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  1. Sep 01, 2020
  3. Aug 31, 2020
  5. Aug 28, 2020
    • Peter Maydell's avatar
      Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-5.2-pull-request' into staging · 39335fab
      Peter Maydell authored 
      
add utimensat_time64, semtimedop_time64, rt_sigtimedwait_time64,
    sched_rr_get_interval_time64, clock_nanosleep_time64, clock_adjtime64,
    mq_timedsend_time64, mq_timedreceive_time64
fix semop, semtimedop, clock_nanosleep, mq_timedsend, target_to_host_timespec64
fix tembits.h
add more strace function
Add upport DRM_IOCTL_I915_GETPARAM
detect mismatched ELF ABI in qemu-mips[n32][el]

# gpg: Signature made Fri 28 Aug 2020 14:37:33 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/vivier2/tags/linux-user-for-5.2-pull-request:
  linux-user: Add support for utimensat_time64() and semtimedop_time64()
  linux-user: Add support for 'rt_sigtimedwait_time64()' and 'sched_rr_get_interval_time64()'
  linux-user: Add support for 'clock_nanosleep_time64()' and 'clock_adjtime64()'
  linux-user: Add support for 'mq_timedsend_time64()' and 'mq_timedreceive_time64()'
  linux-user: fix target_to_host_timespec64()
  linux-user: Fix 'mq_timedsend()' and 'mq_timedreceive()'
  linux-user: detect mismatched ELF ABI in qemu-mips[n32][el]
  linux-user: Add strace support for printing arguments for ioctls used for terminals and serial lines
  linux-user: Add missing termbits types and values definitions
  linux-user: Add generic 'termbits.h' for some archs
  linux-user: Add strace support for printing arguments of some clock and time functions
  linux-user: Add an api to print enumareted argument values with strace
  linux-user: Add strace support for printing arguments of syscalls used to lock and unlock memory
  linux-user: Add strace support for printing arguments of truncate()/ftruncate() and getsid()
  linux-user: Make cpu_env accessible in strace.c
  linux-user: syscall: ioctls: support DRM_IOCTL_I915_GETPARAM
  linux-user: Fix 'clock_nanosleep()' implementation
  linux-user: Fix 'semop()' and 'semtimedop()' implementation

Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
      39335fab
    • Peter Maydell's avatar
      Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20200828a' into staging · a4e236b7
      Peter Maydell authored 
      
Migration and virtiofsd pull 2020-08-28

Migration:
   vsock support for migration
   minor fixes

virtiofsd:
   Disable remote posix locks by default - because we
     never supported blocking variants and this breaks things
   Some prep work for un/less priviliged modes

Signed-off-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>

# gpg: Signature made Fri 28 Aug 2020 13:43:18 BST
# gpg:                using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert/tags/pull-migration-20200828a:
  virtiofsd: probe unshare(CLONE_FS) and print an error
  virtiofsd: drop CAP_DAC_READ_SEARCH
  virtiofsd: Remove "norace" from cmdline help and docs
  virtiofsd: Disable remote posix locks by default
  migration: tls: fix memory leak in migration_tls_get_creds
  migration: improve error reporting of block driver state name
  migration: add vsock as data channel support
  migration: unify the framework of socket-type channel

Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
      a4e236b7
    • Peter Maydell's avatar
      Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200828' into staging · ea1bb830
      Peter Maydell authored 
      
target-arm queue:
 * target/arm: Cleanup and refactoring preparatory to SVE2
 * armsse: Define ARMSSEClass correctly
 * hw/misc/unimp: Improve information provided in log messages
 * hw/qdev-clock: Avoid calling qdev_connect_clock_in after DeviceRealize
 * hw/arm/xilinx_zynq: Call qdev_connect_clock_in() before DeviceRealize
 * hw/net/allwinner-sun8i-emac: Use AddressSpace for DMA transfers
 * hw/sd/allwinner-sdhost: Use AddressSpace for DMA transfers
 * target/arm: Fill in the WnR syndrome bit in mte_check_fail
 * target/arm: Clarify HCR_EL2 ARMCPRegInfo type
 * hw/arm/musicpal: Use AddressSpace for DMA transfers
 * hw/clock: Minor cleanups
 * hw/arm/sbsa-ref: fix typo breaking PCIe IRQs

