Commit Graph

57827 Commits

Author SHA1 Message Date
Marc-André Lureau
c3b1642b9b dump-guest-memory.py: fix "You can't do that without a process to debug"
If the script is run with a core (no running process), it produces an
error:

(gdb)  dump-guest-memory /tmp/vmcore X86_64
guest RAM blocks:
target_start     target_end       host_addr        message count
---------------- ---------------- ---------------- ------- -----
0000000000000000 00000000000a0000 00007f7935800000 added       1
00000000000a0000 00000000000b0000 00007f7934200000 added       2
00000000000c0000 00000000000ca000 00007f79358c0000 added       3
00000000000ca000 00000000000cd000 00007f79358ca000 joined      3
00000000000cd000 00000000000e8000 00007f79358cd000 joined      3
00000000000e8000 00000000000f0000 00007f79358e8000 joined      3
00000000000f0000 0000000000100000 00007f79358f0000 joined      3
0000000000100000 0000000080000000 00007f7935900000 joined      3
00000000fd000000 00000000fe000000 00007f7934200000 added       4
00000000fffc0000 0000000100000000 00007f7935600000 added       5
Python Exception <class 'gdb.error'> You can't do that without a process to debug.:
Error occurred in Python command: You can't do that without a process
to debug.

Replace the object_resolve_path_type() function call with a local
volatile variable.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2018-01-02 14:49:54 +01:00
Marc-André Lureau
c983ca8457 dump: fix note_name_equal()
Use the function argument "name" instead of hardcoded
"VMCOREINFO". All callers use "VMCOREINFO" as argument, so this isn't
an exposed bug, thankfully.

Simplify a little bit the code while touching this.

Suggested-by: Andrew Jones <drjones@redhat.com>
Reported-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2018-01-02 14:49:54 +01:00
Peter Maydell
281f327487 -----BEGIN PGP SIGNATURE-----
iQIcBAABAgAGBQJaPAzkAAoJEPMMOL0/L748n2sP/2Ov8DQICiewbFmkbg7qV4a2
 kF/W8OsE3pKkBdOaJhCgTOZLbQ9WnzBlwOkcItn7Vcm4CPXweMJZLkuHi118enQK
 KFoidnthP+66dbwVb3mSZnwZCBKiEdyPdd+suA3uwQGTHVuDwM0RmOzwT1wEiaiC
 A9ucz7c6TgPwgjI0kIbnEk3JwA9rId2kzmgGWmwl8KQmwoJ8txMzi2HcypG0tCUp
 /lMlh2m8BfOqTcmzikjkmHR6pJVF5NB2iSX8s7TPGftjUneyZ4ri/mjVWhIRAp5W
 vcF2BTh2TNTidtw0/iYEUQeYG25ZKZt5pv+5D340+asU971UgarTlDCvr0Y4zxFG
 dSoEcj/NZ3KkxrjDwymZSDDPIJm2bomD4L00dEJk7aSkWrVVEoNIwDQypTTUJubf
 ilwtBXisSAJSzuqocwyfD9gjN836fvTJCrO2mvV3aPYjBuK4Q4iQb9pyX21uDAb5
 0RMBRmUVTj2qXehS1gx92eFuHGFPVtwH8m1M2Ea2148QpOaYUX6zQnOsluBbYO35
 pe+qkRBjlS+T0Vz+JXS6jCLR4AU+xgs28MwvZdvNo3acf7ROJtOCDKcG40inJT/W
 MArL/TTNh6HkdbqOgUGc4taNjiOIWl2vbATB8Lc0bQsxuX4MpVCFLj2nEtLn+jX5
 gckEOSkwB4my4Aley74p
 =+aT7
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/vivier/tags/m68k-for-2.12-pull-request' into staging

# gpg: Signature made Thu 21 Dec 2017 19:35:00 GMT
# gpg:                using RSA key 0xF30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier/tags/m68k-for-2.12-pull-request:
  tests/boot-serial-test: Add support for the mcf5208evb board
  target/m68k: fix set_cc_op()
  target/m68k: add monitor.c
  target/m68k: remove unused variable gen_throws_exception
  Split adb.c into adb.c, adb-mouse.c and adb-kbd.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-12-22 00:11:36 +00:00
Laurent Vivier
43ab9a5376 hw/i386/vmport: fix missing definitions with non-log trace backends
When compiled with anything other than the 'log' trace backend, we have:

   error: implicit declaration of function 'qemu_log_mask'
   error: 'LOG_UNIMP' undeclared (first use in this function)

This patch adds the missing include.

