Commit Graph

43937 Commits

Author SHA1 Message Date
Paolo Bonzini
1834ed3afc w32: include winsock2.h before windows.h
Recent Fedora complains while compiling ui/sdl.c:

    /usr/x86_64-w64-mingw32/sys-root/mingw/include/winsock2.h:15:2: warning: #warning Please include winsock2.h before windows.h [-Wcpp]

And with this patch we dutifully obey.

Stefan Weil:

Without that patch, windows.h will include winsock.h
(which conflicts with winsock2.h) when compiling sdl.c.

Normally we define WIN32_LEAN_AND_MEAN, and
windows.h won't include winsock.h.

include/ui/sdl2.h and ui/sdl.c undefine that macro,
so the order of the include files is important.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:47 +03:00
Daniel Serpell
91dbeeda2d Adds keycode 86 to the hid_usage_keys translation table.
This key is present in international keyboards, between left shift and
the 'Z' key, ant is described in the HID usage tables as "Keyboard
Non-US \ and |": http://www.usb.org/developers/hidpage/Hut1_12v2.pdf

This patch fixes the usb-kbd devices.

Signed-off-by: Daniel Serpell <daniel.serpell@gmail.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:47 +03:00
Michael Tokarev
6e9965d429 s390x: remove s390-zipl.rom
This is an s390 boot rom which was used in s390-virtio machine.
but since commit 3538fb6f89
"s390x: remove s390-virtio machine", this file isn't used.
The only place it is referenced in the code is an unused
define ZIPL_FILENAME.  There's also comment in hw/s390/ipl.c
which I'm modifying too, to refer to s390-ccw.img instead.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-02-11 15:15:47 +03:00
Cao jin
059db20419 Passthru CCID card: QOMify
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:47 +03:00
Cao jin
35997599aa Emulated CCID card: QOMify
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:46 +03:00
Cao jin
0d769044d6 ES1370: QOMify
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:46 +03:00
Daniel P. Berrange
0850d49cb6 char: fix parameter name / type in BSD codepath
The BSD impl of qemu_chr_open_pp_fd had mis-declared
its parameter type as ChardevBackend instead of
ChardevCommon. It had also mistakenly used the variable
name 'common' instead of 'backend'.

Tested-by: Sean Bruno <sbruno@freebsd.org>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:46 +03:00
Wei Yang
190f34f81e qmp-spec: fix index in doc
The index is duplicated. Just change it.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:46 +03:00
Wei Yang
5b648de0ee rdma: remove check on time_spent when calculating mbs
Within the if statement, time_spent is assured to be non-zero.

This patch just removes the check on time_spent when calculating mbs.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:46 +03:00
Paolo Bonzini
58c652c08a qemu-sockets: simplify error handling
Just go always through the err label.  (Noticed because Coverity
complains that peer is always non-NULL in the error cleanup code,
but removing the "if" is arguably more prone to introducing the
opposite bug in the future).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:46 +03:00
Paolo Bonzini
945123a554 cpu: cpu_save/cpu_load is no more
Everything has been converted to vmstate.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:46 +03:00
Alistair Francis
b29b47e9b3 qom: Correct object_property_get_int() description
The description of object_property_get_int() stated that on an error
it returns NULL. This is not the case and the function will return -1
if an error occurs. Update the commented documentation accordingly.

Reported-By: Christian Liebhardt <christian.liebhardt@keysight.com>
Signed-off-by: Christian Liebhardt <christian.liebhardt@keysight.com>
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:46 +03:00
Christophe Fergeau
b8d8e8fde3 man: virtfs-proxy-helper: Rework awkward sentence
There was a 'capbilities' typo in this man page. This commit
reformulates the sentence the typo was in to make it easier to grasp.
This is based on a suggestion from Eric Blake.

Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-11 15:15:46 +03:00
Michael Tokarev
e999ee4434 remove libtool support
Libtool support was needed to build shared library for libcacard.
Now there's no need to use libtool, and since the build system is
already complicated enough, we have a way to slightly de-complicate
it.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
2016-02-11 15:15:46 +03:00
Paolo Bonzini
88c73d16ad memory: fix usage of find_next_bit and find_next_zero_bit
The last two arguments to these functions are the last and first bit to
check relative to the base.  The code was using incorrectly the first
bit and the number of bits.  Fix this in cpu_physical_memory_get_dirty
and cpu_physical_memory_all_dirty.  This requires a few changes in the
iteration; change the code in cpu_physical_memory_set_dirty_range to
match.

