Commit Graph

30970 Commits

Author SHA1 Message Date
Will Newton
664c6733d7 target-arm: Add support for AArch32 FP VRINTR
Add support for the AArch32 floating-point VRINTR instruction.

Signed-off-by: Will Newton <will.newton@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-31 14:47:34 +00:00
Will Newton
7655f39bde target-arm: Add AArch32 FP VRINTA, VRINTN, VRINTP and VRINTM
Add support for AArch32 ARMv8 FP VRINTA, VRINTN, VRINTP and VRINTM
instructions.

Signed-off-by: Will Newton <will.newton@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-31 14:47:33 +00:00
Will Newton
9972da669f target-arm: Move arm_rmode_to_sf to a shared location.
This function will be needed for AArch32 ARMv8 support, so move it to
helper.c where it can be used by both targets. Also moves the code out
of line, but as it is quite a large function I don't believe this
should be a significant performance impact.

Signed-off-by: Will Newton <will.newton@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-31 14:47:33 +00:00
Paolo Bonzini
2cdaca90dd display: avoid multi-statement macro
For blizzard, pl110 and tc6393xb this is harmless, but for pxa2xx
Coverity noticed that it is used inside an "if" statement.
Fix it because it's the file with the highest number of defects
in the whole QEMU tree!  Use "do...while (0)", or just remove the
semicolon if there's a single statement in the macro.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-31 14:47:33 +00:00
Alistair Francis
b48adc0d30 ZYNQ: Implement board MIDR control for Zynq
This patch uses the fact that the midr variable is now a property
This patch sets the midr variable to the boards custom midr

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: a3754b10d150af72e4688a993e484fa2b9b8fa21.1390176489.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-31 14:47:33 +00:00
Alistair Francis
51a9b04bd3 ARM: Convert MIDR to a property
Convert the MIDR register to a property. This allows boards to later set
a custom MIDR value. This has been done in such a way to maintain
compatibility with all existing CPUs and boards

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 878613f2f12d4162f12629522fd99de8df904856.1390176489.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-31 14:47:32 +00:00
Peter Maydell
83bfffec72 hw/arm/boot: Don't set up ATAGS for autogenerated dtb booting
The code which decides whether to set up the ATAGS data structure on
reset was using the wrong conditional, which meant we were creating
an ATAGS structure when doing a device-tree boot if the dtb was
autogenerated by the board. This is harmless, but unnecessary, so
bring it in to line with user-provided-dtb boots.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1388326833-656-1-git-send-email-peter.maydell@linaro.org
2014-01-31 14:47:32 +00:00
Peter Maydell
360a6f2dbd target-arm: A64: Add SIMD scalar copy instructions
Add support for the SIMD scalar copy instruction group (C3.6.7),
which consists of the single instruction DUP (element, scalar).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-01-31 14:47:32 +00:00
Alex Bennée
f3f8c4f4d2 target-arm: A64: Add SIMD modified immediate group
This patch adds support for the AdvSIMD modified immediate group
(C3.6.6) with all its suboperations (movi, orr, fmov, mvni, bic).

Signed-off-by: Alexander Graf <agraf@suse.de>
[AJB: new decode struct, minor bug fixes, optimisation]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-01-31 14:47:32 +00:00
Alex Bennée
67bb93890d target-arm: A64: Add SIMD copy operations
This adds support for the all the AdvSIMD vector copy operations
(ARM ARM 3.6.5).

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-01-31 14:47:31 +00:00
Michael Matz
4a0ff1ce73 target-arm: A64: Add SIMD across-lanes instructions
Add support for the SIMD "across lanes" instruction group (C3.6.4).

Signed-off-by: Michael Matz <matz@suse.de>
[PMM: Updated to current codebase, added fp min/max ops,
 added unallocated encoding checks]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-01-31 14:47:31 +00:00
Michael Matz
5fa5469c08 target-arm: A64: Add SIMD ZIP/UZP/TRN
Add support for the SIMD ZIP/UZIP/TRN instruction group
(C3.6.3).

Signed-off-by: Michael Matz <matz@suse.de>
[PMM: use new do_vec_get/set etc functions and generally update to new
 codebase standards; refactor to pull per-element loop outside switch]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-01-31 14:47:31 +00:00
Michael Matz
7c51048fa9 target-arm: A64: Add SIMD TBL/TBLX
Add support for the SIMD TBL/TBLX instructions (group C3.6.2).

