Commit Graph

2253 Commits

Author SHA1 Message Date
Daniel P. Berrangé
6d5d5dde9a linux-user: fix to handle variably sized SIOCGSTAMP with new kernels
The SIOCGSTAMP symbol was previously defined in the
asm-generic/sockios.h header file. QEMU sees that header
indirectly via sys/socket.h

In linux kernel commit 0768e17073dc527ccd18ed5f96ce85f9985e9115
the asm-generic/sockios.h header no longer defines SIOCGSTAMP.
Instead it provides only SIOCGSTAMP_OLD, which only uses a
32-bit time_t on 32-bit architectures.

The linux/sockios.h header then defines SIOCGSTAMP using
either SIOCGSTAMP_OLD or SIOCGSTAMP_NEW as appropriate. If
SIOCGSTAMP_NEW is used, then the tv_sec field is 64-bit even
on 32-bit architectures

To cope with this we must now convert the old and new type from
the target to the host one.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Message-Id: <20190718130641.15294-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-07-19 09:33:55 +02:00
Rémi Denis-Courmont
0acd4ab849 linux-user: check valid address in access_ok()
Fix a crash with LTP testsuite and aarch64:

  tst_test.c:1015: INFO: Timeout per run is 0h 05m 00s
  qemu-aarch64: .../qemu/accel/tcg/translate-all.c:2522: page_check_range: Assertion `start < ((target_ulong)1 << L1_MAP_ADDR_SPACE_BITS)' failed.
  qemu:handle_cpu_signal received signal outside vCPU context @ pc=0x60001554

page_check_range() should never be called with address outside the guest
address space. This patch adds a guest_addr_valid() check in access_ok()
to only call page_check_range() with a valid address.

Fixes: f6768aa1b4 ("target/arm: fix AArch64 virtual address space size")
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20190704084115.24713-1-lvivier@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-07-18 13:57:28 +02:00
Aleksandar Markovic
4ced996ffe linux-user: Fix structure target_ucontext for MIPS
Structure ucontext for MIPS is defined in the following way in
Linux kernel:

(arch/mips/include/uapi/asm/ucontext.h, lines 54-64)

struct ucontext {
    /* Historic fields matching asm-generic */
    unsigned long       uc_flags;
    struct ucontext     *uc_link;
    stack_t             uc_stack;
    struct sigcontext   uc_mcontext;
    sigset_t            uc_sigmask;

    /* Extended context structures may follow ucontext */
    unsigned long long	uc_extcontext[0];
};

Fix the structure target_ucontext for MIPS to reflect the definition
above, except the correction for field uc_extcontext, which will
follow at some later time.

Fixes: 94c5495d

Reported-by: Dragan Mladjenovic <dmladjenovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1562931470-3700-2-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-07-16 18:37:13 +02:00
Peter Maydell
aff8cee805 RISC-V Patches for the 4.1 Soft Freeze, Part 2 v3
This pull request contains a handful of patches that I'd like to target
 for the 4.1 soft freeze.  There are a handful of new features:
 
 * Support for the 1.11.0, the latest privileged specification.
 * Support for reading and writing the PRCI registers.
 * Better control over the ISA of the target machine.
 * Support for the cpu-topology device tree node.
 
 Additionally, there are a handful of bug fixes including:
 
 * Load reservations are now broken by both store conditional and by
   scheduling, which fixes issues with parallel applications.
 * Various fixes to the PMP implementation.
 * Fixes to the 32-bit linux-user syscall ABI.
 * Various fixes for instruction decodeing.
 * A fix to the PCI device tree "bus-range" property.
 
 This boots 32-bit and 64-bit OpenEmbedded.
 
 Changes since v2 [riscv-for-master-4.1-sf1-v2]:
 
 * Dropped OpenSBI.
 
 Changes since v1 [riscv-for-master-4.1-sf1]:
 
