qemu.git
5 years agoqemu-char: fix MISSING_COMMA
Gonglei [Sat, 15 Nov 2014 10:06:46 +0000 (18:06 +0800)] 
qemu-char: fix MISSING_COMMA

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoacl: fix memory leak
Gonglei [Sat, 15 Nov 2014 10:06:45 +0000 (18:06 +0800)] 
acl: fix memory leak

If 'i != index' for all acl->entries, variable
entry leaks the storage it points to.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agonvme: remove superfluous check
Gonglei [Sat, 15 Nov 2014 10:06:44 +0000 (18:06 +0800)] 
nvme: remove superfluous check

Operands don't affect result (CONSTANT_EXPRESSION_RESULT)
((n->bar.aqa >> AQA_ASQS_SHIFT) & AQA_ASQS_MASK) > 4095
is always false regardless of the values of its operands.
This occurs as the logical second operand of '||'.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoloader: fix NEGATIVE_RETURNS
Gonglei [Sat, 15 Nov 2014 10:06:43 +0000 (18:06 +0800)] 
loader: fix NEGATIVE_RETURNS

lseek will return -1 on error, g_malloc0(size) and read(,,size)
paramenters cannot be negative. We should add a check for return
value of lseek().

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoqga: fix false negative argument passing
Gonglei [Sat, 15 Nov 2014 10:06:42 +0000 (18:06 +0800)] 
qga: fix false negative argument passing

Function send_response(s, &qdict->base) returns a negative number
when any failures occured. But strerror()'s parameter cannot be
negative. Let's change the testing condition and pass '-ret' to
strerr().

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agomips_mipssim: fix use-after-free for filename
Gonglei [Sat, 15 Nov 2014 10:06:41 +0000 (18:06 +0800)] 
mips_mipssim: fix use-after-free for filename

May pass freed pointer filename as an argument to error_report.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agol2tpv3: fix fd leak
Gonglei [Sat, 15 Nov 2014 10:06:40 +0000 (18:06 +0800)] 
l2tpv3: fix fd leak

In this false branch, fd will leak when it is zero.
Change the testing condition.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
[Fix net_l2tpv3_cleanup as well. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agol2tpv3: fix possible double free
zhanghailiang [Fri, 14 Nov 2014 01:39:23 +0000 (09:39 +0800)] 
l2tpv3: fix possible double free

freeaddrinfo(result) does not assign result = NULL, after frees it.
There will be a double free when it goes error case.
It is reported by covertiy.

Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agolibcacard: fix resource leak
zhanghailiang [Fri, 14 Nov 2014 02:18:08 +0000 (10:18 +0800)] 
libcacard: fix resource leak

In function connect_to_qemu(), getaddrinfo() will allocate memory
that is stored into server, it should be freed by using freeaddrinfo()
before connect_to_qemu() return.

Cc: qemu-stable@nongnu.org
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoMerge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
Peter Maydell [Thu, 13 Nov 2014 15:44:16 +0000 (15:44 +0000)] 
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

x86 and SCSI fixes.  I left out the APIC device model
patches, pending confirmation from the submitter that they really
fix QNX.

# gpg: Signature made Thu 13 Nov 2014 15:13:38 GMT using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream:
  acpi: accurate overflow check
  smbios: change 'ram_addr_t' variables to 'uint64_t'
  kvmclock: Add comment explaining why we need cpu_clean_all_dirty()
  target-i386: fix Coverity complaints about overflows
  apic_common: migrate missing fields
  target-i386: eliminate dead code and hoist common code out of "if"
  virtio-scsi: Fix comment for VirtIOSCSIReq
  virtio-scsi: dataplane: suppress guest notification
  esp: Do not overwrite ESP_TCHI after reset
  virtio-scsi: dataplane: fix allocation for 'cmd_vrings'
  esp: fix coding standards
  virtio-scsi: work around bug in old BIOSes
  esp-pci: fixup deadlock with linux

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoacpi: accurate overflow check
Pavel Dovgalyuk [Fri, 7 Nov 2014 10:31:33 +0000 (13:31 +0300)] 
acpi: accurate overflow check

Compare clock in ns, because acpi_pm_tmr_update uses rounded
to ns value instead of ticks.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
[This lets Windows boot in icount mode. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agosmbios: change 'ram_addr_t' variables to 'uint64_t'
SeokYeon Hwang [Wed, 5 Nov 2014 06:19:54 +0000 (15:19 +0900)] 
smbios: change 'ram_addr_t' variables to 'uint64_t'

ram_addr_t should not be used except if referring to a RAMBlobk.
Using 'uint64_t' avoids a -Wconstant-conversion warning, which
clang >= 3.4 produces in "smbios_get_tables()".

Signed-off-by: SeokYeon Hwang <syeon.hwang@samsung.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agokvmclock: Add comment explaining why we need cpu_clean_all_dirty()
Eduardo Habkost [Mon, 3 Nov 2014 17:45:34 +0000 (15:45 -0200)] 
kvmclock: Add comment explaining why we need cpu_clean_all_dirty()

Try to explain why commit 317b0a6d8ba44e9bf8f9c3dbd776c4536843d82c
needed a cpu_clean_all_dirty() call just after calling
cpu_synchronize_all_states().

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Cc: Andrey Korolyov <andrey@xdel.ru>
Cc: Marcin Gibuła <m.gibula@beyond.pl>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agotarget-i386: fix Coverity complaints about overflows
Paolo Bonzini [Wed, 12 Nov 2014 11:16:58 +0000 (12:16 +0100)] 
target-i386: fix Coverity complaints about overflows

sipi_vector is an int; it is shifted by 12 and passed as a 64-bit value,
which makes Coverity think that we wanted (uint64_t)sipi_vector << 12.

But actually it must be between 0 and 255.  Make this explicit.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoapic_common: migrate missing fields
Pavel Dovgalyuk [Thu, 28 Aug 2014 11:18:57 +0000 (15:18 +0400)] 
apic_common: migrate missing fields

This patch adds missed sipi_vector and wait_for_sipi fields to a new
subsection of the vmstate of the apic_common module. Saving and loading
of these fields makes migration of the apic state deterministic.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
[Initialize the field in pre_load and kvm_apic_realize. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-seabios-1.7.5.1-20141113-1...
Peter Maydell [Thu, 13 Nov 2014 13:02:31 +0000 (13:02 +0000)] 
Merge remote-tracking branch 'remotes/kraxel/tags/pull-seabios-1.7.5.1-20141113-1' into staging

update seabios to 1.7.5.1 stable release

# gpg: Signature made Thu 13 Nov 2014 11:03:05 GMT 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-seabios-1.7.5.1-20141113-1:
  update seabios to 1.7.5.1 stable release

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-input-20141113-1' into staging
Peter Maydell [Thu, 13 Nov 2014 11:52:11 +0000 (11:52 +0000)] 
Merge remote-tracking branch 'remotes/kraxel/tags/pull-input-20141113-1' into staging

QMP/input-send-event: make console parameter optional

# gpg: Signature made Thu 13 Nov 2014 10:07:26 GMT 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-20141113-1:
  QMP/input-send-event: make console parameter optional
  QMP/input-send-event: update document of union InputEvent