Signed-off-by: Michael Matz <matz@suse.de>
[PMM: rewritten to do more of the decode in translate-a64.c,
 and to do only one 64 bit pass at a time in the helper]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-01-31 14:47:31 +00:00
Peter Maydell
5c73747f3c target-arm: A64: Add SIMD EXT
Add support for the SIMD EXT instruction (the only one in its
group, C3.6.1).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-01-31 14:47:30 +00:00
Alex Bennée
384b26fb06 target-arm: A64: Add decode skeleton for SIMD data processing insns
Add decode skeleton and function placeholders for all the SIMD data
processing instructions. Due to the complexity of this part of the
table the normal extract and switch approach gets very messy very
quickly, so we use a simple data-driven pattern-and-mask approach.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-01-31 14:47:30 +00:00
Peter Maydell
df54e47d2b target-arm: A64: Add SIMD ld/st single
Implement the SIMD ld/st single structure instructions.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-01-31 14:47:30 +00:00
Alex Bennée
72430bf5eb target-arm: A64: Add SIMD ld/st multiple
This adds support support for the SIMD load/store
multiple category of instructions.

This also brings in a couple of helper functions for manipulating
sections of the SIMD registers:

  * do_vec_get - fetch value from a slice of a vector register
  * do_vec_set - set a slice of a vector register

which use vec_reg_offset for consistent processing of offsets in an
endian aware manner. There are also additional helpers:

  * do_vec_ld - load value into SIMD
  * do_vec_st - store value from SIMD

which load or store a slice of a vector register to memory.
These don't zero extend like the fp variants.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-01-31 14:47:30 +00:00
Peter Maydell
89e4a51ca9 Tracing pull request
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Merge remote-tracking branch 'stefanha/tags/tracing-pull-request' into staging

Tracing pull request

# gpg: Signature made Mon 27 Jan 2014 14:51:09 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* stefanha/tags/tracing-pull-request:
  trace: fix simple trace "disable" keyword
  trace: add glib 2.32+ static GMutex support
  trace: [simple] Do not include "trace/simple.h" in generated tracer headers
  tracing: start trace processing thread in final child process

Message-id: 1390834386-23139-1-git-send-email-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-31 11:13:08 +00:00
Dominik Dingel
44c68de044 s390x/kvm: cleanup partial register handling
The partial register handling (introduced with commits
420840e58b and
3474b67948 ) aimed to improve intercept
handling performance.

It made the code more complicated though. During development for life
migration/init/reset etc it turned out that this might cause several
hard to debug programming errors. With the introduction of ioeventfd
(and future irqfd patches) the qemu intercept handlers are no longer
hot-path. And therefore the partial register handling can be
removed to simplify the code.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
CC: Jason J. Herne <jjherne@us.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Alexander Graf <agraf@suse.de>
2014-01-31 09:43:44 +01:00
Peter Maydell
0159a64397 acpi,pci,pc,virtio fixes and enhancements
This includes new unit-tests for acpi by Marcel,
 hotplug for pci bridges by myself (piix only so far)
 and cpu hotplug for q35.
 And a bunch of fixes all over the place as usual.
 
 I included the patch to fix memory alignment for q35
 as well - even though it limits 32 bit guests to 3G (they
 previously could address more memory with PAE).
 To remove the limit, this will have to be fixed in seabios.
 
 I also added self as virtio co-maintainer so I don't need
 to troll the list for patches to review.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into staging

acpi,pci,pc,virtio fixes and enhancements

This includes new unit-tests for acpi by Marcel,
hotplug for pci bridges by myself (piix only so far)
and cpu hotplug for q35.
And a bunch of fixes all over the place as usual.

I included the patch to fix memory alignment for q35
as well - even though it limits 32 bit guests to 3G (they
previously could address more memory with PAE).
To remove the limit, this will have to be fixed in seabios.

I also added self as virtio co-maintainer so I don't need
to troll the list for patches to review.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Sun 26 Jan 2014 11:12:09 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* mst/tags/for_anthony: (35 commits)
  MAINTAINERS: add self as virtio co-maintainer
  q35: document gigabyte_align
  q35: gigabyte alignment for ram
  acpi: Fix PCI hole handling on build_srat()
  pc: Save size of RAM below 4GB
  hw/pci: fix error flow in pci multifunction init
  acpi-test: update expected AML since recent changes
  pc: ACPI: update acpi-dsdt.hex.generated q35-acpi-dsdt.hex.generated
  pc: ACPI: unify source of CPU hotplug IO base/len
  pc: ACPI: expose PRST IO range via _CRS
  pc: Q35 DSDT: exclude CPU hotplug IO range from PCI bus resources
  pc: PIIX DSDT: exclude CPU/PCI hotplug & GPE0 IO range from PCI bus resources
  pc: set PRST base in DSDT depending on chipset
  acpi: ich9: add CPU hotplug handling to Q35 machine
  acpi: factor out common cpu hotplug code for PIIX4/Q35
  acpi-build: enable hotplug for PCI bridges
  piix4: add acpi pci hotplug support
  pcihp: generalization of piix4 acpi
  pci: add pci_for_each_bus_depth_first
  pc: make: fix dependencies: rebuild when included file is changed
  ...

