Commit Graph

44239 Commits

Author SHA1 Message Date
Bastian Koppelmann
518d7fd2a0 target-tricore: Add trap handling & SOVF/OVF traps
Add the infrastructure needed to generate and handle traps and
implement the generation of SOVF and OVF traps.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <1455889426-1923-2-git-send-email-kbastian@mail.uni-paderborn.de>
2016-02-25 12:54:42 +01:00
Bastian Koppelmann
5dc1fbae70 target-tricore: Fix wrong precedences on psw_write
Wrong braces on the restore of the cached TCGv SV and V bit could lead to
a wrong PSW. While at this it removes unnecessary braces for the restore
of the cached TCGv AV and SAV bits.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
2016-02-25 12:51:31 +01:00
Bastian Koppelmann
723733575b target-tricore: fix save_context_upper using env->PSW
If the cached bits for C, V, SV, AV, or SAV were set, they would
not be saved during the context save since env->PSW was stored instead
of properly reading them using psw_read().

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
2016-02-25 12:51:27 +01:00
Peter Maydell
d159148b63 ppc patch queue for 2016-02-25
Hopefully final queue before qemu-2.6 soft freeze.  Currently
 accumulated patches for target-ppc, pseries machine type and related
 devices:
     * SLOF firmware update
         - Many new features, including virtio 1.0 non-legacy support
     * H_PAGE_INIT hypercall implementation
     * Small cleanups and bugfixes.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.6-20160225' into staging

ppc patch queue for 2016-02-25

Hopefully final queue before qemu-2.6 soft freeze.  Currently
accumulated patches for target-ppc, pseries machine type and related
devices:
    * SLOF firmware update
        - Many new features, including virtio 1.0 non-legacy support
    * H_PAGE_INIT hypercall implementation
    * Small cleanups and bugfixes.

# gpg: Signature made Thu 25 Feb 2016 03:00:56 GMT using RSA key ID 20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# 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: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-2.6-20160225:
  ppc/kvm: Tell the user what might be wrong when using bad CPU types with kvm-hv
  ppc/kvm: Use error_report() instead of cpu_abort() for user-triggerable errors
  spapr: initialize local Error pointer
  hw/ppc/spapr: Implement the h_page_init hypercall
  pseries: Update SLOF firmware image to 20160223

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-25 10:46:06 +00:00
Thomas Huth
388e47c75b ppc/kvm: Tell the user what might be wrong when using bad CPU types with kvm-hv
Using a CPU type that does not match the host is not possible when using
the kvm-hv kernel module - the PVR is checked in the kernel function
kvm_arch_vcpu_ioctl_set_sregs_hv() and rejected with -EINVAL if it
does not match the host.
However, when the user tries to specify a non-matching CPU type, QEMU
currently only reports "kvm_init_vcpu failed: Invalid argument", and
this is of course not very helpful for the user to solve the problem.
So this patch adds a more descriptive error message that tells the
user to specify "-cpu host" instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
[Removed melodramatic '!' :)]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-02-25 13:58:44 +11:00
Thomas Huth
072ed5f260 ppc/kvm: Use error_report() instead of cpu_abort() for user-triggerable errors
Setting the KVM_CAP_PPC_PAPR capability can fail if either the KVM
kernel module does not support it, or if the specified vCPU type
is not a 64-bit Book3-S CPU type. For example, the user can trigger
it easily with "-M pseries -cpu G2leLS" when using the kvm-pr kernel
module. So the error should not be reported with cpu_abort() since
this function is rather meant for reporting programming errors than
reporting user-triggerable errors (it prints out all CPU registers
and then calls abort() to kills the program - two things that the
normal user does not expect here) . So let's use error_report() with
exit(1) here instead.
A similar problem exists in the code that sets the KVM_CAP_PPC_EPR
capability, so while we're at it, fix that, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-02-25 13:58:44 +11:00
Greg Kurz
9897e46264 spapr: initialize local Error pointer
This fixes a crash in the target QEMU during migration.