Fixes: 7299e1a411
       ("hw/i386/vmport: replace fprintf() by trace events or LOG_UNIMP")
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 20171221211103.30311-1-laurent@vivier.eu
[PMM: fixed commit message description of when problem occurs]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-12-21 22:52:28 +00:00
Thomas Huth
598a29f360 tests/boot-serial-test: Add support for the mcf5208evb board
We can output a character quite easily here with some few lines of
assembly that we provide as a mini-kernel for this board.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1512031988-32490-4-git-send-email-thuth@redhat.com>
[lv: add boot-serial-test in check-qtest-m68k]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2017-12-21 20:13:18 +01:00
Laurent Vivier
7deddf96e9 target/m68k: fix set_cc_op()
The first call of set_cc_op() in a new translation sequence
is done with old_op set to CC_OP_DYNAMIC (-1).

This will do an out of bound access to the array cc_op_live[].

We fix that by adding an entry in cc_op_live[] for CC_OP_DYNAMIC.

Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20171221160558.14151-1-laurent@vivier.eu>
2017-12-21 20:11:28 +01:00
Laurent Vivier
cea066821c target/m68k: add monitor.c
This allows to use registers content in the monitor.

Example:

 BEFORE:
  (qemu) print $d0
  unknown register

 AFTER:
  (qemu) print $d0
  0
  (qemu) print $sr
  0x2000
  (qemu) x/10i $pc
  0x40010a2a:  movew %sr,%d0
  0x40010a2c:  oril #1792,%d0
  0x40010a32:  movew %d0,%sr
  0x40010a34:  movel %a0@,%d0
  0x40010a36:  btst #3,%d0
  0x40010a3a:  beqs 0x40010a26
  0x40010a3c:  movew %sr,%d0
  0x40010a3e:  andil #63743,%d0
  0x40010a44:  movew %d0,%sr
  0x40010a46:  rts

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-Id: <20171221083057.17942-1-laurent@vivier.eu>
2017-12-21 20:11:28 +01:00
Laurent Vivier
5f63f6ab50 target/m68k: remove unused variable gen_throws_exception
It has been introduced by e6e5906b6e ("ColdFire target."),
but the content is never used.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-Id: <20171220130815.20708-1-laurent@vivier.eu>
2017-12-21 20:11:28 +01:00
Laurent Vivier
77cb0f5aaf Split adb.c into adb.c, adb-mouse.c and adb-kbd.c
It makes the code clearer to separate the bus implementation
from the devices one.

Replace ADB_DPRINTF() with trace events (and adding new ones in adb-kbd.c).
Some minor changes to make checkpatch.pl happy.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20171220121406.24056-1-laurent@vivier.eu>
2017-12-21 20:11:28 +01:00
Peter Maydell
23bafd75cd * NBD and chardev conversion to QIONetListener (Daniel)
* MTTCG fixes (David)
 * Hyper-V fixes (Roman, Evgeny)
 * share-rw option (Fam)
 * Mux chardev event bugfix (Marc-André)
 * Add systemd unit files in contrib/ (me)
 * SCSI and block/iscsi.c bugfixes (me, Peter L.)
 * unassigned_mem_ops fixes (Peter M.)
 * VEX decoding fix (Peter M.)
 * "info pic" and "info irq" improvements (Peter Xu)
 * vmport trace events (Philippe)
 * Braille chardev bugfix (Samuel)
 * Compiler warnings fix (Stefan)
 * initial support for TCG smoke test of more boards (Thomas)
 * New CPU features (Yang)
 * Reduce startup memory usage (Yang)
 * QemuThread race fix (linhecheng)
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAlo7cTkUHHBib256aW5p
 QHJlZGhhdC5jb20ACgkQv/vSX3jHroPTsQf+IlIjTWnwBKaoECDo3t5Nulj84+O5
 KLLwW7Yhy6vtu1U8N2kxzGickGf+wF1OEw0916Ku6b/P2jpKNogjDxXBQuO+uerG
 fPdc17gpSLcIXFzcfhiEH7pKJsdtcW+TTWPoF/RNK0KLP/tmJ+SBNNn0Ly0KRxQ9
 t4YoMkFiybMZ+bpuixy/2TN2ZRwyuGdjXSiFLjium6ioPF262f4DqXV8PA7kfV8b
 FCANCql/p0HvAtURgzsJt0lfqAatKLOUELE4ClHBjUfGCLXAwMw8LQ0F/9jBAcaz
 fJov/RKjh5y2Av9mjCaTPEu+E550+4qdDcfpk2kuV8xH+CUspUpqGGm3jw==
 =y+Yl
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* NBD and chardev conversion to QIONetListener (Daniel)
* MTTCG fixes (David)
* Hyper-V fixes (Roman, Evgeny)
* share-rw option (Fam)
* Mux chardev event bugfix (Marc-André)
* Add systemd unit files in contrib/ (me)
* SCSI and block/iscsi.c bugfixes (me, Peter L.)
* unassigned_mem_ops fixes (Peter M.)
* VEX decoding fix (Peter M.)
* "info pic" and "info irq" improvements (Peter Xu)
* vmport trace events (Philippe)
* Braille chardev bugfix (Samuel)
* Compiler warnings fix (Stefan)
* initial support for TCG smoke test of more boards (Thomas)
* New CPU features (Yang)
* Reduce startup memory usage (Yang)
* QemuThread race fix (linhecheng)