 * Contains a fix to the sifive_u OpenSBI integration.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEAM520YNJYN/OiG3470yhUCzLq0EFAl0caa0THHBhbG1lckBk
 YWJiZWx0LmNvbQAKCRDvTKFQLMurQRTNEACwLeajFWIdeltz9PpzlmbABoY9p8rT
 amMVjEcisMmIzV7UjLcmqYAyPUFb2KvNy5EA15op0nQKGv7Mm7c4P7V5/eQyz9wE
 9/81s3OoOuRa79mwgF3aekA6iQXb0ID+kMaIFSrbTTyECOULb2kb4/xxOH+N13wh
 8VfYBdgxsvC37DDShXuzGOdtWpu1wZDgYwYOHAIns/r90FYA1w2vJhjn72AiDfnY
 QKwm6FHiplraMfbURRxbgU5oUIXsCelYNB3Fu9dFOuVwgmwrwFHJIG1Mi5pvMkbo
 vRnSDX5vKKpeyFj6U23RnCJpxoORe0Bp6GnD5MbByUr9oroBbD3dkNryXU0da5jN
 e5Jje3F8v/g3KdRUm6AQJb6JBBOZu4uSUn9jUfqlNLFDvUDLTq74kfJHLzsWr4Ds
 k/rP3fmyked27KnEwCOzAEEDI4Z3exbwnoPiP5ik92ZkSL7PVwLpWvB/8tn8HQab
 ldq8w/piUkbC9ug2p07TFg6aST8YjzuGHtOW4M8TpX5cuAiHPbjS54dj88+EL5i7
 shBWFKEuKV0ESVgIBwJu9qlX5QvQWJA4LSo35PyrGJb6xV+lQ3j0pdcOojL6ZSkk
 JDbQtC1nsxDf/Qt4vHc4VbOZQChO+FYs2Smin8Wl5gN+hReY6lB/ZtHjYl7uw2bC
 9Ijy2OkCjtz4mw==
 =lliO
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/palmer/tags/riscv-for-master-4.1-sf1-v3' into staging

RISC-V Patches for the 4.1 Soft Freeze, Part 2 v3

This pull request contains a handful of patches that I'd like to target
for the 4.1 soft freeze.  There are a handful of new features:

* Support for the 1.11.0, the latest privileged specification.
* Support for reading and writing the PRCI registers.
* Better control over the ISA of the target machine.
* Support for the cpu-topology device tree node.

Additionally, there are a handful of bug fixes including:

* Load reservations are now broken by both store conditional and by
  scheduling, which fixes issues with parallel applications.
* Various fixes to the PMP implementation.
* Fixes to the 32-bit linux-user syscall ABI.
* Various fixes for instruction decodeing.
* A fix to the PCI device tree "bus-range" property.

This boots 32-bit and 64-bit OpenEmbedded.

Changes since v2 [riscv-for-master-4.1-sf1-v2]:

* Dropped OpenSBI.

Changes since v1 [riscv-for-master-4.1-sf1]:

* Contains a fix to the sifive_u OpenSBI integration.

# gpg: Signature made Wed 03 Jul 2019 09:39:09 BST
# gpg:                using RSA key 00CE76D1834960DFCE886DF8EF4CA1502CCBAB41
# gpg:                issuer "palmer@dabbelt.com"
# gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>" [unknown]
# gpg:                 aka "Palmer Dabbelt <palmer@sifive.com>" [unknown]
# 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: 00CE 76D1 8349 60DF CE88  6DF8 EF4C A150 2CCB AB41

* remotes/palmer/tags/riscv-for-master-4.1-sf1-v3: (32 commits)
  hw/riscv: Extend the kernel loading support
  hw/riscv: Add support for loading a firmware
  hw/riscv: Split out the boot functions
  riscv: sifive_u: Update the plic hart config to support multicore
  riscv: sifive_u: Do not create hard-coded phandles in DT
  disas/riscv: Fix `rdinstreth` constraint
  disas/riscv: Disassemble reserved compressed encodings as illegal
  riscv: virt: Add cpu-topology DT node.
  RISC-V: Update syscall list for 32-bit support.
  RISC-V: Clear load reservations on context switch and SC
  RISC-V: Add support for the Zicsr extension
  RISC-V: Add support for the Zifencei extension
  target/riscv: Add support for disabling/enabling Counters
  target/riscv: Remove user version information
  target/riscv: Require either I or E base extension
  qemu-deprecated.texi: Deprecate the RISC-V privledge spec 1.09.1
  target/riscv: Set privledge spec 1.11.0 as default
  target/riscv: Add the mcountinhibit CSR
  target/riscv: Add the privledge spec version 1.11.0
  target/riscv: Restructure deprecatd CPUs
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-07-04 11:09:19 +01:00
Laurent Vivier
01154f792d linux-user: move QEMU_IFLA_BR_MULTI_BOOLOPT to the good function
QEMU_IFLA_BR_MULTI_BOOLOPT has been added to the wrong function
host_to_target_slave_data_bridge_nlattr(). Move it to
host_to_target_data_bridge_nlattr().

This fixes following error:
  Unknown QEMU_IFLA_BR type 46

Fixes: 61b463fbf6 ("linux-user: add new netlink types")
Message-Id: <20190626150855.27446-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-07-02 16:56:46 +02:00
Aleksandar Markovic
64ce541c0b linux-user: Handle EXCP_FPE properly for MIPS
Handle EXCP_FPE properly for MIPS in cpu loop.