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoupdate seabios to 1.7.5.1 stable release
Gerd Hoffmann [Thu, 13 Nov 2014 10:56:02 +0000 (11:56 +0100)] 
update seabios to 1.7.5.1 stable release

git shortlog since 1.7.5:

Hannes Reinecke (1):
      megasas: read addional PCI I/O bar

Kevin O'Connor (5):
      boot: Change ":rom%d" boot order rom instance to ":rom%x"
      vgabios: Return from handle_1011() if handler found.
      Don't enable thread preemption during S3 resume vga option rom execution.
      build: Avoid absolute paths during "whole-program" compiling.
      ehci: Fix bug in hub port assignment

Marcel Apfelbaum (1):
      hw/pci: reserve IO and mem for pci express downstream ports with no devices attached

Markus Armbruster (1):
      boot: Fix boot order for SCSI target, lun > 9

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
5 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20141112-1' into staging
Peter Maydell [Thu, 13 Nov 2014 10:54:05 +0000 (10:54 +0000)] 
Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20141112-1' into staging

usb bugfixes for 2.2

# gpg: Signature made Wed 12 Nov 2014 14:35:09 GMT 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-usb-20141112-1:
  usb-host: fix usb_host_speed_compat tyops
  xhci: add sanity checks to xhci_lookup_uport
  Provide the missing LIBUSB_LOG_LEVEL_* for older libusb or FreeBSD. Providing just the needed value as a defined.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoQMP/input-send-event: make console parameter optional
Amos Kong [Fri, 7 Nov 2014 04:41:25 +0000 (12:41 +0800)] 
QMP/input-send-event: make console parameter optional

The 'QemuConsole' is the input source for handler, we share some
input handlers to process the input events from different QemuConsole.

Normally we only have one set of keyboard, mouse, usbtablet, etc.
The devices have different mask, it's fine to just checking mask to
insure that the handler has the ability to process the event.

I saw we try to bind console to handler in usb/dev-hid.c, but display
always isn't available at that time.

If we have multiseat setup (as Gerd said), we only have 'problem' in
this case. Actually event from different devices have the same effect
for system, it's fine to always use the first available handler
without caring about the console.

For send-key command, we just pass a NULL for console parameter in
calling qemu_input_event_send_key(NULL, ..), but 'input-send-event'
needs to care more devices.

Conclusion:
Generally assigning the special console is meanless, and we can't
directly remove the QMP parameter for compatibility.

So we can make the parameter optional. The parameter might be useful
for some special condition: we have multiple devices without binding
console and they all have the ability(mask) to process events, and
we don't want to use the first one.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
5 years agoQMP/input-send-event: update document of union InputEvent
Amos Kong [Fri, 7 Nov 2014 04:41:24 +0000 (12:41 +0800)] 
QMP/input-send-event: update document of union InputEvent

Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
5 years agousb-host: fix usb_host_speed_compat tyops
Gerd Hoffmann [Mon, 10 Nov 2014 11:14:22 +0000 (12:14 +0100)] 
usb-host: fix usb_host_speed_compat tyops

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
5 years agotarget-i386: eliminate dead code and hoist common code out of "if"
Paolo Bonzini [Wed, 12 Nov 2014 11:04:56 +0000 (12:04 +0100)] 
target-i386: eliminate dead code and hoist common code out of "if"

ist != 0 is checked in the first "if", so it cannot be true in
the "else if" part.  While at it, simplify the code and move
the ESP alignment out of the conditionals.

Reported by Coverity.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agovirtio-scsi: Fix comment for VirtIOSCSIReq
Fam Zheng [Wed, 12 Nov 2014 11:29:55 +0000 (19:29 +0800)] 
virtio-scsi: Fix comment for VirtIOSCSIReq

The cdb is not zeroed by virtio_scsi_init_req, so fix the misleading
comment.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agovirtio-scsi: dataplane: suppress guest notification
Ming Lei [Wed, 12 Nov 2014 03:24:35 +0000 (11:24 +0800)] 
virtio-scsi: dataplane: suppress guest notification

This patch uses vring_should_notify() to suppress
guest notification, and looks notification frequency
can be decreased from ~33K/sec to ~2K/sec in my test
environment.

Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoesp: Do not overwrite ESP_TCHI after reset
Hannes Reinecke [Mon, 10 Nov 2014 15:52:55 +0000 (16:52 +0100)] 
esp: Do not overwrite ESP_TCHI after reset

After a reset ESP_TCHI should contain the unique ID
of the chip. This value will be overwritten with the
current tranfer count if the transfer count has
previously been set.
So we should always return the chip id if ESP_TCHI
has never been written to.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoUpdate version for v2.2.0-rc1 release v2.2.0-rc1
Peter Maydell [Tue, 11 Nov 2014 17:25:11 +0000 (17:25 +0000)] 
Update version for v2.2.0-rc1 release

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoMerge remote-tracking branch 'remotes/otubo/tags/pull-seccomp-20141111' into staging
Peter Maydell [Tue, 11 Nov 2014 16:23:02 +0000 (16:23 +0000)] 
Merge remote-tracking branch 'remotes/otubo/tags/pull-seccomp-20141111' into staging

seccomp branch queue

# gpg: Signature made Tue 11 Nov 2014 16:12:48 GMT using RSA key ID 12F8BD2F
# gpg: Can't check signature: public key not found

* remotes/otubo/tags/pull-seccomp-20141111:
  seccomp: change configure to avoid arm 32 to break
  seccomp: whitelist syscalls fallocate(), fadvise64(), inotify_init1() and inotify_add_watch()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoseccomp: change configure to avoid arm 32 to break
Eduardo Otubo [Fri, 7 Nov 2014 09:05:44 +0000 (10:05 +0100)] 
seccomp: change configure to avoid arm 32 to break

Current stable version of libseccomp (2.1.1) only supports i386 and
x86_64 archs correctly. This patch limits the usage of the syscall
filter for those archs and updates to the correct last version of
libseccomp.

This patch also fixes the bug:
https://bugs.launchpad.net/qemu/+bug/1363641

Signed-off-by: Eduardo Otubo <eduardo.otubo@profitbricks.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paul Moore <pmoore@redhat.com>
5 years agoseccomp: whitelist syscalls fallocate(), fadvise64(), inotify_init1() and inotify_add...
Philipp Gesang [Fri, 5 Sep 2014 16:29:31 +0000 (18:29 +0200)] 
seccomp: whitelist syscalls fallocate(), fadvise64(), inotify_init1() and inotify_add_watch()

fallocate() is needed for snapshotting. If it isn’t whitelisted

    $ qemu-img create -f qcow2 x.qcow 1G
    Formatting 'x.qcow', fmt=qcow2 size=1073741824 encryption=off cluster_size=65536 lazy_refcounts=off
    $ qemu-kvm -display none -monitor stdio -sandbox on x.qcow
    QEMU 2.1.50 monitor - type 'help' for more information
    (qemu) savevm foo
    (qemu) loadvm foo

will fail, as will subsequent savevm commands on the same image.

fadvise64(), inotify_init1(), inotify_add_watch() are needed by
the SDL display. Without the whitelist entries,

    qemu-kvm -sandbox on

fails immediately.