Broken in commit c5f54f3.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[reworded commit message]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-02-25 13:58:44 +11:00
Thomas Huth
3240dd9a69 hw/ppc/spapr: Implement the h_page_init hypercall
This hypercall either initializes a page with zeros, or copies
another page.
According to LoPAPR, the i-cache of the page should also be
flushed if using H_ICACHE_INVALIDATE or H_ICACHE_SYNCHRONIZE,
and the d-cache should be synchronized to the RAM if the
H_ICACHE_SYNCHRONIZE flag is used. For this, two new functions
are introduced, kvmppc_dcbst_range() and kvmppc_icbi()_range, which
use the corresponding assembler instructions to flush the caches
if running with KVM on Power. If the code runs with TCG instead,
the code only uses tb_flush(), assuming that this will be
enough for synchronization.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-02-25 13:58:44 +11:00
Alexey Kardashevskiy
4f7ab0cdbc pseries: Update SLOF firmware image to 20160223
The main change is virtio 1.0 support.

The complete changelog is:
  > dhcp: fix warning messages when calling strtoip()
  > virtio-scsi: enable virtio 1.0
  > virtio-scsi: use virtio_fill desc api
  > virtio-scsi: use idx during initialization
  > virtio-net: enable virtio 1.0
  > virtio-blk: enable virtio 1.0
  > virtio: 1.0 helper to read 16/32/64 bit value
  > virtio: add and enable 1.0 device setup
  > virtio: 1.0 guest features negotiation
  > virtio: update features set/get register accessor
  > virtio: make all virtio apis 1.0 aware
  > virtio: add 64-bit virtio helpers for 1.0
  > virtio: add virtio 1.0 related struct and defines
  > virtio: get rid of type variable in virtio_device
  > virtio-net: move setup-mac to the open routine
  > virtio-net: make net_hdr_size a variable
  > virtio-net: replace vq array with vq_{tx,rx}
  > virtio-net: use virtio_fill_desc
  > virtio-{net,blk,scsi,9p}: use status variable
  > virtio-blk: add helpers for filling descriptors
  > virtio-{blk,9p}: enable resetting the device
  > virtio: introduce helper for initializing virt queue
  > virtio: fix code style/design issues.
  > fix code style in byteorder.h
  > pci: add byte read/write helper routines
  > virtio-net: fix gcc warnings (-Wextra)
  > virtio-blk: fix gcc warnings (-Wextra)
  > readme: Add a note about coding style
  > dhcp: Remove duplicated strtoip()
  > ethernet: Fix gcc warnings
  > net-snk: Fix gcc warnings
  > net-snk: Fix coding style
  > net-snk: Fix memory leak in dhcp6_process_options()
  > net-snk: Fix memory leak in ip6_to_multicast_mac() / send_ipv6()
  > net-snk: Remove bad NEIGHBOUR_SOLICITATION code in send_ipv6()
  > Fix dma-alloc and dma-map-in functions on board-js2x
  > net-snk: Allow stateless autoconfig IPv6 addresses with IP_INIT_IPV6_MANUAL
  > net-snk: Simplify the ip6_is_multicast() function
  > net-snk: Move global variable definition out of the header file
  > net-snk: Prefer non-link-local unicast IPv6 addresses if possible
  > net-snk: Fix the check for link-local addresses when receiving RAs
  > net-snk: Remove junk at the end of IPv6 TFTP ACK and error packets
  > Fix format strings in usb-ohci.c
  > net-snk: Get rid of junk at the end of sent DHCPv6 packets
  > net-snk: Use transaction IDs in DHCPv4, too
  > net-snk: Make use of DHCPv6 transaction IDs
  > net-snk: Seed the pseudo-random number generator
  > libc: Add srand() call
  > libc: Fix the rand() function to return non-zero values
  > net-snk: Improve printed text when booting via network
  > Increase temporary buffer size of ibm,client-architecture-support call
  > Move archsupport.fs into board-qemu directory
  > boot: stop booting when we encounter HALT
  > fat-files: Fix bug with root-entries = 0 on certain FAT32 file systems
  > usb: print unhandled descriptor in debug mode
  > Improve stack usage with libnvram get_partition function
  > Improve stack usage in libnvram environment variable code
  > libc: Port vsnprintf back from skiboot
  > Move the code for rfill into a separate function
  > Rework wrapper for new_nvram_partition() and fix possible bug in there
  > Stack optimization in libusb: split up setup_new_device()
  > Check for stack overflow in paflof engine
  > Clean up pending packet variable in ipv4 code
  > Fix tracking of pending outgoing packets when handling ARP replies

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-02-25 13:58:26 +11:00
Peter Maydell
7bd57b5150 Queued TCG patches
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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20160223' into staging