Note that a vast majority of FP instructions are not affected by
the absence of the code in this patch, as they use alternative code
paths for handling floating point exceptions (see, for example,
invocations of update_fcr31()) - they rely on softfloat library for
keeping track on exceptions that needs to be raised. However, there
are few MIPS FP instructions (an example is CTC1) that use function
do_raise_exception() directly, and they need the case that is added
in this patch to propagate the FPE exception as designed.

The code is based on kernel's function force_fcr31_sig() in
arch/mips/kernel.traps.c.

Reported-by: Yunqiang Su <ysu@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1561718618-20218-6-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-07-02 16:56:46 +02:00
Aleksandar Markovic
1272a6c488 linux-user: Introduce TARGET_HAVE_ARCH_STRUCT_FLOCK
Bring target_flock definitions to be more in sync with the way
flock is defined in kernel.

Basically, the rules from the kernel are:

1. Majority of architectures have a common flock definition.

2. Architectures with 32-bit MIPS ABIs have a sligtly different
flock definition; those architectures are the only arcitectures
that have HAVE_ARCH_STRUCT_FLOCK defined, and that preprocessor
constant is used in the common header as a flag for including or
not including common flock definition.

3. Sparc architectures also have a sligtly different flock
definition, but the difference is only the padding at the end of
the structure. The presence of that padding is determined by
preprocessor constants __ARCH_FLOCK6_PAD and __ARCH_FLOCK64_PAD.

QEMU linux-user already implements rules 1. and 3. in a very
similar way as they are implemented in kernel. However, rule 2.
is implemented in a dissimilar way (for example, the constant
TARGET_HAVE_ARCH_STRUCT_FLOCK is missing), and this patch brings
QEMU implementation much closer to the kernel implementation.
TARGET_HAVE_ARCH_STRUCT_FLOCK64 constant is also introduced to
mimic HAVE_ARCH_STRUCT_FLOCK64 from kernel, but it is not defined
anywhere, however, this is the case with HAVE_ARCH_STRUCT_FLOCK64
in kernel as well.

Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1561718618-20218-5-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-07-02 16:56:46 +02:00
Aleksandar Markovic
bf9136722c linux-user: Fix target_flock structure for MIPS O64 ABI
Among MIPS ABIs, only MIPS O32 and N32 have special (different
than other architectures) definition of structure flock in kernel.

Bring target_flock definition in QEMU for MIPS O64 ABI to the
correct state, which is currently different than the most common
definition, and it should actually be the same.

Reported-by: Dragan Mladjenovic <dmladjenovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1561718618-20218-4-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-07-02 16:56:46 +02:00
Jim Wilson
d42744fe04 linux-user: Add support for strace for statx() syscall
All of the flags need to be conditional as old systems don't have
statx support.  Otherwise it works the same as other stat family
syscalls.  This requires the pending patch to add statx support.

Tested on Ubuntu 16.04 (no host statx) and Ubuntu 19.04 (with host
statx) using a riscv32-linux toolchain.

Signed-off-by: Jim Wilson <jimw@sifive.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1561718618-20218-3-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-07-02 16:56:46 +02:00
Aleksandar Rikalo
efa921845c linux-user: Add support for translation of statx() syscall
Implement support for translation of system call statx().

The implementation is based on "best effort" approach: if host
is capable of executing statx(), host statx() is used. If not,
the implementation includes invoking a more mature system call
fstatat() on the host side to achieve as close as possible
functionality.

Support for statx() in kernel and glibc was, however, introduced
at different points of time (the difference is more than a year):

  - kernel: Linux 4.11 (30 April 2017)
  - glibc: glibc 2.28 (1 Aug 2018)

In this patch, the availability of statx() support is established
via __NR_statx (if it is defined, statx() is considered available).
This coincedes with statx() introduction in kernel.

However, the structure statx definition may not be available in
any header for hosts with glibc older than 2.28 (and it is, by
design, to be defined in one of glibc headers), even though the
full statx() functionality may be supported in kernel. Hence, a
structure "target_statx" is defined in this patch, to remove that
dependency on glibc headers, and to use statx() functionality as
soon as the host kernel is capable of supporting it. Such statx
structure definition is used for both target and host structures
statx (of course, this doesn't mean the endian arrangement is
the same on target and host - the endian conversion is done in
all necessary cases).