In my tests fadvise64() is called 50--51 times per VM run. That
number seems independent of the duration of the run. fallocate(),
inotify_init1(), inotify_add_watch() are called once each.
Accordingly, they are added to the whitelist at a very low
priority.

Signed-off-by: Philipp Gesang <philipp.gesang@intra2net.com>
Signed-off-by: Eduardo Otubo <eduardo.otubo@profitbricks.com>
5 years agoMerge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2014-11-11' into...
Peter Maydell [Tue, 11 Nov 2014 14:50:10 +0000 (14:50 +0000)] 
Merge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2014-11-11' into staging

trivial patches for 2014-11-11

# gpg: Signature made Tue 11 Nov 2014 14:38:39 GMT 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>"

* remotes/mjt/tags/pull-trivial-patches-2014-11-11:
  block: Fix comment for bdrv_co_get_block_status
  sysbus: Correct SYSTEM_BUS(obj) defines
  target-i386: cpu: keeping function parameters alignment on new line
  xen-hvm: Remove redundant variable 'xstate'
  coroutine-sigaltstack: Change jmp_buf to sigjmp_buf
  pc-bios: petalogix-s3adsp1800.dtb: Use 'xlnx, xps-ethernetlite-2.00.a' instead of 'xlnx, xps-ethernetlite-2.00.b'
  gdbstub: Add a missing case of signal number translation in gdbstub
  numa: make 'info numa' take into account hotplugged memory
  slirp/smbd: modify/set several parameters in generated smbd.conf
  qemu-doc.texi: fix typos in x509 examples
  icc_bus: fix typo ICC_BRIGDE -> ICC_BRIDGE

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoblock: Fix comment for bdrv_co_get_block_status
Fam Zheng [Mon, 10 Nov 2014 09:10:38 +0000 (17:10 +0800)] 
block: Fix comment for bdrv_co_get_block_status

It returns more information than binary, fix the comment.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
5 years agosysbus: Correct SYSTEM_BUS(obj) defines
Gonglei [Tue, 11 Nov 2014 09:37:59 +0000 (17:37 +0800)] 
sysbus: Correct SYSTEM_BUS(obj) defines

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
5 years agotarget-i386: cpu: keeping function parameters alignment on new line
Chen Fan [Wed, 5 Nov 2014 08:40:33 +0000 (16:40 +0800)] 
target-i386: cpu: keeping function parameters alignment on new line

Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
5 years agoxen-hvm: Remove redundant variable 'xstate'
Chen Gang [Tue, 11 Nov 2014 09:23:40 +0000 (17:23 +0800)] 
xen-hvm: Remove redundant variable 'xstate'

In xen_hvm_change_state_handler(), we can pass 'opaque' with type cast
to xen_main_loop_prepare() directly, there's no need to use additional
variable for it.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
5 years agoMerge remote-tracking branch 'remotes/armbru/tags/for-upstream' into staging
Peter Maydell [Tue, 11 Nov 2014 11:05:54 +0000 (11:05 +0000)] 
Merge remote-tracking branch 'remotes/armbru/tags/for-upstream' into staging

Patches to MAINTAINERS that haven't been picked up

# gpg: Signature made Tue 11 Nov 2014 08:46:55 GMT using RSA key ID EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"

* remotes/armbru/tags/for-upstream:
  Add Migration maintainer
  MAINTAINERS: add section for QEMU Guest Agent
  MAINTAINERS: add myself as bootdevice.c maintainer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agovirtio-scsi: dataplane: fix allocation for 'cmd_vrings'
Ming Lei [Tue, 11 Nov 2014 01:17:09 +0000 (09:17 +0800)] 
virtio-scsi: dataplane: fix allocation for 'cmd_vrings'

The size of each element should be sizeof(VirtIOSCSIVring *).

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoMerge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20141111' into staging
Peter Maydell [Tue, 11 Nov 2014 10:09:31 +0000 (10:09 +0000)] 
Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20141111' into staging

linux-user pull for 2.2

Two last minute fixes uncovered and fixed by Tom Musta
and Alexander Graf, thanks

# gpg: Signature made Tue 11 Nov 2014 06:36:02 GMT 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-20141111:
  linux-user: Fix up timer id handling
  linux-user: Do not subtract offset from end address

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoAdd Migration maintainer
Juan Quintela [Wed, 15 Oct 2014 08:34:50 +0000 (10:34 +0200)] 
Add Migration maintainer

Signed-off-by: Juan Quintela <quintela@trasno.org>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
5 years agoMAINTAINERS: add section for QEMU Guest Agent
Michael Roth [Wed, 22 Oct 2014 12:05:36 +0000 (07:05 -0500)] 
MAINTAINERS: add section for QEMU Guest Agent

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
5 years agoMAINTAINERS: add myself as bootdevice.c maintainer
Gonglei [Wed, 22 Oct 2014 03:07:57 +0000 (11:07 +0800)] 
MAINTAINERS: add myself as bootdevice.c maintainer

bootdevice.c was created by me, and I wrote most of
the code in this file. And now I can maintain it,
I'd hope nobody object this.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
5 years agocoroutine-sigaltstack: Change jmp_buf to sigjmp_buf
Willem Pinckaers [Sat, 8 Nov 2014 03:51:59 +0000 (19:51 -0800)] 
coroutine-sigaltstack: Change jmp_buf to sigjmp_buf

This is a simple patch to change the type of old_env from jmp_buf
to sigjmp_buf.  old_env is used by sigsetjmp and as such should be
a sigjmp_buf.

This fixes a stack_chk fail in a OSX 32bit build. Since at least on
OSX sigjmp_buf is four bytes larger then a jmpbuf, resulting in an
overflow in sigsetjmp. Due to variable reordering this overwrites
the stack cookie.

Signed-off-by: Willem Pinckaers <willem_qemu@lekkertech.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Peter: I think I must have missed this one when I converted
       all the jmp_buf to sigjmp_buf in commit 6ab7e546.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
5 years agoxhci: add sanity checks to xhci_lookup_uport
Gerd Hoffmann [Fri, 7 Nov 2014 09:41:25 +0000 (10:41 +0100)] 
xhci: add sanity checks to xhci_lookup_uport

Also catch xhci_lookup_uport failures in post_load.

https://bugzilla.redhat.com/show_bug.cgi?id=1074219

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
5 years agoProvide the missing LIBUSB_LOG_LEVEL_* for older libusb or FreeBSD. Providing just...
Chris Johns [Wed, 5 Nov 2014 08:35:22 +0000 (19:35 +1100)] 
Provide the missing LIBUSB_LOG_LEVEL_* for older libusb or FreeBSD. Providing just the needed value as a defined.

Signed-off-by: Chris Johns <chrisj@rtems.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
5 years agolinux-user: Fix up timer id handling
Alexander Graf [Mon, 10 Nov 2014 20:33:03 +0000 (21:33 +0100)] 
linux-user: Fix up timer id handling

When creating a timer handle, we give the timer id a special magic offset
of 0xcafe0000. However, we never mask that offset out of the timer id before
we start using it to dereference our timer array. So we always end up aborting
timer operations because the timer id is out of bounds.

