sdk/emulator/qemu.git
9 years agoMAINTAINERS: Add myself as the maintainer of the Quorum driver
Alberto Garcia [Mon, 16 Mar 2015 16:22:05 +0000 (18:22 +0200)]
MAINTAINERS: Add myself as the maintainer of the Quorum driver

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 1426522925-14444-1-git-send-email-berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
9 years agosavevm: create snapshot failed when id_str already exists
Yi Wang [Thu, 12 Mar 2015 14:54:42 +0000 (22:54 +0800)]
savevm: create snapshot failed when id_str already exists

The command "virsh create" will fail in such condition: vm has two
disks: vda and vdb. vda has snapshot s1 with id "1", vdb doesn't have
s1 but has snapshot s2 with id "1".  When we want to run command "virsh
create s1", del_existing_snapshots() only deletes s1 in vda, and
bdrv_snapshot_create() tries to create vdb's snapshot s1 with id "1",
but id "1" alreay exists in vdb with name "s2"!

The simplest way is call find_new_snapshot_id() unconditionally.

Signed-off-by: Yi Wang <up2wing@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
9 years agoMerge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging
Peter Maydell [Tue, 28 Apr 2015 11:22:20 +0000 (12:22 +0100)]
Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging

X86 queue, 2015-04-27 (v2)

# gpg: Signature made Mon Apr 27 19:42:39 2015 BST using RSA key ID 984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@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: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/x86-pull-request:
  target-i386: Remove AMD feature flag aliases from CPU model table
  target-i386: X86CPU::xlevel2 QOM property
  target-i386: Make "level" and "xlevel" properties static
  qemu-config: Accept empty option values
  MAINTAINERS: Change status of X86 to Maintained
  MAINTAINERS: Add myself to X86

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoMerge remote-tracking branch 'remotes/ehabkost/tags/numa-pull-request' into staging
Peter Maydell [Tue, 28 Apr 2015 10:33:47 +0000 (11:33 +0100)]
Merge remote-tracking branch 'remotes/ehabkost/tags/numa-pull-request' into staging

NUMA queue, 2015-04-27

# gpg: Signature made Mon Apr 27 19:02:19 2015 BST using RSA key ID 984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@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: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/numa-pull-request:
  MAINTAINERS: Add myself as NUMA code maintainer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoMerge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20150427' into...
Peter Maydell [Tue, 28 Apr 2015 09:31:03 +0000 (10:31 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20150427' into staging

target-arm queue:
 * memory system updates to support transaction attributes
 * set user-mode and secure attributes for accesses made by ARM CPUs
 * rename c1_coproc to cpacr_el1
 * adjust id_aa64pfr0 when has_el3 CPU property disabled
 * allow ARMv8 SCR.SMD updates

# gpg: Signature made Mon Apr 27 16:14:30 2015 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20150427:
  Allow ARMv8 SCR.SMD updates
  target-arm: Adjust id_aa64pfr0 when has_el3 CPU property disabled
  target-arm: rename c1_coproc to cpacr_el1
  target-arm: Check watchpoints against CPU security state
  target-arm: Use attribute info to handle user-only watchpoints
  target-arm: Add user-mode transaction attribute
  target-arm: Use correct memory attributes for page table walks
  target-arm: Honour NS bits in page tables
  Switch non-CPU callers from ld/st*_phys to address_space_ld/st*
  exec.c: Capture the memory attributes for a watchpoint hit
  exec.c: Add new address_space_ld*/st* functions
  exec.c: Make address_space_rw take transaction attributes
  exec.c: Convert subpage memory ops to _with_attrs
  Add MemTxAttrs to the IOTLB
  Make CPU iotlb a structure rather than a plain hwaddr
  memory: Replace io_mem_read/write with memory_region_dispatch_read/write
  memory: Define API for MemoryRegionOps to take attrs and return status

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoMerge remote-tracking branch 'remotes/spice/tags/pull-spice-20150427-1' into staging
Peter Maydell [Mon, 27 Apr 2015 19:00:57 +0000 (20:00 +0100)]
Merge remote-tracking branch 'remotes/spice/tags/pull-spice-20150427-1' into staging

spice: misc fixes.

# gpg: Signature made Mon Apr 27 12:03:16 2015 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/spice/tags/pull-spice-20150427-1:
  spice: learn to hide cursor
  spice: set pointer position on hotspot
  spice: fix mouse cursor position
  spice: fix simple display on bigendian hosts
  monitor: Make client_migrate_info synchronous

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agotarget-i386: Remove AMD feature flag aliases from CPU model table
Eduardo Habkost [Fri, 10 Apr 2015 17:45:00 +0000 (14:45 -0300)]
target-i386: Remove AMD feature flag aliases from CPU model table

When CPU vendor is AMD, the AMD feature alias bits on
CPUID[0x80000001].EDX are already automatically copied from CPUID[1].EDX
on x86_cpu_realizefn(). When CPU vendor is Intel, those bits are
reserved and should be zero. On either case, those bits shouldn't be set
in the CPU model table.

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
9 years agotarget-i386: X86CPU::xlevel2 QOM property
Eduardo Habkost [Thu, 2 Apr 2015 20:22:27 +0000 (17:22 -0300)]
target-i386: X86CPU::xlevel2 QOM property

We already have "level" and "xlevel", only "xlevel2" is missing.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
9 years agotarget-i386: Make "level" and "xlevel" properties static
Eduardo Habkost [Thu, 2 Apr 2015 20:21:53 +0000 (17:21 -0300)]
target-i386: Make "level" and "xlevel" properties static

Static properties require only 1 line of code, much simpler than the
existing code that requires writing new getters/setters.

As a nice side-effect, this fixes an existing bug where the setters were
incorrectly allowing the properties to be changed after the CPU was
already realized.

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
9 years agoqemu-config: Accept empty option values
Eduardo Habkost [Wed, 8 Apr 2015 17:57:31 +0000 (14:57 -0300)]
qemu-config: Accept empty option values

Currently it is impossible to set an option in a config file to an empty
string, because the parser matches only lines containing non-empty
strings between double-quotes.

As sscanf() "[" conversion specifier only matches non-empty strings, add
a special case for empty strings.

Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
9 years agoMAINTAINERS: Change status of X86 to Maintained
Eduardo Habkost [Wed, 8 Apr 2015 11:36:24 +0000 (08:36 -0300)]
MAINTAINERS: Change status of X86 to Maintained

"Odd Fixes" doesn't reflect the current status of target-i386. We have
people looking after it, now.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
9 years agoMAINTAINERS: Add myself to X86
Eduardo Habkost [Wed, 8 Apr 2015 11:34:56 +0000 (08:34 -0300)]
MAINTAINERS: Add myself to X86

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
9 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-gtk-20150427-1' into staging
Peter Maydell [Mon, 27 Apr 2015 18:06:08 +0000 (19:06 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-gtk-20150427-1' into staging

gtk: support text consoles without vte, bugfixes.