Signed-off-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1561718618-20218-2-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-07-02 16:56:46 +02:00
Peter Maydell
5e6ebacc3b remove m68k simulator syscall interface
Fix comments format
 Fix gdbstub
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEEzS913cjjpNwuT1Fz8ww4vT8vvjwFAl0Tm1kSHGxhdXJlbnRA
 dml2aWVyLmV1AAoJEPMMOL0/L748wp4P/isXFUM1OKoFQEv80YDfLEMg8gRM5BQb
 AJqbEylTBpCAmMiU5oBdbZI9+kOLi++x8bb+9u86VjpGgP74o1qBTIlX3Eqi4rho
 a3TSPNP+Tpoovw4wnFUH0JrGIuZuLlEJ/ltdiEaB9xLY90RgO2KuxYCgzrKqoD8/
 ASkLOV5QX0CjE74fz7ikz6HIj4zTSyx8M2BfE9N6Lrf7rrnIVa5FVVeQ/fIS71t2
 XNbQ37K5EbGk4N1u6x9Ct/h6kFA5qQ0R8YBEDSR2335uJZxWvRIZnAZ9Yu0Z2gDn
 EDZ9tjXoGCB98jnlJyeEx8OrAAh5iZ1LVXgpUYgjPvkNzOJ0BMmDz4xVXJAec5iB
 kMMcdWYEdqVV3FYaGa6xk225s6N/SNMO9RmleFfe7mczxXwEV+HfGEsVHroKXOJ4
 aU+lWLbYEvXmJh4ND3VjpZlYwGNwfpRMEQagztzPeOs3+ctZZah2tmhTm72BkcFu
 K07/zwJf1npYmfjro1uZMuGQVPfJW3hQLkEKCgSuxLaBJU00Qkij2cdMLryUbs4A
 3PHs3hFSgw07Rq/s9UeGbT1GywnNEzLAiwdTuTEzP7KSkP7JBiFJ9MDWggCkcBhI
 LYS2Z2dk3CaGbg8pk++kc99NntK1dcMstRp6F91qx7mGaNCIH8JNyBBEDiYhfvP1
 wglV4Z0btnub
 =ivUw
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/vivier/tags/m68k-next-pull-request' into staging

remove m68k simulator syscall interface
Fix comments format
Fix gdbstub

# gpg: Signature made Wed 26 Jun 2019 17:20:41 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier/tags/m68k-next-pull-request:
  linux-user/m68k: remove simulator syscall interface
  m68k comments break patch submission due to being incorrectly formatted
  The m68k gdbstub SR reg request doesnt include Condition-Codes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-07-01 16:59:29 +01:00
Laurent Vivier
c6d0700f57 linux-user/m68k: remove simulator syscall interface
This interface has been introduced in 2005 with the
coldfire implementation (e6e5906b6e ColdFire target.)
and looks like to do what the linux-user interface already
does with the TRAP exception rather than the ILLEGAL
exception.

This interface has not been maintained since that.
The semi-hosting interface is not removed so coldfire kernel
with semi-hosting is always supported.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20190524162049.806-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-06-26 17:14:41 +02:00
Jim Wilson
ab433cccad
RISC-V: Update syscall list for 32-bit support.
32-bit RISC-V uses _llseek instead of lseek as syscall number 62.
Update syscall list from open-embedded build, primarily because
32-bit RISC-V requires statx support.

Tested with cross gcc testsuite runs for rv32 and rv64, with the
pending statx patch also applied.

Signed-off-by: Jim Wilson <jimw@sifive.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-25 22:37:08 -07:00
Laurent Vivier
b50d1e42a4 linux-user: set default PPC64 CPU
The default CPU for pseries has been set to POWER9 by default.
We can use the same default for linux-user

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20190609143521.19374-2-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-06-24 23:10:36 +02:00
Laurent Vivier
24c373ec59 linux-user: update PPC64 HWCAP2 feature list
QEMU_PPC_FEATURE2_VEC_CRYPTO enables the use
of VSX instructions in libcrypto that are accelerated
by the TCG vector instructions now.

QEMU_PPC_FEATURE2_DARN allows to use the new builtin
qemu_guest_getrandom() function.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20190609143521.19374-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-06-24 23:10:07 +02:00
Neng Chen
22bf4ee903 linux-user: Add support for setsockopt() options IPV6_<ADD|DROP>_MEMBERSHIP
Add support for the option IPV6_<ADD|DROP>_MEMBERSHIP of the syscall
setsockopt(). This option controls membership in multicast groups.
Argument is a pointer to a struct ipv6_mreq.

The glibc <netinet/in.h> header defines the ipv6_mreq structure,
which includes the following members:

  struct in6_addr  ipv6mr_multiaddr;
  unsigned int     ipv6mr_interface;

Whereas the kernel in its <linux/in6.h> header defines following
members of the same structure:

  struct in6_addr  ipv6mr_multiaddr;
  int              ipv6mr_ifindex;

POSIX defines ipv6mr_interface [1].

__UAPI_DEF_IVP6_MREQ appears in kernel headers with v3.12:

  cfd280c91253 net: sync some IP headers with glibc

Without __UAPI_DEF_IVP6_MREQ, kernel defines ipv6mr_ifindex, and
this is explained in cfd280c91253:

  "If you include the kernel headers first you get those,
  and if you include the glibc headers first you get those,
  and the following patch arranges a coordination and
  synchronization between the two."

