Commit Graph

47393 Commits

Author SHA1 Message Date
Paolo Bonzini
2c5e564f4d net: fix incorrect access to pointer
This is not dereferencing the pointer, and instead checking only
the value of the pointer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-07-18 16:16:49 +08:00
Paolo Bonzini
1ac6c07f42 e1000e: fix incorrect access to pointer
This is not dereferencing the pointer, and instead checking only
the value of the pointer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-07-18 16:16:20 +08:00
Thomas Huth
159d2e39a8 ppc: Yet another fix for the huge page support detection mechanism
Commit 86b50f2e1b ("Disable huge page support if it is not available
for main RAM") already made sure that huge page support is not announced
to the guest if the normal RAM of non-NUMA configurations is not backed
by a huge page filesystem. However, there is one more case that can go
wrong: NUMA is enabled, but the RAM of the NUMA nodes are not configured
with huge page support (and only the memory of a DIMM is configured with
it). When QEMU is started with the following command line for example,
the Linux guest currently crashes because it is trying to use huge pages
on a memory region that does not support huge pages:

 qemu-system-ppc64 -enable-kvm ... -m 1G,slots=4,maxmem=32G -object \
   memory-backend-file,policy=default,mem-path=/hugepages,size=1G,id=mem-mem1 \
   -device pc-dimm,id=dimm-mem1,memdev=mem-mem1 -smp 2 \
   -numa node,nodeid=0 -numa node,nodeid=1

To fix this issue, we've got to make sure to disable huge page support,
too, when there is a NUMA node that is not using a memory backend with
huge page support.

Fixes: 86b50f2e1b
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:52:19 +10:00
Paolo Bonzini
b56d417b8d target-ppc: fix left shift overflow in hpte_page_shift
ps->pte_enc is a 32-bit value, which is shifted left and then compared
to a 64-bit value.  It needs a cast before the shift.

Reported by Coverity.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:45:44 +10:00
Thomas Huth
28f3331887 ppc/mmu-hash64: Remove duplicated #include statement
No need to include error-report.h twice here.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:40:27 +10:00
Greg Kurz
c4dfc14b55 ppc: abort if compat property contains an unknown value
It is not possible to set the compat property to an unknown value with
powerpc_set_compat(). Something must have gone terribly wrong in QEMU,
if we detect an "Internal error" in powerpc_get_compat(). Let's abort then.

This patch also drops the "max_compat ? *max_compat : -1" construct. It is
useless since max_compat is dereferenced a few lines above.

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:40:27 +10:00
Bharata B Rao
5cbc64de25 spapr: Ensure CPU cores are added contiguously and removed in LIFO order
If CPU core addition or removal is allowed in random order leading to
holes in the core id range (and hence in the cpu_index range), migration
can fail as migration with holes in cpu_index range isn't yet handled
correctly.

Prevent this situation by enforcing the addition in contiguous order
and removal in LIFO order so that we never end up with holes in
cpu_index range.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:40:27 +10:00
David Gibson
21bb3093e6 vfio/spapr: Remove stale ioctl() call
This ioctl() call to VFIO_IOMMU_SPAPR_TCE_REMOVE was left over from an
earlier version of the code and has since been folded into
vfio_spapr_remove_window().

It wasn't caught because although the argument structure has been removed,
the libc function remove() means this didn't trigger a compile failure.
The ioctl() was also almost certain to fail silently and harmlessly with
the bogus argument, so this wasn't caught in testing.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-07-18 10:40:27 +10:00
Benjamin Herrenschmidt
36a24df84a ppc: Fix support for odd MSR combinations
MacOS uses an architecturally illegal MSR combination that
seems nonetheless supported by 32-bit processors, which is
to have MSR[PR]=1 and one or more of MSR[DR/IR/EE]=0.

