Commit Graph

55069 Commits

Author SHA1 Message Date
Peter Maydell e4335180d2 bsd-user/main.c: Fix unused variable warning
On OpenBSD the compiler warns:
bsd-user/main.c:622:21: warning: variable 'sig' set but not used [-Wunused-but-set-variable]

This is because a lot of the signal delivery code is #if-0'd
out as unused. Reshuffle #ifdefs a bit to silence the warning.

(We make the minimum change here rather than removing all the
bsd-user patchset which should make this all work correctly and
there's no point giving them an awkward rebase task.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1500395194-21455-5-git-send-email-peter.maydell@linaro.org
2017-07-21 15:01:09 +01:00
Peter Maydell 4a65a86af6 bsd-user/bsdload.c: Remove write-only id_change variable
On OpenBSD the compiler complains:
bsd-user/bsdload.c:54:17: warning: variable 'id_change' set but not used [-Wunused-but-set-variable]

This is dead code that was originally copied from linux-user.
We fixed this in linux-user in commit 331c23b5ca in 2011;
delete the useless code from bsd-user too.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 1500395194-21455-4-git-send-email-peter.maydell@linaro.org
2017-07-21 15:00:43 +01:00
Mark Cave-Ayland c8115f8eb8 block/vpc: fix uninitialised variable compiler warning
Since commit cfc87e00 "block/vpc.c: Handle write failures in
get_image_offset()" older versions of gcc (in this case 4.7) incorrectly
warn that "ret" can be used uninitialised in vpc_co_pwritev().

Setting ret to 0 at the start of vpc_co_pwritev() prevents the warning
in gcc 4.7 and enables compilation with -Werror to succeed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1500625265-23844-1-git-send-email-mark.cave-ayland@ilande.co.uk
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-21 15:00:07 +01:00
Peter Maydell ff9b547502 MIPS patches 2017-07-21
Changes:
 * Add Enhanced Virtual Addressing (EVA) support
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Merge remote-tracking branch 'remotes/yongbok/tags/mips-20170721' into staging

MIPS patches 2017-07-21

Changes:
* Add Enhanced Virtual Addressing (EVA) support

# gpg: Signature made Fri 21 Jul 2017 03:25:15 BST
# gpg:                using RSA key 0x2238EB86D5F797C2
# gpg: Good signature from "Yongbok Kim <yongbok.kim@imgtec.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: 8600 4CF5 3415 A5D9 4CFA  2B5C 2238 EB86 D5F7 97C2

* remotes/yongbok/tags/mips-20170721:
  target/mips: Enable CP0_EBase.WG on MIPS64 CPUs
  target/mips: Add EVA support to P5600
  target/mips: Implement segmentation control
  target/mips: Add segmentation control registers
  target/mips: Add an MMU mode for ERL
  target/mips: Abstract mmu_idx from hflags
  target/mips: Check memory permissions with mem_idx
  target/mips: Decode microMIPS EVA load & store instructions
  target/mips: Decode MIPS32 EVA load & store instructions
  target/mips: Prepare loads/stores for EVA
  target/mips: Add CP0_Ebase.WG (write gate) support
  target/mips: Weaken TLB flush on UX,SX,KX,ASID changes
  target/mips: Fix TLBWI shadow flush for EHINV,XI,RI
  target/mips: Fix MIPS64 MFC0 UserLocal on BE host

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-21 13:28:51 +01:00
Peter Maydell 14e167530a Final CI updates for soft-freeze
Tweaks from Paolo for J=x Travis compiles
 Bunch of updated cross-compile targets from Philippe
 Additional debug tools in travis image from Me
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-ci-updates-for-softfreeze-180717-2' into staging

Final CI updates for soft-freeze

Tweaks from Paolo for J=x Travis compiles
Bunch of updated cross-compile targets from Philippe
Additional debug tools in travis image from Me