# gpg: Signature made Mon Apr 27 14:34:15 2015 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-gtk-20150427-1:
  gtk: Avoid accel key leakage into guest on console switch
  gtk: Fix VTE focus grabbing
  console/gtk: add qemu_console_get_label
  gtk: bind to text terminal consoles too
  gtk: handle switch_surface(NULL) properly

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoMAINTAINERS: Add myself as NUMA code maintainer
Eduardo Habkost [Wed, 8 Apr 2015 11:34:33 +0000 (08:34 -0300)]
MAINTAINERS: Add myself as NUMA code maintainer

The "srat" and "numa" keywords will help get_maintainer.pl catch
NUMA-related code in other files too.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
9 years agoMerge remote-tracking branch 'remotes/qmp-unstable/tags/for-upstream' into staging
Peter Maydell [Mon, 27 Apr 2015 16:28:41 +0000 (17:28 +0100)]
Merge remote-tracking branch 'remotes/qmp-unstable/tags/for-upstream' into staging

Four little fixes

# gpg: Signature made Fri Apr 24 19:56:51 2015 BST using RSA key ID E24ED5A7
# gpg: Good signature from "Luiz Capitulino <lcapitulino@gmail.com>"

* remotes/qmp-unstable/tags/for-upstream:
  qmp: Give saner messages related to qmp_capabilities misuse
  qmp-commands: fix incorrect uses of ":O" specifier
  qapi: Drop dead genlist parameter
  balloon: improve error msg when adding second device

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agospice: learn to hide cursor
Marc-André Lureau [Tue, 24 Mar 2015 16:50:13 +0000 (17:50 +0100)]
spice: learn to hide cursor

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
9 years agospice: set pointer position on hotspot
Marc-André Lureau [Tue, 24 Mar 2015 16:50:12 +0000 (17:50 +0100)]
spice: set pointer position on hotspot

The Spice protocol uses cursor position on hotspot: the client is
applying hotspot offset when drawing the cursor.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
9 years agospice: fix mouse cursor position
Marc-André Lureau [Tue, 24 Mar 2015 16:50:11 +0000 (17:50 +0100)]
spice: fix mouse cursor position

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
9 years agospice: fix simple display on bigendian hosts
Gerd Hoffmann [Tue, 14 Apr 2015 06:56:21 +0000 (08:56 +0200)]
spice: fix simple display on bigendian hosts

Denis Kirjanov is busy getting spice run on ppc64 and trapped into this
one.  Spice wire format is little endian, so we have to explicitly say
we want little endian when letting pixman convert the data for us.

Reported-by: Denis Kirjanov <kirjanov@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
9 years agomonitor: Make client_migrate_info synchronous
Markus Armbruster [Thu, 5 Mar 2015 08:30:16 +0000 (09:30 +0100)]
monitor: Make client_migrate_info synchronous

Live migration with spice works like this today:

  (1) client_migrate_info monitor cmd
  (2) spice server notifies client, client connects to target host.
  (3) qemu waits until spice client connect is finished.
  (4) send over vmstate (i.e. main part of live migration).
  (5) spice handover to target host.

(3) is implemented by making client_migrate_info a async monitor
command.  This is the only async monitor command we have.

The original reason to implement this dance was that qemu did not accept
new tcp connections while the incoming migration was running, so (2) and
(4) could not be done in parallel.  That issue was fixed long ago though.
Qemu version 1.3.0 (released Dec 2012) and newer happily accept tcp
connects while the incoming migration runs.

Time to drop step (3).  This patch does exactly that, by making the
monitor command synchronous and removing the code needed to handle the
async monitor command in ui/spice-core.c

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
9 years agogtk: Avoid accel key leakage into guest on console switch
Jan Kiszka [Sun, 26 Apr 2015 19:04:21 +0000 (21:04 +0200)]
gtk: Avoid accel key leakage into guest on console switch

GTK2 sends the accel key to the guest when switching to the graphic
console via that shortcut. Resolve this by ignoring any keys until the
next key-release event. However, do not ignore keys when switching via
the menu or when on GTK3.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
9 years agogtk: Fix VTE focus grabbing
Jan Kiszka [Sun, 26 Apr 2015 19:04:20 +0000 (21:04 +0200)]
gtk: Fix VTE focus grabbing

At least on GTK2, the VTE terminal has to be specified as target of
gtk_widget_grab_focus. Otherwise, switching from one VTE terminal to
another causes the focus to get lost.

CC: John Snow <jsnow@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
[ kraxel: fixed build with CONFIG_VTE=n ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
9 years agoAllow ARMv8 SCR.SMD updates
Greg Bellows [Sun, 26 Apr 2015 15:49:26 +0000 (16:49 +0100)]
Allow ARMv8 SCR.SMD updates

Updated scr_write to always allow updates to the SCR.SMD bit on ARMv8
regardless of whether virtualization (EL2) is enabled or not.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Message-id: 1429888797-4378-1-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agotarget-arm: Adjust id_aa64pfr0 when has_el3 CPU property disabled
Sergey Fedorov [Sun, 26 Apr 2015 15:49:26 +0000 (16:49 +0100)]
target-arm: Adjust id_aa64pfr0 when has_el3 CPU property disabled

Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1429669112-29835-1-git-send-email-serge.fdrv@gmail.com
Reviewed-by: Greg Bellows <greg.bellows@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agotarget-arm: rename c1_coproc to cpacr_el1
Sergey Fedorov [Sun, 26 Apr 2015 15:49:25 +0000 (16:49 +0100)]
target-arm: rename c1_coproc to cpacr_el1

Rename the field holding CPACR_EL1 system register state in AArch64
naming style.

Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
[PMM: also fixed a couple of missed occurrences in cpu.c]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agotarget-arm: Check watchpoints against CPU security state
Peter Maydell [Sun, 26 Apr 2015 15:49:25 +0000 (16:49 +0100)]
target-arm: Check watchpoints against CPU security state

Fix a TODO in bp_wp_matches() now that we have a function for
testing whether the CPU is currently in Secure mode or not.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agotarget-arm: Use attribute info to handle user-only watchpoints
Peter Maydell [Sun, 26 Apr 2015 15:49:25 +0000 (16:49 +0100)]
target-arm: Use attribute info to handle user-only watchpoints

Now that we have memory access attribute information in the watchpoint
checking code, we can correctly implement handling of watchpoints
which should match only on userspace accesses, where LDRT/STRT/LDT/STT
from EL1 are treated as userspace accesses.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agotarget-arm: Add user-mode transaction attribute
Peter Maydell [Sun, 26 Apr 2015 15:49:25 +0000 (16:49 +0100)]
target-arm: Add user-mode transaction attribute

Add a transaction attribute indicating that a memory access is being
done from user-mode (unprivileged). This corresponds to an equivalent
signal in ARM AMBA buses.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agotarget-arm: Use correct memory attributes for page table walks
Peter Maydell [Sun, 26 Apr 2015 15:49:25 +0000 (16:49 +0100)]
target-arm: Use correct memory attributes for page table walks

Factor out the page table walk memory accesses into their own function,
so that we can specify the correct S/NS memory attributes for them.
This will also provide a place to use the correct endianness and
handle the need for a stage-2 translation when virtualization is
supported.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agotarget-arm: Honour NS bits in page tables
Peter Maydell [Sun, 26 Apr 2015 15:49:25 +0000 (16:49 +0100)]
target-arm: Honour NS bits in page tables

Honour the NS bit in ARM page tables:
 * when adding entries to the TLB, include the Secure/NonSecure
   transaction attribute
 * set the NS bit in the PAR when doing ATS operations

Note that we don't yet correctly use the NSTable bit to
cause the page table walk itself to use the right attributes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agoSwitch non-CPU callers from ld/st*_phys to address_space_ld/st*
Peter Maydell [Sun, 26 Apr 2015 15:49:24 +0000 (16:49 +0100)]
Switch non-CPU callers from ld/st*_phys to address_space_ld/st*

Switch all the uses of ld/st*_phys to address_space_ld/st*,
except for those cases where the address space is the CPU's
(ie cs->as). This was done with the following script which
generates a Coccinelle patch.

A few over-80-columns lines in the result were rewrapped by
hand where Coccinelle failed to do the wrapping automatically,
as well as one location where it didn't put a line-continuation
'\' when wrapping lines on a change made to a match inside
a macro definition.