This adds support for it. To work properly we need to also
properly include support for PR=1,{I,D}R=0 to the MMU index
used by the qemu TLB.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:40:27 +10:00
Mark Cave-Ayland
2df778967b dbdma: reset io->processing flag for unassigned DBDMA channel rw accesses
Otherwise MacOS 9 hangs upon shutdown.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:40:27 +10:00
Mark Cave-Ayland
894993905d dbdma: set FLUSH bit upon reception of flush command for unassigned DBDMA channels
This fixes MacOS 9 whereby it continually flushes and polls the status bits
until they are set to indicate a successful flush.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:40:27 +10:00
Mark Cave-Ayland
e12f50b900 dbdma: fix load_word/store_word value endianness
The values to read/write to/from physical memory are copied directly to the
physical address with no endian swapping required.

Also add some extra information to debugging output while we are here.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:40:27 +10:00
Mark Cave-Ayland
3f0d4128dc dbdma: fix endian of DBDMA_CMDPTR_LO during branch
The current DBDMA command is stored in little-endian format, so make sure
we convert it to match our CPU when updating the DBDMA_CMDPTR_LO register.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:40:27 +10:00
Mark Cave-Ayland
3e49c43940 dbdma: add per-channel debugging enabled via DEBUG_DBDMA_CHANMASK
By default large amounts of DBDMA debugging are produced when often it is just
1 or 2 channels that are of interest. Introduce DEBUG_DBDMA_CHANMASK to allow
the developer to select the channels of interest at compile time, and then
further add the extra channel information to each debug statement where
possible.

Also clearly mark the start/end of DBDMA_run_bh to allow tracking the bottom
half execution.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:40:27 +10:00
Mark Cave-Ayland
ba0b17dd8f dbdma: always define DBDMA_DPRINTF and enable debug with DEBUG_DBDMA
Enabling DBDMA_DPRINTF unconditionally ensures that any errors in debug
statements are picked up immediately.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:40:27 +10:00
Greg Kurz
44d691f7d9 spapr: fix core unplug crash
If the host has 8 threads/core and the guest is started with:

-smp cores=1,threads=4,maxcpus=12

It is possible to crash QEMU by doing:

(qemu) device_add host-spapr-cpu-core,core-id=16,id=foo
(qemu) device_del foo
Segmentation fault

This happens because spapr_core_unplug() assumes cpu_dt_id == core_id.
As long as cpu_dt_id is derived from the non-table cpu_index, this is
only true when you plug cores with contiguous ids.

It is safer to be consistent: the DR connector was created with an
index that is immediately written to cc->core_id, and spapr_core_plug()
also relies on cc->core_id.

Let's use it also in spapr_core_unplug().

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-18 10:40:27 +10:00
Sergey Fedorov
ca7d8e1c9c cpu-exec: Move down some declarations in cpu_exec()
This will fix a compiler warning with -Wclobbered:

http://lists.nongnu.org/archive/html/qemu-devel/2016-07/msg03347.html

Reported-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Message-Id: <20160715193123.28113-1-sergey.fedorov@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-07-17 09:59:22 +02:00
Peter Lieven
101420b886 exec: avoid realloc in phys_map_node_reserve
this is the first step in reducing the brk heap fragmentation
created by the map->nodes memory allocation. Since the introduction
of RCU the freeing of the PhysPageMaps is delayed so that sometimes
several hundred are allocated at the same time.

Even worse the memory for map->nodes is allocated and shortly
afterwards reallocated. Since the number of nodes it grows
to in the end is the same for all PhysPageMaps remember this value
and at least avoid the reallocation.

The large number of simultaneous allocations (about 450 x 70kB in
my configuration) has to be addressed later.

Signed-off-by: Peter Lieven <pl@kamp.de>
Message-Id: <1468577030-21097-1-git-send-email-pl@kamp.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-07-17 09:59:21 +02:00
Stefan Hajnoczi
d211bd6016 checkpatch: consider git extended headers valid patches
Renames look like this with git-diff(1) when diff.renames = true is set:

  diff --git a/a b/b
  similarity index 100%
  rename from a
  rename to b

This raises the "Does not appear to be a unified-diff format patch"
error because checkpatch.pl only considers a diff valid if it contains
at least one "@@" hunk.