This was not an issue before my patch e52a99f756e ("linux-user: Simplify
timerid checks on g_posix_timers range") because before we would blindly mask
anything above the first 16 bits.

This patch simplifies the code around timer id creation by introducing a proper
target_timer_id typedef that is s32, just like Linux has it. It also changes the
magic offset to a value that makes all timer ids be positive.

Reported-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
5 years agolinux-user: Do not subtract offset from end address
Tom Musta [Thu, 6 Nov 2014 19:43:13 +0000 (13:43 -0600)] 
linux-user: Do not subtract offset from end address

When computing the upper address of a program segment, do not subtract the
offset from the virtual address; instead compute the sum of the virtual address
and the memory size.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
5 years agopc-bios: petalogix-s3adsp1800.dtb: Use 'xlnx, xps-ethernetlite-2.00.a' instead of...
Chen Gang [Mon, 3 Nov 2014 09:26:30 +0000 (17:26 +0800)] 
pc-bios: petalogix-s3adsp1800.dtb: Use 'xlnx, xps-ethernetlite-2.00.a' instead of 'xlnx, xps-ethernetlite-2.00.b'

For Linux upstream kernel (e.g. 3.17-rc7), the related compatible string
'xlnx,xps-ethernetlite-2.00.a' is supported, but 'b' is not supported,
so change qemu dtb file to match kernel driver.

The related operation for qemu (after this patch):

   yum install libvirt
   yum install tunctl
   tunctl -b
   ip link set tap0 up
   brctl addif virbr0 tap0

   ./configure
   make
   ./microblaze-softmmu/qemu-system-microblaze -M petalogix-s3adsp1800 \
     -kernel ../linux-stable.microblaze/arch/microblaze/boot/linux.bin \
     -no-reboot -append "console=ttyUL0,115200 doreboot" -nographic \
     -net nic,vlan=0,model=xlnx.xps-ethernetlite,macaddr=00:16:35:AF:94:00 \
     -net tap,vlan=0,ifname=tap0,script=no,downscript=no

   in microblaze qemu bash (guest machine):

     ifconfig eth0 add 192.168.122.2 netmask 255.255.255.0
     ifconfig eth0 up

   Then can telnet 192.168.122.2 directly without password from the host
   machine.

The related operation for generating new dtb:

   building Linux kernel firstly, then get dts tool "./scripts/dts/dts".
   "./scripts/dtc/dtc -I dtb -O dts  -o ../work.dts ../qemu/petalogix-s3adsp1800.dtb"
   edit work.dts (replace 'xlnx,xps-ethernetlite-2.00.b')
   "./scripts/dtc/dtc -I dts -O dtb  -o ..qemu/petalogix-s3adsp1800.dtb ../work.dts"

(Since I am not quite sure whether can read this patch or not, I put the
related dtb file in attachment, please check, thanks).

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
5 years agogdbstub: Add a missing case of signal number translation in gdbstub
Martin Simmons [Wed, 5 Nov 2014 14:47:39 +0000 (14:47 +0000)] 
gdbstub: Add a missing case of signal number translation in gdbstub

While using qemu with gdb "target remote" to debug an application that uses
fork and exec, the qemu process receives SIGSTOP every time the forked process
terminates (sending SIGCHLD).

This is caused by a missing call to gdb_signal_to_target in gdbstub.c, which
is fixed by this patch:

Signed-off-by: Martin Simmons <martin@lispworks.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
5 years agonuma: make 'info numa' take into account hotplugged memory
zhanghailiang [Tue, 4 Nov 2014 11:49:30 +0000 (19:49 +0800)] 
numa: make 'info numa' take into account hotplugged memory

When do memory hotplug, if there is numa node, we should add
the memory size to the corresponding node memory size.

It affects the result of hmp command "info numa".

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
5 years agoslirp/smbd: modify/set several parameters in generated smbd.conf
Peter Wu [Mon, 3 Nov 2014 10:52:10 +0000 (11:52 +0100)] 
slirp/smbd: modify/set several parameters in generated smbd.conf

The file sharing module should not handle printers, so disable it.
The options 'load printers' and 'printing' have been available since the
beginning (May 1996, commit 0e8fd3398771da2f016d72830179507f3edda51b).
Option 'disable spoolss' is available since Samba 2.0.4, commit
de5f42c9d9172592779fa2504d44544e3b6b1c0d).

Next, "socket address" was reported as deprecated, use a combination of
"interfaces" and "bind interfaces only" instead (available since October
1997, commit 79f4fb52c1ed56fd843f81b4eb0cdd2991d4d0f4).

Override cache directory to avoid writing to a global directory. Option
available since Samba 3.4.0, Jan 2009, commit
19a05bf2f485023b11b41dfae3f6459847d55ef7.

Set "usershare max shared=0" to prevent a global directory from being
used. Option available since Samba 3.0.23, February 2006, commit
5831715049f2d460ce42299963a5defdc160891b.

The last option was introduced with Samba 3.4.0, but previously
"state directory" was already added which exists in Samba 3.4.0. As
unknown parameters are ignored (while printing a warning), it should be
safe to add another option.

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
5 years agoMerge remote-tracking branch 'remotes/xtensa/tags/20141110-xtensa' into staging
Peter Maydell [Mon, 10 Nov 2014 20:50:36 +0000 (20:50 +0000)] 
Merge remote-tracking branch 'remotes/xtensa/tags/20141110-xtensa' into staging

Xtensa fixes for 2.2:
- fix entry opcode register window checking and add unit test.

# gpg: Signature made Mon 10 Nov 2014 15:01:47 GMT using RSA key ID F83FA044
# gpg: Good signature from "Max Filippov <max.filippov@cogentembedded.com>"
# gpg:                 aka "Max Filippov <jcmvbkbc@gmail.com>"

* remotes/xtensa/tags/20141110-xtensa:
  target-xtensa: add entry overflow test
  target-xtensa: add missing window check for entry

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoMerge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Peter Maydell [Mon, 10 Nov 2014 16:28:51 +0000 (16:28 +0000)] 
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block patches

# gpg: Signature made Mon 10 Nov 2014 09:42:07 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
  block/vdi: Limit maximum size even futher
  qapi: Complete BlkdebugEvent
  iotests: Add test for non-existing backing file
  block: Propagate error in bdrv_img_create()
  qemu-img: Omit error_report() after img_open()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agotarget-xtensa: add entry overflow test
Max Filippov [Fri, 7 Nov 2014 19:55:53 +0000 (22:55 +0300)] 
target-xtensa: add entry overflow test

Check that entry instruction raises window overflow exception when
PS.CALLINC points to live registers.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
5 years agotarget-xtensa: add missing window check for entry
Max Filippov [Fri, 7 Nov 2014 18:11:07 +0000 (21:11 +0300)] 
target-xtensa: add missing window check for entry

Entry opcode needs to check if moving to new register frame would cause
register window overflow. Entry used in function prologue never
overflows because preceding windowed call* opcode writes return address
to the target register window frame, causing overflow exceptions at the
point of call. But when a sequence of entry opcodes is used for register
window spilling there may not be a call or other opcode that would cause
window check between entries and they would not raise overflow exception
themselves resulting in data corruption.