===begin===
#!/bin/sh -e
# Usage:
# ./ldst-phys.spatch.sh > ldst-phys.spatch
# spatch -sp_file ldst-phys.spatch -dir . | sed -e '/^+/s/\t/        /g' > out.patch
# patch -p1 < out.patch

for FN in ub uw_le uw_be l_le l_be q_le q_be uw l q; do
cat <<EOF
@ cpu_matches_ld_${FN} @
expression E1,E2;
identifier as;
@@

ld${FN}_phys(E1->as,E2)

@ other_matches_ld_${FN} depends on !cpu_matches_ld_${FN} @
expression E1,E2;
@@

-ld${FN}_phys(E1,E2)
+address_space_ld${FN}(E1,E2, MEMTXATTRS_UNSPECIFIED, NULL)

EOF

done

for FN in b w_le w_be l_le l_be q_le q_be w l q; do
cat <<EOF
@ cpu_matches_st_${FN} @
expression E1,E2,E3;
identifier as;
@@

st${FN}_phys(E1->as,E2,E3)

@ other_matches_st_${FN} depends on !cpu_matches_st_${FN} @
expression E1,E2,E3;
@@

-st${FN}_phys(E1,E2,E3)
+address_space_st${FN}(E1,E2,E3, MEMTXATTRS_UNSPECIFIED, NULL)

EOF

done
===endit===

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agoexec.c: Capture the memory attributes for a watchpoint hit
Peter Maydell [Sun, 26 Apr 2015 15:49:24 +0000 (16:49 +0100)]
exec.c: Capture the memory attributes for a watchpoint hit

Capture the memory attributes for the transaction which triggered
a watchpoint; this allows CPU specific code to implement features
like ARM's "user-mode only WPs also hit for LDRT/STRT accesses
made from privileged code". This change also correctly passes
through the memory attributes to the underlying device when
a watchpoint access doesn't hit.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agoexec.c: Add new address_space_ld*/st* functions
Peter Maydell [Sun, 26 Apr 2015 15:49:24 +0000 (16:49 +0100)]
exec.c: Add new address_space_ld*/st* functions

Add new address_space_ld*/st* functions which allow transaction
attributes and error reporting for basic load and stores. These
are named to be in line with the address_space_read/write/rw
buffer operations.

The existing ld/st*_phys functions are now wrappers around
the new functions.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agoexec.c: Make address_space_rw take transaction attributes
Peter Maydell [Sun, 26 Apr 2015 15:49:24 +0000 (16:49 +0100)]
exec.c: Make address_space_rw take transaction attributes

Make address_space_rw take transaction attributes, rather
than always using the 'unspecified' attributes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agoexec.c: Convert subpage memory ops to _with_attrs
Peter Maydell [Sun, 26 Apr 2015 15:49:24 +0000 (16:49 +0100)]
exec.c: Convert subpage memory ops to _with_attrs

Convert the subpage memory ops to _with_attrs; this will allow
us to pass the attributes through to the underlying access
functions. (Nothing uses the attributes yet.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
9 years agoAdd MemTxAttrs to the IOTLB
Peter Maydell [Sun, 26 Apr 2015 15:49:24 +0000 (16:49 +0100)]
Add MemTxAttrs to the IOTLB

Add a MemTxAttrs field to the IOTLB, and allow target-specific
code to set it via a new tlb_set_page_with_attrs() function;
pass the attributes through to the device when making IO accesses.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agoMake CPU iotlb a structure rather than a plain hwaddr
Peter Maydell [Sun, 26 Apr 2015 15:49:23 +0000 (16:49 +0100)]
Make CPU iotlb a structure rather than a plain hwaddr

Make the CPU iotlb a structure rather than a plain hwaddr;
this will allow us to add transaction attributes to it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agomemory: Replace io_mem_read/write with memory_region_dispatch_read/write
Peter Maydell [Sun, 26 Apr 2015 15:49:23 +0000 (16:49 +0100)]
memory: Replace io_mem_read/write with memory_region_dispatch_read/write

Rather than retaining io_mem_read/write as simple wrappers around
the memory_region_dispatch_read/write functions, make the latter
public and change all the callers to use them, since we need to
touch all the callsites anyway to add MemTxAttrs and MemTxResult
support. Delete io_mem_read and io_mem_write entirely.

(All the callers currently pass MEMTXATTRS_UNSPECIFIED
and convert the return value back to bool or ignore it.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agomemory: Define API for MemoryRegionOps to take attrs and return status
Peter Maydell [Sun, 26 Apr 2015 15:49:23 +0000 (16:49 +0100)]
memory: Define API for MemoryRegionOps to take attrs and return status

Define an API so that devices can register MemoryRegionOps whose read
and write callback functions are passed an arbitrary pointer to some
transaction attributes and can return a success-or-failure status code.
This will allow us to model devices which:
 * behave differently for ARM Secure/NonSecure memory accesses
 * behave differently for privileged/unprivileged accesses
 * may return a transaction failure (causing a guest exception)
   for erroneous accesses

This patch defines the new API and plumbs the attributes parameter through
to the memory.c public level functions io_mem_read() and io_mem_write(),
where it is currently dummied out.

The success/failure response indication is also propagated out to
io_mem_read() and io_mem_write(), which retain the old-style
boolean true-for-error return.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
9 years agoOpen 2.4 development tree
Peter Maydell [Sat, 25 Apr 2015 21:05:07 +0000 (22:05 +0100)]
Open 2.4 development tree

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoqmp: Give saner messages related to qmp_capabilities misuse
Eric Blake [Wed, 15 Apr 2015 15:19:23 +0000 (09:19 -0600)]
qmp: Give saner messages related to qmp_capabilities misuse

Pretending that QMP doesn't understand a command merely because
we are not in the right mode doesn't help first-time users figure
out what to do to correct things.  Although the documentation for
QMP calls out capabilities negotiation, we should also make it
clear in our error messages what we were expecting.  With this
patch, I now get the following transcript:

$ ./x86_64-softmmu/qemu-system-x86_64 -qmp stdio -nodefaults
{"QMP": {"version": {"qemu": {"micro": 93, "minor": 2, "major": 2}, "package": ""}, "capabilities": []}}
{"execute":"huh"}
{"error": {"class": "CommandNotFound", "desc": "The command huh has not been found"}}
{"execute":"quit"}
{"error": {"class": "CommandNotFound", "desc": "Expecting capabilities negotiation with 'qmp_capabilities' before command 'quit'"}}
{"execute":"qmp_capabilities"}
{"return": {}}
{"execute":"qmp_capabilities"}
{"error": {"class": "CommandNotFound", "desc": "Capabilities negotiation is already complete, command 'qmp_capabilities' ignored"}}
{"execute":"quit"}
{"return": {}}
{"timestamp": {"seconds": 1429110729, "microseconds": 181935}, "event": "SHUTDOWN"}

Signed-off-by: Eric Blake <eblake@redhat.com>
Tested-By: Kashyap Chamarthy <kchamart@redhat.com>
Reviewed-by: Paulo Vital <paulo.vital@profitbricks.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
9 years agoqmp-commands: fix incorrect uses of ":O" specifier
Paolo Bonzini [Wed, 15 Apr 2015 11:30:04 +0000 (13:30 +0200)]
qmp-commands: fix incorrect uses of ":O" specifier

As far as the QMP parser is concerned, neither the 'O' nor the 'q' format specifiers
put any constraint on the command.  However, there are two differences:

1) from a documentation point of view 'O' says that this command takes
a dictionary.  The dictionary will be converted to QemuOpts in the
handler to match the corresponding HMP command.

2) 'O' sets QMP_ACCEPT_UNKNOWNS, resulting in the command accepting invalid
extra arguments.  For example the following is accepted:

   { "execute": "send-key",
        "arguments": { "keys": [ { "type": "qcode", "data": "ctrl" },
                                 { "type": "qcode", "data": "alt" },
                                 { "type": "qcode", "data": "delete" } ], "foo": "bar" } }

Neither send-key nor migrate-set-capabilities take a QemuOpts-like
dictionary; they take an array of dictionaries.  And neither command
really wants to have extra unknown arguments.  Thus, the right
specifier to use in this case is 'q'; with this patch the above
command fails with

   {"error": {"class": "GenericError", "desc": "Invalid parameter 'foo'"}}

as intended.