# gpg: Signature made Tue 18 Jul 2017 11:00:26 BST
# gpg:                using RSA key 0xFBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>"
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-ci-updates-for-softfreeze-180717-2: (32 commits)
  docker: install clang since Shippable setup_ve() verify it is available
  docker: warn users to use newer debian8/debian9 base image
  docker: add debian Ports base image
  shippable: add win32/64 targets
  docker: add MXE (M cross environment) base image for MinGW-w64
  shippable: add mips64el targets
  docker: add debian/mips64el image
  shippable: use debian/mips[eb] targets
  docker: add debian/mips[eb] images
  shippable: add powerpc target
  docker: add debian/powerpc based on Jessie
  docker: add 'apt-fake' script which generate fake debian packages
  docker: add qemu:debian-jessie based on outdated jessie release
  shippable: add x86_64 targets
  shippable: add ppc64el targets
  shippable: add armel targets
  docker: enable nettle to extend code coverage on arm64
  docker: enable gcrypt to extend code coverage on amd64
  docker: enable netmap to extend code coverage on amd64
  docker: enable virgl to extend code coverage on amd64
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-21 11:44:53 +01:00
Peter Maydell 710259565b bsd-user/elfload.c: Fix set-but-not-used warnings
Fix various warnings about set-but-not-used variables on OpenBSD:

bsd-user/elfload.c:1158:15: warning: variable 'mapped_addr' set but not used [-Wunused-but-set-variable]
bsd-user/elfload.c:1165:9: warning: variable 'status' set but not used [-Wunused-but-set-variable]
bsd-user/elfload.c:1168:15: warning: variable 'elf_stack' set but not used [-Wunused-but-set-variable]

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1500395194-21455-3-git-send-email-peter.maydell@linaro.org
2017-07-21 10:34:40 +01:00
Peter Maydell 06943a6269 bsd-user/mmap.c: Move __thread attribute to right place
Avoid a compiler warning on OpenBSD:
bsd-user/mmap.c:28:1: warning: '__thread' is not at beginning of declaration [-Wold-style-declaration]
by moving the __thread attribute to its proper place.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1500395194-21455-2-git-send-email-peter.maydell@linaro.org
2017-07-21 10:34:40 +01:00
Peter Maydell 95a5befc2f Use qemu_tolower() and qemu_toupper(), not tolower() and toupper()
On NetBSD, where tolower() and toupper() are implemented using an
array lookup, the compiler warns if you pass a plain 'char'
to these functions:

gdbstub.c:914:13: warning: array subscript has type 'char'

This reflects the fact that toupper() and tolower() give
undefined behaviour if they are passed a value that isn't
a valid 'unsigned char' or EOF.

We have qemu_tolower() and qemu_toupper() to avoid this problem;
use them.

(The use in scsi-generic.c does not trigger the warning because
it passes a uint8_t; we switch it anyway, for consistency.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> for the s390 part.
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-id: 1500568290-7966-1-git-send-email-peter.maydell@linaro.org
2017-07-21 10:32:41 +01:00
Peter Maydell 02ffa034fb util/oslib-posix.c: Avoid warning on NetBSD
On NetBSD the compiler warns:
util/oslib-posix.c: In function 'sigaction_invoke':
util/oslib-posix.c:589:5: warning: missing braces around initializer [-Wmissing-braces]
     siginfo_t si = { 0 };
     ^
util/oslib-posix.c:589:5: warning: (near initialization for 'si.si_pad') [-Wmissing-braces]

because on this platform siginfo_t is defined as
  typedef union siginfo {
          char    si_pad[128];    /* Total size; for future expansion */
          struct _ksiginfo _info;
  } siginfo_t;

Avoid this warning by initializing the struct with {} instead;
this is a GCC extension but we use it all over the codebase already.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1500568341-8389-1-git-send-email-peter.maydell@linaro.org
2017-07-21 10:32:19 +01:00
James Hogan bad63a8008 target/mips: Enable CP0_EBase.WG on MIPS64 CPUs
Enable the CP0_EBase.WG (write gate) on the I6400 and MIPS64R2-generic
CPUs. This allows 64-bit guests to run KVM itself, which uses
CP0_EBase.WG to point CP0_EBase at XKPhys.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-21 03:23:44 +01:00
James Hogan 574da58e46 target/mips: Add EVA support to P5600
Add the Enhanced Virtual Addressing (EVA) feature to the P5600 core
configuration, along with the related Segmentation Control (SC) feature
and writable CP0_EBase.WG bit.