Message-id: 1390735289-15563-1-git-send-email-mst@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-31 00:23:27 +00:00
Peter Maydell
97374ce538 Merge remote-tracking branch 'sstabellini/xen-170114' into staging
* sstabellini/xen-170114:
  xen_pt: Fix passthrough of device with ROM.
  xen_pt: Fix debug output.
  xenfb: map framebuffer read-only and handle unmap errors

Message-id: alpine.DEB.2.02.1401171537140.21510@kaball.uk.xensource.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-31 00:13:02 +00:00
Peter Maydell
8e02b35926 Net patches
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Merge remote-tracking branch 'stefanha/tags/net-pull-request' into staging

Net patches

# gpg: Signature made Mon 27 Jan 2014 14:45:35 GMT using RSA key ID 81AB73C8
# gpg: Can't check signature: public key not found

* stefanha/tags/net-pull-request:
  tap-linux: Get features once and use it many times
  Fix lan9118 buffer length handling
  Fix lan9118 TX "CMD A" handling
  net: Use g_strdup_printf instead of snprintf.

Message-id: 1390834129-19625-1-git-send-email-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-30 22:25:39 +00:00
Peter Maydell
dc08f85188 Merge remote-tracking branch 'rth/tcg-movbe' into staging
* rth/tcg-movbe:
  tcg/i386: cleanup useless #ifdef
  tcg/i386: use movbe instruction in qemu_ldst routines
  tcg/i386: add support for three-byte opcodes
  tcg/i386: remove hardcoded P_REXW value
  disas/i386.c: disassemble movbe instruction

Message-id: 1390692772-15282-1-git-send-email-rth@twiddle.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-30 19:02:16 +00:00
Stefano Stabellini
360e607b88 address_space_translate: do not cross page boundaries
The following commit:

commit 149f54b53b
Author: Paolo Bonzini <pbonzini@redhat.com>
Date:   Fri May 24 12:59:37 2013 +0200

    memory: add address_space_translate

breaks Xen support in QEMU, in particular the Xen mapcache. The effect
is that one Windows XP installation out of ten would end up with BSOD.

The reason is that after this commit l in address_space_rw can span a
page boundary, however qemu_get_ram_ptr still calls xen_map_cache asking
to map a single page (if block->offset == 0).

Fix the issue by reverting to the previous behaviour: do not return a
length from address_space_translate_internal that can span a page
boundary.

Also in address_space_translate do not ignore the length returned by
address_space_translate_internal.

This patch should be backported to QEMU 1.6.x.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Perard <anthony.perard@citrix.com>
Tested-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-stable@nongnu.org
2014-01-30 14:20:45 +00:00
Peter Maydell
0706f7c85b trivial-patches for 2014-01-16
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Merge remote-tracking branch 'mjt/tags/trivial-patches-2014-01-16' into staging

trivial-patches for 2014-01-16

# gpg: Signature made Thu 16 Jan 2014 17:29:05 GMT using RSA key ID 74F0C838
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D  4324 457C E0A0 8044 65C5
#      Subkey fingerprint: E190 8639 3B10 B51B AC2C  8B73 5253 C5AD 74F0 C838

Message-id: 1389893719-16336-1-git-send-email-mjt@msgid.tls.msk.ru
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-30 13:56:00 +00:00
Alexander Graf
18d13fa293 TCG: Fix I64-on-32bit-host temporaries
We have cache pools of temporaries that we can reuse later when they've
already been allocated before.

These cache pools differenciate between the target TCG variable type they
contain. So we have one pool for I32 and one pool for I64 variables.

On a 32bit system, we can't work with 64bit registers though. So instead we
spawn two I32 temporaries for every I64 temporary we create. All caching
works the same way as on a real 64-bit system though: We create a cache entry
in the 64bit array for the first i32 index.

However, when we free such a temporary we free it to the pool of its type
(which is always i32 on 32bit systems) rather than its base_type (which is
i64 or i32 depending on the variable). This means we put a temporary that
is of base_type == i64 into the i32 preallocated temporary pool.

Eventually, this results in failures like this on 32bit hosts:

  qemu-system-ppc64: tcg/tcg.c:515: tcg_temp_new_internal: Assertion `ts->base_type == type' failed.