Reported-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
9 years agoqapi: Drop dead genlist parameter
Eric Blake [Fri, 10 Apr 2015 21:07:59 +0000 (15:07 -0600)]
qapi: Drop dead genlist parameter

Defaulting a parameter to True, then having all callers omit or
pass an explicit True for that parameter, is pointless. Looks
like it has been dead since introduction in commit 06d64c6, more
than 4 years ago.

Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
9 years agoballoon: improve error msg when adding second device
Luiz Capitulino [Tue, 31 Mar 2015 17:00:26 +0000 (13:00 -0400)]
balloon: improve error msg when adding second device

A VM supports only one balloon device, but due to several changes
in infrastructure the error message got messed up when trying
to add a second device. Fix it.

Before this fix

Command-line:

qemu-qmp: -device virtio-balloon-pci,id=balloon0: Another balloon device already registered
qemu-qmp: -device virtio-balloon-pci,id=balloon0: Adding balloon handler failed
qemu-qmp: -device virtio-balloon-pci,id=balloon0: Device 'virtio-balloon-pci' could not be initialized

HMP:

Another balloon device already registered
Adding balloon handler failed
Device 'virtio-balloon-pci' could not be initialized

QMP:

{ "execute": "device_add", "arguments": { "driver": "virtio-balloon-pci", "id": "balloon0" } }
{
"error": {
"class": "GenericError",
"desc": "Adding balloon handler failed"
}
}

After this fix

Command-line:

qemu-qmp: -device virtio-balloon-pci,id=balloon0: Only one balloon device is supported
qemu-qmp: -device virtio-balloon-pci,id=balloon0: Device 'virtio-balloon-pci' could not be initialized

HMP:

(qemu) device_add virtio-balloon-pci,id=balloon0
Only one balloon device is supported
Device 'virtio-balloon-pci' could not be initialized
(qemu)

QMP:

{ "execute": "device_add",
          "arguments": { "driver": "virtio-balloon-pci", "id": "balloon0" } }
{
    "error": {
        "class": "GenericError",
        "desc": "Only one balloon device is supported"
    }
}

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
9 years agoUpdate version for v2.3.0 release
Peter Maydell [Fri, 24 Apr 2015 14:05:06 +0000 (15:05 +0100)]
Update version for v2.3.0 release

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoconsole/gtk: add qemu_console_get_label
Gerd Hoffmann [Tue, 17 Feb 2015 09:41:08 +0000 (10:41 +0100)]
console/gtk: add qemu_console_get_label

Add a new function to get a nice label for a given QemuConsole.
Drop the labeling code in gtk.c and use the new function instead.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
9 years agogtk: bind to text terminal consoles too
Gerd Hoffmann [Thu, 22 May 2014 09:08:54 +0000 (11:08 +0200)]
gtk: bind to text terminal consoles too

This way gtk has text terminal consoles even when building without vte.
Most notably you'll get a monitor tab on windows now.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
9 years agogtk: handle switch_surface(NULL) properly
Gerd Hoffmann [Fri, 27 Feb 2015 13:36:09 +0000 (14:36 +0100)]
gtk: handle switch_surface(NULL) properly

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
9 years agoUpdate version for v2.3.0-rc4 release
Peter Maydell [Mon, 20 Apr 2015 16:13:16 +0000 (17:13 +0100)]
Update version for v2.3.0-rc4 release

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agovhost: fix log base address
Michael S. Tsirkin [Fri, 17 Apr 2015 15:13:24 +0000 (17:13 +0200)]
vhost: fix log base address

VHOST_SET_LOG_BASE got an incorrect address, causing
migration errors and potentially even memory corruption.

Reported-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Message-id: 1429283565-32265-1-git-send-email-mst@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agohmp: fix crash in 'info block -n -v'
Alberto Garcia [Fri, 17 Apr 2015 12:44:48 +0000 (15:44 +0300)]
hmp: fix crash in 'info block -n -v'

The image field in BlockDeviceInfo should never be null, however
bdrv_block_device_info() is not filling it in.

This makes the 'info block -n -v' command crash QEMU.

The proper solution is probably to move the relevant code from
bdrv_query_info() to bdrv_block_device_info(), but since we're too
close to the release for that this simpler workaround solves the
crash.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 1429274688-8115-1-git-send-email-berto@igalia.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoMerge remote-tracking branch 'remotes/lalrae/tags/mips-20150417-2' into staging
Peter Maydell [Fri, 17 Apr 2015 11:54:46 +0000 (12:54 +0100)]
Merge remote-tracking branch 'remotes/lalrae/tags/mips-20150417-2' into staging

MIPS patches 2015-04-17

Changes:
* fix broken fulong2e

# gpg: Signature made Fri Apr 17 12:14:37 2015 BST using RSA key ID 0B29DA6B
# gpg: Can't check signature: public key not found

* remotes/lalrae/tags/mips-20150417-2:
  mips: fix broken fulong2e machine

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-fwcfg-20150414-1' into staging
Peter Maydell [Fri, 17 Apr 2015 11:37:38 +0000 (12:37 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-fwcfg-20150414-1' into staging

fw_cfg: add documentation file (docs/specs/fw_cfg.txt)

# gpg: Signature made Tue Apr 14 12:22:20 2015 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-fwcfg-20150414-1:
  fw_cfg: add documentation file (docs/specs/fw_cfg.txt)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agomips: fix broken fulong2e machine
Paolo Bonzini [Thu, 16 Apr 2015 20:11:23 +0000 (21:11 +0100)]
mips: fix broken fulong2e machine

After commit 5312bd8 the bonito_readl() and bonito_writel() have been
accessing incorrect addresses. Consequently QEMU is crashing when trying
to boot Linux kernel on fulong2e machine.

Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
9 years agotarget-ppc: don't invalidate msr MSR_HVB bit in cpu_post_load
Mark Cave-Ayland [Fri, 17 Apr 2015 07:16:49 +0000 (08:16 +0100)]
target-ppc: don't invalidate msr MSR_HVB bit in cpu_post_load

The invalidation code introduced in commit 2360b works by inverting most bits
of env->msr to ensure that hreg_store_msr() will forcibly update the CPU env
state to reflect the new msr value post-migration. Unfortunately
hreg_store_msr() is called with alter_hv set to 0 which preserves the MSR_HVB
state from the CPU env which is now the opposite value to what it should be.

Ensure that we don't invalidate the msr MSR_HVB bit during cpu_post_load so
that the correct value is restored. This fixes suspend/resume for PPC64.

Reported-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alexander Graf <agraf@suse.de>
Message-id: 1429255009-12751-1-git-send-email-mark.cave-ayland@ilande.co.uk
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agofw_cfg: add documentation file (docs/specs/fw_cfg.txt)
Gabriel L. Somlo [Thu, 9 Apr 2015 14:40:01 +0000 (10:40 -0400)]
fw_cfg: add documentation file (docs/specs/fw_cfg.txt)

This document covers the guest-side hardware interface, as
well as the host-side programming API of QEMU's firmware
configuration (fw_cfg) device.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
9 years agoUpdate version for v2.3.0-rc3 release
Peter Maydell [Mon, 13 Apr 2015 16:35:44 +0000 (17:35 +0100)]
Update version for v2.3.0-rc3 release

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoRevert seccomp tests that allow it to be used on non-x86 architectures
Peter Maydell [Fri, 10 Apr 2015 12:58:01 +0000 (13:58 +0100)]
Revert seccomp tests that allow it to be used on non-x86 architectures

Unfortunately it turns out that libseccomp 2.2 still does not work
correctly on non-x86 architectures; return to the previous configure
setup of insisting on libseccomp 2.1 or better and i386/x86_64 and
disabling seccomp support in all other situations.