Fixes: 5b82b70
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Leon Alrae <leon.alrae@imgtec.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-id: 1455113505-11237-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-10 22:38:24 +00:00
Peter Maydell
c9f19dff10 * switch to C11 atomics (Alex)
* Coverity fixes for IPMI (Corey), i386 (Paolo), qemu-char (Paolo)
 * at long last, fail on wrong .pc files if -m32 is in use (Daniel)
 * qemu-char regression fix (Daniel)
 * SAS1068 device (Paolo)
 * memory region docs improvements (Peter)
 * target-i386 cleanups (Richard)
 * qemu-nbd docs improvements (Sitsofe)
 * thread-safe memory hotplug (Stefan)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* switch to C11 atomics (Alex)
* Coverity fixes for IPMI (Corey), i386 (Paolo), qemu-char (Paolo)
* at long last, fail on wrong .pc files if -m32 is in use (Daniel)
* qemu-char regression fix (Daniel)
* SAS1068 device (Paolo)
* memory region docs improvements (Peter)
* target-i386 cleanups (Richard)
* qemu-nbd docs improvements (Sitsofe)
* thread-safe memory hotplug (Stefan)

# gpg: Signature made Tue 09 Feb 2016 16:09:30 GMT using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"

* remotes/bonzini/tags/for-upstream: (33 commits)
  qemu-char, io: fix ordering of arguments for UDP socket creation
  MAINTAINERS: add all-match entry for qemu-devel@
  get_maintainer.pl: fall back to git if only lists are found
  target-i386: fix PSE36 mode
  docs/memory.txt: Improve list of different memory regions
  ipmi_bmc_sim: Add break to correct watchdog NMI check
  ipmi_bmc_sim: Fix off by one in check.
  ipmi: do not take/drop iothread lock
  target-i386: Deconstruct the cpu_T array
  target-i386: Tidy gen_add_A0_im
  target-i386: Rewrite leave
  target-i386: Rewrite gen_enter inline
  target-i386: Use gen_lea_v_seg in pusha/popa
  target-i386: Access segs via TCG registers
  target-i386: Use gen_lea_v_seg in stack subroutines
  target-i386: Use gen_lea_v_seg in gen_lea_modrm
  target-i386: Introduce mo_stacksize
  target-i386: Create gen_lea_v_seg
  char: fix repeated registration of tcp chardev I/O handlers
  kvm-all: trace: strerror fixup
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-09 19:34:46 +00:00
Peter Maydell
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

# gpg: Signature made Tue 09 Feb 2016 15:11:25 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/block-pull-request:
  block: add missing call to bdrv_drain_recurse
  blockjob: Fix hang in block_job_finish_sync
  iov: avoid memcpy for "simple" iov_from_buf/iov_to_buf

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-09 17:56:46 +00:00
Paolo Bonzini
150dcd1aed qemu-char, io: fix ordering of arguments for UDP socket creation
Two wrongs make a right, but they should be fixed anyway.

Cc: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1455015557-15106-1-git-send-email-pbonzini@redhat.com>
2016-02-09 17:09:15 +01:00
Peter Maydell
84c0781103 Error reporting patches for 2016-02-09
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Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2016-02-09' into staging

Error reporting patches for 2016-02-09

# gpg: Signature made Tue 09 Feb 2016 12:38:33 GMT using RSA key ID EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"

* remotes/armbru/tags/pull-error-2016-02-09:
  HACKING: Add a section on error handling and reporting
  error: Improve documentation some more
  Use error_fatal to simplify obvious fatal errors (again)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-09 16:09:15 +00:00
Stephen Warren
c9a19d5b95 MAINTAINERS: add all-match entry for qemu-devel@
Add an entry to MAINTAINERS that matches every patch, and requests the
user send patches to qemu-devel@nongnu.org.

It's not 100% obvious to project newcomers that all patches should be sent
there; checkpatch doesn't say so, and since it mentions other lists to CC,
the wording "the list" from the SubmitAPatch wiki page can be taken
to mean only those lists, not the main list too.

The F: entries were taken from a similar entry in the Linux kernel.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Message-Id: <1454987065-12961-1-git-send-email-swarren@wwwdotorg.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 17:08:56 +01:00
Paolo Bonzini
4db84796e7 get_maintainer.pl: fall back to git if only lists are found
It's not 100% obvious to project newcomers that all patches should be sent
there; checkpatch doesn't say so, and since it mentions other lists to CC,
the wording "the list" from the SubmitAPatch wiki page can be taken
to mean only those lists, not the main list too.  We would like therefore
to add a catch-all entry for qemu-devel@nongnu.org.

