Commit Graph

67058 Commits

Author SHA1 Message Date
Marc-André Lureau 9032941640 slirp: replace QEMU_PACKED with SLIRP_PACKED
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-02-07 15:49:08 +02:00
Marc-André Lureau 7fce71723b slirp: replace trace functions with DEBUG calls
Remove a dependency on QEMU. Use the existing logging facilities.
Set SLIRP_DEBUG=tftp to get tftp log.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-02-07 15:49:08 +02:00
Marc-André Lureau 07abf6d43a slirp: add callbacks for timer
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-02-07 15:49:08 +02:00
Marc-André Lureau 8e207c327c net/slirp: fix leaks on forwarding rule registration error
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-02-07 15:49:08 +02:00
Marc-André Lureau 8d45a3b946 net/slirp: free forwarding rules on cleanup
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-02-07 15:49:08 +02:00
Marc-André Lureau 3624730a32 net/slirp: simplify checking for cmd: prefix
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-02-07 15:49:08 +02:00
Marc-André Lureau 44b4ff2488 slirp: generalize guestfwd with a callback based approach
Instead of calling into QEMU chardev directly, and mixing it with
slirp_add_exec() handling, add a new function slirp_add_guestfwd()
which takes a write callback.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-02-07 15:49:08 +02:00
Peter Maydell aaa0c642b1 slirp: Don't mark struct ipq or struct ipasfrag as packed
There is no reason to mark the struct ipq and struct ipasfrag as
packed: they are naturally aligned anyway, and are not representing
any on-the-wire packet format.  Indeed they vary in size depending on
the size of pointers on the host system, because the 'struct qlink'
members include 'void *' fields.

Dropping the 'packed' annotation fixes clang -Waddress-of-packed-member
warnings and probably lets the compiler generate better code too.

The only thing we do care about in the layout of the struct is
that the frag_link matches up with the ipf_link of the struct
ipasfrag, as documented in the comment on that struct; assert
at build time that this is the case.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-02-07 15:49:08 +02:00
Peter Maydell c74e3ae9c8 slirp: Avoid marking naturally packed structs as QEMU_PACKED
Various ipv6 structs in the slirp headers are marked QEMU_PACKED,
but they are actually naturally aligned and will have no padding
in them. Instead of marking them with the 'packed' attribute,
assert at compile time that they are the size we expect. This
allows us to take the address of fields within the structs
without risking undefined behaviour, and suppresses clang
-Waddress-of-packed-member warnings.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-02-07 15:49:08 +02:00
Samuel Thibault 59fa06ac74 slirp: Avoid unaligned 16bit memory access
pkt parameter may be unaligned, so we must access it byte-wise.

This fixes sparc64 host SIGBUS during pxe boot.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2019-02-07 15:49:08 +02:00
Laurent Vivier 0f5faca782 linux-user: add new netlink types
Add QEMU_IFLA_MIN_MTU, QEMU_IFLA_MAX_MTU (from linux v4.19)
    QEMU_IFLA_BRPORT_ISOLATED (from linux v4.18) and
    QEMU_IFLA_BRPORT_BACKUP_PORT (from linux v4.19).

These new types fix this error flow with sudo:
...
Unknown host QEMU_IFLA type: 50
Unknown host QEMU_IFLA type: 51
Unknown QEMU_IFLA_BRPORT type 33
...

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20190206193211.6683-1-laurent@vivier.eu>
2019-02-07 14:11:19 +01:00
Peter Maydell 9d0bd0cdd0 linux-user: Check sscanf return value in open_net_route()
Coverity warns (CID 1390634) that open_net_route() is not
checking the return value from sscanf(), which means that
it might then use values that aren't initialized.

Errors here should in general not happen since we're passing
an assumed-good /proc/net/route from the host kernel, but
if we do fail to parse a line then just skip it in the output
we pass to the guest.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20190205174207.9278-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-07 14:11:19 +01:00
Kan Li 22e4a267a6 Fix linux-user crashes in ioctl(SIOCGIFCONF) when ifc_buf is NULL.
Summary:
This is to fix bug https://bugs.launchpad.net/qemu/+bug/1796754.
It is valid for ifc_buf to be NULL according to
http://man7.org/linux/man-pages/man7/netdevice.7.html.