This reverts the two commits:
 * "seccomp: libseccomp version varying according to arch"
   (commit 896848f0d3e2393905845ef2b244bb2601f9df0c)
 * "seccomp: update libseccomp version and remove arch restriction"
   (commit 8e27fc200457e3f2473d0069263774d4ba17bd85)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1428670681-23032-1-git-send-email-peter.maydell@linaro.org

9 years agopci: Fix crash with illegal "-net nic, model=xxx" option
Thomas Huth [Thu, 9 Apr 2015 13:32:45 +0000 (15:32 +0200)]
pci: Fix crash with illegal "-net nic, model=xxx" option

Current QEMU crashes when specifying an illegal model with the
"-net nic,model=xxx" option, e.g.:

 $ qemu-system-x86_64 -net nic,model=n/a
 qemu-system-x86_64: Unsupported NIC model: n/a

 Program received signal SIGSEGV, Segmentation fault.

The gdb backtrace looks like this:

0x0000555555965fe0 in error_get_pretty (err=0x0) at util/error.c:152
152     return err->msg;
(gdb) bt
 0  0x0000555555965fe0 in error_get_pretty (err=0x0) at util/error.c:152
 1  0x0000555555965ffd in error_report_err (err=0x0) at util/error.c:157
 2  0x0000555555809c90 in pci_nic_init_nofail (nd=0x555555e49860 <nd_table>, rootbus=0x5555564409b0,
    default_model=0x55555598c37b "e1000", default_devaddr=0x0) at hw/pci/pci.c:1663
 3  0x0000555555691e42 in pc_nic_init (isa_bus=0x555556f71900, pci_bus=0x5555564409b0)
    at hw/i386/pc.c:1506
 4  0x000055555569396b in pc_init1 (machine=0x5555562abbf0, pci_enabled=1, kvmclock_enabled=1)
    at hw/i386/pc_piix.c:248
 5  0x0000555555693d27 in pc_init_pci (machine=0x5555562abbf0) at hw/i386/pc_piix.c:310
 6  0x000055555572ddf5 in main (argc=3, argv=0x7fffffffe018, envp=0x7fffffffe038) at vl.c:4226

The problem is that pci_nic_init_nofail() does not check whether the err
parameter from pci_nic_init has been set up and thus passes a NULL pointer
to error_report_err(). Fix it by correctly checking the err parameter.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agostm32f205: Fix SoC type name
Andreas Färber [Fri, 10 Apr 2015 14:37:56 +0000 (16:37 +0200)]
stm32f205: Fix SoC type name

The type name for the SoC device, unlike those of its sub-devices,
did not follow the QOM naming conventions. While the usage is internal
only, this is exposed through QMP and HMP, so fix it before release.

Cc: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Alistair Francis <alistair@alistair23.me>
Message-id: 1428676676-23056-1-git-send-email-afaerber@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agocris: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory
Dirk Müller [Sat, 4 Apr 2015 12:15:10 +0000 (14:15 +0200)]
cris: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory

Commit 0b183fc871:"memory: move mem_path handling to
memory_region_allocate_system_memory" split memory_region_init_ram and
memory_region_init_ram_from_file. Also it moved mem-path handling a step
up from memory_region_init_ram to memory_region_allocate_system_memory.

Therefore for any board that uses memory_region_init_ram directly,
-mem-path is not supported.

Fix this by replacing memory_region_init_ram with
memory_region_allocate_system_memory.

Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Dirk Mueller <dmueller@suse.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
9 years agoalpha: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory
Dirk Müller [Sat, 4 Apr 2015 12:14:14 +0000 (14:14 +0200)]
alpha: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory

Commit 0b183fc871:"memory: move mem_path handling to
memory_region_allocate_system_memory" split memory_region_init_ram and
memory_region_init_ram_from_file. Also it moved mem-path handling a step
up from memory_region_init_ram to memory_region_allocate_system_memory.

Therefore for any board that uses memory_region_init_ram directly,
-mem-path is not supported.

Fix this by replacing memory_region_init_ram with
memory_region_allocate_system_memory.

Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Dirk Mueller <dmueller@suse.com>
Acked-by: Richard Henderson <rth@twiddle.net>
Message-id: CAL5wTH64_ykF17cw2T1Axq8P3vCWm=6WbUJ3qJrLF-u+-MmzUw@mail.gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agolm32: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory
Dirk Müller [Sat, 4 Apr 2015 12:16:18 +0000 (14:16 +0200)]
lm32: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory

Commit 0b183fc871:"memory: move mem_path handling to
memory_region_allocate_system_memory" split memory_region_init_ram and
memory_region_init_ram_from_file. Also it moved mem-path handling a step
up from memory_region_init_ram to memory_region_allocate_system_memory.

Therefore for any board that uses memory_region_init_ram directly,
-mem-path is not supported.

Fix this by replacing memory_region_init_ram with
memory_region_allocate_system_memory.

Cc: Michael Walle <michael@walle.cc>
Signed-off-by: Dirk Mueller <dmueller@suse.com>
Acked-by: Michael Walle <michael@walle.cc>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoxen: limit guest control of PCI command register
Jan Beulich [Tue, 31 Mar 2015 14:18:03 +0000 (15:18 +0100)]
xen: limit guest control of PCI command register

Otherwise the guest can abuse that control to cause e.g. PCIe
Unsupported Request responses (by disabling memory and/or I/O decoding
and subsequently causing [CPU side] accesses to the respective address
ranges), which (depending on system configuration) may be fatal to the
host.

This is CVE-2015-2756 / XSA-126.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Message-id: alpine.DEB.2.02.1503311510300.7690@kaball.uk.xensource.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoconfigure: disable Archipelago by default and warn about libxseg GPLv3 license
Stefan Hajnoczi [Thu, 9 Apr 2015 13:52:18 +0000 (14:52 +0100)]
configure: disable Archipelago by default and warn about libxseg GPLv3 license

libxseg has changed license to GPLv3.  QEMU includes GPL "v2 only" code
which is not compatible with GPLv3.  This means the resulting binaries
may not be redistributable!

Disable Archipelago (libxseg) by default to prevent accidental license
violations.  Also warn if linking against libxseg is enabled to remind
the user.

Note that this commit does not constitute any advice about software
licensing.  If you have doubts you should consult a lawyer.

Cc: Chrysostomos Nanakos <cnanakos@grnet.gr>
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Reported-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Message-id: 1428587538-8765-1-git-send-email-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoMerge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
Peter Maydell [Thu, 9 Apr 2015 11:05:00 +0000 (12:05 +0100)]
Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

# gpg: Signature made Thu Apr  9 10:55:11 2015 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/block-pull-request:
  block/iscsi: handle zero events from iscsi_which_events
  aio: strengthen memory barriers for bottom half scheduling
  virtio-blk: correctly dirty guest memory
  qcow2: Fix header update with overridden backing file

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agotcg/tcg-op.c: Fix ld/st of 64 bit values on 32-bit bigendian hosts
Peter Maydell [Wed, 8 Apr 2015 19:57:09 +0000 (20:57 +0100)]
tcg/tcg-op.c: Fix ld/st of 64 bit values on 32-bit bigendian hosts

Commit 951c6300f7 out-of-lined the 32-bit-host versions of
tcg_gen_{ld,st}_i64, but in the process it inadvertently changed
an #ifdef HOST_WORDS_BIGENDIAN to #ifdef TCG_TARGET_WORDS_BIGENDIAN.
Since the latter doesn't get defined anywhere this meant we always
took the "LE host" codepath, and stored the two halves of the value
in the wrong order on BE hosts. This typically breaks any 64-bit
guest on a 32-bit BE host completely, and will have possibly more
subtle effects even for 32-bit guests.