Cc: qemu-stable@nongnu.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
5 years agoMerge remote-tracking branch 'remotes/cohuck/tags/s390x-20141105' into staging
Peter Maydell [Mon, 10 Nov 2014 14:58:59 +0000 (14:58 +0000)] 
Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20141105' into staging

Several bugfixes for s390x:
- instruction decoding and sparse warning in kvm
- overlong input and hangs in the sclp consoles

# gpg: Signature made Wed 05 Nov 2014 15:42:14 GMT using RSA key ID C6F02FAF
# gpg: Good signature from "Cornelia Huck <huckc@linux.vnet.ibm.com>"
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>"

* remotes/cohuck/tags/s390x-20141105:
  s390x/sclpconsole: Avoid hanging SCLP ASCII console
  s390x/sclpconsole-lm: Fix hanging SCLP line mode console
  s390x/sclpconsole-lm: truncate input if line is too long
  s390x/kvm: Fix warning from sparse
  s390x/kvm: Fix opcode decoding for eb instruction handler

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoMerge remote-tracking branch 'remotes/lalrae/tags/mips-20141107' into staging
Peter Maydell [Mon, 10 Nov 2014 13:56:47 +0000 (13:56 +0000)] 
Merge remote-tracking branch 'remotes/lalrae/tags/mips-20141107' into staging

* remotes/lalrae/tags/mips-20141107:
  target-mips: fix multiple TCG registers covering same data
  mips: Ensure PC update with MTC0 single-stepping
  target-mips: fix for missing delay slot in BC1EQZ and BC1NEZ
  mips: Set the CP0.Config3.DSP and CP0.Config3.DSP2P bits
  mips: Add macros for CP0.Config3 and CP0.Config4 bits
  mips: Respect CP0.Status.CU1 for microMIPS FP branches
  mips: Remove CONFIG_VT82C686 from non-Fulong configs

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoesp: fix coding standards
Paolo Bonzini [Mon, 10 Nov 2014 12:58:14 +0000 (13:58 +0100)] 
esp: fix coding standards

Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agoMerge remote-tracking branch 'remotes/amit/tags/vser-2.2.0-queue-2' into staging
Peter Maydell [Mon, 10 Nov 2014 11:58:39 +0000 (11:58 +0000)] 
Merge remote-tracking branch 'remotes/amit/tags/vser-2.2.0-queue-2' into staging

Fixes a crash when a virtio-serial port is added without a name to it.

# gpg: Signature made Fri 07 Nov 2014 04:58:05 GMT using RSA key ID 854083B6
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg:                 aka "Amit Shah <amit@kernel.org>"
# gpg:                 aka "Amit Shah <amitshah@gmx.net>"

* remotes/amit/tags/vser-2.2.0-queue-2:
  virtio-serial: avoid crash when port has no name

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoMerge remote-tracking branch 'mreitz/block' into queue-block
Kevin Wolf [Mon, 10 Nov 2014 09:41:34 +0000 (10:41 +0100)] 
Merge remote-tracking branch 'mreitz/block' into queue-block

* mreitz/block:
  block/vdi: Limit maximum size even futher

5 years agoblock/vdi: Limit maximum size even futher
Max Reitz [Tue, 28 Oct 2014 10:12:32 +0000 (11:12 +0100)] 
block/vdi: Limit maximum size even futher

The block layer read and write functions do not like requests which are
bigger than INT_MAX bytes. Since the VDI bmap is read and written in a
single operation, its size is therefore limited accordingly. This
reduces the maximum VDI image size supported by QEMU to half of what it
currently is (down to approximately 512 TB).

The VDI test 084 has to be adapted accordingly. Actually, one could
clearly see that it was broken from the "Could not open
'TEST_DIR/t.IMGFMT': Invalid argument" line for an image which was
supposed to work just fine.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
5 years agoqapi: Complete BlkdebugEvent
Max Reitz [Fri, 7 Nov 2014 15:51:35 +0000 (16:51 +0100)] 
qapi: Complete BlkdebugEvent

Several events were missing from the QAPI enum, add them.

Reported-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
5 years agovirtio-scsi: work around bug in old BIOSes
Paolo Bonzini [Fri, 7 Nov 2014 13:00:02 +0000 (14:00 +0100)] 
virtio-scsi: work around bug in old BIOSes

Old BIOSes left some padding by mistake after the req_size/resp_size.
New QEMU does not like it, thinking it is a bidirectional command.

As a workaround, we can check if the ANY_LAYOUT bit is set; if not, we
always consider the first buffer as the virtio-scsi request/response,
because, back when QEMU did not support ANY_LAYOUT, it expected the
payload to start at the second element of the iovec.

This can show up during migration.

Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agotarget-mips: fix multiple TCG registers covering same data
Yongbok Kim [Fri, 7 Nov 2014 10:43:21 +0000 (10:43 +0000)] 
target-mips: fix multiple TCG registers covering same data

Avoid to allocate different TCG registers for the FPU registers
that are mapped on the MSA vectore registers.

Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
5 years agomips: Ensure PC update with MTC0 single-stepping
Maciej W. Rozycki [Thu, 6 Nov 2014 20:38:10 +0000 (20:38 +0000)] 
mips: Ensure PC update with MTC0 single-stepping

Correct the way PC is updated when single-stepping instructions, by
keeping the old PC only for the BS_EXCP (exception condition) state.

Some MTC0 (and possibly other) instructions switch to the BS_STOP state
to terminate the current translation block, so that the state transition
of the simulated CPU resulting from the CP0 operation takes effect with
the following instruction.  This happens with `mtc0 <reg>,c0_config' for
example, typically used to set KSEG0 cacheability.

While single-stepping this has a side-effect of not advancing the PC
past the instruction just executed; subsequent single-step traps will
stop at the same instruction repeatedly.  Example:

(gdb) stepi
0x80004d24 in _start ()
5: x/i $pc
=> 0x80004d24 <_start+364>:     mfc0    t1,c0_config
(gdb)
0x80004d28 in _start ()
5: x/i $pc
=> 0x80004d28 <_start+368>:     li      at,-8
(gdb)
0x80004d2c in _start ()
5: x/i $pc
=> 0x80004d2c <_start+372>:     and     t1,t1,at
(gdb)
0x80004d30 in _start ()
5: x/i $pc
=> 0x80004d30 <_start+376>:     ori     t1,t1,0x3
(gdb)
0x80004d34 in _start ()
5: x/i $pc
=> 0x80004d34 <_start+380>:     mtc0    t1,c0_config
(gdb)
0x80004d34 in _start ()
5: x/i $pc
=> 0x80004d34 <_start+380>:     mtc0    t1,c0_config
(gdb)
0x80004d34 in _start ()
5: x/i $pc
=> 0x80004d34 <_start+380>:     mtc0    t1,c0_config
(gdb)
0x80004d34 in _start ()
5: x/i $pc
=> 0x80004d34 <_start+380>:     mtc0    t1,c0_config
(gdb)

-- oops!

Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
5 years agotarget-mips: fix for missing delay slot in BC1EQZ and BC1NEZ
Leon Alrae [Thu, 6 Nov 2014 10:29:38 +0000 (10:29 +0000)] 
target-mips: fix for missing delay slot in BC1EQZ and BC1NEZ

New R6 COP1 conditional branches currently don't have delay slot. Fixing this
by setting MIPS_HFLAG_BDS32 flag which is required for branches having 4-byte
delay slot.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
5 years agomips: Set the CP0.Config3.DSP and CP0.Config3.DSP2P bits
Maciej W. Rozycki [Tue, 4 Nov 2014 15:41:20 +0000 (15:41 +0000)] 
mips: Set the CP0.Config3.DSP and CP0.Config3.DSP2P bits

Set the CP0.Config3.DSP2P bit for the 74kf processor and both that bit
and the CP0.Config3.DSP bit for the artificial mips32r5-generic and
mips64dspr2 processors.  They have the DSPr2 ASE enabled in `insn_flags'
and CPUs that implement that ASE need to have both CP0.Config3.DSP and
CP0.Config3.DSP2P set or software won't detect its presence.

Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
[leon.alrae@imgtec.com: remove DSP flags from mips32r5-generic]
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
5 years agomips: Add macros for CP0.Config3 and CP0.Config4 bits
Maciej W. Rozycki [Tue, 4 Nov 2014 15:38:05 +0000 (15:38 +0000)] 
mips: Add macros for CP0.Config3 and CP0.Config4 bits

Define macros for CP0.Config3 and CP0.Config4 bits.  These used to be
exhaustive as at MIPS32r3, but more bits may have been added since.

Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
5 years agoesp-pci: fixup deadlock with linux
Hannes Reinecke [Fri, 7 Nov 2014 12:22:32 +0000 (13:22 +0100)] 
esp-pci: fixup deadlock with linux

A linux guest will be issuing messages:

[   32.124042] DC390: Deadlock in DataIn_0: DMA aborted unfinished: 000000 bytes remain!!
[   32.126348] DC390: DataIn_0: DMA State: 0

and the HBA will fail to work properly.
Reason is the emulation is not setting the 'DMA transfer done'
status correctly.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
5 years agomips: Respect CP0.Status.CU1 for microMIPS FP branches
Maciej W. Rozycki [Mon, 3 Nov 2014 19:08:51 +0000 (19:08 +0000)] 
mips: Respect CP0.Status.CU1 for microMIPS FP branches

Make microMIPS FP branches respect CP0.Status.CU1 and trap with a
Coprocessor Unusable exception if COP1 has been disabled; also trap if
no FPU is present at all.

Standard MIPS FP instruction encodings have a more regular structure and
branches are covered with a single umbrella along other instructions.
This is not the case with the microMIPS encoding, this case has to be
taken care of explicitly here.  Code to do so has been copied from the
standard MIPS code handler for OPC_CP1, in `decode_opc'.

Problems arising from this bug will generally only show up on user
context switches in operating systems making use of lazy FP context
switches, such as Linux.  It will also more readily trigger if software
FPU emulation is used, either implicitly on a non-float CPU, or forced
on a hard-float CPU such as with the "nofpu" Linux kernel command line
argument.

The problem may have been easily missed because we have no hard-float
microMIPS CPU configuration present; in fact we have no microMIPS CPU
configuration of any kind present.

Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
5 years agomips: Remove CONFIG_VT82C686 from non-Fulong configs
Maciej W. Rozycki [Mon, 3 Nov 2014 18:36:17 +0000 (18:36 +0000)] 
mips: Remove CONFIG_VT82C686 from non-Fulong configs

Fix the regression introduced with commit
47934d0aadc075b05ce2d9e8a44fa6a46edd1afa [hw: move ISA bridges and
devices to hw/isa/, configure with default-configs/], by removing
CONFIG_VT82C686 from configurations that previously did not enable it.
That southbridge is only available on Fulong platforms (CONFIG_FULONG)
that are exclusively little-endian, 64-bit MIPS.  Previously vt82c686.o
was pulled explicitly with obj-$(CONFIG_FULONG).

Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
5 years agovirtio-serial: avoid crash when port has no name
Marc-André Lureau [Wed, 5 Nov 2014 14:43:14 +0000 (15:43 +0100)] 
virtio-serial: avoid crash when port has no name

It seems "name" is not mandatory, and the following command line (based
on one generated by current libvirt) will crash qemu at start:

qemu-system-x86_64 \
    -device virtio-serial-pci \
    -device virtserialport,name=foo \
    -device virtconsole

Program received signal SIGSEGV, Segmentation fault.
__strcmp_ssse3 () at ../sysdeps/x86_64/strcmp.S:210
210        movlpd    (%rsi), %xmm2
Missing separate debuginfos, use: debuginfo-install
python-libs-2.7.5-13.fc20.x86_64
(gdb) bt
 #0  __strcmp_ssse3 () at ../sysdeps/x86_64/strcmp.S:210
 #1  0x000055555566bdc6 in find_port_by_name (name=0x0) at /home/elmarco/src/qemu/hw/char/virtio-serial-bus.c:67

Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
5 years agoiotests: Add test for non-existing backing file
Max Reitz [Mon, 27 Oct 2014 12:30:09 +0000 (13:30 +0100)] 
iotests: Add test for non-existing backing file

Test the error message when a COW file is about to be created which is
supposed to inherit the size of its backing file, while the backing file
given does not actually exist.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
5 years agoblock: Propagate error in bdrv_img_create()
Max Reitz [Mon, 27 Oct 2014 12:30:08 +0000 (13:30 +0100)] 
block: Propagate error in bdrv_img_create()

If the specified backing file could not be opened, do not generate a new
error message which contains the message which has been generated by
bdrv_open(), but just propagate the latter.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
5 years agoqemu-img: Omit error_report() after img_open()
Max Reitz [Mon, 3 Nov 2014 12:40:47 +0000 (13:40 +0100)] 
qemu-img: Omit error_report() after img_open()

img_open() already prints an error if the operation failed, so there
should not be another error_report() afterwards.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
5 years agos390x/sclpconsole: Avoid hanging SCLP ASCII console
Heinz Graalfs [Fri, 24 Oct 2014 13:10:49 +0000 (13:10 +0000)] 
s390x/sclpconsole: Avoid hanging SCLP ASCII console

Force recalculation of file descriptor sets for main loop's poll(),
in order to be able to readd a possibly removed input file descriptor
after can_read() returned 0 (zero).

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
5 years agos390x/sclpconsole-lm: Fix hanging SCLP line mode console
Heinz Graalfs [Wed, 29 Oct 2014 12:52:02 +0000 (12:52 +0000)] 
s390x/sclpconsole-lm: Fix hanging SCLP line mode console

Trigger recalculating sets of file descriptors for the main loop's poll()
in order to make sure a possibly removed FD 0 from the poll() file
descriptor array is re-added. FD 0 is removed from the decriptor array
when the console's can_read() callback returns 0.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
5 years agos390x/sclpconsole-lm: truncate input if line is too long
Heinz Graalfs [Wed, 29 Oct 2014 08:58:05 +0000 (08:58 +0000)] 
s390x/sclpconsole-lm: truncate input if line is too long

As the SCLP line mode console input length is limited by the available
SCCB buffer space, it might lock up if the input does not fit into the
buffer.