Signed-off-by: Kan Li <likan_999.student@sina.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20181024201303.114-1-likan_999.student@sina.com>
[lv: fix errors reported by checkpatch.pl]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-07 14:04:03 +01:00
Peter Maydell 1dca054955 Queued target/hppa patches
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Merge remote-tracking branch 'remotes/rth/tags/pull-hppa-20190206' into staging

Queued target/hppa patches

# gpg: Signature made Wed 06 Feb 2019 10:50:06 GMT
# gpg:                using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-hppa-20190206:
  target/hppa: fix PSW Q bit behaviour to match hardware
  target/hppa: fix setting registers via gdb
  target/hppa: use tb_cflags() to access tb->cflags

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-07 12:55:28 +00:00
Peter Maydell 713acc316d Queued accel/tcg patches
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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20190206' into staging

Queued accel/tcg patches

# gpg: Signature made Wed 06 Feb 2019 03:42:52 GMT
# gpg:                using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20190206:
  accel/tcg: Consider cluster index in tb_lookup__cpu_state()
  tcg: add early clober modifier in atomic16_cmpxchg on aarch64

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-07 11:46:40 +00:00
Mark Cave-Ayland 6031ff8b0a sun4m: pass initrd size to OpenBIOS via fw_cfg interface
This is to enable OpenBIOS to claim the initrd memory as in-use before attempting
to boot the kernel.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2019-02-06 21:07:53 +00:00
Prasad J Pandit ad280559c6 sun4u: add power_mem_read routine
Define skeleton 'power_mem_read' routine. Avoid NULL dereference.

Reported-by: Fakhri Zulkifli <mohdfakhrizulkifli@gmail.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2019-02-06 21:07:53 +00:00
Thomas Huth c3019efc71 hw/sparc64: Create VGA device only if it has really been requested
The sun4u/sun4v machine currently always creates a VGA device, even if
the user started QEMU with "-nodefaults" or "-vga none". That's likely
not what the users expect in this case, so add a check whether the VGA
adapter has really been requested.

Signed-off-by: Thomas Huth <huth@tuxfamily.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2019-02-06 21:07:53 +00:00
Philippe Mathieu-Daudé e67e91b4b5 hw/input/tsc210x: Fix building with no verbosity
When building with TSC_VERBOSE not defined, we get:
      CC      arm-softmmu/hw/input/tsc210x.o
    hw/input/tsc210x.c: In function ‘tsc2102_data_register_write’:
    hw/input/tsc210x.c:554:5: error: label at end of compound statement
         default:
         ^~~~~~~
    hw/input/tsc210x.c: In function ‘tsc2102_control_register_write’:
    hw/input/tsc210x.c:638:5: error: label at end of compound statement
         bad_reg:
         ^~~~~~~
    hw/input/tsc210x.c: In function ‘tsc2102_audio_register_write’:
    hw/input/tsc210x.c:766:5: error: label at end of compound statement
         default:
         ^~~~~~~
    make[1]: *** [rules.mak:69: hw/input/tsc210x.o] Error 1

Fix this by replacing the culprit fprintf(stderr) calls by a more
recent API: qemu_log_mask(LOG_GUEST_ERROR). Other fprintf() calls
are left untouched.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20190204204517.23698-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-06 15:57:06 +01:00
Thomas Huth dab864dc76 hw/cpu/cluster: Mark the cpu-cluster device with user_creatable = false
The device can not be instantiated by the user and QEMU currently
aborts when you try to use it:

$ x86_64-softmmu/qemu-system-x86_64 -device cpu-cluster
qemu-system-x86_64: hw/cpu/cluster.c:73: cpu_cluster_realize:
 Assertion `cbdata.cpu_count > 0' failed.
Aborted (core dumped)

Since this is an internal device only, mark it with user_creatable = false.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <1549371525-29899-1-git-send-email-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-06 15:55:56 +01:00
Philippe Mathieu-Daudé 4a1335e8df hw/unicore32/puv3: Drop useless inclusion of "hw/i386/pc.h"
In 47973a2dbf we split the last generic chipset out of the PC
board, but forgot to remove the include of "hw/i386/pc.h".
Since it is now unused, remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190204210433.26088-3-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-06 15:54:12 +01:00
Philippe Mathieu-Daudé d5b661e676 hw/sparc64/sun4u: Drop useless inclusion of "hw/i386/pc.h"
In 47973a2dbf we split the last generic chipset out of the PC
board, but forgot to remove the include of "hw/i386/pc.h".
Since it is now unused, remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20190204210433.26088-2-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-06 15:53:24 +01:00
Eric Blake e633a5c661 configure: Avoid non-portable 'test -o/-a'
POSIX says that it is better to use &&/|| and two separate test
invocations than it is to try and use -a and -o (in fact, there
are some tests that are inherently ambiguous to parse if the
user passes in corner-case input like "(").