Queued TCG patches

# gpg: Signature made Tue 23 Feb 2016 18:27:44 GMT using RSA key ID 4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"

* remotes/rth/tags/pull-tcg-20160223:
  tcg: Remove unnecessary osdep.h includes from tcg-target.inc.c
  scripts/clean-includes: Ignore .inc.c files
  tcg: Rename tcg-target.c to tcg-target.inc.c
  target-sparc: Use global registers for the register window
  target-sparc: Tidy global register initialization
  tcg: Allocate indirect_base temporaries in a different order
  tcg: Implement indirect memory registers
  tcg: Work around clang bug wrt enum ranges, part 2

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-23 18:49:30 +00:00
Peter Maydell
c3b7f66800 tcg: Remove unnecessary osdep.h includes from tcg-target.inc.c
Commit 757e725b58 added a number of #include "qemu/osdep.h"
files to the tcg-target.c files (as they were named at the time).
These are unnecessary because these files are not standalone C
files, and the tcg/tcg.c file which includes them will have
already included osdep.h on their behalf. Remove the unneeded
include directives.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1456238983-10160-4-git-send-email-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-23 08:31:03 -08:00
Peter Maydell
f8e1f5d6a2 scripts/clean-includes: Ignore .inc.c files
Ignore files which have a .inc.c extension -- these are not headers
but they are not standalone C source files either, so we can't make
any automated decisions about what #include directives they should
have.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1456238983-10160-3-git-send-email-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-23 08:30:59 -08:00
Peter Maydell
ce15110981 tcg: Rename tcg-target.c to tcg-target.inc.c
Rename the per-architecture tcg-target.c files to tcg-target.inc.c.
This makes it clearer that they are not intended to be standalone
C files, but are instead #included into another source file.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1456238983-10160-2-git-send-email-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-23 08:30:38 -08:00
Richard Henderson
d2dc4069e0 target-sparc: Use global registers for the register window
Via indirection off cpu_regwptr.

Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-23 08:28:21 -08:00
Peter Maydell
1b1624092d spice: initial opengl/virgl support, postcopy migration fix.
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Merge remote-tracking branch 'remotes/spice/tags/pull-spice-20160223-1' into staging

spice: initial opengl/virgl support, postcopy migration fix.

# gpg: Signature made Tue 23 Feb 2016 12:30:40 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/spice/tags/pull-spice-20160223-1:
  Postcopy+spice: Pass spice migration data earlier
  spice/gl: tweak debug messages.
  spice/gl: add unblock timer
  spice: add opengl/virgl/dmabuf support
  spice: reset cursor on resize
  egl-helpers: add functions for render nodes and dma-buf passing
  configure: add dma-buf support detection.
  spice: init dcl before registering qxl interface

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-23 16:14:17 +00:00
Richard Henderson
0ea63844c2 target-sparc: Tidy global register initialization
Create tables for the various global registers that need allocation.
Remove one level of indirection from  gregnames and fregnames.

Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-23 08:07:14 -08:00
Richard Henderson
91478cefaa tcg: Allocate indirect_base temporaries in a different order
Since we've not got liveness analysis for indirect bases,
placing them at the end of the call-saved registers makes
it more likely that it'll stay live.

Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-23 08:07:14 -08:00
Richard Henderson
b3915dbbdc tcg: Implement indirect memory registers
That is, global_mem registers whose base is another global_mem
register, rather than a fixed register.

Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-23 08:07:14 -08:00
Richard Henderson
869938ae2a tcg: Work around clang bug wrt enum ranges, part 2
A previous patch patch changed the type of REG from int
to enum TCGReg, which provokes the following bug in clang:

  https://llvm.org/bugs/show_bug.cgi?id=16154

Signed-off-by: Richard Henderson  <rth@twiddle.net>
2016-02-23 08:07:14 -08:00
Peter Maydell
3174c64bb7 tracetool: Include osdep.h in generated-ust.c
When generating the trace/generated-ust.c source file, make sure
it includes osdep.h as its first include.