This allows it to run Malta EVA kernels.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-21 03:23:36 +01:00
James Hogan 480e79aedd target/mips: Implement segmentation control
Implement the optional segmentation control feature in the virtual to
physical address translation code.

The fixed legacy segment and xkphys handling is replaced with a dynamic
layout based on the segmentation control registers (which should be set
up even when the feature is not exposed to the guest).

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
[yongbok.kim@imgtec.com:
  cosmetic changes]
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
James Hogan cec56a733d target/mips: Add segmentation control registers
The optional segmentation control registers CP0_SegCtl0, CP0_SegCtl1 &
CP0_SegCtl2 control the behaviour and required privilege of the legacy
virtual memory segments.

Add them to the CP0 interface so they can be read and written when
CP0_Config3.SC=1, and initialise them to describe the standard legacy
layout so they can be used in future patches regardless of whether they
are exposed to the guest.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
James Hogan 42c86612d5 target/mips: Add an MMU mode for ERL
The segmentation control feature allows a legacy memory segment to
become unmapped uncached at error level (according to CP0_Status.ERL),
and in fact the user segment is already treated in this way by QEMU.

Add a new MMU mode for this state so that QEMU's mappings don't persist
between ERL=0 and ERL=1.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
[yongbok.kim@imgtec.com:
  cosmetic changes]
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
James Hogan b0fc600322 target/mips: Abstract mmu_idx from hflags
The MIPS mmu_idx is sometimes calculated from hflags without an env
pointer available as cpu_mmu_index() requires.

Create a common hflags_mmu_index() for the purpose of this calculation
which can operate on any hflags, not just with an env pointer, and
update cpu_mmu_index() itself and gen_intermediate_code() to use it.

Also update debug_post_eret() and helper_mtc0_status() to log the MMU
mode with the status change (SM, UM, or nothing for kernel mode) based
on cpu_mmu_index() rather than directly testing hflags.

This will also allow the logic to be more easily updated when a new MMU
mode is added.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
James Hogan 9fbf4a58c9 target/mips: Check memory permissions with mem_idx
When performing virtual to physical address translation, check the
required privilege level based on the mem_idx rather than the mode in
the hflags. This will allow EVA loads & stores to operate safely only on
user memory from kernel mode.

For the cases where the mmu_idx doesn't need to be overridden
(mips_cpu_get_phys_page_debug() and cpu_mips_translate_address()), we
calculate the required mmu_idx using cpu_mmu_index(). Note that this
only tests the MIPS_HFLAG_KSU bits rather than MIPS_HFLAG_MODE, so we
don't test the debug mode hflag MIPS_HFLAG_DM any longer. This should be
fine as get_physical_address() only compares against MIPS_HFLAG_UM and
MIPS_HFLAG_SM, neither of which should get set by compute_hflags() when
MIPS_HFLAG_DM is set.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
James Hogan 8fffc64696 target/mips: Decode microMIPS EVA load & store instructions
Implement decoding of microMIPS EVA load and store instruction groups in
the POOL31C pool. These use the same gen_ld(), gen_st(), gen_st_cond()
helpers as the MIPS32 decoding, passing the equivalent MIPS32 opcodes as
opc.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
James Hogan 7696414729 target/mips: Decode MIPS32 EVA load & store instructions
Implement decoding of MIPS32 EVA loads and stores. These access the user
address space from kernel mode when implemented, so for each instruction
we need to check that EVA is available from Config5.EVA & check for
sufficient COP0 privilege (with the new check_eva()), and then override
the mem_idx used for the operation.

Unfortunately some Loongson 2E instructions use overlapping encodings,
so we must be careful not to prevent those from being decoded when EVA
is absent.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
James Hogan dd4096cd2c target/mips: Prepare loads/stores for EVA
EVA load and store instructions access the user mode address map, so
they need to use mem_idx of MIPS_HFLAG_UM. Update the various utility
functions to allow mem_idx to be more easily overridden from the
decoding logic.