# gpg: Signature made Fri 28 Aug 2020 10:23:02 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20200828: (35 commits)
  target/arm: Convert sq{, r}dmulh to gvec for aa64 advsimd
  target/arm: Convert integer multiply-add (indexed) to gvec for aa64 advsimd
  target/arm: Convert integer multiply (indexed) to gvec for aa64 advsimd
  target/arm: Generalize inl_qrdmlah_* helper functions
  target/arm: Tidy SVE tszimm shift formats
  target/arm: Split out gen_gvec_ool_zz
  target/arm: Split out gen_gvec_ool_zzz
  target/arm: Split out gen_gvec_ool_zzp
  target/arm: Merge helper_sve_clr_* and helper_sve_movz_*
  target/arm: Split out gen_gvec_ool_zzzp
  target/arm: Use tcg_gen_gvec_bitsel for trans_SEL_pppp
  target/arm: Clean up 4-operand predicate expansion
  target/arm: Merge do_vector2_p into do_mov_p
  target/arm: Rearrange {sve,fp}_check_access assert
  target/arm: Split out gen_gvec_fn_zzz, do_zzz_fn
  target/arm: Split out gen_gvec_fn_zz
  qemu/int128: Add int128_lshift
  armsse: Define ARMSSEClass correctly
  hw/misc/unimp: Display the offset with width of the region size
  hw/misc/unimp: Display the value with width of the access size
  ...

Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
      ea1bb830
    • Filip Bozuta's avatar
      linux-user: Add support for utimensat_time64() and semtimedop_time64() · cac46eb0
      Filip Bozuta authored 
      This patch introduces functionality for following time64 syscalls:

*utimensat_time64()

    int utimensat(int dirfd, const char *pathname,
                  const struct timespec times[2], int flags);
    -- change file timestamps with nanosecond precision --
    man page: https://man7.org/linux/man-pages/man2/utimensat.2.html

*semtimedop_time64()

    int semtimedop(int semid, struct sembuf *sops, size_t nsops,
                   const struct timespec *timeout);
    -- System V semaphore operations --
    man page: https://www.man7.org/linux/man-pages/man2/semtimedop.2.html



Implementation notes:

   Syscall 'utimensat_time64()' is implemented in similar way as its
   regular variants only difference being that time64 converting function
   is used to convert values of 'struct timespec' between host and target
   ('target_to_host_timespec64()').

   For syscall 'semtimedop_time64()' and additional argument is added
   in function 'do_semtimedop()' through which the aproppriate 'struct timespec'
   converting function is called (false for regular target_to_host_timespec()
   and true for target_to_host_timespec64()). For 'do_ipc()' a
   check was added as that additional argument: 'TARGET_ABI_BITS == 64'.

Signed-off-by: default avatarFilip Bozuta <Filip.Bozuta@syrmia.com>
Reviewed-by: default avatarLaurent Vivier <laurent@vivier.eu>
Message-Id: <20200824223050.92032-3-Filip.Bozuta@syrmia.com>
Signed-off-by: default avatarLaurent Vivier <laurent@vivier.eu>
      cac46eb0
    • Filip Bozuta's avatar
      linux-user: Add support for 'rt_sigtimedwait_time64()' and 'sched_rr_get_interval_time64()' · ddcbde15
      Filip Bozuta authored 
      This patch implements functionality for following time64 syscalls:

*rt_sigtimedwait_time64()

    This is a year 2038 safe variant of syscall:

    int rt_sigtimedwait(const sigset_t *set, siginfo_t *info,
                        const struct timespec *timeout, size_t sigsetsize)
    --synchronously wait for queued signals--
    man page: https://man7.org/linux/man-pages/man2/rt_sigtimedwait.2.html

*sched_rr_get_interval_time64()

    This is a year 2038 safe variant of syscall:

    int sched_rr_get_interval(pid_t pid, struct timespec *tp)
    --get  the  SCHED_RR  interval  for the named process--
    man page: https://man7.org/linux/man-pages/man2/sched_rr_get_interval.2.html



Implementation notes:

    These syscalls were implemented in similar ways like
    'rt_sigtimedwait()' and 'sched_rr_get_interval()' except
    that functions 'target_to_host_timespec64()' and
    'host_to_target_timespec64()' were used to convert values
    of 'struct timespec' between host and target.