Since we cannot guarantee which shell runs configure, we cannot
rely on -o/-a always following bash's parser rules.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190205023937.18245-1-eblake@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-06 15:51:55 +01:00
Jon Doron e17bebd049 dump: Set correct vaddr for ELF dump
vaddr needs to be equal to the paddr since the dump file represents the
physical memory image.

Without setting vaddr correctly, GDB would load all the different memory
regions on top of each other to vaddr 0, thus making GDB showing the wrong
memory data for a given address.

Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190109082203.27142-1-arilou@gmail.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
2019-02-06 15:51:12 +01:00
Thomas Huth 70c9483a30 target/moxie: Fix LGPL information in the file headers
It's either "GNU *Library* General Public License version 2" or "GNU
Lesser General Public License version *2.1*", but there was no "version
2.0" of the "Lesser" license. So assume that version 2.1 is meant here.
Also the files mentioned the GPL instead of the LGPL after declaring
that the files are licensed under the LGPL, so change these spots to
use LGPL, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <1549266858-5043-1-git-send-email-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-06 15:46:11 +01:00
Peter Maydell 1dcb3c3b7d qemu-common.h: Update copyright string for 2019
Update the copyright string we use in version/help output,
since we're well into the new year now.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190201173655.4567-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-06 15:45:23 +01:00
Sven Schnelle 68aa851aa2 target/hppa: fix PSW Q bit behaviour to match hardware
PA-RISC specification says: "Setting the PSW Q-bit, PSW{28}, to 1
with this instruction, if it was not already 1, is an undefined
operation." However, at least HP-UX 10.20 sets the Q bit from 0 to 1
with the SSM instruction. Tested this both on HP9000/712 and
HP9000/785/C3750, both machines set the Q bit from 0 to 1 without
exception. This makes HP-UX 10.20 progress a little bit further.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20190129191402.29539-1-svens@stackframe.org>
[rth: Add a comment to the code as well.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-02-06 10:49:21 +00:00
Sven Schnelle 5c41496dd7 target/hppa: fix setting registers via gdb
While doing 'set $pcoqh=0xf0000000' i triggered the assertion below.
The argument order for deposit64() is wrong, and val needs to be
moved to the end.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20190128165333.3814-1-svens@stackframe.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-02-06 10:49:21 +00:00
Emilio G. Cota 84b41e658b target/hppa: use tb_cflags() to access tb->cflags
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <1518663946-2326-1-git-send-email-cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-02-06 10:49:21 +00:00
Peter Maydell 9fd9b7de61 accel/tcg: Consider cluster index in tb_lookup__cpu_state()
In commit f7b78602fd we added the CPU cluster number to the
cflags field of the TB hash; this included adding it to the value
kept in tb->cflags, since we pass that field directly into the hash
calculation in some places. Unfortunately we forgot to check whether
other parts of the code were doing comparisons against tb->cflags
that would need to be updated.

It turns out that there is exactly one such place: the
tb_lookup__cpu_state() function checks whether the TB it has
found in the tb_jmp_cache has a tb->cflags matching the cf_mask
that is passed in. The tb->cflags has the cluster_index in it
but the cf_mask does not.

Hoist the "add cluster index to the cf_mask" code up from
tb_htable_lookup() to tb_lookup__cpu_state() so it can be considered
in the "did this TB match in the jmp cache" condition, as well as
when we do the full hash lookup by physical PC, flags, etc.
(tb_htable_lookup() is only called from tb_lookup__cpu_state(),
so this change doesn't require any further knock-on changes.)

Fixes: f7b78602fd ("accel/tcg: Add cluster number to TCG TB hash")
Tested-by: Cleber Rosa <crosa@redhat.com>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reported-by: Howard Spoelstra <hsp.cat7@gmail.com>
Reported-by: Cleber Rosa <crosa@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190205151810.571-1-peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-02-06 03:39:24 +00:00
Catherine Ho 7400d6938c tcg: add early clober modifier in atomic16_cmpxchg on aarch64
Without this patch, gcc might up the Input/Output registers and
cause unpredictable error.