With this patch, characters that don't fit are 'eaten' up to the next
CR/LF and the input line is sent truncated to the guest.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
5 years agos390x/kvm: Fix warning from sparse
Thomas Huth [Thu, 23 Oct 2014 07:58:56 +0000 (09:58 +0200)] 
s390x/kvm: Fix warning from sparse

When running "sparse" with the s390x kvm.c code, it complains that
"constant 0x00400f1d40330000 is so big it is long" - let's fix this
by appending a proper suffix.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
5 years agos390x/kvm: Fix opcode decoding for eb instruction handler
Frank Blaschka [Sat, 18 Oct 2014 04:24:12 +0000 (06:24 +0200)] 
s390x/kvm: Fix opcode decoding for eb instruction handler

The second byte of the opcode is encoded in the lowest byte of the ipb
field, not the lowest byte of the ipa field.

Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
5 years agoUpdate version for v2.2.0-rc0 release v2.2.0-rc0
Peter Maydell [Wed, 5 Nov 2014 15:21:04 +0000 (15:21 +0000)] 
Update version for v2.2.0-rc0 release

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agoMerge remote-tracking branch 'remotes/agraf/tags/signed-s390-for-upstream' into staging
Peter Maydell [Wed, 5 Nov 2014 14:14:47 +0000 (14:14 +0000)] 
Merge remote-tracking branch 'remotes/agraf/tags/signed-s390-for-upstream' into staging

Patch queue for s390 - 2014-11-05

Two simple bug fixes to enable slightly newer guest kernels
and preliminary -M s390-ccw support for TCG (virtio doesn't work yet!)

# gpg: Signature made Wed 05 Nov 2014 11:01:55 GMT using RSA key ID 03FEDC60
# gpg: Good signature from "Alexander Graf <agraf@suse.de>"
# gpg:                 aka "Alexander Graf <alex@csgraf.de>"

* remotes/agraf/tags/signed-s390-for-upstream:
  s390x: Implement SAM{24,31,64}
  s390x: Fix sclp console input

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agovhost-user-test: Fix 'make check' broken on glib < 2.26
Gonglei [Wed, 5 Nov 2014 01:00:59 +0000 (09:00 +0800)] 
vhost-user-test: Fix 'make check' broken on glib < 2.26

After commit 89b516d8, some logics is turbid and
breaks 'make check' as below errors:
tests/vhost-user-test.c: In function '_cond_wait_until':
tests/vhost-user-test.c:154: error: 'G_TIME_SPAN_SECOND' undeclared (first use in this function)
tests/vhost-user-test.c:154: error: (Each undeclared identifier is reported only once
tests/vhost-user-test.c:154: error: for each function it appears in.)
tests/vhost-user-test.c: In function 'read_guest_mem':
tests/vhost-user-test.c:192: warning: implicit declaration of function 'g_get_monotonic_time'
tests/vhost-user-test.c:192: warning: nested extern declaration of 'g_get_monotonic_time'
tests/vhost-user-test.c:192: error: 'G_TIME_SPAN_SECOND' undeclared (first use in this function)
make: *** [tests/vhost-user-test.o] Error 1

First, vhost-usr-test.c rely on glib-compat.h because
of using G_TIME_SPAN_SECOND [glib < 2.26] and g_get_monotonic_time(),
but vhost-usr-test.c defined QEMU_GLIB_COMPAT_H, which make
glib-compat.h will not be included.
Second, if we remove QEMU_GLIB_COMPAT_H definability in
vhost-usr-test.c, then we will get below warnings:

tests/vhost-user-test.c: In function 'read_guest_mem':
tests/vhost-user-test.c:190: warning: passing argument 1 of 'g_mutex_lock' from incompatible pointer type
tests/vhost-user-test.c:234: warning: passing argument 1 of 'g_mutex_unlock' from incompatible pointer type

That's because glib-compat.h redefine the g_mutex_lock/unlock
function. Those functions' arguments is CompatGMutex/CompatGCond,
but vhost-user-test.c is using GMutex/GCond, which cause the type
is not consistent.

We can rerealize those functions of vhost-user-test.c,
which need a lots of patches. Let's simply address it, and
leave this file alone.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-id: 1415149259-6188-1-git-send-email-arei.gonglei@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agos390x: Implement SAM{24,31,64}
Alexander Graf [Wed, 15 Oct 2014 16:06:07 +0000 (18:06 +0200)] 
s390x: Implement SAM{24,31,64}

The SAM instructions simply change 2 bits in PSW.MASK to advertise
the current memory mode. While we can't fully guarantee that 31 bit
mode (or even remotely 24 bit mode) actually work correctly, we don't
check whether lpswe modifies these bits, so we shouldn't keep the
guest from executing SAM instructions either.

This patch implements all SAM instrutions with their actual PSW changing
semantics, making more recent Linux kernels boot properly which do issue
a SAM31 call during early boot.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
5 years agos390x: Fix sclp console input
Alexander Graf [Wed, 15 Oct 2014 15:52:49 +0000 (17:52 +0200)] 
s390x: Fix sclp console input

When injecting an sclp console interrupt into the guest, we increase
the PC by 4 for some reason. I have no idea why I put that code there,
but it's clearly wrong. Remove the increment.

This patch fixes sclp serial input for the ccw machine.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
5 years agoqemu-doc.texi: fix typos in x509 examples
Gonglei [Mon, 3 Nov 2014 12:48:30 +0000 (20:48 +0800)] 
qemu-doc.texi: fix typos in x509 examples

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
5 years agoMerge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' into staging
Peter Maydell [Tue, 4 Nov 2014 22:27:23 +0000 (22:27 +0000)] 
Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' into staging

Patch queue for ppc - 2014-11-04

Fun things for 2.2:

  - e500 virt machine: power off support (needs 3.19 guests)
  - e500 virt machine: -device eTSEC support
  - new framework to allow dynamic spawning of sysbus devices
  - spapr: enable migration of nvram
  - new 440x5wDFPU cpu type
  - Altivec and other random fixes

# gpg: Signature made Tue 04 Nov 2014 22:26:39 GMT using RSA key ID 03FEDC60
# gpg: Good signature from "Alexander Graf <agraf@suse.de>"
# gpg:                 aka "Alexander Graf <alex@csgraf.de>"

* remotes/agraf/tags/signed-ppc-for-upstream: (34 commits)
  spapr: Allow dynamic creation of PHB
  target-ppc: Fix Altivec Round Opcodes
  target-ppc: Fix vcmpbfp. Unordered Case
  target-ppc: Fix Altivec Shifts
  target-ppc: simplify AES emulation
  e500: Add support for eTSEC in device tree
  PPC: e500: Support dynamically spawned sysbus devices
  sysbus: Add new platform bus helper device
  sysbus: Expose MMIO enumeration helper
  sysbus: Expose IRQ enumeration helpers
  sysbus: Make devices spawnable via -device
  sysbus: Add dynamic sysbus device search
  hw/ppc/spapr_pci.c: Avoid functions not in glib 2.12 (g_hash_table_iter_*)
  ppc: do not look at the MMU index to detect PR/HV mode
  target-ppc: kvm: Fix memory overflow issue about strncat()
  spapr_nvram: Enable migration
  PPC: E500: Hook up power off GPIO to GPIO controller
  PPC: E500: Instantiate MPC8XXX gpio controller on virt machine
  PPC: Add MPC8XXX gpio controller
  target-ppc: Fix an invalid free in opcode table handling code.
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 years agospapr: Allow dynamic creation of PHB
Alexander Graf [Tue, 4 Nov 2014 22:22:54 +0000 (23:22 +0100)] 
spapr: Allow dynamic creation of PHB

Now that we finally check for presence of dangling sysbus devices, make check
started complaining that the sPAPR PHB is one such device.