Specifically we add a mem_idx argument to the op_ld/st_* helpers used
for atomics, and a mem_idx local variable to gen_ld(), gen_st(), and
gen_st_cond().

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
James Hogan 74dbf824a1 target/mips: Add CP0_Ebase.WG (write gate) support
Add support for the CP0_EBase.WG bit, which allows upper bits to be
written (bits 31:30 on MIPS32, or bits 63:30 on MIPS64), along with the
CP0_Config5.CV bit to control whether the exception vector for Cache
Error exceptions is forced into KSeg1.

This is necessary on MIPS32 to support Segmentation Control and Enhanced
Virtual Addressing (EVA) extensions (where KSeg1 addresses may not
represent an unmapped uncached segment).

It is also useful on MIPS64 to allow the exception base to reside in
XKPhys, and possibly out of range of KSEG0 and KSEG1.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
[yongbok.kim@imgtec.com:
  minor changes]
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
James Hogan 9658e4c342 target/mips: Weaken TLB flush on UX,SX,KX,ASID changes
There is no need to invalidate any shadow TLB entries when the ASID
changes or when access to one of the 64-bit segments has been disabled,
since doing so doesn't reveal to software whether any TLB entries have
been evicted into the shadow half of the TLB.

Therefore weaken the tlb flushes in these cases to only flush the QEMU
TLB.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Tested-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
James Hogan eff6ff9431 target/mips: Fix TLBWI shadow flush for EHINV,XI,RI
Writing specific TLB entries with TLBWI flushes shadow TLB entries
unless an existing entry is having its access permissions upgraded. This
is necessary as software would from then on expect the previous mapping
in that entry to no longer be in effect (even if QEMU has quietly
evicted it to the shadow TLB on a TLBWR).

However it won't do this if only EHINV, XI, or RI bits have been set,
even if that results in a reduction of permissions, so add the necessary
checks to invoke the flush when these bits are set.

Fixes: 2fb58b7374 ("target-mips: add RI and XI fields to TLB entry")
Fixes: 9456c2fbcd ("target-mips: add TLBINV support")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Tested-by: Yongbok Kim <yongbok.kim@imgtec.com>
[yongbok.kim@imgtec.com:
  cosmetic changes]
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
James Hogan e40df9a80b target/mips: Fix MIPS64 MFC0 UserLocal on BE host
Using MFC0 to read CP0_UserLocal uses tcg_gen_ld32s_tl, however
CP0_UserLocal is a target_ulong. On a big endian host with a MIPS64
target this reads and sign extends the more significant half of the
64-bit register.

Fix this by using ld_tl to load the whole target_ulong and ext32s_tl to
sign extend it, as done for various other target_ulong COP0 registers.

Fixes: d279279e2b ("target-mips: implement UserLocal Register")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Petar Jovanovic <petar.jovanovic@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-20 22:42:26 +01:00
Peter Maydell 4439e1f156 usb: Fix build with newer gcc
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 =In3i
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/usb-20170720-pull-request' into staging

usb: Fix build with newer gcc

# gpg: Signature made Thu 20 Jul 2017 09:44:55 BST
# gpg:                using RSA key 0x4CB6D8EED3E87138
# 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>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/usb-20170720-pull-request:
  usb: Fix build with newer gcc

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-20 17:52:48 +01:00
Peter Maydell 25d0233c1a ui fixes (vnc docs, keymaps) for 2.10
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/ui-20170720-pull-request' into staging

ui fixes (vnc docs, keymaps) for 2.10

# gpg: Signature made Thu 20 Jul 2017 08:54:25 BST
# gpg:                using RSA key 0x4CB6D8EED3E87138
# 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>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/ui-20170720-pull-request:
  keymaps: fr-ca: more fixups
  vnc: Clarify documentation of QMP command change

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-20 16:40:01 +01:00
Peter Maydell 64f871e3c9 tests: Handle $RANDOM not being supported by the shell
In various places in our test makefiles and scripts we use the
shell $RANDOM to create a random number. This is a bash
specific extension, and doesn't work on other shells.
With dash the shell doesn't complain, it just effectively
always evaluates $RANDOM to 0:
  echo $((RANDOM + 32768))     => 32768

However, on NetBSD the shell will complain:
  "-sh: arith: syntax error: "RANDOM + 32768"

which means that "make check" fails.