Fixes: 1ec182c333 ("target/arm: Convert to HAVE_CMPXCHG128")

Signed-off-by: Catherine Ho <catherine.hecx@gmail.com>
Message-Id: <1548838794-23757-1-git-send-email-catherine.hecx@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-02-06 03:38:39 +00:00
Peter Maydell 3e29da9fd8 * cpu-exec fixes (Emilio, Laurent)
* TCG bugfix in queue.h (Paolo)
 * high address load for linuxboot (Zhijian)
 * PVH support (Liam, Stefano)
 * misc i386 changes (Paolo, Robert, Doug)
 * configure tweak for openpty (Thomas)
 * elf2dmp port to Windows (Viktor)
 * initial improvements to Makefile infrastructure (Yang + GSoC 2013)
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 Version: GnuPG v2.0.22 (GNU/Linux)
 
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* cpu-exec fixes (Emilio, Laurent)
* TCG bugfix in queue.h (Paolo)
* high address load for linuxboot (Zhijian)
* PVH support (Liam, Stefano)
* misc i386 changes (Paolo, Robert, Doug)
* configure tweak for openpty (Thomas)
* elf2dmp port to Windows (Viktor)
* initial improvements to Makefile infrastructure (Yang + GSoC 2013)

# gpg: Signature made Tue 05 Feb 2019 17:34:42 GMT
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (76 commits)
  queue: fix QTAILQ_FOREACH_REVERSE_SAFE
  scsi-generic: Convert from DPRINTF() macro to trace events
  scsi-disk: Convert from DPRINTF() macro to trace events
  pc: Use hotplug_handler_(plug|unplug|unplug_request)
  i386: hvf: Fix smp boot hangs
  hw/vfio/Makefile.objs: Create new CONFIG_* variables for VFIO core and PCI
  hw/i2c/Makefile.objs: Create new CONFIG_* variables for EEPROM and ACPI controller
  hw/tricore/Makefile.objs: Create CONFIG_* for tricore
  hw/openrisc/Makefile.objs: Create CONFIG_* for openrisc
  hw/moxie/Makefile.objs: Conditionally build moxie
  hw/hppa/Makefile.objs: Create CONFIG_* for hppa
  hw/cris/Makefile.objs: Create CONFIG_* for cris
  hw/alpha/Makefile.objs: Create CONFIG_* for alpha
  hw/sparc64/Makefile.objs: Create CONFIG_* for sparc64
  hw/riscv/Makefile.objs: Create CONFIG_* for riscv boards
  hw/nios2/Makefile.objs: Conditionally build nios2
  hw/xtensa/Makefile.objs: Build xtensa_sim and xtensa_fpga conditionally
  hw/lm32/Makefile.objs: Conditionally build lm32 and milkmyst
  hw/sparc/Makefile.objs: CONFIG_* for sun4m and leon3 created
  hw/s390/Makefile.objs: Create new CONFIG_* variables for s390x boards and devices
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	qemu-deprecated.texi
2019-02-05 19:39:22 +00:00
Peter Maydell 47994e16b1 target-arm queue:
* Implement Armv8.5-BTI extension for system emulation mode
  * Implement the PR_PAC_RESET_KEYS prctl() for linux-user mode's Armv8.3-PAuth support
  * Support TBI (top-byte-ignore) properly for linux-user mode
  * gdbstub: allow killing QEMU via vKill command
  * hw/arm/boot: Support DTB autoload for firmware-only boots
  * target/arm: Make FPSCR/FPCR trapped-exception bits RAZ/WI
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20190205' into staging

target-arm queue:
 * Implement Armv8.5-BTI extension for system emulation mode
 * Implement the PR_PAC_RESET_KEYS prctl() for linux-user mode's Armv8.3-PAuth support
 * Support TBI (top-byte-ignore) properly for linux-user mode
 * gdbstub: allow killing QEMU via vKill command
 * hw/arm/boot: Support DTB autoload for firmware-only boots
 * target/arm: Make FPSCR/FPCR trapped-exception bits RAZ/WI

