amit-migration/for-2.2:
  checker: ignore fields marked unused
  vmstate static checker: whitelist additions

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 14:41:19 +01:00
Peter Maydell
924c09db51 Merge remote-tracking branch 'remotes/amit-virtio-rng/for-2.2' into staging
* remotes/amit-virtio-rng/for-2.2:
  virtio-rng: replace error_set calls with error_setg
  virtio-rng: Move error-checking forward to prevent memory leak

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 13:07:02 +01:00
Peter Maydell
7b13ff3f15 Merge remote-tracking branch 'remotes/sstabellini/xen-20140801' into staging
* remotes/sstabellini/xen-20140801:
  qemu: support xen hvm direct kernel boot
  tap-bsd: implement a FreeBSD only version of tap_open
  xen: fix usage of ENODATA

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04 11:17:24 +01:00