This patch accepts renames and copies too so that checkpatch.pl exits
successfully when a diff only renames/copies files.  The git diff
extended header format is described on the git-diff(1) man page.

Reported-by: Colin Lord <clord@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <1468576014-28788-1-git-send-email-stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-07-17 09:59:21 +02:00
Paolo Bonzini
8cc46787b5 megasas: remove useless check for cmd->frame
megasas_enqueue_frame always returns with non-NULL cmd->frame.
Remove the "else" part as it is dead code.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-07-17 09:59:21 +02:00
Paolo Bonzini
8bff06a0bb compiler: never omit assertions if using a static analysis tool
Assertions help both Coverity and the clang static analyzer avoid
false positives, but on the other hand both are confused when
the condition is compiled as (void)(x != FOO).  Always expand
assertion macros when using Coverity or clang, through a new
QEMU_STATIC_ANALYSIS preprocessor symbol.

This fixes a couple false positives in TCG.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-07-17 09:59:21 +02:00
Antonio Borneo
3cbeb52467 hw/i386: add device tree support
With "-dtb" on command-line:
- append the device tree blob to the kernel image;
- pass the blob's pointer to the kernel through setup_data, as
  requested by upstream kernel commit da6b737b9ab7 ("x86: Add
  device tree support").

The device tree blob is passed as-is to the guest; none of its
fields is modified nor updated. This is not an issue; the kernel
commit above uses the device tree only as an extension to the
traditional kernel configuration.

To: "Michael S. Tsirkin" <mst@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
To: Richard Henderson <rth@twiddle.net>
To: Eduardo Habkost <ehabkost@redhat.com>
Cc: qemu-devel@nongnu.org
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Message-Id: <1459973054-2777-1-git-send-email-borneo.antonio@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-07-17 09:59:21 +02:00
Md Haris Iqbal
fd9a304830 Changed malloc to g_malloc, free to g_free in bsd-user/qemu.h
Signed-off-by: Md Haris Iqbal <haris.phnx@gmail.com>
Message-Id: <1459861743-4514-1-git-send-email-haris.phnx@gmail.com>
Reviewed-by: Sean Bruno <sbruno@freebsd.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-07-17 09:59:21 +02:00
Wei Jiangang
55ad781ca7 use g_path_get_dirname instead of dirname
Use g_path_get_basename to get the directory components of
a file name, and free its return when no longer needed.

Signed-off-by: Wei Jiangang <weijg.fnst@cn.fujitsu.com>
Message-Id: <1459997185-15669-3-git-send-email-weijg.fnst@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-07-17 09:59:21 +02:00
Peter Maydell
6b92bbfe81 Update OpenBIOS images
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Merge remote-tracking branch 'remotes/mcayland/tags/qemu-openbios-signed' into staging

Update OpenBIOS images

# gpg: Signature made Fri 15 Jul 2016 15:22:36 BST
# gpg:                using RSA key 0x5BC2C56FAE0F321F
# gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>"
# Primary key fingerprint: CC62 1AB9 8E82 200D 915C  C9C4 5BC2 C56F AE0F 321F

* remotes/mcayland/tags/qemu-openbios-signed:
  Update OpenBIOS images to b747b6a built from submodule.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-15 16:56:08 +01:00
Mark Cave-Ayland
5cebd885d0 Update OpenBIOS images to b747b6a built from submodule.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2016-07-15 15:18:15 +01:00
Peter Lieven
66668d197f vnc-tight: fix regression with libxenstore
commit 095497ff added thread local storage for the color counting
palette. Unfortunately, a VncPalette is about 7kB on a x86_64 system.
This memory is reserved from the stack of every thread and it
exhausted the stack space of a libxenstore thread.

Fix this by allocating memory only for the VNC encoding thread.