# gpg: Signature made Tue 05 Feb 2019 17:04:22 GMT
# 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-20190205: (22 commits)
  target/arm: Make FPSCR/FPCR trapped-exception bits RAZ/WI
  hw/arm/boot: Support DTB autoload for firmware-only boots
  hw/arm/boot: Clarify why arm_setup_firmware_boot() doesn't set env->boot_info
  hw/arm/boot: Factor out "set up firmware boot" code
  hw/arm/boot: Factor out "direct kernel boot" code into its own function
  hw/arm/boot: Fix block comment style in arm_load_kernel()
  gdbstub: allow killing QEMU via vKill command
  target/arm: Enable TBI for user-only
  target/arm: Compute TB_FLAGS for TBI for user-only
  target/arm: Clean TBI for data operations in the translator
  target/arm: Add TBFLAG_A64_TBID, split out gen_top_byte_ignore
  tests/tcg/aarch64: Add pauth smoke test
  linux-user: Implement PR_PAC_RESET_KEYS
  target/arm: Enable BTI for -cpu max
  target/arm: Set btype for indirect branches
  target/arm: Reset btype for direct branches
  target/arm: Default handling of BTYPE during translation
  target/arm: Cache the GP bit for a page in MemTxAttrs
  exec: Add target-specific tlb bits to MemTxAttrs
  target/arm: Add BT and BTYPE to tb->flags
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 18:25:07 +00:00
Peter Maydell 9669c97562 Fixes and improvements in tcg and the zPCI code.
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 aw/JsDujyntM+V58ZbJZlaiimzv3nqCx0+L0vf9M/6gcRjFH0gTzQ/TxBwWbS1SL
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 Cz2ghigKsJ2O
 =E3i4
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20190205' into staging

Fixes and improvements in tcg and the zPCI code.

# gpg: Signature made Tue 05 Feb 2019 16:36:09 GMT
# gpg:                using RSA key C3D0D66DC3624FF6A8C018CEDECF6B93C6F02FAF
# gpg:                issuer "cohuck@redhat.com"
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [unknown]
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>" [unknown]
# gpg:                 aka "Cornelia Huck <cohuck@redhat.com>" [unknown]
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* remotes/cohuck/tags/s390x-20190205:
  s390x/pci: Unplug remaining requested devices on pcihost reset
  s390x/pci: Warn when adding PCI devices without the 'zpci' feature
  s390x/pci: Fix hotplugging of PCI bridges
  s390x/pci: Fix primary bus number for PCI bridges
  s390x/tcg: Don't model FP registers as globals
  s390x/pci: mark zpci devices as unmigratable
  s390x/pci: Drop release timer and replace it with a flag
  s390x/pci: Introduce unplug requests and split unplug handler
  s390x: remove direct reference to mem_path global from s390x code
  target/s390x: define TCG_GUEST_DEFAULT_MO for MTTCG

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 17:39:15 +00:00
Peter Maydell a15945d98d target/arm: Make FPSCR/FPCR trapped-exception bits RAZ/WI
The {IOE, DZE, OFE, UFE, IXE, IDE} bits in the FPSCR/FPCR are for
enabling trapped IEEE floating point exceptions (where IEEE exception
conditions cause a CPU exception rather than updating the FPSR status
bits). QEMU doesn't implement this (and nor does the hardware we're
modelling), but for implementations which don't implement trapped
exception handling these control bits are supposed to be RAZ/WI.
This allows guest code to test for whether the feature is present
by trying to write to the bit and checking whether it sticks.

QEMU is incorrectly making these bits read as written. Make them
RAZ/WI as the architecture requires.

In particular this was causing problems for the NetBSD automatic
test suite.

Reported-by: Martin Husemann <martin@netbsd.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190131130700.28392-1-peter.maydell@linaro.org
2019-02-05 16:52:42 +00:00
Peter Maydell 5614ca800e hw/arm/boot: Support DTB autoload for firmware-only boots
The arm_boot_info struct has a skip_dtb_autoload flag: if this is
set to true by the board code then arm_load_kernel() will not
load the DTB itself, but will leave this for the board code to
do itself later. However, the check for this is done in a
code path which is only executed for the case where we load
a kernel image file. If we're taking the "boot via firmware"
code path then the flag isn't honoured and the DTB is never
loaded.

We didn't notice this because the only real user of "boot
via firmware" that cares about the DTB is the virt board
(for UEFI boot), and that always wants skip_dtb_autoload
anyway. But the SBSA reference board model we're planning to
add will want the flag to behave correctly.