Switch to using "${RANDOM:-0}" instead of $RANDOM,
which will portably either give us a random number or zero.
This means that on non-bash shells we don't get such
good test coverage via the MALLOC_PERTURB_ setting, but
we were already in that situation for non-bash shells.

Our only other uses of $RANDOM (in tests/qemu-iotests/check
and tests/qemu-iotests/162) are in shell scripts which use
a #!/bin/bash line so they are always run under bash.

Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Kamil Rytarowski <n54@gmx.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1500029117-6387-1-git-send-email-peter.maydell@linaro.org
2017-07-20 15:00:00 +01:00
Kamil Rytarowski b1449edb79 configure: Don't build ivshmem tools unless CONFIG_IVSHMEM is set
Don't try to build the ivshmem-server and ivshmem-client tools unless
CONFIG_IVSHMEM is set.

This fixes in passing a build bug on NetBSD, which fails to build the
ivshmem tools because they use shm_open() and on NetBSD that requires
linking against -lrt.

Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1500021225-4118-4-git-send-email-peter.maydell@linaro.org
[PMM: moved some code into earlier patches; minor bugfixes;
 added commit message]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-20 14:58:19 +01:00
Kamil Rytarowski e0580342b3 configure: Use an explicit CONFIG_IVSHMEM rather than CONFIG_EVENTFD
Rather than relying on everywhere that cares about whether the host
supports ivshmem using CONFIG_EVENTFD, make configure set an explicit
CONFIG_IVSHMEM.

Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1500021225-4118-3-git-send-email-peter.maydell@linaro.org
[PMM: split out from another patch, add commit message]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-20 14:58:19 +01:00
Peter Maydell ab7a75b553 configure: Rename CONFIG_IVSHMEM to CONFIG_IVSHMEM_DEVICE
The current CONFIG_IVSHMEM is confusing, because it looks like it's a
flag for "do we have ivshmem support?", but actually it's a flag for
"is the ivshmem PCI device being compiled?" (and implicitly "do we
have ivshmem support?" is tested with CONFIG_EVENTFD).

Rename it to CONFIG_IVSHMEM_DEVICE to clear this confusion up;
shortly we will add a new CONFIG_IVSHMEM which really does indicate
whether the host can support ivshmem.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1500021225-4118-2-git-send-email-peter.maydell@linaro.org
2017-07-20 14:56:20 +01:00
Peter Maydell 8dbcd0e5e7 git orderfile and editorconfig for 2.10
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 =GRXJ
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/misc-20170720-pull-request' into staging

git orderfile and editorconfig for 2.10

# gpg: Signature made Thu 20 Jul 2017 09:00:01 BST
# gpg:                using RSA key 0x4CB6D8EED3E87138
# 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>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/misc-20170720-pull-request:
  add editorconfig
  add scripts/git.orderfile

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-20 12:04:05 +01:00
Peter Maydell 87a60ee84f Queued tcg and tcg code gen related cleanups
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 =kFUH
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20170719' into staging

Queued tcg and tcg code gen related cleanups

# gpg: Signature made Thu 20 Jul 2017 00:32:00 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-tcg-20170719:
  tcg: Pass generic CPUState to gen_intermediate_code()
  tcg/tci: enable bswap16_i64
  target/alpha: optimize gen_cvtlq() using deposit op
  target/sparc: optimize gen_op_mulscc() using deposit op
  target/sparc: optimize various functions using extract op
  target/ppc: optimize various functions using extract op
  target/m68k: optimize bcd_flags() using extract op
  target/arm: optimize aarch32 rev16
  target/arm: Optimize aarch64 rev16
  coccinelle: add a script to optimize tcg op using tcg_gen_extract()
  coccinelle: ignore ASTs pre-parsed cached C files
  tcg: Expand glue macros before stringifying helper names
  util/cacheinfo: Add missing include for ppc linux
  tcg/mips: reserve a register for the guest_base.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-20 11:00:10 +01:00
Khem Raj 04b33e2186 Replace 'struct ucontext' with 'ucontext_t' type
glibc used to have:

   typedef struct ucontext { ... } ucontext_t;

glibc now has:

   typedef struct ucontext_t { ... } ucontext_t;