Fixes: 095497ffc6
Reported-by: Juergen Gross <jgross@suse.com>
Tested-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-id: 1468575911-20656-1-git-send-email-pl@kamp.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-07-15 12:11:55 +02:00
Herongguang (Stephen)
3f7e51bca3 vnc-enc-tight: fix off-by-one bug
In tight_encode_indexed_rect32, buf(or src)’s size is count. In for loop,
the logic is supposed to be that i is an index into src, i should be
incremented when incrementing src.

This is broken when src is incremented but i is not before while loop,
resulting in off-by-one bug in while loop.

Signed-off-by: He Rongguang <herongguang.he@huawei.com>
Message-id: 5784B8EB.7010008@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-07-15 12:11:55 +02:00
Gerd Hoffmann
5a8be0f73d vnc: make sure we finish disconnect
It may happen that vnc connections linger in disconnecting state forever
because VncState happens to be in a state where vnc_update_client()
exists early and never reaches the vnc_disconnect_finish() call at the
bottom of the function.  Fix that by doing an additinal check at the
start of the function.

https://bugzilla.redhat.com/show_bug.cgi?id=1352799

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1468405280-2571-1-git-send-email-kraxel@redhat.com
2016-07-15 12:00:06 +02:00
Peter Maydell
14c7d99333 target-arm queue:
* add virtio-mmio transport base address to device path
    (avoid an assertion failure with multiple virtio-scsi-devices)
  * revert hw/ptimer commit 5a50307 which causes regressions on
    SPARC guests
  * use Neon to accelerate zero-page checking on AArch64 hosts
  * set the MPIDR for TCG to match how KVM does it (and fit with
    GICv2/GICv3 restrictions on SGI target lists)
  * add some missing AArch32 TLBI hypervisor TLB operations
  * m25p80: Fix QIOR/DIOR handling for Winbond
  * hw/misc: fix typo in Aspeed SCU hw-strap2 property name
  * ast2400: pretend DMAs are done for U-boot
  * ast2400: some minor code cleanups
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160714' into staging

target-arm queue:
 * add virtio-mmio transport base address to device path
   (avoid an assertion failure with multiple virtio-scsi-devices)
 * revert hw/ptimer commit 5a50307 which causes regressions on
   SPARC guests
 * use Neon to accelerate zero-page checking on AArch64 hosts
 * set the MPIDR for TCG to match how KVM does it (and fit with
   GICv2/GICv3 restrictions on SGI target lists)
 * add some missing AArch32 TLBI hypervisor TLB operations
 * m25p80: Fix QIOR/DIOR handling for Winbond
 * hw/misc: fix typo in Aspeed SCU hw-strap2 property name
 * ast2400: pretend DMAs are done for U-boot
 * ast2400: some minor code cleanups

# gpg: Signature made Thu 14 Jul 2016 17:21:30 BST
# gpg:                using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20160714:
  ast2400: externalize revision numbers
  ast2400: pretend DMAs are done for U-boot
  ast2400: replace aspeed_smc_is_implemented()
  hw/misc: fix typo in Aspeed SCU hw-strap2 property name
  m25p80: Fix QIOR/DIOR handling for Winbond
  target-arm: Add missed AArch32 TLBI sytem registers
  hw/arm/virt: tcg: adjust MPIDR like KVM
  gic: provide defines for v2/v3 targetlist sizes
  target-arm: Use Neon for zero checking
  Revert "hw/ptimer: Perform counter wrap around if timer already expired"
  virtio-mmio: format transport base address in BusClass.get_dev_path

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 17:32:53 +01:00
Cédric Le Goater
79a9f323a8 ast2400: externalize revision numbers
AST2400_A0_SILICON_REV is defined twice. Fix this by including the
definition in the header file as well as the routine to check if a
silicon revision is supported. It will useful to reuse in other
controllers.

Let's add also AST2500_A0_SILICON_REV for future use.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1467994016-11678-5-git-send-email-clg@kaod.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:51:39 +01:00
Cédric Le Goater
2e1f05020b ast2400: pretend DMAs are done for U-boot
U-boot does SPI timing calibration using DMA tranfers. To let the
initialization continue, we fake success by setting the DMA status of
the Interrupt Control Register.