Switch the ifdef back to HOST_WORDS_BIGENDIAN.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Tested-by: Andreas Färber <afaerber@suse.de>
Message-id: 1428523029-13620-1-git-send-email-peter.maydell@linaro.org

9 years agoblock/iscsi: handle zero events from iscsi_which_events
Peter Lieven [Tue, 7 Apr 2015 20:08:15 +0000 (22:08 +0200)]
block/iscsi: handle zero events from iscsi_which_events

newer libiscsi versions may return zero events from iscsi_which_events.

In this case iscsi_service will return immediately without any progress.
To avoid busy waiting for iscsi_which_events to change we deregister all
read and write handlers in this case and schedule a timer to periodically
check iscsi_which_events for changed events.

Next libiscsi version will introduce async reconnects and zero events
are returned while libiscsi is waiting for a reconnect retry.

Signed-off-by: Peter Lieven <pl@kamp.de>
Message-id: 1428437295-29577-1-git-send-email-pl@kamp.de
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
9 years agoaio: strengthen memory barriers for bottom half scheduling
Paolo Bonzini [Tue, 7 Apr 2015 15:16:19 +0000 (17:16 +0200)]
aio: strengthen memory barriers for bottom half scheduling

There are two problems with memory barriers in async.c.  The fix is
to use atomic_xchg in order to achieve sequential consistency between
the scheduling of a bottom half and the corresponding execution.

First, if bh->scheduled is already 1 in qemu_bh_schedule, QEMU does
not execute a memory barrier to order any writes needed by the callback
before the read of bh->scheduled.  If the other side sees req->state as
THREAD_ACTIVE, the callback is not invoked and you get deadlock.

Second, the memory barrier in aio_bh_poll is too weak.  Without this
patch, it is possible that bh->scheduled = 0 is not "published" until
after the callback has returned.  Another thread wants to schedule the
bottom half, but it sees bh->scheduled = 1 and does nothing.  This causes
a lost wakeup.  The memory barrier should have been changed to smp_mb()
in commit 924fe12 (aio: fix qemu_bh_schedule() bh->ctx race condition,
2014-06-03) together with qemu_bh_schedule()'s.  Guess who reviewed
that patch?

Both of these involve a store and a load, so they are reproducible on
x86_64 as well.  It is however much easier on aarch64, where the
libguestfs test suite triggers the bug fairly easily.  Even there the
failure can go away or appear depending on compiler optimization level,
tracing options, or even kernel debugging options.

Paul Leveille however reported how to trigger the problem within 15
minutes on x86_64 as well.  His (untested) recipe, reproduced here
for reference, is the following:

   1) Qcow2 (or 3) is critical – raw files alone seem to avoid the problem.

   2) Use “cache=directsync” rather than the default of
   “cache=none” to make it happen easier.

   3) Use a server with a write-back RAID controller to allow for rapid
   IO rates.

   4) Run a random-access load that (mostly) writes chunks to various
   files on the virtual block device.

      a. I use ‘diskload.exe c:25’, a Microsoft HCT load
         generator, on Windows VMs.

      b. Iometer can probably be configured to generate a similar load.

   5) Run multiple VMs in parallel, against the same storage device,
   to shake the failure out sooner.

   6) IvyBridge and Haswell processors for certain; not sure about others.

A similar patch survived over 12 hours of testing, where an unpatched
QEMU would fail within 15 minutes.

This bug is, most likely, also the cause of failures in the libguestfs
testsuite on AArch64.

Thanks to Laszlo Ersek for initially reporting this bug, to Stefan
Hajnoczi for suggesting closer examination of qemu_bh_schedule, and to
Paul for providing test input and a prototype patch.

Reported-by: Laszlo Ersek <lersek@redhat.com>
Reported-by: Paul Leveille <Paul.Leveille@stratus.com>
Reported-by: John Snow <jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1428419779-26062-1-git-send-email-pbonzini@redhat.com
Suggested-by: Paul Leveille <Paul.Leveille@stratus.com>
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
9 years agoarm: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory
Dirk Müller [Sat, 4 Apr 2015 12:24:38 +0000 (14:24 +0200)]
arm: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory

Commit 0b183fc871:"memory: move mem_path handling to
memory_region_allocate_system_memory" split memory_region_init_ram and
memory_region_init_ram_from_file. Also it moved mem-path handling a step
up from memory_region_init_ram to memory_region_allocate_system_memory.

Therefore for any board that uses memory_region_init_ram directly,
-mem-path is not supported.

Fix this by replacing memory_region_init_ram with
memory_region_allocate_system_memory.

Signed-off-by: Dirk Mueller <dmueller@suse.com>
Message-id: CAL5wTH4UHYKpJF=dLJfFzxpufjY189chnCow47-ySuLf8GLbug@mail.gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agovirtio-blk: correctly dirty guest memory
Paolo Bonzini [Thu, 2 Apr 2015 17:50:44 +0000 (19:50 +0200)]
virtio-blk: correctly dirty guest memory

After qemu_iovec_destroy, the QEMUIOVector's size is zeroed and
the zero size ultimately is used to compute virtqueue_push's len
argument.  Therefore, reads from virtio-blk devices did not
migrate their results correctly.  (Writes were okay).

Save the size in virtio_blk_handle_request, and use it when the request
is completed.

Based on a patch by Wen Congyang.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Message-id: 1427997044-392-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
9 years agoqcow2: Fix header update with overridden backing file
Kevin Wolf [Tue, 7 Apr 2015 13:03:16 +0000 (15:03 +0200)]
qcow2: Fix header update with overridden backing file

In recent qemu versions, it is possible to override the backing file
name and format that is stored in the image file with values given at
runtime. In such cases, the temporary override could end up in the
image header if the qcow2 header was updated, while obviously correct
behaviour would be to leave the on-disk backing file path/format
unchanged.

Fix this and add a test case for it.

Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1428411796-2852-1-git-send-email-kwolf@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
9 years agoMerge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2015-04-04' into...
Peter Maydell [Tue, 7 Apr 2015 13:33:46 +0000 (14:33 +0100)]
Merge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2015-04-04' into staging

trivial patches for 2015-04-04

# gpg: Signature made Sat Apr  4 08:07:49 2015 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>"

* remotes/mjt/tags/pull-trivial-patches-2015-04-04:
  vhost: fix typo in vq_index description
  gitignore: Ignore more .pod files.
  target-tricore: Fix check which was always false
  target-i386: remove superfluous TARGET_HAS_SMC macro
  pcspk: Fix I/O port name

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agovhost: fix typo in vq_index description
Greg Kurz [Thu, 26 Mar 2015 11:10:29 +0000 (12:10 +0100)]
vhost: fix typo in vq_index description

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
9 years agogitignore: Ignore more .pod files.
Eric Blake [Fri, 20 Mar 2015 16:30:44 +0000 (10:30 -0600)]
gitignore: Ignore more .pod files.

kvm_stat.{1,pod} started showing up as untracked files in my
directory, and I nearly accidentally merged them into a commit
with my usual habit of 'git add .'.  Rather than spelling out
each such file, just ignore the entire pattern.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
9 years agotarget-tricore: Fix check which was always false
Stefan Weil [Sat, 21 Mar 2015 13:44:58 +0000 (14:44 +0100)]
target-tricore: Fix check which was always false

With a mask value of 0x00400000, the result will never be 1.
This fixes a Coverity warning.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
9 years agotarget-i386: remove superfluous TARGET_HAS_SMC macro
Emilio G. Cota [Sat, 21 Mar 2015 17:29:09 +0000 (13:29 -0400)]
target-i386: remove superfluous TARGET_HAS_SMC macro

Signed-off-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
9 years agopcspk: Fix I/O port name
Jan Kiszka [Thu, 19 Mar 2015 12:08:40 +0000 (13:08 +0100)]
pcspk: Fix I/O port name

Probably a copy&paste bug. Fixing it helps identifying the device model
behind port 0x61.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
9 years agoUpdate version for v2.3.0-rc2 release
Peter Maydell [Thu, 2 Apr 2015 17:02:02 +0000 (18:02 +0100)]
Update version for v2.3.0-rc2 release

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoglib-compat: fix problems with not-quite glib 2.22
Cornelia Huck [Thu, 2 Apr 2015 15:17:45 +0000 (17:17 +0200)]
glib-compat: fix problems with not-quite glib 2.22

Commit 89b516d8b9444ece8ccabb322a9389587c7a7b83 ("glib: add
compatibility interface for g_get_monotonic_time()") aimed
at making qemu build with old glib versions. At least SLES11SP3,
however, contains a backport of g_get_monotonic_time() while
keeping the reported glib version at 2.22.