So before 3.12, a program can't include both <netinet/in.h> and
<linux/in6.h>.

In linux-user/syscall.c, we only include <netinet/in.h> (glibc) and
not <linux/in6.h> (kernel headers), so ipv6mr_interface is the one
to use.

[1] http://pubs.opengroup.org/onlinepubs/009695399/basedefs/netinet/in.h.html

Signed-off-by: Neng Chen <nchen@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1560953834-29584-2-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-06-24 23:04:05 +02:00
Yunqiang Su
f31dddd2fc linux-user: Add support for setsockopt() option SOL_ALG
Add support for options SOL_ALG of the syscall setsockopt(). This
option is used in relation to Linux kernel Crypto API, and allows
a user to set additional information for the cipher operation via
syscall setsockopt(). The field "optname" must be one of the
following:

  - ALG_SET_KEY – seting the key
  - ALG_SET_AEAD_AUTHSIZE – set the authentication tag size

SOL_ALG is relatively newer setsockopt() option. Therefore, the
code that handles SOL_ALG is enclosed in "ifdef" so that the build
does not fail for older kernels that do not contain support for
SOL_ALG. "ifdef" also contains check if ALG_SET_KEY and
ALG_SET_AEAD_AUTHSIZE are defined.

Signed-off-by: Yunqiang Su <ysu@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1560953834-29584-3-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-06-24 22:59:14 +02:00
Laurent Vivier
524fa3408e linux-user: emulate msgsnd(), msgrcv() and semtimedop()
When we have updated kernel headers to 5.2-rc1 we have introduced
new syscall numbers that can be not supported by older kernels
and fail with ENOSYS while the guest emulation succeeded before
because the syscalls were emulated with ipc().

This patch fixes the problem by using ipc() if the new syscall
returns ENOSYS.

Fixes: 86e636951d ("linux-user: fix __NR_semtimedop undeclared error")
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20190529084804.25950-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-06-24 22:59:14 +02:00
Alex Bennée
78e24848f6 semihosting: split console_out into string and char versions
This is ostensibly to avoid the weirdness of len looking like it might
come from a guest and sometimes being used. While we are at it fix up
the error checking for the arm-linux-user implementation of the API
which got flagged up by Coverity (CID 1401700).

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-06-12 17:53:22 +01:00
Markus Armbruster
f91005e195 Supply missing header guards
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190604181618.19980-5-armbru@redhat.com>
2019-06-12 13:20:21 +02:00
Markus Armbruster
a8d2532645 Include qemu-common.h exactly where needed
No header includes qemu-common.h after this commit, as prescribed by
qemu-common.h's file comment.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-5-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c
block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c
target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h
target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h
target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h
target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and
net/tap-bsd.c fixed up]
2019-06-12 13:20:20 +02:00
Markus Armbruster
0b8fa32f55 Include qemu/module.h where needed, drop it from qemu-common.h
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-4-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c
hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c;
ui/cocoa.m fixed up]
2019-06-12 13:18:33 +02:00
Markus Armbruster
14a48c1d0d qemu-common: Move tcg_enabled() etc. to sysemu/tcg.h
Other accelerators have their own headers: sysemu/hax.h, sysemu/hvf.h,
sysemu/kvm.h, sysemu/whpx.h.  Only tcg_enabled() & friends sit in
qemu-common.h.  This necessitates inclusion of qemu-common.h into
headers, which is against the rules spelled out in qemu-common.h's
file comment.

Move tcg_enabled() & friends into their own header sysemu/tcg.h, and
adjust #include directives.

Cc: Richard Henderson <rth@twiddle.net>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-2-armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[Rebased with conflicts resolved automatically, except for
accel/tcg/tcg-all.c]
2019-06-11 20:22:09 +02:00
Richard Henderson
92fddfbd17 target/xtensa: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace xtensa_env_get_cpu with env_archcpu.  The combination
CPU(xtensa_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Move cpu_get_tb_cpu_state below the include of "exec/cpu-all.h"
so that the definition of env_cpu is available.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
06887771bd target/tilegx: Use env_cpu
Cleanup in the boilerplate that each target must define.
Replace tilegx_env_get_cpu with env_archcpu.  The combination
CPU(tilegx_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
5a59fbce91 target/sparc: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace sparc_env_get_cpu with env_archcpu.  The combination
CPU(sparc_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
dad1c8ecc7 target/sh4: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace sh_env_get_cpu with env_archcpu.  The combination
CPU(sh_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
dc79e92869 target/s390x: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace s390_env_get_cpu with env_archcpu.  The combination
CPU(s390_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
3109cd98a6 target/riscv: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace riscv_env_get_cpu with env_archcpu.  The combination
CPU(riscv_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
db70b31144 target/ppc: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace ppc_env_get_cpu with env_archcpu.  The combination
CPU(ppc_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
5ee2b02e92 target/openrisc: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace openrisc_env_get_cpu with env_archcpu.  The combination
CPU(openrisc_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
5a7330b35c target/mips: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace mips_env_get_cpu with env_archcpu.  The combination
CPU(mips_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
f5c7e93ad9 target/microblaze: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace mb_env_get_cpu with env_archcpu.  The combination
CPU(mb_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Move cpu_mmu_index below the include of "exec/cpu-all.h",
so that the definition of env_archcpu is available.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
a8d92fd869 target/m68k: Use env_cpu
Cleanup in the boilerplate that each target must define.
The combination CPU(m68k_env_get_cpu) should have used
ENV_GET_CPU to begin; use env_cpu now.