For the moment, DMA support is not required as it is not used in
normal operation.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1467994016-11678-4-git-send-email-clg@kaod.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:51:38 +01:00
Cédric Le Goater
97c2ed5dbd ast2400: replace aspeed_smc_is_implemented()
aspeed_smc_is_implemented() filters invalid registers in a peculiar
way. Let's remove it and open code the if conditions. It serves the
same purpose, the aesthetic is better, and new registers can easily be
added.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1467994016-11678-3-git-send-email-clg@kaod.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:51:38 +01:00
Cédric Le Goater
2ddfa2817b hw/misc: fix typo in Aspeed SCU hw-strap2 property name
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1467994016-11678-2-git-send-email-clg@kaod.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:51:38 +01:00
Marcin Krzeminski
fe84770528 m25p80: Fix QIOR/DIOR handling for Winbond
Winbond also support continuous read mode, but as an opposite for other
flash type read mode clock cycles are included to dummy cycles number.
This path add proper handling of read mode byte and update needed
dummy cycles. QPI mode and dummy cycles configuration are not supported.

Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1467809036-6986-1-git-send-email-marcin.krzeminski@nokia.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:51:38 +01:00
Sergey Sorokin
541ef8c2e7 target-arm: Add missed AArch32 TLBI sytem registers
Some PL2 related TLBI system registers are missed in AArch32
implementation. The patch fixes it.

Signed-off-by: Sergey Sorokin <afarallax@yandex.ru>
Message-id: 1468328885-3217862-1-git-send-email-afarallax@yandex.ru
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:51:37 +01:00
Andrew Jones
95eb49c8a3 hw/arm/virt: tcg: adjust MPIDR like KVM
KVM adjusts the MPIDR of guest vcpus based on the architecture of
the host, 32-bit vs. 64-bit, and, for 64-bit, also on the type of
GIC the guest is using. To be consistent and improve SGI efficiency
we make the same adjustments for TCG as 64-bit KVM hosts. We neglect
to add consistency with 32-bit KVM hosts, as that would reduce SGI
efficiency and KVM is expected to change.

As MPIDR is a system register, and thus guest visible, we only make
adjustments for current and later versioned machines.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 1467378129-23302-3-git-send-email-drjones@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:51:37 +01:00
Andrew Jones
c8efd802c4 gic: provide defines for v2/v3 targetlist sizes
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 1467378129-23302-2-git-send-email-drjones@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:51:37 +01:00
Vijay
7069532e3b target-arm: Use Neon for zero checking
Use Neon instructions to perform zero checking of
buffer. This is helps in reducing total migration time.

Use case: Idle VM live migration with 4 VCPUS and 8GB ram
running CentOS 7.

Without Neon, the Total migration time is 3.5 Sec

Migration status: completed
total time: 3560 milliseconds
downtime: 33 milliseconds
setup: 5 milliseconds
transferred ram: 297907 kbytes
throughput: 685.76 mbps
remaining ram: 0 kbytes
total ram: 8519872 kbytes
duplicate: 2062760 pages
skipped: 0 pages
normal: 69808 pages
normal bytes: 279232 kbytes
dirty sync count: 3

With Neon, the total migration time is 2.9 Sec

Migration status: completed
total time: 2960 milliseconds
downtime: 65 milliseconds
setup: 4 milliseconds
transferred ram: 299869 kbytes
throughput: 830.19 mbps
remaining ram: 0 kbytes
total ram: 8519872 kbytes
duplicate: 2064313 pages
skipped: 0 pages
normal: 70294 pages
normal bytes: 281176 kbytes
dirty sync count: 3