Signed-off-by: default avatarFilip Bozuta <Filip.Bozuta@syrmia.com>
Reviewed-by: default avatarLaurent Vivier <laurent@vivier.eu>
Message-Id: <20200824192116.65562-3-Filip.Bozuta@syrmia.com>
[lv: add missing defined(TARGET_NR_rt_sigtimedwait_time64)]
Signed-off-by: default avatarLaurent Vivier <laurent@vivier.eu>
      ddcbde15
    • Filip Bozuta's avatar
      linux-user: Add support for 'clock_nanosleep_time64()' and 'clock_adjtime64()' · 6ac03b2c
      Filip Bozuta authored 
      This patch implements functionality for following time64 syscall:

*clock_nanosleep_time64()

    This is a year 2038 safe vairant of syscall:
    int clock_nanosleep(clockid_t clockid, int flags,
                        const struct timespec *request,
                        struct timespec *remain)
    --high-resolution sleep with specifiable clock--
    man page: https://man7.org/linux/man-pages/man2/clock_nanosleep.2.html

*clock_adjtime64()

    This is a year 2038 safe variant of syscall:
    int clock_adjtime(clockid_t clk_id, struct timex *buf)
    --tune kernel clock--
    man page: https://man7.org/linux/man-pages/man2/clock_adjtime.2.html



Implementation notes:

    Syscall 'clock_nanosleep_time64()' was implemented similarly
    to syscall 'clock_nanosleep()' except that 'host_to_target_timespec64()'
    and 'target_to_host_timespec64()' were used instead of the regular
    'host_to_target_timespec()' and 'target_to_host_timespec()'.

    For 'clock_adjtime64()' a 64-bit target kernel version of 'struct timex'
    was defined in 'syscall_defs.h': 'struct target__kernel_timex'.
    This type was used to convert the values of 64-bit timex type between
    host and target. For this purpose a 64-bit timex converting functions
    'target_to_host_timex64()' and 'host_to_target_timex64()'. An existing
    function 'copy_to_user_timeval64()' was used to convert the field
    'time' which if of type 'struct timeval' from host to target.
    Function 'copy_from_user_timveal64()' was added in this patch and
    used to convert the 'time' field from target to host.

Signed-off-by: default avatarFilip Bozuta <Filip.Bozuta@syrmia.com>
Reviewed-by: default avatarLaurent Vivier <laurent@vivier.eu>
Message-Id: <20200824192116.65562-2-Filip.Bozuta@syrmia.com>
[lv: add missing ifdef's]
Signed-off-by: default avatarLaurent Vivier <laurent@vivier.eu>
      6ac03b2c
    • Stefan Hajnoczi's avatar
      virtiofsd: probe unshare(CLONE_FS) and print an error · fd9279ec
      Stefan Hajnoczi authored 
      An assertion failure is raised during request processing if
unshare(CLONE_FS) fails. Implement a probe at startup so the problem can
be detected right away.

Unfortunately Docker/Moby does not include unshare in the seccomp.json
list unless CAP_SYS_ADMIN is given. Other seccomp.json lists always
include unshare (e.g. podman is unaffected):
https://raw.githubusercontent.com/seccomp/containers-golang/master/seccomp.json



Use "docker run --security-opt seccomp=path/to/seccomp.json ..." if the
default seccomp.json is missing unshare.

Cc: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20200727190223.422280-4-stefanha@redhat.com>
Reviewed-by: default avatarMisono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
      fd9279ec
    • Stefan Hajnoczi's avatar
      virtiofsd: drop CAP_DAC_READ_SEARCH · 1c7cb1f5
      Stefan Hajnoczi authored 
      
virtiofsd does not need CAP_DAC_READ_SEARCH because it already has
the more powerful CAP_DAC_OVERRIDE. Drop it from the list of
capabilities.