This fixes compilation with --enable-trace-backends=ust

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1456240661-15422-1-git-send-email-peter.maydell@linaro.org
Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-23 15:43:30 +00:00
Peter Maydell
90ce6e2644 include: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

NB: If this commit breaks compilation for your out-of-tree
patchseries or fork, then you need to make sure you add
#include "qemu/osdep.h" to any new .c files that you have.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-23 12:43:05 +00:00
Peter Maydell
974dc73d77 all: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
This just catches a couple of stragglers since I posted
the last clean-includes patchset last week.
2016-02-23 12:43:05 +00:00
Peter Maydell
30456d5ba3 all: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-23 12:43:05 +00:00
Peter Maydell
b1e34d1c3a osdep.h: Include config-target.h if NEED_CPU_H is defined
NEED_CPU_H is the define we use to distinguish per-target object
compilation from common object compilation. For the former, we must
also include config-target.h so that the .c files see the necessary
CONFIG_ constants.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-23 12:43:05 +00:00
Peter Maydell
d57106a4b6 scripts/clean-includes: Add --all option
Add a --all option which will run the script on every C
source and header file in the repository (except for those
in a few directories which contain standalone guest code).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-23 12:43:05 +00:00
Peter Maydell
fd3e39a40c scripts/clean-includes: Enhance to handle header files
Enhance clean-includes to handle header files as well as .c source
files. For headers we merely remove all the redundant #include
lines, including any includes of qemu/osdep.h itself.

There is a simple mollyguard on the include file processing to
skip a few key headers like osdep.h itself, to avoid producing
bad patches if the script is run on every file in include/.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-23 12:43:05 +00:00
Peter Maydell
e78490c44c disas/arm-a64.cc: Include osdep.h first
Rearrange include directives so that we include osdep.h first.
This has to be done manually because clean-includes doesn't
handle C++.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-23 12:43:04 +00:00
Peter Maydell
79f56d82f8 osdep.h: Define macros for the benefit of C++ before C++11
For C++ before C++11, <stdint.h> requires definition of the macros
__STDC_CONSTANT_MACROS, __STDC_LIMIT_MACROS and __STDC_FORMAT_MACROS
in order to enable definition of various macros by the header file.
Define these in osdep.h, so that we get the right header file
definitions whether osdep.h is being used by plain C, C++11 or
older C++.

In particular libvixl's header files depend on this and won't
compile if osdep.h is included before them otherwise.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-23 12:43:04 +00:00
Peter Maydell
1ef26b1f30 cpu: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-23 12:43:04 +00:00
Dr. David Alan Gilbert
b82fc321bf Postcopy+spice: Pass spice migration data earlier
Spice hooks the migration status changes to figure out when to
transmit information to the new spice server; but the migration
status in postcopy doesn't quite fit - the destination starts
running before the end of the source migration.

It's not a case of hanging off the migration status change to
postcopy-active either, since that happens before we stop the
guest CPU.

Fix it by sending a notify just after sending the device state,
and adding a flag that can be tested by the notify receiver.

Symptom:
   spice handover doesn't work with the error:
   red_worker.c:11540:display_channel_wait_for_migrate_data: timeout

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Message-id: 1456161452-25318-1-git-send-email-dgilbert@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-02-23 12:05:02 +01:00
Gerd Hoffmann
22672a3798 spice/gl: tweak debug messages.
Adjust message levels, make messages more verbose.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-02-23 12:04:40 +01:00
Gerd Hoffmann
8e388e907b spice/gl: add unblock timer
Pure debug aid, print a warning in case unblocking
doesn't happen within one second.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2016-02-23 12:04:40 +01:00
Gerd Hoffmann
474114b730 spice: add opengl/virgl/dmabuf support
This adds support for dma-buf passing to spice.  This makes virtio-gpu
with 3d acceleration work with spice.

Workflow:
 * virglrenderer renders the guest command stream into a texture.
 * qemu exports the texture as dma-buf and passes on that dma-buf
   to spice-server.
 * spice-server passes the dma-buf to spice-client, using unix
   socket file descriptor passing.
 * spice-client asks the window systems composer to render the
   dma-buf to the screen.

Requires cutting edge spice (server) and spice-gtk (client) builds,
from git master branch.

Also requires libvirt managing your qemu instance, and using
"virt-viewer --attach $guest".  libvirt will connect spice-server and
spice-client using unix sockets instead of tcp sockets then, which
is required for file descriptor passing.