(See https://sourceware.org/bugzilla/show_bug.cgi?id=21457
 for detail and rationale for the glibc change)

However, QEMU used "struct ucontext" in declarations. This is a
private name and compatibility cannot be guaranteed. Switch to
only using the standardized type name.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Message-id: 20170628204452.41230-1-raj.khem@gmail.com
Cc: Kamil Rytarowski <kamil@netbsd.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Laurent Vivier <laurent@vivier.eu>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[PMM: Rewrote commit message, based mostly on the one from
 Nathaniel McCallum]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-20 10:10:28 +01:00
Eric Blake 121829cb21 usb: Fix build with newer gcc
gcc 7 is pickier about our sources:

hw/usb/bus.c: In function ‘usb_port_location’:
hw/usb/bus.c:410:66: error: ‘%d’ directive output may be truncated writing between 1 and 11 bytes into a region of size between 0 and 15 [-Werror=format-truncation=]
         snprintf(downstream->path, sizeof(downstream->path), "%s.%d",
                                                                  ^~
hw/usb/bus.c:410:9: note: ‘snprintf’ output between 3 and 28 bytes into a destination of size 16
         snprintf(downstream->path, sizeof(downstream->path), "%s.%d",
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                  upstream->path, portnr);
                  ~~~~~~~~~~~~~~~~~~~~~~~

But we know that there are at most 5 levels of USB hubs, with at
most two digits per level; that plus the separating dots means we
use at most 15 bytes (including trailing NUL) of our 16-byte field.
Adding an assertion to show gcc that we checked for truncation is
enough to shut up the false-positive warning.

Inspired by an idea by Dr. David Alan Gilbert <dgilbert@redhat.com>.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20170717151334.17954-1-eblake@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-07-20 10:02:11 +02:00
Gerd Hoffmann a62e20f6f8 add editorconfig
Add a .editorconfig file for qemu.  Specifies the indent and tab style
for various files (C code and Makefiles for starters).  Most popular
editors support this either natively or via plugin.

Check http://editorconfig.org/ for details.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20170717101547.22295-1-kraxel@redhat.com
2017-07-20 09:56:56 +02:00
Gerd Hoffmann 3b6bb28a6c add scripts/git.orderfile
Based on a old patch by Laszlo.
Time to get this in ...

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Message-id: 20170717101632.23247-1-kraxel@redhat.com
2017-07-20 09:56:41 +02:00
Gerd Hoffmann b02cf99b9d keymaps: fr-ca: more fixups
Fixes: https://bugs.launchpad.net/qemu/+bug/533613
Cc: Thomas Huth <thuth@redhat.com>
Suggested-by: Jérôme Poulin <jeromepoulin@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20170717133444.16743-1-kraxel@redhat.com
2017-07-20 09:25:44 +02:00
Markus Armbruster 6dfe8eabe2 vnc: Clarify documentation of QMP command change
QMP command

    { "execute": "change",
      "arguments": { "device": "vnc", "target": "password", "arg": PWD } }

behaves just like

    { "execute": "change-vnc-password",
      "arguments": { "password", "arg": PWD } }

Their documentation differs, however.  According to
change-vnc-password's documentation, "an empty password [...] will set
the password to the empty string", while change's documentation claims
"no future logins will be allowed".  The former is actually correct.
Replace the incorrect claim by a reference to change-vnc-password.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 1500448182-21376-1-git-send-email-armbru@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-07-20 09:25:06 +02:00
Lluís Vilanova 9c489ea6be tcg: Pass generic CPUState to gen_intermediate_code()
Needed to implement a target-agnostic gen_intermediate_code()
in the future.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Benneé <alex.benee@linaro.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-Id: <150002025498.22386.18051908483085660588.stgit@frigg.lan>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:16 -07:00
Philippe Mathieu-Daudé 797ed66d29 tcg/tci: enable bswap16_i64
Altough correctly implemented, bswap16_i64() never got tested/executed so the
safety TODO() statement was never removed.