This is important because container runtimes may not include
CAP_DAC_READ_SEARCH by default. This patch allows virtiofsd to reduce
its capabilities when running inside a Docker container.

Note that CAP_DAC_READ_SEARCH may be necessary again in the future if
virtiofsd starts using open_by_handle_at(2).

Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20200727190223.422280-2-stefanha@redhat.com>
Signed-off-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
      1c7cb1f5
    • Sergio Lopez's avatar
      virtiofsd: Remove "norace" from cmdline help and docs · e9a78564
      Sergio Lopez authored 
      
Commit 93bb3d8d ("virtiofsd: remove symlink fallbacks") removed
the implementation of the "norace" option, so remove it from the
cmdline help and the documentation too.

Signed-off-by: default avatarSergio Lopez <slp@redhat.com>
Reviewed-by: default avatarPhilippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200717121110.50580-1-slp@redhat.com>
Signed-off-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
      e9a78564
    • Vivek Goyal's avatar
      virtiofsd: Disable remote posix locks by default · 88fc1079
      Vivek Goyal authored 
      
Right now we enable remote posix locks by default. That means when guest
does a posix lock it sends request to server (virtiofsd). But currently
we only support non-blocking posix lock and return -EOPNOTSUPP for
blocking version.

This means that existing applications which are doing blocking posix
locks get -EOPNOTSUPP and fail. To avoid this, people have been
running virtiosd with option "-o no_posix_lock". For new users it
is still a surprise and trial and error takes them to this option.

Given posix lock implementation is not complete in virtiofsd, disable
it by default. This means that posix locks will work with-in applications
in a guest but not across guests. Anyway we don't support sharing
filesystem among different guests yet in virtiofs so this should
not lead to any kind of surprise or regression and will make life
little easier for virtiofs users.

Reported-by: default avatarAa Aa <jimbothom@yandex.com>
Suggested-by: default avatarMiklos Szeredi <mszeredi@redhat.com>
Signed-off-by: default avatarVivek Goyal <vgoyal@redhat.com>
Reviewed-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: default avatarMisono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
      88fc1079
    • Zhenyu Ye's avatar
      migration: tls: fix memory leak in migration_tls_get_creds · a9e80a5f
      Zhenyu Ye authored 
      
Currently migration_tls_get_creds() adds the reference of creds
but there was no place to unref it.  So the OBJECT(creds) will
never be freed and result in memory leak.

The leak stack:
Direct leak of 104 byte(s) in 1 object(s) allocated from:
    #0 0xffffa88bd20b in __interceptor_malloc (/usr/lib64/libasan.so.4+0xd320b)
    #1 0xffffa7f0cb1b in g_malloc (/usr/lib64/libglib-2.0.so.0+0x58b1b)
    #2 0x14b58cb in object_new_with_type qom/object.c:634
    #3 0x14b597b in object_new qom/object.c:645
    #4 0x14c0e4f in user_creatable_add_type qom/object_interfaces.c:59
    #5 0x141c78b in qmp_object_add qom/qom-qmp-cmds.c:312
    #6 0x140e513 in qmp_marshal_object_add qapi/qapi-commands-qom.c:279
    #7 0x176ba97 in do_qmp_dispatch qapi/qmp-dispatch.c:165
    #8 0x176bee7 in qmp_dispatch qapi/qmp-dispatch.c:208
    #9 0x136e337 in monitor_qmp_dispatch monitor/qmp.c:150
    #10 0x136eae3 in monitor_qmp_bh_dispatcher monitor/qmp.c:239
    #11 0x1852e93 in aio_bh_call util/async.c:89
    #12 0x18531b7 in aio_bh_poll util/async.c:117
    #13 0x18616bf in aio_dispatch util/aio-posix.c:459
    #14 0x1853f37 in aio_ctx_dispatch util/async.c:268
    #15 0xffffa7f06a7b in g_main_context_dispatch (/usr/lib64/libglib-2.0.so.0+0x52a7b)

Since we're fine to use the borrowed reference when using the creds,
so just remove the object_ref() in migration_tls_get_creds().