# gpg: Signature made Thu 21 Dec 2017 08:30:49 GMT
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# 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: (41 commits)
  chardev: convert the socket server to QIONetListener
  blockdev: convert qemu-nbd server to QIONetListener
  blockdev: convert internal NBD server to QIONetListener
  test: add some chardev mux event tests
  chardev: fix backend events regression with mux chardev
  rcu: reduce more than 7MB heap memory by malloc_trim()
  checkpatch: volatile with a comment or sig_atomic_t is okay
  i8259: move TYPE_INTERRUPT_STATS_PROVIDER upper
  kvm-i8259: support "info pic" and "info irq"
  i8259: generalize statistics into common code
  i8259: use DEBUG_IRQ_COUNT always
  i8259: convert DPRINTFs into trace
  Remove legacy -no-kvm-pit option
  scsi: replace hex constants with #defines
  scsi: provide general-purpose functions to manage sense data
  hw/i386/vmport: replace fprintf() by trace events or LOG_UNIMP
  hw/mips/boston: Remove workaround for writes to ROM aborting
  exec: Don't reuse unassigned_mem_ops for io_mem_rom
  block/iscsi: only report an iSCSI Failure if we don't handle it gracefully
  block/iscsi: dont leave allocmap in an invalid state on UNMAP failure
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-12-21 16:34:23 +00:00
Peter Maydell
c3e7267935 -----BEGIN PGP SIGNATURE-----
iQFEBAABCAAuFiEEUAN8t5cGD3bwIa1WyjViTGqRccYFAlo7E5gQHGZhbXpAcmVk
 aGF0LmNvbQAKCRDKNWJMapFxxqbqB/9o7/Qz5pbUMKWAaRTwpgLXTKWvVRklNSLi
 zcgtArySmC+jcCoHioeruhXdWrtXVT6jRLz7EqghrBaWBIcIA+9mDGGzKs+QGkzD
 XF1KpWcatd90VFUI+iomI84lhexRtcQ0VxVwWsi7ir5EWlM6AtUUSiW23qD8EMat
 ESOc0Hgl7Ap2Z39GSwBNeF4FL+63jUrTKe2+S4xGs887l70H3+LzIXJyYnVhp7Vg
 QQz880P7cRyUnZ4ssFhtrJ2tAKp917pgjjJw0zoZLeWtktfhrxlV8grNJA+DSQoI
 X2zbeM/OdGp8OHoztwtFy3gAbSiNQh7AOTnYHyKUTHB4cjQQLrhc
 =SF/c
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/famz/tags/staging-pull-request' into staging

# gpg: Signature made Thu 21 Dec 2017 01:51:20 GMT
# gpg:                using RSA key 0xCA35624C6A9171C6
# gpg: Good signature from "Fam Zheng <famz@redhat.com>"
# Primary key fingerprint: 5003 7CB7 9706 0F76 F021  AD56 CA35 624C 6A91 71C6