Signed-off-by: Vijaya Kumar K <vijayak@cavium.com>
Signed-off-by: Suresh <ksuresh@cavium.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1467190029-694-2-git-send-email-vijayak@cavium.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:51:36 +01:00
Dmitry Osipenko
56215da394 Revert "hw/ptimer: Perform counter wrap around if timer already expired"
Software should see timer counter wraparound only after IRQ being triggered.
This fixes regression introduced by the commit 5a50307 ("hw/ptimer: Perform
counter wrap around if timer already expired"), resulting in monotonic timer
jumping backwards on SPARC emulated machine running NetBSD guest OS, as
reported by Mark Cave-Ayland.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Message-id: 20160708132206.2080-1-digetx@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:51:36 +01:00
Laszlo Ersek
f58b39d2d5 virtio-mmio: format transport base address in BusClass.get_dev_path
At the moment the following QEMU command line triggers an assertion
failure (minimal reproducer by Cole):

  qemu-system-aarch64 \
    -machine virt-2.6,accel=tcg \
    -nodefaults \
    -no-user-config \
    -nographic -monitor stdio \
    -device virtio-scsi-device,id=scsi0 \
    -device virtio-scsi-device,id=scsi1 \
    -drive file=foo.img,format=raw,if=none,id=d0 \
    -device scsi-hd,bus=scsi0.0,drive=d0 \
    -drive file=foo.img,format=raw,if=none,id=d1 \
    -device scsi-hd,bus=scsi1.0,drive=d1

  qemu-system-aarch64: migration/savevm.c:615:
  vmstate_register_with_alias_id:
  Assertion `!se->compat || se->instance_id == 0' failed.

The reason is that the vmstate sections for the two scsi-hd devices are
not uniquely identifiable by name.

The direct parent buses of the scsi-hd devices -- scsi0.0 and scsi1.0 --
support the BusClass.get_dev_path member function. scsibus_get_dev_path()
formats a device path prefix with the help of its topologically parent
bus, and then appends the chan🆔lun triplet to it. For both scsi-hd
devices, this triplet is 0:0:0.

(Here we use "device path" in the QEMU migration sense, for vmstate
section identification, not in the OFW or UEFI device path senses.)

The virtio-scsi HBA is plugged into the virtio-mmio bus (implemented by
the internal VirtIOMMIOProxy device). This bus class
(TYPE_VIRTIO_MMIO_BUS) inherits, as its get_dev_path() member function,
the virtio_bus_get_dev_path() method from its parent class
(TYPE_VIRTIO_BUS).

virtio_bus_get_dev_path() does not format any kind of device address on
its own; "virtio addresses" are transport-specific. Therefore
virtio_bus_get_dev_path() asks the topologically parent bus of the proxy
object (implementing the specific virtio transport) to format the address
of the proxy object.

(For virtio-pci devices (where the proxy is an instance of VirtIOPCIProxy,
plugged into a PCI bus), this ends up in pcibus_get_dev_path().)

However, VirtIOMMIOProxy is usually (in practice: always) plugged into
"main-system-bus", the singleton TYPE_SYSTEM_BUS object. This BusClass
does not support formatting QEMU vmstate device paths at all (as
SysBusDevice objects can have zero or more IO ports and zero or more MMIO
regions). Hence the formatting request delegated from
virtio_bus_get_dev_path() gets answered with NULL.

The end result is that the two scsi-hd devices end up with the same device
path "0:0:0", which triggers the assert.

We can solve this by recognizing that virtio-mmio transports are
distinguished from each other by their base addresses in MMIO address
space. Implement virtio_mmio_bus_get_dev_path() as follows:

(1) The virtio device whose devpath is to be formatted resides on a
    virtio-mmio bus that is implemented by a VirtIOMMIOProxy object. Ask
    the parent bus of VirtIOMMIOProxy to format the device path of
    VirtIOMMIOProxy, as a path prefix. (This is identical to what
    virtio_bus_get_dev_path() does.)

(2) Append the base address of VirtIOMMIOProxy to the device path, such
    as:
    - virtio-mmio@000000000a003e00,
    - virtio-mmio@000000000a003c00.

Given that these device paths are placed in the migration stream, step (2)
above, if done unconditionally, would break migration. So make that step
conditional on a new VirtIOMMIOProxy property, which is enabled for 2.7
machine types and later.