Signed-off-by: default avatarZhenyu Ye <yezhenyu2@huawei.com>
Message-Id: <20200722033228.71-1-yezhenyu2@huawei.com>
Reviewed-by: default avatarDaniel P. Berrangé <berrange@redhat.com>
Signed-off-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
      a9e80a5f
    • Daniel P. Berrangé's avatar
      migration: improve error reporting of block driver state name · aa8a926d
      Daniel P. Berrangé authored 
      
With blockdev, a BlockDriverState may not have a device name,
so using a node name is required as an alternative.

Reviewed-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: default avatarDaniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200827111606.1408275-2-berrange@redhat.com>
Signed-off-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
      aa8a926d
    • Longpeng (Mike)'s avatar
      migration: add vsock as data channel support · 9ba3b2ba
      Longpeng (Mike) authored 
      
The vsock channel is more widely use in some new features, for example,
the Nitro/Enclave. It can also be used as the migration channel.

Signed-off-by: default avatarLongpeng(Mike) <longpeng2@huawei.com>
Message-Id: <20200806074030.174-3-longpeng2@huawei.com>
Reviewed-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
      9ba3b2ba
    • Longpeng (Mike)'s avatar
      migration: unify the framework of socket-type channel · d658f65c
      Longpeng (Mike) authored 
      
Currently, the only difference of tcp channel and unix channel in
migration/socket.c is the way to build SocketAddress, but socket_parse()
can handle these two types, so use it to instead of tcp_build_address()
and unix_build_address().

The socket-type channel can be further unified based on the up, this
would be helpful for us to add other socket-type channels.

Signed-off-by: default avatarLongpeng(Mike) <longpeng2@huawei.com>
Message-Id: <20200806074030.174-2-longpeng2@huawei.com>
Reviewed-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
      d658f65c
    • Peter Maydell's avatar
      Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging · 3e39dac0
      Peter Maydell authored 
      
Machine queue + QOM fixes and cleanups

Bug fix:
* numa: hmat: fix cache size check (Igor Mammedov)

QOM fixes and cleanups:
* Move QOM macros and typedefs to header files
* Use TYPE_* constants on TypeInfo structs
* Rename QOM type checking macros for consistency
* Rename enum values and typedefs that conflict with QOM
  type checking amcros
* Fix typos on QOM type checking macros
* Delete unused QOM type checking macros that use
  non-existing typedefs
* hvf: Add missing include
* xen-legacy-backend: Add missing typedef XenLegacyDevice

# gpg: Signature made Thu 27 Aug 2020 20:20:05 BST
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request: (53 commits)
  dc390: Use TYPE_DC390_DEVICE constant
  ppce500: Use TYPE_PPC_E500_PCI_BRIDGE constant
  tosa: Use TYPE_TOSA_MISC_GPIO constant
  xlnx-zcu102: Use TYPE_ZCU102_MACHINE constant
  sclpconsole: Use TYPE_* constants
  amd_iommu: Use TYPE_AMD_IOMMU_PCI constant
  nios2_iic: Use TYPE_ALTERA_IIC constant
  etsec: Use TYPE_ETSEC_COMMON constant
  migration: Rename class type checking macros
  swim: Rename struct SWIM to Swim
  s390-virtio-ccw: Rename S390_MACHINE_CLASS macro
  nubus: Rename class type checking macros
  vfio/pci: Move QOM macros to header
  kvm: Move QOM macros to kvm.h
  mptsas: Move QOM macros to header
  pxa2xx: Move QOM macros to header
  rocker: Move QOM macros to header
  auxbus: Move QOM macros to header
  piix: Move QOM macros to header
  virtio-serial-bus: Move QOM macros to header
  ...

Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
      3e39dac0
    • Richard Henderson's avatar
      target/arm: Convert sq{, r}dmulh to gvec for aa64 advsimd · ed78849d
      Richard Henderson authored 
      
Signed-off-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Message-id: 20200815013145.539409-21-richard.henderson@linaro.org
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
      ed78849d
    • Richard Henderson's avatar
      target/arm: Convert integer multiply-add (indexed) to gvec for aa64 advsimd · 3607440c
      Richard Henderson authored 
      
Signed-off-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Message-id: 20200815013145.539409-20-richard.henderson@linaro.org
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
      3607440c