Works for the local case (spice server and client on the same machine)
only.  Supporting remote too is planned (by feeding the dma-bufs into
gpu-assisted video encoder), but not there yet.

gl mode is turned off by default, use "-spice gl=on,$otherargs" to
enable it.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-02-23 12:04:39 +01:00
Marc-André Lureau
58c7b618f3 spice: reset cursor on resize
Spice server will clear the cursor on resize. QXL driver reset it after
resize, however, virtio and other devices do not. Teach qemu to set it
back.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-02-23 12:04:39 +01:00
Gerd Hoffmann
1e3165980c egl-helpers: add functions for render nodes and dma-buf passing
Adds helpers to open a drm render node and create a opengl
context for it.  Also add a helper to export a texture as
dma-buf.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2016-02-23 12:04:39 +01:00
Gerd Hoffmann
014cb152b8 configure: add dma-buf support detection.
Set CONFIG_OPENGL_DMABUF in case both mesa and libepoxy are
new enough to have support for dma-buf import/export.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2016-02-23 12:04:39 +01:00
Gerd Hoffmann
b5e751b51f spice: init dcl before registering qxl interface
Without this spice might callback into qemu before ssd->dcl.con is
initialized, resulting in a segfault due to NULL pointer dereference.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2016-02-23 12:04:39 +01:00
Peter Maydell
ea6e4981bf usb: misc bugfixes.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20160223-1' into staging

usb: misc bugfixes.

# gpg: Signature made Tue 23 Feb 2016 10:53:01 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-usb-20160223-1:
  ohci: allocate timer only once.
  usb: add pid check at the first of uhci_handle_td()
  usb: check RNDIS buffer offsets & length
  usb: check RNDIS message length
  tusb6010: move from hw/timer to hw/usb
  usb: check USB configuration descriptor object

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-23 10:57:31 +00:00
Gerd Hoffmann
fa1298c2d6 ohci: allocate timer only once.
Allocate timer once, at init time, instead of allocating/freeing
it all the time when starting/stopping the bus.  Simplifies the
code, also fixes bugs (memory leak) due to missing checks whenever
the time is already allocated or not.

Cc: Prasad J Pandit <pjp@fedoraproject.org>
Reported-by: Zuozhi Fzz <zuozhi.fzz@alibaba-inc.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-02-23 11:13:18 +01:00
Gonglei
5f77e06baa usb: add pid check at the first of uhci_handle_td()
pid can be gotten from uhci device memory in uhci_handle_td(),
so the guest can trigger assert qemu if we get an invalid pid.
And the uhci spec 2.1.2 tells us The Host Controller sets Host
Controller Process Error bit to 1 when it detects a fatal error
and indicates that the Host Controller suffered a consistency
check failure while processing a Transfer Descriptor. An example
of a consistency check failure would be finding an illegal PID
field while processing the packet header portion of the TD.
When this error occurs, the Host Controller clears the Run/Stop
bit in the Command register to prevent further schedule execution.

We'd better to set UHCI_STS_HCPERR and kick an interrupt, check
the pid value at the first of uhci_handle_td function.

https://bugzilla.redhat.com/show_bug.cgi?id=1070027

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-id: 1455867238-4720-1-git-send-email-arei.gonglei@huawei.com

[ applied minor codestyle fix ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-02-23 10:38:01 +01:00
Prasad J Pandit
fe3c546c5f usb: check RNDIS buffer offsets & length
When processing remote NDIS control message packets,
the USB Net device emulator uses a fixed length(4096) data buffer.
The incoming informationBufferOffset & Length combination could
overflow and cross that range. Check control message buffer
offsets and length to avoid it.

Reported-by: Qinghao Tang <luodalongde@gmail.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 1455648821-17340-3-git-send-email-ppandit@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-02-23 10:38:01 +01:00
Prasad J Pandit
64c9bc181f usb: check RNDIS message length
When processing remote NDIS control message packets, the USB Net
device emulator uses a fixed length(4096) data buffer. The incoming
packet length could exceed this limit. Add a check to avoid it.

Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 1455648821-17340-2-git-send-email-ppandit@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-02-23 10:38:00 +01:00
Peter Maydell
14ec7b2c5b tusb6010: move from hw/timer to hw/usb
The TUSB6010 is a USB controller (as the name suggests). Move it from
hw/timer (where it was accidentally filed in 2013 when we moved
everything out of hw/) to hw/usb.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1455883404-10976-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-02-23 10:38:00 +01:00
Prasad J Pandit
80eecda8e5 usb: check USB configuration descriptor object
When processing remote NDIS control message packets, the USB Net
device emulator checks to see if the USB configuration descriptor
object is of RNDIS type(2). But it does not check if it is null,
which leads to a null dereference error. Add check to avoid it.