Acked-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
6aa9e42f27 target/i386: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace x86_env_get_cpu with env_archcpu.  The combination
CPU(x86_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:42 -07:00
Richard Henderson
25f327081b target/hppa: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace hppa_env_get_cpu with env_archcpu.  The combination
CPU(hppa_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:34 -07:00
Richard Henderson
dbefca236a target/cris: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace cris_env_get_cpu with env_archcpu.  The combination
CPU(cris_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:34 -07:00
Richard Henderson
2fc0cc0e1e target/arm: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace arm_env_get_cpu with env_archcpu.  The combination
CPU(arm_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:34 -07:00
Richard Henderson
1c7ad26000 target/alpha: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace alpha_env_get_cpu with env_archcpu.  The combination
CPU(alpha_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:34 -07:00
Richard Henderson
29a0af618d cpu: Replace ENV_GET_CPU with env_cpu
Now that we have both ArchCPU and CPUArchState, we can define
this generically instead of via macro in each target's cpu.h.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-10 07:03:34 -07:00
David Hildenbrand
6d88baf186 linux-user: elf: ELF_HWCAP for s390x
Let's add all HWCAPs that we can support under TCG right now, when the
respective CPU facilities are enabled.

Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Laurent Vivier <laurent@vivier.eu>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Laurent Vivier <laurent@vivier.eu>
Cc: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-06-07 14:53:26 +02:00
David Hildenbrand
4f83d7d212 s390x: Use uint64_t for vector registers
CPU_DoubleU is primarily used to reinterpret between integer and floats.
We don't really need this functionality. So let's just keep it simple
and use an uint64_t.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
2019-06-07 14:53:25 +02:00
Peter Maydell
8c1ecb5904 Various testing updates
- semihosting re-factor (used in system tests)
   - aarch64 and alpha system tests
   - editorconfig tweak for .S
   - some docker image updates
   - iotests clean-up (without make check inclusion)
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEZoWumedRZ7yvyN81+9DbCVqeKkQFAlztYToACgkQ+9DbCVqe
 KkQU9wf/Uv5qBgDn9MwcCt8tzHTX/i21QHwFLBbCmFoUwZjSridZ2KV6Ma3ig4mF
 xY+8Cr5oZT186V+aD39K6KCZKqZRulIpRVNkOKXEfAAklUoAyQs95Wa8F8LtO1eG
 vOtOYEdkXQQiAnlnQ+eaGiZQ2mpbCbREa10JrBhxp6iXh0PYcvtD7iAlOldqIvd2
 hDRwOgTtYoiiKh6UdediAgQsRvv6oNPHFUOjWgrGxfhPWKbjCVKl7VS4furg9zux
 j/S0E0xYKhj+JNq3arjiMUMl19TauCBQLrbQpphd1jOl1s7bELRjAuaKM60TVIbW
 Hd2/PYbGnkpyUcJQh0Pr1cb4RMcznw==
 =lvtu
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-next-280519-2' into staging

Various testing updates

  - semihosting re-factor (used in system tests)
  - aarch64 and alpha system tests
  - editorconfig tweak for .S
  - some docker image updates
  - iotests clean-up (without make check inclusion)