* remotes/famz/tags/staging-pull-request:
  util: add is_equal to UUID API
  Revert "docker: Enable features explicitly in test-full"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-12-21 13:14:06 +00:00
Daniel P. Berrange
194b7f0d44 chardev: convert the socket server to QIONetListener
Instead of creating a QIOChannelSocket directly for the chardev
server socket, use a QIONetListener. This provides the ability
to listen on multiple sockets at the same time, so enables
full support for IPv4/IPv6 dual stack.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <20171218135417.28301-2-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Daniel P. Berrange
e4849c1d7c blockdev: convert qemu-nbd server to QIONetListener
Instead of creating a QIOChannelSocket directly for the NBD
server socket, use a QIONetListener. This provides the ability
to listen on multiple sockets at the same time, so enables
full support for IPv4/IPv6 dual stack. This also means we can
honour multiple FDs received during socket activation.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <20171218101643.20360-3-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Daniel P. Berrange
862172f45c blockdev: convert internal NBD server to QIONetListener
Instead of creating a QIOChannelSocket directly for the NBD
server socket, use a QIONetListener. This provides the ability
to listen on multiple sockets at the same time, so enables
full support for IPv4/IPv6 dual stack.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <20171218101643.20360-2-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Marc-André Lureau
d45f80ba82 test: add some chardev mux event tests
Check the expected behaviour of qemu_chr_be_event() on a mux chardev.

For some reason, sending the event on the base chardev broadcast to
all frontends, while sending it on the mux chardev itself should
trigger the event on the currently focused chardev frontend.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20171103152824.21948-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Marc-André Lureau
d09c4a4787 chardev: fix backend events regression with mux chardev
Kirill noticied that on recent versions on QEMU he was not able to
trigger SysRq to invoke debug capabilites of Linux Kernel.  He tracked
it down to qemu_chr_be_event() ignoring CHR_EVENT_BREAK due s->be
being NULL. The bug was introduced in 2.8, commit a4afa548fc ("char:
move front end handlers in CharBackend"). Since the commit, the
qemu_chr_be_event() failed to deliver CHR_EVENT_BREAK due to
qemu_chr_fe_init() does not set s->be in case of mux.

Let's fix this by teaching mux to send an event to the frontend with
the focus.

Reported-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Fixes: a4afa548fc ("char: move front end handlers in CharBackend")
Message-Id: <20171103152824.21948-2-marcandre.lureau@redhat.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Yang Zhong
5a22ab7162 rcu: reduce more than 7MB heap memory by malloc_trim()
Since there are some issues in memory alloc/free machenism
in glibc for little chunk memory, if Qemu frequently
alloc/free little chunk memory, the glibc doesn't alloc
little chunk memory from free list of glibc and still
allocate from OS, which make the heap size bigger and bigger.

This patch introduce malloc_trim(), which will free heap
memory when there is no rcu call during rcu thread loop.
malloc_trim() can be enabled/disabled by --enable-malloc-trim/
--disable-malloc-trim in the Qemu configure command. The
default malloc_trim() is enabled for libc.

Below are test results from smaps file.
(1)without patch
55f0783e1000-55f07992a000 rw-p 00000000 00:00 0  [heap]
Size:              21796 kB
Rss:               14260 kB
Pss:               14260 kB

(2)with patch
55cc5fadf000-55cc61008000 rw-p 00000000 00:00 0  [heap]
Size:              21668 kB
Rss:                6940 kB
Pss:                6940 kB

Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Message-Id: <1513775806-19779-1-git-send-email-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Marc-André Lureau
6b012d2311 checkpatch: volatile with a comment or sig_atomic_t is okay
This assumes that the comment gives some justification;
"volatile sig_atomic_t" is also self-explanatory and usually
correct.

Discussed in:
'[Qemu-devel] [PATCH] dump-guest-memory.py: fix "You can't do that without a process to debug"'

Suggested-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20171215181810.4122-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Peter Xu
b8c7723440 i8259: move TYPE_INTERRUPT_STATS_PROVIDER upper
Now both classes (i8259, i8259-kvm) support this.  Move this upper to
the common class code.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171210063819.14892-6-peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Peter Xu
e267d16496 kvm-i8259: support "info pic" and "info irq"
Let's leverage the i8259 common code for kvm-i8259 too.

I think it's still possible that stats can lost when i8259 is in kernel
and meanwhile when irqfd is used, e.g., by vfio or vhost devices.
However that should be rare IMHO since they should be using MSIs mostly
if they really want performance (that's why people use vhost and device
assignment), and no old INTx should be used.  As long as the INTx users
are emulated in QEMU the stats will be correct.

For "info pic", it should be always accurate since we fetch kvm regs
before dump.