This patch makes the free routine use the base_type instead for the free case,
so it's consistent with the temporary allocation. It fixes the above failure
for me.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1390146811-59936-1-git-send-email-agraf@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-30 13:25:28 +00:00
Stratos Psomadakis
056f49ff2c monitor: Cleanup mon->outbuf on write error
In case monitor_flush() fails to write the contents of mon->outbuf to
the output device, mon->outbuf is not cleaned up properly. Check the
return code of the qemu_chr_fe_write() function and cleanup the outbuf
if it fails.

References: http://lists.nongnu.org/archive/html/qemu-devel/2014-01/msg02890.html

Signed-off-by: Stratos Psomadakis <psomas@grnet.gr>
Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-01-28 12:47:12 -05:00
Igor Mammedov
57d3e1b3f5 virtio_rng: replace custom backend API with UserCreatable.complete() callback
in addition fix default backend leak by releasing it if its
initialization failed.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-01-28 12:47:11 -05:00
Igor Mammedov
269e09f3fc add optional 2nd stage initialization to -object/object-add commands
Introduces USER_CREATABLE interface that must be implemented by
objects which are designed to created with -object CLI option or
object-add QMP command.

Interface provides an ability to do an optional second stage
initialization of the object created with -object/object-add
commands. By providing complete() callback, which is called
after the object properties were set.

It allows to:
 * prevents misusing of -object/object-add by filtering out
   objects that are not designed for it.
 * generalize second stage backend initialization instead of
   adding custom APIs to perform it
 * early error detection of backend initialization at -object/
   object-add time rather than through a proxy DEVICE object
   that tries to use backend.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-01-28 12:47:02 -05:00
Igor Mammedov
90e9cf28e5 vl.c: -object: don't ignore duplicate 'id'
object_property_add_child() may fail if 'id' matches
an already existing object. Which means an incorrect
command line.
So instead of silently ignoring error, report it and
terminate QEMU.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-01-28 11:28:08 -05:00
Igor Mammedov
69252c0467 object_add: consolidate error handling
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-01-28 11:28:08 -05:00
Bandan Das
8b6d14087d vfio: correct debug macro typo
Change to DEBUG_VFIO in vfio_msi_interrupt() for debug
messages to get printed

Signed-off-by: Bandan Das <bsd@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2014-01-28 08:23:19 -07:00
Matthew Rosato
234eef51a1 sclp-s390: Define new SCLP codes and structures
Define new SCLP codes and structures that will be needed for
s390 memory hotplug.

Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-01-28 12:22:33 +01:00
Stefan Hajnoczi
736ec1677f trace: fix simple trace "disable" keyword
The trace-events "disable" keyword turns an event into a nop at
compile-time.  This is important for high-frequency events that can
impact performance.

The "disable" keyword is currently broken in the simple trace backend.
This patch fixes the problem as follows:

Trace events are identified by their TraceEventID number.  When events
are disabled there are two options for assigning TraceEventID numbers:
1. Skip disabled events and don't assign them a number.
2. Assign numbers for all events regardless of the disabled keyword.

The simple trace backend and its binary file format uses approach #1.

The tracetool infrastructure has been using approach #2 for a while.

The result is that the numbers used in simple trace files do not
correspond with TraceEventIDs.  In trace/simple.c we assumed that they
are identical and therefore emitted bogus numbers.

This patch fixes the bug by using TraceEventID for trace_event_id()
while sticking to approach #1 for simple trace file numbers.  This
preserves simple trace file format compatibility.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-01-27 15:49:39 +01:00
Stefan Hajnoczi
05735a2a9c trace: add glib 2.32+ static GMutex support
The GStaticMutex API was deprecated in glib 2.32.  We cannot switch over
to GMutex unconditionally since we would drop support for older glib
versions.  But the deprecated API warnings during build are annoying so
use static GMutex when possible.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-01-27 15:49:39 +01:00
Lluís Vilanova
b618c28831 trace: [simple] Do not include "trace/simple.h" in generated tracer headers
The header is not necessary, given that the simple backend does not define any
inlined tracing routines.