However, it really isn't. The spapr PHB is not really a traditional sysbus
device, but much more a special spapr pv device which is already able to get
created dynamically.

Move spapr to its own dynamic sysbus check handling and allow PHB devices to
get allocated dynamically.

Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agotarget-ppc: Fix Altivec Round Opcodes
Tom Musta [Fri, 31 Oct 2014 16:06:15 +0000 (11:06 -0500)] 
target-ppc: Fix Altivec Round Opcodes

Correct the opcodes for the vrfim, vrfin and vrfiz instructions.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agotarget-ppc: Fix vcmpbfp. Unordered Case
Tom Musta [Fri, 31 Oct 2014 16:39:54 +0000 (11:39 -0500)] 
target-ppc: Fix vcmpbfp. Unordered Case

Fix the implementation of Vector Compare Bounds Single Precision.
Specifically, fix the case where the operands are unordered -- since
the result is non-zero, the CR[6] field should be set to zero.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agotarget-ppc: Fix Altivec Shifts
Tom Musta [Wed, 29 Oct 2014 15:02:39 +0000 (10:02 -0500)] 
target-ppc: Fix Altivec Shifts

Fix the implementation of the Altivec shift left and shift right
instructions (vsl, vsr) which erroneously inverts shift direction
on big endian hosts.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agotarget-ppc: simplify AES emulation
Aurelien Jarno [Mon, 27 Oct 2014 16:25:52 +0000 (17:25 +0100)] 
target-ppc: simplify AES emulation

This patch simplifies the AES code, by directly accessing the newly added
S-Box, InvS-Box tables instead of recreating them by using the AES_Te and
AES_Td tables.

Cc: Alexander Graf <agraf@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agoe500: Add support for eTSEC in device tree
Alexander Graf [Tue, 1 Jul 2014 21:30:06 +0000 (23:30 +0200)] 
e500: Add support for eTSEC in device tree

This patch adds support to expose eTSEC devices in the dynamically created
guest facing device tree. This allows us to expose eTSEC devices into guests
without changes in the machine file.

Because we can now tell the guest about eTSEC devices this patch allows the
user to specify eTSEC devices via -device at all.

Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agoPPC: e500: Support dynamically spawned sysbus devices
Alexander Graf [Tue, 1 Jul 2014 14:27:09 +0000 (16:27 +0200)] 
PPC: e500: Support dynamically spawned sysbus devices

For e500 our approach to supporting dynamically spawned sysbus devices is to
create a simple bus from the guest's point of view within which we map those
devices dynamically.

We allocate memory regions always within the "platform" hole in address
space and map IRQs to predetermined IRQ lines that are reserved for platform
device usage.

This maps really nicely into device tree logic, so we can just tell the
guest about our virtual simple bus in device tree as well.

Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agosysbus: Add new platform bus helper device
Alexander Graf [Wed, 24 Sep 2014 11:16:11 +0000 (13:16 +0200)] 
sysbus: Add new platform bus helper device

We need to support spawning of sysbus devices dynamically via the command line.
The easiest way to represent these dynamically spawned devices in the guest's
memory and IRQ layout is by preallocating some space for dynamic sysbus devices.

This is what the "platform bus" device does. It is a sysbus device that exports
a configurably sized MMIO region and a configurable number of IRQ lines. When
this device encounters sysbus devices that have been dynamically created and not
manually wired up, it dynamically connects them to its own pool of resources.

The machine model can then loop through all of these devices and create a guest
configuration (device tree) to make them visible to the guest.

Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agosysbus: Expose MMIO enumeration helper
Alexander Graf [Wed, 24 Sep 2014 10:36:30 +0000 (12:36 +0200)] 
sysbus: Expose MMIO enumeration helper

Sysbus devices have a range of MMIO regions they expose. The exact number
of regions is device specific and internal information to the device model.

Expose whether a region exists via a public interface. That way our platform
bus enumeration code can dynamically determine how many regions exist.

Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agosysbus: Expose IRQ enumeration helpers
Alexander Graf [Wed, 24 Sep 2014 10:32:17 +0000 (12:32 +0200)] 
sysbus: Expose IRQ enumeration helpers

Sysbus devices can get their IRQ lines connected to other devices. It is
possible to figure out which IRQ line a connection is on and whether a sysbus
device even provides an IRQ connector at a specific offset.

This patch exposes helpers to make this information publicly accessible. We
will need it for the platform bus dynamic sysbus enumeration.

Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agosysbus: Make devices spawnable via -device
Alexander Graf [Tue, 1 Jul 2014 14:14:41 +0000 (16:14 +0200)] 
sysbus: Make devices spawnable via -device

Now that we can properly map sysbus devices that haven't been connected to
something forcefully by C code, we can allow the -device command line option
to spawn them.

For machines that don't implement dynamic sysbus assignment in their board
files we add a new bool "has_dynamic_sysbus" to the machine class.
When that property is false (default), we bail out when we see dynamically
spawned sysbus devices, like we did before.

Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agosysbus: Add dynamic sysbus device search
Alexander Graf [Wed, 24 Sep 2014 11:06:57 +0000 (13:06 +0200)] 
sysbus: Add dynamic sysbus device search

Sysbus devices can be spawned by C code or dynamically via the command line.
In the latter case, we need to be able to find the dynamically created devices
to do things with them.

This patch adds a search helper that makes it easy to look for dynamically
spawned sysbus devices.

Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agohw/ppc/spapr_pci.c: Avoid functions not in glib 2.12 (g_hash_table_iter_*)
Peter Maydell [Wed, 22 Oct 2014 17:41:07 +0000 (18:41 +0100)] 
hw/ppc/spapr_pci.c: Avoid functions not in glib 2.12 (g_hash_table_iter_*)

The g_hash_table_iter_* functions for iterating through a hash table
are not present in glib 2.12, which is our current minimum requirement.
Rewrite the code to use g_hash_table_foreach() instead.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
5 years agoppc: do not look at the MMU index to detect PR/HV mode
Paolo Bonzini [Mon, 15 Sep 2014 15:03:28 +0000 (17:03 +0200)] 
ppc: do not look at the MMU index to detect PR/HV mode

The MMU index is an internal detail that should not be needed by the
translator (except to generate loads and stores).  Look at the MSR
directly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>