More importantly, it's just too simple to do this now - it's only 10+
LOC to gain this feature.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171210063819.14892-5-peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Peter Xu
1b23190aba i8259: generalize statistics into common code
It was only for userspace i8259.  Move it to general code so that
kvm-i8259 can also use it in the future.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171210063819.14892-4-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Peter Xu
f260f7361c i8259: use DEBUG_IRQ_COUNT always
It's not really scary to even enable it forever.  After all it's i8259,
and it's even not the kernel one.

Then we can remove quite a few of lines to make it cleaner.  And "info
irq" will always work for it.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171210063819.14892-3-peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Peter Xu
0880a87300 i8259: convert DPRINTFs into trace
One thing to mention is that in pic_set_irq() I need to uncomment a few
lines in the macros to make sure IRQ value calculation is correct.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171210063819.14892-2-peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Thomas Huth
ed57c75796 Remove legacy -no-kvm-pit option
It's only printing a warning since QEMU v1.3.0, so nobody should use
this anymore today. Let's get rid of this now.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1513619065-31722-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Paolo Bonzini
9661e208f8 scsi: replace hex constants with #defines
Sense keys have nice #defines in scsi/constants.h, use them.

Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Paolo Bonzini
f68d98b21f scsi: provide general-purpose functions to manage sense data
Extract the common parts of scsi_sense_buf_to_errno, scsi_convert_sense
and scsi_target_send_command's REQUEST SENSE handling into two new
functions scsi_parse_sense_buf and scsi_build_sense_buf.

Fix a bug in scsi_target_send_command along the way; the length was
written in buf[10] rather than buf[7].

Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Fixes: b07fbce634 ("scsi-bus: correct responses for INQUIRY and REQUEST SENSE")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Philippe Mathieu-Daudé
7299e1a411 hw/i386/vmport: replace fprintf() by trace events or LOG_UNIMP
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20171215034356.4449-2-f4bug@amsat.org>
[Replace unknown command tracepoint with LOG_UNIMP, add
 generic tracepoint for vmport commands. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Peter Maydell
5fb3d63288 hw/mips/boston: Remove workaround for writes to ROM aborting
Now that the memory system correctly handles writes to ROM for
guest CPUs that may generate exceptions for decode errors, we
can remove the workaround from the boston board.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1513187549-2435-3-git-send-email-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Peter Maydell
8af36743c2 exec: Don't reuse unassigned_mem_ops for io_mem_rom
We set up the io_mem_rom special memory region using the
unassigned_mem_ops structure; this is then used when a guest tries to
write to ROM.  This is incorrect, because the behaviour of unassigned
memory may be different from that of ROM for writes.  In particular,
on some architectures writing to unassigned memory generates a guest
exception, whereas writing to ROM is generally ignored.  Use a
special readonly_mem_ops for this purpose instead, so writes to
ROM are ignored for all guest CPUs.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1513187549-2435-2-git-send-email-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Peter Lieven
e38bc23454 block/iscsi: only report an iSCSI Failure if we don't handle it gracefully
we currently report an "iSCSI Failure" in iscsi_co_generic_cb if the task
hasn't completed with SCSI_STATUS_GOOD. However, we expect a failure in
some cases and handle it gracefully. This is the case for misaligned UNMAPs
and WRITESAME10/16 calls without UNMAP. In this case a failure in the
logs can be quite misleading.

While we are at it improve the logging to reveal which operation failed
at what LBA.

Signed-off-by: Peter Lieven <pl@kamp.de>
Message-Id: <1512733868-9009-3-git-send-email-pl@kamp.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:32 +01:00
Peter Lieven
aef172ffdc block/iscsi: dont leave allocmap in an invalid state on UNMAP failure
we forgot to set the allocmap to invalid if an UNMAP call fails.