Reported-by: Qinghao Tang <luodalongde@gmail.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 1455188480-14688-1-git-send-email-ppandit@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-02-23 10:38:00 +01:00
Peter Maydell
8eb779e422 Block layer patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Mon 22 Feb 2016 15:59:25 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream: (34 commits)
  qemu-iotests: 140: make description slightly more verbose
  qemu-iotests: 140: don't use IDE device
  qemu-iotests: 067: ignore QMP events
  blockdev: unset inappropriate flags when changing medium
  MAINTAINERS: Add myself as maintainer of the throttling code
  docs: Document the throttling infrastructure
  qapi: Correct the name of the iops_rd parameter
  qemu-iotests: Extend iotest 093 to test bursts
  throttle: Test throttle_compute_wait() during bursts
  throttle: Check that burst_level leaks correctly
  qapi: Add burst length fields to BlockDeviceInfo
  qapi: Add burst length parameters to block_set_io_throttle
  throttle: Add command-line settings to define the burst periods
  throttle: Add support for burst periods
  throttle: Use throttle_config_init() to initialize ThrottleConfig
  throttle: Merge all functions that check the configuration into one
  throttle: Set always an average value when setting a maximum value
  throttle: Make throttle_is_valid() set errp
  throttle: Make throttle_max_is_missing_limit() set errp
  throttle: Make throttle_conflicting() set errp
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-22 16:55:41 +00:00
Kevin Wolf
fe243e4881 Block patches of the last three weeks.
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Merge remote-tracking branch 'mreitz/tags/pull-block-for-kevin-2016-02-22' into queue-block

Block patches of the last three weeks.

# gpg: Signature made Mon Feb 22 16:55:33 2016 CET using RSA key ID E838ACAD
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"

* mreitz/tags/pull-block-for-kevin-2016-02-22:
  qemu-iotests: 140: make description slightly more verbose
  qemu-iotests: 140: don't use IDE device
  qemu-iotests: 067: ignore QMP events
  blockdev: unset inappropriate flags when changing medium

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-02-22 16:57:50 +01:00
Sascha Silbe
43e15ed4fd qemu-iotests: 140: make description slightly more verbose
Describe in a little more detail what the test is supposed to achieve.

Signed-off-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Message-id: 1455827853-33477-3-git-send-email-silbe@linux.vnet.ibm.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2016-02-22 16:54:14 +01:00
Sascha Silbe
4b84fc70ce qemu-iotests: 140: don't use IDE device
IDE is only implemented by very few architectures (mostly PC). The
test doesn't actually need a block device attached to the
BlockBackend, so just drop it and adjust the reference output
accordingly.

Fixes: 16dee418 ("iotests: Add test for eject under NBD server")
Signed-off-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Message-id: 1455827853-33477-2-git-send-email-silbe@linux.vnet.ibm.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2016-02-22 16:54:14 +01:00
Sascha Silbe
f436c94102 qemu-iotests: 067: ignore QMP events
The relative ordering of "device_del" return value and the
"DEVICE_DELETED" QMP event depends on the architecture being
tested. On x86 unplugging virtio disks is asynchronous
(=qdev_unplug()= → =hotplug_handler_unplug_request()=) while on s390x
it is synchronous (=qdev_unplug()= → =hotplug_handler_unplug()=). This
leads to the actual output on s390x consistently differing from the
reference output (that was probably produced on x86).

The easiest way to address this is to filter out QMP events in
067. The DEVICE_DELETED event is already getting explicitly tested by
the Python-based test case 139, so the test coverage should be
unaffected. Make use of the recently introduced _filter_qmp_events()
to remove QMP events from the test case output and adjust the
reference output accordingly.

The tr / sed / tr trick used for filtering was suggested by Max Reitz
<mreitz@redhat.com>.

Signed-off-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Message-id: 1455886869-139916-2-git-send-email-silbe@linux.vnet.ibm.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2016-02-22 16:54:14 +01:00
Alyssa Milburn
156abc2f90 blockdev: unset inappropriate flags when changing medium
Most importantly, this removes BDRV_O_TEMPORARY, to avoid unlink()ing an
image which replaces a snapshotted one.

Signed-off-by: Alyssa Milburn <fuzzie@fuzzie.org>
Message-id: 20160206133618.GA16635@li141-249.members.linode.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2016-02-22 16:54:14 +01:00