Since it got now tested the TODO() can be removed.

while running Alex Bennée's image aarch64-linux-3.15rc2-buildroot.img:

Trace 0x7fa1904b0890 [0: ffffffc00036cd04]
----------------
IN:
0xffffffc00036cd24:  5ac00694      rev16 w20, w20

OP:
 ---- ffffffc00036cd24 0000000000000000 0000000000000000
 ext32u_i64 tmp3,x20
 ext16u_i64 tmp2,tmp3
 bswap16_i64 x20,tmp2
 movi_i64 tmp4,$0x10
 shr_i64 tmp2,tmp3,tmp4
 ext16u_i64 tmp2,tmp2
 bswap16_i64 tmp2,tmp2
 deposit_i64 x20,x20,tmp2,$0x10,$0x10

Linking TBs 0x7fa1904b0890 [ffffffc00036cd04] index 0 -> 0x7fa1904b0aa0 [ffffffc00036cd24]
Trace 0x7fa1904b0aa0 [0: ffffffc00036cd24]
TODO qemu/tci.c:1049: tcg_qemu_tb_exec()
qemu/tci.c:1049: tcg fatal error
Aborted

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jaroslaw Pelczar <j.pelczar@samsung.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20170718045540.16322-11-f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:16 -07:00
Philippe Mathieu-Daudé 729028a6e2 target/alpha: optimize gen_cvtlq() using deposit op
Suggested-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170718045540.16322-10-f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:16 -07:00
Philippe Mathieu-Daudé 08d64e0db0 target/sparc: optimize gen_op_mulscc() using deposit op
Suggested-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170718045540.16322-9-f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:16 -07:00
Philippe Mathieu-Daudé 0b1183e315 target/sparc: optimize various functions using extract op
Done with the Coccinelle semantic patch
scripts/coccinelle/tcg_gen_extract.cocci.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:16 -07:00
Philippe Mathieu-Daudé e2622073e0 target/ppc: optimize various functions using extract op
Done with the Coccinelle semantic patch
scripts/coccinelle/tcg_gen_extract.cocci.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20170718045540.16322-6-f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:16 -07:00
Philippe Mathieu-Daudé 0d9acef240 target/m68k: optimize bcd_flags() using extract op
Done with the Coccinelle semantic patch
scripts/coccinelle/tcg_gen_extract.cocci.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718045540.16322-5-f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:15 -07:00
Aurelien Jarno 68cedf733a target/arm: optimize aarch32 rev16
Use the same mask to avoid having to load two different constants, as
suggested by Richard Henderson.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170516230159.4195-2-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:15 -07:00
Richard Henderson abb1066df3 target/arm: Optimize aarch64 rev16
It is much shorter to reverse all 4 half-words in parallel
than extract, reverse, and deposit each in turn.

Suggested-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:15 -07:00
Philippe Mathieu-Daudé d97dd988ec coccinelle: add a script to optimize tcg op using tcg_gen_extract()
The following thread was helpful while writing this script:

    https://github.com/coccinelle/coccinelle/issues/86

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170718045540.16322-3-f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:15 -07:00
Philippe Mathieu-Daudé 846b0c1b5a coccinelle: ignore ASTs pre-parsed cached C files
files generated using coccinelle tool: 'spatch --use-cache'

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170718045540.16322-2-f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:15 -07:00
Richard Henderson 44368ac62d tcg: Expand glue macros before stringifying helper names
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:15 -07:00
Philippe Mathieu-Daudé 810d5cad40 util/cacheinfo: Add missing include for ppc linux
This include was forgotten when splitting cacheinfo.c out of
tcg/ppc/tcg-target.inc.c (see commit b255b2c8).

For a Centos7 host, the include path

	<signal.h>
	  <bits/sigcontext.h>
            <asm/sigcontext.h>
              <asm/elf.h>
	        <asm/auxvec.h>

implicitly pulls in the desired AT_* defines.
Not so for Debian Jessie.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170711015524.22936-1-f4bug@amsat.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-07-19 14:45:15 -07:00