Let's work around this by a strategically placed #define.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1427987865-433-2-git-send-email-cornelia.huck@de.ibm.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoMerge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
Peter Maydell [Thu, 2 Apr 2015 14:53:16 +0000 (15:53 +0100)]
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

Another round of small fixes.  I am not including the
virtio-blk fix, because Wen only posted a prototype and the changes
I made were pretty large.  It definitely needs another pair of eyes
(but it is a 2.3 regression and a blocker).

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* remotes/bonzini/tags/for-upstream:
  Use $(MAKE) for recursive make
  kvm-all: Sync dirty-bitmap from kvm before kvm destroy the corresponding dirty_bitmap
  util/qemu-config: fix regression of qmp_query_command_line_options
  target-i386: clear bsp bit when designating bsp
  qga: fitering out -fstack-protector-strong
  target-i386: save 64-bit CR3 in 64-bit SMM state save area

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoUse $(MAKE) for recursive make
Ed Maste [Wed, 1 Apr 2015 17:58:38 +0000 (13:58 -0400)]
Use $(MAKE) for recursive make

On BSDs "make" is typically BSD make, while "gmake" is GNU make.

Signed-off-by: Ed Maste <emaste@freebsd.org>
Message-Id: <1427911118-21905-1-git-send-email-emaste@freebsd.org>
[Fix $(INSTALLER) too as reported by Fam Zheng. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agokvm-all: Sync dirty-bitmap from kvm before kvm destroy the corresponding dirty_bitmap
zhanghailiang [Thu, 2 Apr 2015 19:26:31 +0000 (19:26 +0000)]
kvm-all: Sync dirty-bitmap from kvm before kvm destroy the corresponding dirty_bitmap

Sometimes, we destroy the dirty_bitmap in kvm_memory_slot before any sync action
occur, this bit in dirty_bitmap will be missed, and which will lead the corresponding
dirty pages to be missed in migration.

This usually happens when do migration during VM's Start-up or Reboot.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
[Use s->migration_log instead of exec.c's in_migration. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agoutil/qemu-config: fix regression of qmp_query_command_line_options
Marcel Apfelbaum [Wed, 1 Apr 2015 16:47:21 +0000 (19:47 +0300)]
util/qemu-config: fix regression of qmp_query_command_line_options

Commit 49d2e64 (machine: remove qemu_machine_opts global list)
made machine options specific to machine sub-type, leaving
the qemu_machine_opts desc array empty. Sadly this is the place
qmp_query_command_line_options is looking for supported options.

As a fix for for 2.3 the machine_qemu_opts (the generic ones)
are restored only for qemu-config scope.
We need to find a better fix for 2.4.

Reported-by: Tony Krowiak <akrowiak@linux.vnet.ibm.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Message-Id: <1427906841-1576-1-git-send-email-marcel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agotarget-i386: clear bsp bit when designating bsp
Nadav Amit [Wed, 1 Apr 2015 23:58:36 +0000 (02:58 +0300)]
target-i386: clear bsp bit when designating bsp

Since the BSP bit is writable on real hardware, during reset all the CPUs which
were not chosen to be the BSP should have their BSP bit cleared. This fix is
required for KVM to work correctly when it changes the BSP bit.

An additional fix is required for QEMU tcg to allow software to change the BSP
bit.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Message-Id: <1427932716-11800-1-git-send-email-namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agoqga: fitering out -fstack-protector-strong
Joseph Hindin [Wed, 1 Apr 2015 16:38:57 +0000 (19:38 +0300)]
qga: fitering out -fstack-protector-strong

configure script may add -fstack-protector-strong option instead
of -fstack-protector-all, depending on availability ( see
commit 63678e17c ). Both options have to by filtered out for
qga-vss.dll, otherwise MinGW cross-compilation fails at linking
stage.

Signed-off-by: Joseph Hindin <jhindin@daynix.com>
Message-Id: <1427906337-20805-2-git-send-email-jhindin@daynix.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agotarget-i386: save 64-bit CR3 in 64-bit SMM state save area
Paolo Bonzini [Thu, 2 Apr 2015 12:13:55 +0000 (14:13 +0200)]
target-i386: save 64-bit CR3 in 64-bit SMM state save area

The x86_64 CR3 register is 64 bits wide, save all of them!

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agoMerge remote-tracking branch 'remotes/armbru/tags/pull-hw-2015-04-02' into staging
Peter Maydell [Thu, 2 Apr 2015 13:36:57 +0000 (14:36 +0100)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-hw-2015-04-02' into staging

hw: Contain drive, serial, parallel, net misuse

# gpg: Signature made Thu Apr  2 14:32:00 2015 BST 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/pull-hw-2015-04-02:
  sysbus: Make devices picking up backends unavailable with -device
  sdhci: Make device "sdhci-pci" unavailable with -device
  hw: Mark device misusing nd_table[] FIXME
  hw: Mark devices picking up char backends actively FIXME
  hw: Mark devices picking up block backends actively FIXME

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agosysbus: Make devices picking up backends unavailable with -device
Markus Armbruster [Mon, 23 Mar 2015 18:34:40 +0000 (19:34 +0100)]
sysbus: Make devices picking up backends unavailable with -device

Device models aren't supposed to go on fishing expeditions for
backends.  They should expose suitable properties for the user to set.
For onboard devices, board code sets them.

A number of sysbus devices pick up block backends in their init() /
instance_init() methods with drive_get_next() instead: sl-nand,
milkymist-memcard, pl181, generic-sdhci.

Likewise, a number of sysbus devices pick up character backends in
their init() / realize() methods with qemu_char_get_next_serial():
cadence_uart, digic-uart, etraxfs,serial, lm32-juart, lm32-uart,
milkymist-uart, pl011, stm32f2xx-usart, xlnx.xps-uartlite.

All these mistakes are already marked FIXME.  See the commit that
added these FIXMEs for a more detailed explanation of what's wrong.

Fortunately, only machines ppce500 and pseries-* support -device with
sysbus devices, and none of the devices above is supported with these
machines.

Set cannot_instantiate_with_device_add_yet to preserve our luck.

Cc: Andrzej Zaborowski <balrogg@gmail.com>
Cc: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Cc: Antony Pavlov <antonynpavlov@gmail.com>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Michael Walle <michael@walle.cc>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
9 years agosdhci: Make device "sdhci-pci" unavailable with -device
Markus Armbruster [Mon, 23 Mar 2015 18:22:10 +0000 (19:22 +0100)]
sdhci: Make device "sdhci-pci" unavailable with -device

Device models aren't supposed to go on fishing expeditions for
backends.  They should expose suitable properties for the user to set.
For onboard devices, board code sets them.

"sdhci-pci" picks up its block backend in its realize() method with
drive_get_next() instead.  Already marked FIXME.  See the commit that
added the FIXME for a more detailed explanation of what's wrong.