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Cole Robinson <crobinso@redhat.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Kevin Zhao <kevin.zhao@linaro.org>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Tom Hanson <thomas.hanson@linaro.org>
Reported-by: Kevin Zhao <kevin.zhao@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 1467739394-28357-1-git-send-email-lersek@redhat.com
Fixes: https://bugs.launchpad.net/qemu/+bug/1594239
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:51:36 +01:00
Peter Maydell
1c8e93fb41 * Updated fw_cfg option ROM to include DMA support
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream-fwcfg' into staging

* Updated fw_cfg option ROM to include DMA support

# gpg: Signature made Thu 14 Jul 2016 14:51:06 BST
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# 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-fwcfg:
  Add optionrom compatible with fw_cfg DMA version

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 16:49:18 +01:00
Peter Maydell
22e28174ae Xtensa-related fixes:
- fix FLASH interface width for XTFPGA boards.
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/xtensa/tags/20160714-xtensa' into staging

Xtensa-related fixes:

- fix FLASH interface width for XTFPGA boards.

# gpg: Signature made Thu 14 Jul 2016 12:00:05 BST
# gpg:                using RSA key 0x51F9CC91F83FA044
# gpg: Good signature from "Max Filippov <max.filippov@cogentembedded.com>"
# gpg:                 aka "Max Filippov <jcmvbkbc@gmail.com>"
# Primary key fingerprint: 2B67 854B 98E5 327D CDEB  17D8 51F9 CC91 F83F A044

* remotes/xtensa/tags/20160714-xtensa:
  target-xtensa: xtfpga: fix FLASH interface width

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 15:57:28 +01:00
Marc Marí
b2a575a1c6 Add optionrom compatible with fw_cfg DMA version
This optionrom is based on linuxboot.S.

Signed-off-by: Marc Marí <markmb@redhat.com>
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Message-Id: <1464027093-24073-2-git-send-email-rjones@redhat.com>
[Add -fno-toplevel-reorder, support clang without -m16. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-07-14 15:50:52 +02:00
Peter Maydell
190c93c982 * SCSI scanner support
* fixes to qemu-char and net exit
 * FreeBSD fixes
 * Other small bugfixes
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* SCSI scanner support
* fixes to qemu-char and net exit
* FreeBSD fixes
* Other small bugfixes

# gpg: Signature made Wed 13 Jul 2016 12:30:11 BST
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# 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:
  hostmem: detect host backend memory is being used properly
  hostmem: fix QEMU crash by 'info memdev'
  char: do not use atexit cleanup handler
  net: do not use atexit for cleanup
  slirp: use exit notifier for slirp_smb_cleanup
  tap: use an exit notifier to call down_script
  util: Fix MIN_NON_ZERO
  qemu-sockets: use qapi_free_SocketAddress in cleanup
  disas: avoid including everything in headers compiled from C++
  json-streamer: fix double-free on exiting during a parse
  main-loop: check return value before using pointer
  Use "-s" instead of "--quiet" to resolve non-fatal build error on FreeBSD.
  scsi-bus: Use longer sense buffer with scanners
  scsi-bus: Add SCSI scanner support