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-Id: <1512733868-9009-2-git-send-email-pl@kamp.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:31 +01:00
Peter Xu
87a621d857 cpu: suffix cpu address spaces with cpu index
Renaming cpu address space names so that they won't be the same when
there are more than one.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171123092333.16085-4-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:31 +01:00
Peter Xu
80ceb07a83 cpu: refactor cpu_address_space_init()
Normally we create an address space for that CPU and pass that address
space into the function.  Let's just do it inside to unify address space
creations.  It'll simplify my next patch to rename those address spaces.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171123092333.16085-3-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:31 +01:00
Thomas Huth
7ce32f3005 hw/moxie/moxiesim: Add support for loading a BIOS on moxiesim
The moxiesim machine already defines a memory region for a firmware,
but does not provide the possibility to load an image via "-bios" yet.
This will be needed for the boot-serial tester, so let's add support
for "-bios" here now.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1512031988-32490-6-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:31 +01:00
Thomas Huth
e12c08d3b6 tests/boot-serial-test: Add code to allow to specify our own kernel or bios
QEMU only ships with some few firmware images, i.e. we can currently run
the boot-serial test only on a very limited set of machines. But writing
some characters to the default UART of a machine can often be done with
some few lines of assembly, so we add the possibility to the boot-serial
tester to use its own mini-kernels or mini-firmwares. We write such images
then into a file that we can load with the "-kernel" or "-bios" parameter
when we launch QEMU.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1512031988-32490-3-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:30:28 +01:00
Thomas Huth
92b540dac9 tests/boot-serial-test: Make sure that we check the timeout regularly
If the guest continuesly writes characters to the UART, we never leave
the inner while loop and thus never check whether we've reached the
timeout value. So if we fail to find the expected string in the UART
output, the test just hangs and never finishs. Use a counter to regularly
break out of the while loop to check the timeout.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1512031988-32490-2-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:45 +01:00
Peter Maydell
cfcca361d7 target/i386: Fix handling of VEX prefixes
In commit e3af7c788b we
replaced direct calls to to cpu_ld*_code() with calls
to the x86_ld*_code() wrappers which incorporate an
advance of s->pc. Unfortunately we didn't notice that
in one place the old code was deliberately not incrementing
s->pc:

@@ -4501,7 +4528,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu)
             static const int pp_prefix[4] = {
                 0, PREFIX_DATA, PREFIX_REPZ, PREFIX_REPNZ
             };
-            int vex3, vex2 = cpu_ldub_code(env, s->pc);
+            int vex3, vex2 = x86_ldub_code(env, s);

             if (!CODE64(s) && (vex2 & 0xc0) != 0xc0) {
                 /* 4.1.4.6: In 32-bit mode, bits [7:6] must be 11b,

This meant we were mishandling this set of instructions.
Remove the manual advance of s->pc for the "is VEX" case
(which is now done by x86_ldub_code()) and instead rewind
PC in the case where we decide that this isn't really VEX.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-stable@nongnu.org
Reported-by: Alexandro Sanchez Bach <alexandro@phi.nz>
Message-Id: <1513163959-17545-1-git-send-email-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:45 +01:00
Daniel P. Berrange
62473511ec sockets: remove obsolete code that updated listen address
When listening on unix/tcp sockets there was optional code that would update
the original SocketAddress struct with the info about the actual address that
was listened on. Since the conversion of everything to QIOChannelSocket, no
remaining caller made use of this feature. It has been replaced with the ability
to query the listen address after the fact using the function
qio_channel_socket_get_local_address. This is a better model when the input
address can result in listening on multiple distinct sockets.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171212111219.32601-1-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
Samuel Thibault
1ef7c96ee2 baum: Truncate braille device size to 84x1
Baum device bigger than 84 do not actually exist, but the user's own
Braille device might be wider than 84 columns.  Some guest drivers
would be upset by such sizes, so clamp the device size.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Message-Id: <20171211001950.27843-1-samuel.thibault@ens-lyon.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
Stefan Weil
a4926d9912 target/i386: Fix compiler warnings
These gcc warnings are fixed:

target/i386/translate.c:4461:12: warning:
 variable 'prefixes' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered]
target/i386/translate.c:4466:9: warning:
 variable 'rex_w' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered]
target/i386/translate.c:4466:16: warning:
 variable 'rex_r' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered]

Tested with x86_64-w64-mingw32-gcc from Debian stretch.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20171113064845.29142-1-sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
David Hildenbrand
d84be02d69 cpu-exec: fix missed CPU kick during interrupt injection
The conditional memory barrier not only looks strange but actually is
wrong.

On s390x, I can reproduce interrupts via cpu_interrupt() not leading to
a proper kick out of emulation every now and then. cpu_interrupt() is
especially used for inter CPU communication via SIGP (esp. external
calls and emergency interrupts).

With this patch, I was not able to reproduce. (esp. no stalls or hangs
in the guest).