# gpg: Signature made Tue 28 May 2019 17:26:34 BST
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-testing-next-280519-2: (27 commits)
  tests/qemu-iotests: re-format output to for make check-block
  tests/qemu-iotests/group: Re-use the "auto" group for tests that can always run
  Makefile.target: support per-target coverage reports
  Makefile: include per-target build directories in coverage report
  Makefile: fix coverage-report reference to BUILD_DIR
  .travis.yml: enable aarch64-softmmu and alpha-softmmu tcg tests
  tests/tcg/alpha: add system boot.S
  tests/tcg/multiarch: expand system memory test to cover more
  tests/tcg/minilib: support %c format char
  tests/tcg/multiarch: move the system memory test
  tests/tcg/aarch64: add system boot.S
  editorconfig: add settings for .s/.S files
  tests/tcg/multiarch: add hello world system test
  tests/tcg/multiarch: add support for multiarch system tests
  tests/docker: Test more components on the Fedora default image
  tests/docker: add ubuntu 18.04
  MAINTAINERS: update for semihostings new home
  target/mips: convert UHI_plog to use common semihosting code
  target/mips: only build mips-semi for softmmu
  target/arm: correct return values for WRITE/READ in arm-semi
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-05-28 17:38:32 +01:00
Peter Maydell
4a1d38c440 MIPS queue for May 19th, 2019 - v3
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJc6rmrAAoJENSXKoln91pleiIH/iII48dveAe846j+leRJzvq0
 xwykZ+uc1gM8vwHjJmQL2iz8BSx9irYg68jNgZNw+0/7pOqKVkyDt7T9CMpNIgI/
 xsbaX3ta90Rhw6Cnw9h99SsWJAg2Oq4Phv7yCIgDMoNmph/caZyd/95ThmmQ2MXr
 BDOehxODcDyJAO3KIMODccuD6R0ofM2JKXUk2S5s7v1FjYm5fxfzOcx8P4P4lGP3
 AB/k+iVMaEaZJWDHhPXte/5tF9aW8s39CUoe0BE/Cqje3ehLEY/6XxMamXiaWf/G
 2taLvJ6lZ1T5nRmcTCBFfO4Sk3BEBeGlqF72nIlzeCJCe9SvISfwEhsHNkfsqiE=
 =hSSg
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/amarkovic/tags/mips-queue-may-19-2019-v3' into staging

MIPS queue for May 19th, 2019 - v3

# gpg: Signature made Sun 26 May 2019 17:07:07 BST
# gpg:                using RSA key D4972A8967F75A65
# gpg: Good signature from "Aleksandar Markovic <amarkovic@wavecomp.com>" [unknown]
# 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: 8526 FBF1 5DA3 811F 4A01  DD75 D497 2A89 67F7 5A65

* remotes/amarkovic/tags/mips-queue-may-19-2019-v3:
  BootLinuxSshTest: Test some userspace commands on Malta
  target/mips: realign comments to fix checkpatch warnings
  target/mips: add or remove space to fix checkpatch errors
  linux-user: fix __NR_semtimedop undeclared error
  mips: Decide to map PAGE_EXEC in map_address
  target/mips: Refactor and fix INSERT.<B|H|W|D> instructions
  target/mips: Refactor and fix COPY_U.<B|H|W> instructions
  target/mips: Refactor and fix COPY_S.<B|H|W|D> instructions
  target/mips: Fix MSA instructions ST.<B|H|W|D> on big endian host
  target/mips: Fix MSA instructions LD.<B|H|W|D> on big endian host
  target/mips: Make the results of MOD_<U|S>.<B|H|W|D> the same as on hardware
  target/mips: Make the results of DIV_<U|S>.<B|H|W|D> the same as on hardware

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-05-28 12:25:20 +01:00
Alex Bennée
0dc077212f target/arm: use the common interface for WRITE0/WRITEC in arm-semi
Now we have a common semihosting console interface use that for our
string output. However ARM is currently unique in also supporting
semihosting for linux-user so we need to replicate the API in
linux-user. If other architectures gain this support we can move the
file later.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-28 10:28:50 +01:00
Laurent Vivier
86e636951d linux-user: fix __NR_semtimedop undeclared error
In current code, __NR_msgrcv and__NR_semtimedop are supposed to be
defined if __NR_msgsnd is defined.

But linux headers 5.2-rc1 for MIPS define __NR_msgsnd without defining
__NR_semtimedop and it breaks the QEMU build.

__NR_semtimedop is defined in asm-mips/unistd_n64.h and asm-mips/unistd_n32.h
but not in asm-mips/unistd_o32.h.

Commit d9cb433615 ("linux headers: update against Linux 5.2-rc1") has
updated asm-mips/unistd_o32.h and added __NR_msgsnd but not __NR_semtimedop.
It introduces __NR_semtimedop_time64 instead.

This patch fixes the problem by checking for each __NR_XXX symbol
before defining the corresponding syscall.

