Second pull req with getrandom fix

# gpg: Signature made Thu 25 Feb 2016 10:57:42 GMT using RSA key ID DE3C9BC0
# gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>"
# gpg:                 aka "Riku Voipio <riku.voipio@linaro.org>"

* remotes/riku/tags/pull-linux-user-20160225:
  linux-user: add getrandom() syscall
  linux-user: correct timerfd_create syscall numbers
  linux-user: remove unavailable syscalls from aarch64
  linux-user: sync syscall numbers with kernel
  linux-user: Don't assert if guest tries shmdt(0)
  linux-user: set ppc64/ppc64le default CPU to POWER8
  build: [linux-user] Rename "syscall.h" to "target_syscall.h" in target directories
  linux-user: fix realloc size of target_fd_trans.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

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: NPeter Maydell <peter.maydell@linaro.org>

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: NThomas Huth <thuth@redhat.com>
[Removed melodramatic '!' :)]
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

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: NThomas Huth <thuth@redhat.com>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

This fixes a crash in the target QEMU during migration.

Broken in commit c5f54f3e.
Signed-off-by: NGreg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>
[reworded commit message]
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

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: NThomas Huth <thuth@redhat.com>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

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: NAlexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

getrandom() has been introduced in kernel 3.17 and is now used during
the boot sequence of Debian unstable (stretch/sid).
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

x86, m68k, ppc, sh4 and sparc failed to enable timerfd, because they
didn't have timerfd_create system call defined. Instead QEMU
defined timerfd syscall. Checking with kernel sources, it appears
kernel developers reused timerfd syscall number with timerfd_create,
presumably since no userspace called the old syscall number.
Reported-by: NLaurent Vivier <laurent@vivier.eu>
Reviewed-by: NLaurent Vivier <laurent@vivier.eu>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

QEMU lists deprecated system call numbers in for Aarch64. These
are never enabled for Linux kernel, so don't define them in Qemu
either. Remove the ifdef around host_to_target_stat64 since
all architectures need it now.
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

Sync syscall numbers to match the linux v4.5-rc1 kernel.
Reviewed-by: NLaurent Vivier <laurent@vivier.eu>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

Our implementation of shmat() and shmdt() for linux-user was
using "zero guest address" as its marker for "entry in the
shm_regions[] array is not in use". This meant that if the
guest did a shmdt(0) we would match on an unused array entry
and call page_set_flags() with both start and end addresses zero,
which causes an assertion failure.

Use an explicit in_use flag to manage the shm_regions[] array,
so that we avoid this problem.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reported-by: NPavel Shamis <pasharesearch@gmail.com>
Reviewed-by: NLaurent Vivier <laurent@vivier.eu>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

Set the default to the latest CPU version to have the
largest set of available features.

It is also really needed in little-endian mode because
POWER7 is not really supported in this mode and some distros
(at least debian) generate POWER8 code for their ppc64le target.

Fixes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=813698Signed-off-by: NLaurent Vivier <lvivier@redhat.com>
Reviewed-by: NAlexander Graf <agraf@suse.de>
Reviewed-by: NMichael Tokarev <mjt@tls.msk.ru>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

This fixes double-definitions in linux-user builds when using the UST
tracing backend (which indirectly includes the system's "syscall.h").
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

target_fd_trans is an array of "TargetFdTrans *": compute size
accordingly. Use g_renew() as proposed by Paolo.
Reported-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

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: NPeter Maydell <peter.maydell@linaro.org>

Commit 757e725b 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: NEric Blake <eblake@redhat.com>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Message-Id: <1456238983-10160-4-git-send-email-peter.maydell@linaro.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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: NEric Blake <eblake@redhat.com>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Message-Id: <1456238983-10160-3-git-send-email-peter.maydell@linaro.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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: NEric Blake <eblake@redhat.com>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Message-Id: <1456238983-10160-2-git-send-email-peter.maydell@linaro.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Via indirection off cpu_regwptr.
Tested-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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: NPeter Maydell <peter.maydell@linaro.org>

Create tables for the various global registers that need allocation.
Remove one level of indirection from  gregnames and fregnames.
Tested-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

That is, global_mem registers whose base is another global_mem
register, rather than a fixed register.
Tested-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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=16154Signed-off-by: NRichard Henderson  <rth@twiddle.net>

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: NPeter Maydell <peter.maydell@linaro.org>
Message-id: 1456240661-15422-1-git-send-email-peter.maydell@linaro.org
Reviewed-by: NEric Blake <eblake@redhat.com>

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: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NEric Blake <eblake@redhat.com>

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: NPeter Maydell <peter.maydell@linaro.org>
---
This just catches a couple of stragglers since I posted
the last clean-includes patchset last week.

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: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NEric Blake <eblake@redhat.com>

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: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NEric Blake <eblake@redhat.com>

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: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NEric Blake <eblake@redhat.com>

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: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NEric Blake <eblake@redhat.com>

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: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NEric Blake <eblake@redhat.com>

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: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NEric Blake <eblake@redhat.com>

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: NPeter Maydell <peter.maydell@linaro.org>

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: NDr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 1456161452-25318-1-git-send-email-dgilbert@redhat.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Adjust message levels, make messages more verbose.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Pure debug aid, print a warning in case unblocking
doesn't happen within one second.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>

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: NMarc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

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: NMarc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>