My setup is s390x MTTCG with 16 VCPUs on 8 CPU host, running make -j16.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20171129191319.11483-1-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
David Hildenbrand
ebd05fea9b cpus: make pause_all_cpus() play with SMP on single threaded TCG
pause_all_cpus() is sometimes called from a VCPU thread (e.g. s390x
during special reset). It cannot deal with multiple VCPUs per Thread
(single threaded TCG) yet.

Booting an s390x guest with -smp 2 and single threaded TCG from disk
currently fails. The DIAG 308 will issue a pause_all_cpus() and wait
forever for the CPUs to actually stop. But it is waiting for itself.

So let's stop all VCPUs belonging to the current thread. Factor out
stopping of a VCPU.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20171129191215.11323-1-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
Roman Kagan
09df29b665 hyperv: make SynIC version msr constant
The value of HV_X64_MSR_SVERSION is initialized once at vcpu init, and
is reset to zero on vcpu reset, which is wrong.

It is supposed to be a constant, so drop the field from X86CPU, set the
msr with the constant value, and don't bother getting it.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20171122181418.14180-4-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
Roman Kagan
689141dde2 hyperv: ensure SINTx msrs are reset properly
Initially SINTx msrs should be in "masked" state.  To ensure that
happens on *every* reset, move setting their values to
kvm_arch_vcpu_reset.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20171122181418.14180-3-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
Evgeny Yakovlev
da1cc323b8 hyperv: set partition-wide MSRs only on first vcpu
Hyper-V has a notion of partition-wide MSRs.  Those MSRs are read and
written as usual on each VCPU, however the hypervisor maintains a single
global value for all VCPUs.  Thus writing such an MSR from any single
VCPU affects the global value that is read by all other VCPUs.

This leads to an issue during VCPU hotplug: the zero-initialzied values
of those MSRs get synced into KVM and override the global values as has
already been set by the guest.

This change makes the partition-wide MSRs only be synchronized on the
first vcpu.

Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20171122181418.14180-2-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
Yang Zhong
aff9e6e46a x86/cpu: Enable new SSE/AVX/AVX512 cpu features
Intel IceLake cpu has added new cpu features,AVX512_VBMI2/GFNI/
VAES/VPCLMULQDQ/AVX512_VNNI/AVX512_BITALG. Those new cpu features
need expose to guest VM.

The bit definition:
CPUID.(EAX=7,ECX=0):ECX[bit 06] AVX512_VBMI2
CPUID.(EAX=7,ECX=0):ECX[bit 08] GFNI
CPUID.(EAX=7,ECX=0):ECX[bit 09] VAES
CPUID.(EAX=7,ECX=0):ECX[bit 10] VPCLMULQDQ
CPUID.(EAX=7,ECX=0):ECX[bit 11] AVX512_VNNI
CPUID.(EAX=7,ECX=0):ECX[bit 12] AVX512_BITALG

The release document ref below link:
https://software.intel.com/sites/default/files/managed/c5/15/\
architecture-instruction-set-extensions-programming-reference.pdf

Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Message-Id: <1511335676-20797-1-git-send-email-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
Fam Zheng
c2380365d1 MAITAINERS: List Fam Zheng as reviewer for SCSI patches
Just so that I notice those patches more easily.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20171205072220.885-1-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
Fam Zheng
07488549f8 scsi-block: Add share-rw option
Scsi-block doesn't use the DEFINE_BLOCK_PROPERTIES() macro so it didn't
gain the share-rw back when it was added to all other storage devices.
This option is meaningful here, and need to be used when attaching a
shared storage to guest.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20171205071928.30242-1-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-21 09:22:44 +01:00
Paolo Bonzini
2ba60ec175 contrib: add systemd unit files
This lets distros standardize on how QEMU should install systemd
services for qemu-ga and qemu-pr-helper.

The qemu-ga unit file comes from Fedora, but I checked that
Debian is using the same path for the virtio-serisal port.

I would like to include this in 2.11, so that the qemu-pr-helper
socket can be standardized across distros.  Note however that
the files are not installed.  We can add a configure option
in 2.12 perhaps, but it's too late now; documenting the files
in the release notes should do.

Suggested-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20171124164422.3960-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-20 22:29:26 +01:00
Paolo Bonzini
a4a9b6eaf3 qemu-pr-helper: miscellaneous fixes
1) Return a generic sense if TEST UNIT READY does not provide one;

2) Fix two mistakes in copying from the spec.

Cc: qemu-stable@nongnu.org
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-20 22:29:26 +01:00