Fixes: d9cb433615 ("linux headers: update against Linux 5.2-rc1")
Reported-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190523175413.14448-1-laurent@vivier.eu>
2019-05-26 17:44:33 +02:00
Alistair Francis
77c62400e5
linux-user/riscv: Add the CPU type as a comment
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-05-24 12:09:23 -07:00
Peter Maydell
a7b21f6762 Add /proc/hardware and /proc/cpuinfo,
update SIOCXXX ioctls,
 fix shmat emulation,
 add nanoseconds in stat,
 init field fp_abi on mips
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJc59R0AAoJEPMMOL0/L748px4QAJBgq468iQPge+6L2uwj4bX1
 xfclzs/HwNSZaxMj98HGHw+mMdMCZhcRMjZKBcF3bqMQ8vJEHEcHpZBVqGTxoQG9
 yDmMZzOSMPGOMjfYasKYaOLNXFexFigVI1tp1EHjuS/PEpaR/O3heFtp4ZqwBA/Y
 xIXbMVVod0my0uIBbs947CjPHFdFR7UrOvqQIUv0ptCukUsA1NNco4LxvYSur3Co
 YJgxXct9HIwueubwZKYVCxUI4SfDKuLD2aqkJGolhBSxiHMktzwR3kLdcosU0tnr
 b9ekBT6UdSVJZirLTHQOOAnU4Ph+bDrLZP3K+WaUdMndLIxWfgV6yaP0Fc5Sdmnv
 /NDctRthodYqqYXEUtSZrOAkQzVJsUoh6WHg8DKkNS22Q6Hzp6UkiAiKuKvhI/Hs
 V+5T3Wlkek8M6Zm3Hic7dCz9bATuaMrAb4j/2MI1VKbE1a2OCWruk+v7rAeMhi8d
 DOS94LJMmLHPUYviXoPyveEA60qm8jRIQAN2Yxuw3CLklDNmxY2UHY5bsfhKfkp5
 xTCyJalqUkYIMoj5j6Rtxjfo4SCg4lGyiu5/wKgD5Ry3YLr5NkTLsasutsqbvOt+
 D2JIJWny2JvCXMCkJLqffmlm96xglaPfsonrGlhufonuqw2nYyebddQLFo4rIz5b
 AYxBlo1cb5B77zpGFXC2
 =IEm6
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-4.1-pull-request' into staging

Add /proc/hardware and /proc/cpuinfo,
update SIOCXXX ioctls,
fix shmat emulation,
add nanoseconds in stat,
init field fp_abi on mips

# gpg: Signature made Fri 24 May 2019 12:24:36 BST
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-4.1-pull-request:
  linux-user: Pass through nanosecond timestamp components for stat syscalls
  linux-user: Align mmap_find_vma to host page size
  linux-user: Fix shmat emulation by honoring host SHMLBA
  linux-user: Sanitize interp_info and, for mips only, init field fp_abi
  linux-user: Add support for SIOC<G|S>IFPFLAGS ioctls for all targets
  linux-user: Add support for SIOCSPGRP ioctl for all targets
  linux-user: Fix support for SIOCATMARK and SIOCGPGRP ioctls for xtensa
  linux-user: add pseudo /proc/hardware for m68k
  linux-user: add pseudo /proc/cpuinfo for sparc

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-05-24 12:47:49 +01:00
Chen-Yu Tsai
5f992db605 linux-user: Pass through nanosecond timestamp components for stat syscalls
Since Linux 2.6 the stat syscalls have mostly supported nanosecond
components for each of the file-related timestamps.

QEMU user mode emulation currently does not pass through the nanosecond
portion of the timestamp, even when the host system fills in the value.
This results in a mismatch when run on subsecond resolution filesystems
such as ext4 or XFS.

An example of this leading to inconsistency is cross-debootstraping a
full desktop root filesystem of Debian Buster. Recent versions of
fontconfig store the full timestamp (instead of just the second portion)
of the directory in its per-directory cache file, and checks this against
the directory to see if the cache is up-to-date. With QEMU user mode
emulation, the timestamp stored is incorrect, and upon booting the rootfs
natively, fontconfig discovers the mismatch, and proceeds to rebuild the
cache on the comparatively slow machine (low-power ARM vs x86). This
stalls the first attempt to open whatever application that incorporates
fontconfig.

This patch renames the "unused" padding trailing each timestamp element
to its nanosecond counterpart name if such an element exists in the
kernel sources for the given platform. Not all do. Then have the syscall
wrapper fill in the nanosecond portion if the host supports it, as
specified by the _POSIX_C_SOURCE and _XOPEN_SOURCE feature macros.

Recent versions of glibc only use stat64 and newfstatat syscalls on
32-bit and 64-bit platforms respectively. The changes in this patch
were tested by directly calling the stat, stat64 and newfstatat syscalls
directly, in addition to the glibc wrapper, on arm and aarch64 little
endian targets.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Message-Id: <20190522162147.26303-1-wens@kernel.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-05-24 13:16:21 +02:00
Richard Henderson
443b7505c6 linux-user: Align mmap_find_vma to host page size
This can avoid stack allocation failures for i386 guest
on ppc64 (64k page) host.

Suggested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190519201953.20161-14-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-05-24 13:16:21 +02:00