We can't fix this in time for the release, but since the device is new
in 2.3, we can set cannot_instantiate_with_device_add_yet to disable
it before this mistake becomes ABI, and we have to support command
lines like

    $ qemu -drive if=sd -drive if=sd,file=sd.img -device sdhci-pci -device sdhci-pci

forever.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
9 years agohw: Mark device misusing nd_table[] FIXME
Markus Armbruster [Wed, 25 Mar 2015 10:35:25 +0000 (11:35 +0100)]
hw: Mark device misusing nd_table[] FIXME

NICs defined with -net nic are for board initialization to wire up.
Board code examines nd_table[] to find them, and creates devices with
their qdev NIC properties set accordingly.

Except "allwinner-a10" goes on a fishing expedition for NIC
configuration instead of exposing the usual NIC properties for board
code to set: it uses nd_table[0] in its instance_init() method.

Picking up the first -net nic option's configuration that way works
when the device is created by board code.  But it's inappropriate for
-device and device_add.  Not only is it inconsistent with how the
other block device models work (they get their configuration from
properties "mac", "vlan", "netdev"), it breaks when nd_table[0] has
been picked up by the board or a previous -device / device_add
already.

Example:

    $ qemu-system-arm -S -M cubieboard -device allwinner-a10
    qemu-system-arm: -device allwinner-a10: Property 'allwinner-emac.netdev' can't take value 'hub0port0', it's in use
    Aborted (core dumped)

It also breaks in other entertaining ways:

    $ qemu-system-arm -M highbank -device allwinner-a10
    qemu-system-arm: -device allwinner-a10: Unsupported NIC model: xgmac
    $ qemu-system-arm -M highbank -net nic,model=allwinner-emac -device allwinner-a10
    qemu-system-arm: Unsupported NIC model: allwinner-emac

Mark the mistake with a FIXME comment.

Cc: Li Guang <lig.fnst@cn.fujitsu.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
9 years agohw: Mark devices picking up char backends actively FIXME
Markus Armbruster [Wed, 25 Mar 2015 08:29:20 +0000 (09:29 +0100)]
hw: Mark devices picking up char backends actively FIXME

Character devices defined with -serial and -parallel are for board
initialization to wire up.  Board code examines serial_hds[] and
parallel_hds[] to find them, and creates devices with their qdev
chardev properties set accordingly.

Except a few devices go on a fishing expedition for a suitable backend
instead of exposing a chardev property for board code to set: they use
serial_hds[] (often via qemu_char_get_next_serial()) or parallel_hds[]
in their realize() or init() method to connect to a backend.

Picking up backends that way works when the devices are created by
board code.  But it's inappropriate for -device or device_add.  Not
only is it inconsistent with how the other characrer device models
work (they connect to a backend explicitly identified by a "chardev"
property), it breaks when the backend has been picked up by the board
or a previous -device / device_add already.

Example:

    $ qemu-system-ppc64 -M bamboo -S -device i82378 -device pc87312 -device pc87312
    qemu-system-ppc64: -device pc87312: Property 'isa-parallel.chardev' can't take value 'parallel0', it's in use

Mark them with suitable FIXME comments.

Cc: Li Guang <lig.fnst@cn.fujitsu.com>
Cc: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Cc: Antony Pavlov <antonynpavlov@gmail.com>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Cc: "Andreas Färber" <andreas.faerber@web.de>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
9 years agohw: Mark devices picking up block backends actively FIXME
Markus Armbruster [Mon, 23 Mar 2015 18:03:13 +0000 (19:03 +0100)]
hw: Mark devices picking up block backends actively FIXME

Drives defined with if!=none are for board initialization to wire up.
Board code calls drive_get() or similar to find them, and creates
devices with their qdev drive properties set accordingly.

Except a few devices go on a fishing expedition for a suitable backend
instead of exposing a drive property for board code to set: they call
driver_get() or drive_get_next() in their realize() or init() method
to implicitly connect to the "next" backend with a certain interface
type.

Picking up backends that way works when the devices are created by
board code.  But it's inappropriate for -device or device_add.  Not
only is this inconsistent with how the other block device models work
(they connect to a backend explicitly identified by a "drive"
property), it breaks when the "next" backend has been picked up by the
board already.

Example:

    $ qemu-system-arm -S -M connex -pflash flash.img -device ssi-sd
    Aborted (core dumped)

Mark them with suitable FIXME comments.

Cc: Andrzej Zaborowski <balrogg@gmail.com>
Cc: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Cc: "Andreas Färber" <andreas.faerber@web.de>
Cc: Michael Walle <michael@walle.cc>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
9 years agohw/arm/vexpress: Don't double-free flash filename
Peter Maydell [Thu, 2 Apr 2015 09:52:14 +0000 (10:52 +0100)]
hw/arm/vexpress: Don't double-free flash filename

Commits 6e05a12f8f7f and db25a1581 both attempt to fix the
same "failed to free memory containing flash filename" bug,
with the effect that when they were both applied we ended
up freeing the memory twice. Delete the spurious extra free.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Message-id: 1427968334-14527-1-git-send-email-peter.maydell@linaro.org

9 years agohw/arm/virt: Fix corruption due to double free
Shannon Zhao [Thu, 2 Apr 2015 03:07:06 +0000 (11:07 +0800)]
hw/arm/virt: Fix corruption due to double free

As 4de9a88(hw/arm/virt: Fix memory leak reported by Coverity)
and 6e05a12(arm: fix memory leak) both handle the memory leak
reported by Coverity, this cause qemu corruption due to
double free.

Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Message-id: 1427944026-8968-1-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agoMerge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20150401' into...
Peter Maydell [Wed, 1 Apr 2015 17:13:21 +0000 (18:13 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20150401' into staging

target-arm:
 * Fix broken migration on AArch64 KVM
 * Fix minor memory leaks in virt, vexpress, highbank
 * Honour requested filename when loading highbank rom image

# gpg: Signature made Wed Apr  1 18:06:09 2015 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20150401:
  target-arm: kvm64 fix save/restore of SPSR regs
  target-arm: kvm64 sync FP register state
  hw/intc: arm_gic_kvm.c restore config first
  target-arm: kvm: save/restore mp state
  target-arm: Store SPSR_EL1 state in banked_spsr[1] (SPSR_svc)
  hw/arm/virt: Fix memory leak reported by Coverity
  hw/arm/vexpress: Fix memory leak reported by Coverity
  hw/arm/highbank: Fix resource leak and wrong image loading

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agotarget-arm: kvm64 fix save/restore of SPSR regs
Alex Bennée [Wed, 1 Apr 2015 16:57:30 +0000 (17:57 +0100)]
target-arm: kvm64 fix save/restore of SPSR regs

The current code was negatively indexing the cpu state array and not
synchronizing banked spsr register state with the current mode's spsr
state, causing occasional failures with migration.

Some munging is done to take care of the aarch64 mapping and also to
ensure the most current value of the spsr is updated to the banked
registers (relevant for KVM<->TCG migration).

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agotarget-arm: kvm64 sync FP register state
Alex Bennée [Wed, 1 Apr 2015 16:57:30 +0000 (17:57 +0100)]
target-arm: kvm64 sync FP register state

For migration to work we need to sync all of the register state. This is
especially noticeable when GCC starts using FP registers as spill
registers even with integer programs.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agohw/intc: arm_gic_kvm.c restore config first
Alex Bennée [Wed, 1 Apr 2015 16:57:30 +0000 (17:57 +0100)]
hw/intc: arm_gic_kvm.c restore config first

As there is logic to deal with the difference between edge and level
triggered interrupts in the kernel we must ensure it knows the
configuration of the IRQs before we restore the pending state.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9 years agotarget-arm: kvm: save/restore mp state
Alex Bennée [Wed, 1 Apr 2015 16:57:30 +0000 (17:57 +0100)]
target-arm: kvm: save/restore mp state

This adds the saving and restore of the current Multi-Processing state
of the machine. While the KVM_GET/SET_MP_STATE API exposes a number of
potential states for x86 we only use two for ARM. Either the process is
running or not. We then save this state into the cpu_powered TCG state
to avoid changing the serialisation format.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>