Add missing FICLONE and FICLONERANGE ioctls.
Signed-off-by: NHelge Deller <deller@gmx.de>
Reviewed-by: NLaurent Vivier <laurent@vivier.eu>
Message-Id: <20170211222602.GA6399@ls3530.fritz.box>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>

Coverity doesn't like the code in load_symbols() which assumes
it can use 'int' for a variable that might hold an offset into
the guest ELF file, because in a 64-bit guest that could
overflow. Guest binaries with 2GB sections aren't very likely
and this isn't a security issue because we fully trust the
guest linux-user binary anyway, but we might as well use the
right types, which will placate Coverity. Use uint64_t to
hold section sizes, and bail out if the symbol table is too
large rather than just overflowing an int.

(Coverity issue CID1005776)
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NLaurent Vivier <laurent@vivier.eu>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1486249533-5260-1-git-send-email-peter.maydell@linaro.org>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>

A segfault is noticed when an emulated program uses any of ucontext
regs fields. Risu detected this issue in the following operation when
handling a signal:
  ucontext_t *uc = (ucontext_t*)uc;
  uc->uc_mcontext.regs->nip += 4;

but this works fine:
  uc->uc_mcontext.gp_regs[PT_NIP] += 4;

This patch set regs to a valid location as well as other sigcontext
fields.
Signed-off-by: NJose Ricardo Ziviani <joserz@linux.vnet.ibm.com>
Reviewed-by: NLaurent Vivier <laurent@vivier.eu>
Message-Id: <1485900317-3256-1-git-send-email-joserz@linux.vnet.ibm.com>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>

tests/tcg/mmap test fails with values other than default target page
size. When creating a map beyond EOF, extra anonymous pages are added up
to the target page boundary. Currently, this operation is performed only
when qemu_real_host_page_size < TARGET_PAGE_SIZE, but it should be
performed if the configured page size (qemu -p) is larger than
qemu_real_host_page_size too.
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
[pranith: dropped checkpatch changes]
Signed-off-by: NPranith Kumar <bobby.prani@gmail.com>
Reviewed-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NLaurent Vivier <laurent@vivier.eu>
Message-Id: <20170119151533.29328-2-bobby.prani@gmail.com>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>

old_value is the 4th argument of timer_settime(), not the 2nd.
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: NPranith Kumar <bobby.prani@gmail.com>
Reviewed-by: NLaurent Vivier <laurent@vivier.eu>
Message-Id: <20170119151533.29328-1-bobby.prani@gmail.com>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>

Signed-off-by: NJohn Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: NLaurent Vivier <laurent@vivier.eu>
Message-Id: <20170116224915.19430-2-glaubitz@physik.fu-berlin.de>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>

Signed-off-by: NJohn Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: NLaurent Vivier <laurent@vivier.eu>
Message-Id: <20170116223140.18634-2-glaubitz@physik.fu-berlin.de>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>

Add QEMU_IFLA_GSO_MAX_SEGS and QEMU_IFLA_GSO_MAX_SIZE
in host_to_target_data_link_rtattr().

These two messages are sent by the host kernel when
we use "sudo".

Found with qemu-m68k and Debian etch-m68k (sudo 1.6.8p12-4) and
host kernel 4.7.6-200.fc24.x86_64
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>
Message-Id: <1477530049-15676-1-git-send-email-laurent@vivier.eu>

If fourth argument is NULL it should be passed without
using lock_user function which would, in that case, return
EFAULT, and system call supports passing NULL as fourth argument.
Signed-off-by: NLena Djokic <Lena.Djokic@rt-rk.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

Calculation of 64-bit offset was not correct for all cases.
Signed-off-by: NLena Djokic <Lena.Djokic@rt-rk.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

This commit adds necessary conversion of argument passed to inotify_init1.
inotify_init1 flags can be IN_NONBLOCK and IN_CLOEXEC which rely on O_NONBLOCK
and O_CLOEXEC and those can have different values on different platforms.
Signed-off-by: NLena Djokic <Lena.Djokic@rt-rk.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

The LT instruction was added in the extended immediate facility
introduced with the z9-109 processor.

Cc: Riku Voipio <riku.voipio@iki.fi>
Reported-by: NMichael Tokarev <mjt@tls.msk.ru>
Fixes: c9bc3437Suggested-by: NAurelien Jarno <aurelien@aurel32.net>
Reviewed-by: NThomas Huth <thuth@redhat.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

linux-user doesn't work on cygwin anyways.

Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

This preprocessor macro isn't set anywhere. Remove
the check so -strace can show these options.
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

Queued openrisc patches

# gpg: Signature made Mon 13 Feb 2017 21:21:03 GMT
# 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-or-20170214: (24 commits)
  target/openrisc: Optimize for r0 being zero
  target/openrisc: Tidy handling of delayed branches
  target/openrisc: Tidy ppc/npc implementation
  target/openrisc: Optimize l.jal to next
  target/openrisc: Fix madd
  target/openrisc: Implement muld, muldu, macu, msbu
  target/openrisc: Represent MACHI:MACLO as a single unit
  target/openrisc: Implement msync
  target/openrisc: Enable trap, csync, msync, psync for user mode
  target/openrisc: Set flags on helpers
  target/openrisc: Use movcond where appropriate
  target/openrisc: Keep SR_CY and SR_OV in a separate variables
  target/openrisc: Keep SR_F in a separate variable
  target/openrisc: Invert the decoding in dec_calc
  target/openrisc: Put SR[OVE] in TB flags
  target/openrisc: Streamline arithmetic and OVE
  target/openrisc: Rationalize immediate extraction
  target/openrisc: Tidy insn dumping
  target/openrisc: Implement lwa, swa
  target/openrisc: Fix exception handling status registers
  ...
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

The HW does not special-case r0, but the ABI specifies that r0 should
contain 0.  If we expose this fact to the optimizer, we can simplify
a lot of the generated code.  We must of course verify that r0==0, but
that is trivial to do with a TB flag.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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

The NPC SPR is really only supposed to be used for FPGA debugging.
It contains the same contents as PC, unless one plays games.  Follow
the or1ksim implementation in flushing delayed branch state when it
is changed.

The PPC SPR need not be updated every instruction, merely when we
exit the TB or attempt to read its contents.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

This allows the tcg optimizer to see, and fold, all of the
constants involved in a GOT base register load sequence.
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Note that the specification for lf.madd.s is confused.  It's
the only mention of supposed FPMADDHI/FPMADDLO special registers.
On the other hand, or1ksim implements a somewhat normal non-fused
multiply and add.  Mirror that.
Reviewed-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Reviewed-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Significantly simplifies the implementation of the use of MAC.
Reviewed-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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

Not documented as disabled for user mode.
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Reviewed-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

This significantly streamlines carry and overflow production.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

This avoids having to keep merging and extracting the flag from SR.
Reviewed-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Decoding the opcodes in the right order reduces by 100+ lines.
Also, it happens to put the opcodes in the same order as Chapter 17.
Reviewed-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Removes a call at execution time for overflow exceptions.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Fix incorrect overflow calculation.  Move overflow exception check
to a helper function, to eliminate inline branches.  Remove some
incorrect special casing of R0.  Implement multiply inline.
Reviewed-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

The architecture manual is consistent in using "I" for signed
fields and "K" for unsigned fields.  Mirror that.
Reviewed-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Avoids warnings from unused variables etc.
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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

I am working on testing instruction emulation patches for the linux
kernel. During testing I found these 2 issues:

 - sets DSX (delay slot exception) but never clears it
 - EEAR for illegal insns should point to the bad exception (as per
   openrisc spec) but its not

This patch fixes these two issues by clearing the DSX flag when not in a
delay slot and by setting EEAR to exception PC when handling illegal
instruction exceptions.

After this patch the openrisc kernel with latest patches boots great on
qemu and instruction emulation works.

Cc: qemu-trivial@nongnu.org
Cc: openrisc@lists.librecores.org
Signed-off-by: NStafford Horne <shorne@gmail.com>
Message-Id: <20170113220028.29687-1-shorne@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Threads work much better when you set the TLS register.
This was fixed in the upstream kernel for Linux 4.9.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

We need to handle EXCP_DEBUG and EXCP_INTERRUPT.
We need to send signals to the guest using queue_signal.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

The page size on openrisc is 8k.  Sync the shift
required for the mmap2 syscall.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

This is in keeping with the toolchain and or1ksim.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Migration

  Amit: migration: remove myself as maintainer
        MAINTAINERS: update my email address
  Ashijeet: migrate: Introduce zero RAM checks to skip RAM migration
  Pavel: Postcopy release RAM
  Halil: consolidate VMStateField.start
  Hailiang: COLO: fix setting checkpoint-delay not working properly
         COLO: Shutdown related socket fd while do failover
         COLO: Don't process failover request while loading VM's state
  Me:
     migration: Add VMSTATE_UNUSED_VARRAY_UINT32
     migration: Add VMSTATE_WITH_TMP
     tests/migration: Add test for VMSTATE_WITH_TMP
     virtio-net VMState conversion and new VMSTATE macros

# gpg: Signature made Mon 13 Feb 2017 17:36:39 GMT
# gpg:                using RSA key 0x0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@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: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert/tags/pull-migration-20170213a:
  virtio/migration: Migrate virtio-net to VMState
  tests/migration: Add test for VMSTATE_WITH_TMP
  migration: Add VMSTATE_WITH_TMP
  migration: Add VMSTATE_UNUSED_VARRAY_UINT32
  COLO: Don't process failover request while loading VM's state
  COLO: Shutdown related socket fd while do failover
  COLO: fix setting checkpoint-delay not working properly
  migration: consolidate VMStateField.start
  migrate: Introduce zero RAM checks to skip RAM migration
  migration: discard non-dirty ram pages after the start of postcopy
  add 'release-ram' migrate capability
  migration: add MigrationState arg for ram_save_/compressed_/page()
  MAINTAINERS: update my email address
  migration: remove myself as maintainer
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>