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-01-27 15:49:39 +01:00
Michael Mueller
8a745f2a92 tracing: start trace processing thread in final child process
When running with trace backend e.g. "simple" the writer thread needs to be
implemented in the same process context as the trace points that will be
processed. Under libvirtd control, qemu gets first started in daemonized
mode to privide its capabilities. Creating the writer thread in the initial
process context then leads to a dead lock because the thread gets termined
together with the initial parent. (-daemonize)

Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
[minor whitespace fixes]
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-01-27 15:49:39 +01:00
Kusanagi Kouichi
1f149e721f tap-linux: Get features once and use it many times
Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-01-27 15:44:06 +01:00
Roy Franz
c444dfabfc Fix lan9118 buffer length handling
The 9118 ethernet controller supports transmission of multi-buffer packets
with arbitrary byte alignment of the start and end bytes.  All writes to
the packet fifo are 32 bits, so the controller discards bytes at the beginning
and end of each buffer based on the 'Data start offset' and 'Buffer size'
of the TX command 'A' format.

This patch uses the provided buffer length to limit the bytes transmitted.
Previously all the bytes of the last 32-bit word written to the TX fifo
were added to the internal transmit buffer structure resulting in more bytes
being transmitted than were submitted to the hardware in the command.  This
resulted in extra bytes being inserted into the middle of multi-buffer
packets when the non-final buffers had non-32bit aligned ending addresses.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-01-27 15:44:06 +01:00
Roy Franz
2ad657e3f3 Fix lan9118 TX "CMD A" handling
The 9118 ethernet controller supports transmission of multi-buffer packets
with arbitrary byte alignment of the start and end bytes.  All writes to
the packet fifo are 32 bits, so the controller discards bytes at the beginning
and end of each buffer based on the 'Data start offset' and 'Buffer size'
of the TX command 'A' format.

This patch changes the buffer size and offset internal state variables to be
updated on every "TX command A" write.  Previously they were only updated for
the first segment, which resulted incorrect behavior for packets with more
than one segment. Each segment of the packet has its own CMD A command, with
its own buffer size and start offset.

Also update extraction of fields from the CMD A word to use extract32().

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-01-27 15:44:06 +01:00
Hani Benhabiles
4bf2c138dd net: Use g_strdup_printf instead of snprintf.
assign_name() in net/net.c is using snprintf + g_strdup to get the same
result as g_strdup_printf.

Signed-off-by: Hani Benhabiles <kroosec@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-01-27 15:44:06 +01:00
Michael S. Tsirkin
a75143eda2 MAINTAINERS: add self as virtio co-maintainer
This will help make sure I get Cc'd on patches.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-01-26 13:11:45 +02:00
Michael S. Tsirkin
4e17997d49 q35: document gigabyte_align
Document the logic behind the below/above 4G split.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-01-26 13:11:45 +02:00
Gerd Hoffmann
9a305c8fc7 q35: gigabyte alignment for ram
Map 2G (q35) of memory below 4G, so the RAM pieces
are nicely aligned to gigabyte borders.

Keep old memory layout for (a) old machine types and (b) in case all
memory fits below 4G and thus we don't have to split RAM into pieces
in the first place.  The later makes sure this change doesn't take
away memory from 32bit guests.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-01-26 13:11:45 +02:00
Eduardo Habkost
4c8a949b24 acpi: Fix PCI hole handling on build_srat()
The original SeaBIOS code used the RamSize variable, that was used by
SeaBIOS for the size of RAM below 4GB, not for all RAM. When copied to
QEMU, the code was changed to use the full RAM size, and this broke the
build_srat() code that handles the PCI hole.

Change build_srat() to use ram_size_below_4g instead of ram_size, to
restore the original behavior from SeaBIOS.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-01-26 13:11:45 +02:00
Eduardo Habkost
f30ee8a968 pc: Save size of RAM below 4GB
The ram_below_4g value will be useful in other places, such as the ACPI
table code, and other code that currently requires passing
below_4g_mem_size around in function arguments.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-01-26 13:11:45 +02:00
Marcel Apfelbaum
306077640a hw/pci: fix error flow in pci multifunction init
Scenario:
  - There is a non multifunction pci device A on 00:0X.0.
  - Hot-plug another multifunction pci device B at 00:0X.1.
  - The operation will fail of course.
  - Try to hot-plug the B device 2-3 more times, qemu will crash.

Reason: The error flow leaves the B's address space into global address spaces
list, but the device object is freed. Fixed that.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-01-26 13:11:45 +02:00
Michael S. Tsirkin
b8124cecb5 acpi-test: update expected AML since recent changes
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-01-26 13:11:45 +02:00
Igor Mammedov
2867534f3d pc: ACPI: update acpi-dsdt.hex.generated q35-acpi-dsdt.hex.generated
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-01-26 13:11:44 +02:00
Igor Mammedov
e4cf8ed08a pc: ACPI: unify source of CPU hotplug IO base/len
use C headers defines as source of IO base/len for respective
values in ASL code.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-01-26 13:11:44 +02:00