Now we've refactored the arm_load_kernel() function, the
fix is simple: drop the early 'return' so we fall into
the same "load the DTB" code the boot-direct-kernel path uses.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20190131112240.8395-6-peter.maydell@linaro.org
2019-02-05 16:52:42 +00:00
Peter Maydell 2a5bdfc8d5 hw/arm/boot: Clarify why arm_setup_firmware_boot() doesn't set env->boot_info
The code path for booting firmware doesn't set env->boot_info. At
first sight this looks odd, so add a comment saying why we don't.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20190131112240.8395-5-peter.maydell@linaro.org
2019-02-05 16:52:42 +00:00
Peter Maydell 4c0f268731 hw/arm/boot: Factor out "set up firmware boot" code
Factor out the "boot via firmware" code path from arm_load_kernel()
into its own function.

This commit only moves code around; no semantic changes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20190131112240.8395-4-peter.maydell@linaro.org
2019-02-05 16:52:42 +00:00
Peter Maydell d33774ee44 hw/arm/boot: Factor out "direct kernel boot" code into its own function
Factor out the "direct kernel boot" code path from arm_load_kernel()
into its own function; this function is getting long enough that
the code flow is a bit confusing.

This commit only moves code around; no semantic changes.

We leave the "load the dtb" code in arm_load_kernel() -- this
is currently only used by the "direct kernel boot" path, but
this is a bug which we will fix shortly.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20190131112240.8395-3-peter.maydell@linaro.org
2019-02-05 16:52:41 +00:00
Peter Maydell c3a42358e3 hw/arm/boot: Fix block comment style in arm_load_kernel()
Fix the block comment style in arm_load_kernel() to QEMU's
current style preferences. This will allow us to do some
refactoring of this function without checkpatch complaining
about the code-motion patches.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20190131112240.8395-2-peter.maydell@linaro.org
2019-02-05 16:52:41 +00:00
Max Filippov 45a4de2583 gdbstub: allow killing QEMU via vKill command
With multiprocess extensions gdb uses 'vKill' packet instead of 'k' to
kill the inferior. Handle 'vKill' the same way 'k' was handled in the
presence of single process.

Fixes: 7cf48f6752 ("gdbstub: add multiprocess support to
(f|s)ThreadInfo and ThreadExtraInfo")

Cc: Luc Michel <luc.michel@greensocs.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com>
Tested-by: KONRAD Frederic <frederic.konrad@adacore.com>
Message-id: 20190130192403.13754-1-jcmvbkbc@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 16:52:41 +00:00
Richard Henderson f6a148fef6 target/arm: Enable TBI for user-only
This has been enabled in the linux kernel since v3.11
(commit d50240a5f6cea, 2013-09-03,
"arm64: mm: permit use of tagged pointers at EL0").

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190204132126.3255-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 16:52:40 +00:00
Peter Maydell c47eaf9fc2 target/arm: Compute TB_FLAGS for TBI for user-only
Enables, but does not turn on, TBI for CONFIG_USER_ONLY.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190204132126.3255-4-richard.henderson@linaro.org
[PMM: adjusted #ifdeffery to placate clang, which otherwise complains
about static functions that are unused in the CONFIG_USER_ONLY build]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 16:52:40 +00:00
Richard Henderson 3a471103ac target/arm: Clean TBI for data operations in the translator
This will allow TBI to be used in user-only mode, as well as
avoid ping-ponging the softmmu TLB when TBI is in use.  It
will also enable other armv8 extensions.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190204132126.3255-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 16:52:40 +00:00
Richard Henderson 4a9ee99db3 target/arm: Add TBFLAG_A64_TBID, split out gen_top_byte_ignore
Split out gen_top_byte_ignore in preparation of handling these
data accesses; the new tbflags field is not yet honored.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190204132126.3255-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 16:52:39 +00:00
Richard Henderson 06bf3b153a tests/tcg/aarch64: Add pauth smoke test
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190201195404.30486-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 16:52:39 +00:00
Richard Henderson bff63fbf97 linux-user: Implement PR_PAC_RESET_KEYS
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190201195404.30486-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 16:52:39 +00:00
Richard Henderson a15daafa1c target/arm: Enable BTI for -cpu max
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190128223118.5255-11-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 16:52:38 +00:00
Richard Henderson 001d47b6ef target/arm: Set btype for indirect branches
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190128223118.5255-9-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 16:52:38 +00:00
Richard Henderson 3586227035 target/arm: Reset btype for direct branches
This is all of the non-exception cases of DISAS_NORETURN.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20190128223118.5255-8-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-05 16:52:38 +00:00