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 13:44:06 +01:00
Max Filippov
f9a555e499 target-xtensa: xtfpga: fix FLASH interface width
FLASH chip on XTFPGA boards is connected with 16-bit-wide interface.
Latest U-Boot can see the difference and does not work correctly with
32-bit-wide interface.
Set FLASH chip 'width' property to 2.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2016-07-14 13:59:44 +03:00
Peter Maydell
9358450e98 Block layer patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Wed 13 Jul 2016 12:46:17 BST
# gpg:                using RSA key 0x7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream: (34 commits)
  iotests: Make 157 actually format-agnostic
  vvfat: Fix qcow write target driver specification
  hmp: show all of snapshot info on every block dev in output of 'info snapshots'
  hmp: use snapshot name to determine whether a snapshot is 'fully available'
  qemu-iotests: Test naming of throttling groups
  blockdev: Fix regression with the default naming of throttling groups
  vmdk: fix metadata write regression
  Improve block job rate limiting for small bandwidth values
  qcow2: Fix qcow2_get_cluster_offset()
  qemu-io: Use correct range limitations
  qcow2: Avoid making the L1 table too big
  qemu-img: Use strerror() for generic resize error
  block: Remove BB options from blockdev-add
  qemu-iotests: Test setting WCE with qdev
  block/qdev: Allow configuring rerror/werror with qdev properties
  commit: Fix use of error handling policy
  block/qdev: Allow configuring WCE with qdev properties
  block/qdev: Allow node name for drive properties
  coroutine: move entry argument to qemu_coroutine_create
  test-coroutine: prepare for the next patch
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 11:48:46 +01:00
Peter Maydell
5bb2399f9b target-sparc improvements, v4
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Merge remote-tracking branch 'remotes/rth/tags/pull-rth-20160712' into staging

target-sparc improvements, v4

# gpg: Signature made Tue 12 Jul 2016 19:04:33 BST
# gpg:                using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC  16A4 AD12 70CC 4DD0 279B

* remotes/rth/tags/pull-rth-20160712: (24 commits)
  target-sparc: Elide duplicate updates to fprs
  target-sparc: Use cpu_loop_exit_restore from helper_check_ieee_exceptions
  target-sparc: Use cpu_fsr in stfsr
  target-sparc: Use explicit writes to cpu_fsr
  target-sparc: Remove helper_ldf_asi, helper_stf_asi
  target-sparc: Directly implement block and short ldf/stf asis
  target-sparc: Directly implement easy ldf/stf asis
  target-sparc: Pass TCGMemOp constants to helper_ld/st_asi
  target-sparc: Fix obvious error in ASI_M_BFILL
  target-sparc: Directly implement easy ldd/std asis
  target-sparc: Introduce gen_check_align
  target-sparc: Use QT0 to return results from ldda
  target-sparc: Directly implement easy ld/st asis
  target-sparc: Use defines from asi.h
  target-sparc: Add UA2005 defines to asi.h
  target-sparc: Import linux/arch/sparc/include/uapi/asm/asi.h
  target-sparc: Pass TCGMemOp to gen_ld/st_asi
  target-sparc: Introduce get_asi
  target-sparc: Store %asi in TB flags
  target-sparc: Unify asi handling between 32 and 64-bit
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-14 10:36:27 +01:00
Kevin Wolf
543d7a42ba Block patches (v2) for the block queue.
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Merge remote-tracking branch 'mreitz/tags/pull-block-for-kevin-2016-07-13' into queue-block

Block patches (v2) for the block queue.

# gpg: Signature made Wed Jul 13 13:41:53 2016 CEST
# gpg:                using RSA key 0x3BB14202E838ACAD
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40
#      Subkey fingerprint: 58B3 81CE 2DC8 9CF9 9730  EE64 3BB1 4202 E838 ACAD

* mreitz/tags/pull-block-for-kevin-2016-07-13:
  iotests: Make 157 actually format-agnostic
  vvfat: Fix qcow write target driver specification
  hmp: show all of snapshot info on every block dev in output of 'info snapshots'
  hmp: use snapshot name to determine whether a snapshot is 'fully available'
  qemu-iotests: Test naming of throttling groups
  blockdev: Fix regression with the default naming of throttling groups
  vmdk: fix metadata write regression
  Improve block job rate limiting for small bandwidth values
  qcow2: Fix qcow2_get_cluster_offset()
  qemu-io: Use correct range limitations
  qcow2: Avoid making the L1 table too big
  qemu-img: Use strerror() for generic resize error

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-07-13 13:45:55 +02:00
Max Reitz
42190dcc70 iotests: Make 157 actually format-agnostic
iotest 157 pretends not to care about the image format used, but in fact
it does due to the format name not being filtered in its output. This
patch adds filtering and changes the reference output accordingly.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20160711132246.3152-1-mreitz@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2016-07-13 13:41:39 +02:00