On its own, this would break fallback to git, because now every file
has a maintainer of sorts.  Modify get_maintainer.pl so that mailing
lists (L: lines) no longer prevent the fallback, only humans (M:
entries).

Several pre-existing entries have a list but no human.  These now
fall back to git.  That's a feature.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Message-Id: <1454987065-12961-1-git-send-email-swarren@wwwdotorg.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 17:07:55 +01:00
Paolo Bonzini
388ee48a88 target-i386: fix PSE36 mode
(pde & 0x1fe000) is a 32-bit integer; when shifting it
into bits 39-32 the result is zero.  Fix it by making the
mask (and thus the result of the AND) a 64-bit integer.

Reported by Coverity.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:46:55 +01:00
Peter Maydell
5056c0c3de docs/memory.txt: Improve list of different memory regions
Improve the part of the memory region documentation which describes
the various different kinds of memory region:
 * add the missing types ROM, IOMMU and reservation
 * mention the functions used to initialize each type, as a hint
   for finding the API docs and examples of use

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1454007297-3971-1-git-send-email-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:46:55 +01:00
Corey Minyard
37eebb8693 ipmi_bmc_sim: Add break to correct watchdog NMI check
It was falling through when it should have been a break.  Found by
Coverity.  The logic could be simplified a bit with a fallthrough,
probably the original thought, but that would be less clear, I think.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Shannon Zhao <zhaoshenglong@huawei.com>
Cc: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Message-Id: <1452519152-6500-3-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:46:54 +01:00
Corey Minyard
93a5364620 ipmi_bmc_sim: Fix off by one in check.
Found by Paolo.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Shannon Zhao <zhaoshenglong@huawei.com>
Cc: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Message-Id: <1452519152-6500-2-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:46:54 +01:00
Paolo Bonzini
ac5e8acdae ipmi: do not take/drop iothread lock
This is not necessary and actually causes a hang; it was probably copied
and pasted from KVM code, that is one of the very few places that run
outside iothread lock.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:46:54 +01:00
Richard Henderson
1d1cc4d0f4 target-i386: Deconstruct the cpu_T array
All references to cpu_T are done with a constant index.  It aids
readability to decompose the array into two scalar variables.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1436426122-12276-11-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:46:54 +01:00
Richard Henderson
4e85057b92 target-i386: Tidy gen_add_A0_im
Merge gen_op_addl_A0_im and gen_op_addq_A0_im into gen_add_A0_im
and clean up the ifdef.

Replace the one remaining user of gen_op_addl_A0_im with gen_add_A0_im.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-10-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:46:54 +01:00
Richard Henderson
2045f04c3a target-i386: Rewrite leave
Unify the code across stack pointer widths.  Fix the note about
not updating ESP before the potential exception.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-9-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:46:54 +01:00
Richard Henderson
743e398e2f target-i386: Rewrite gen_enter inline
Use gen_lea_v_seg for centralized segment base knowledge.  Unify
code across 32- and 64-bit.  Fix note about "must save state"
before using the out-of-line helpers.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-8-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:46:54 +01:00
Richard Henderson
d37ea0c047 target-i386: Use gen_lea_v_seg in pusha/popa
More centralization of handling of segment bases.
Also fixes the note about 16-bit wrap around not fully handled.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-7-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:46:54 +01:00
Richard Henderson
3558f8055f target-i386: Access segs via TCG registers
Having segs[].base as a register significantly improves code
generation for real and protected modes, particularly for TBs
that have multiple memory references where the segment base
can be held in a hard register through the TB.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-6-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:46:52 +01:00
Richard Henderson
77ebcad04f target-i386: Use gen_lea_v_seg in stack subroutines
I.e. gen_push_v, gen_pop_T0, gen_stack_A0.
More centralization of handling of segment bases.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-5-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:27 +01:00
Richard Henderson
d6a2914984 target-i386: Use gen_lea_v_seg in gen_lea_modrm
Centralize handling of segment bases.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-4-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:27 +01:00
Richard Henderson
64ae256c24 target-i386: Introduce mo_stacksize
Centralize computation of a MO_SIZE for the stack pointer.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-3-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:27 +01:00
Richard Henderson
ca2f29f555 target-i386: Create gen_lea_v_seg
Add forgotten zero-extension in the TARGET_X86_64, !CODE64, ss32 case;
use this new function to implement gen_string_movl_A0_EDI,
gen_string_movl_A0_ESI, gen_add_A0_ds_seg.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-2-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Daniel P. Berrange
1e94f23d82 char: fix repeated registration of tcp chardev I/O handlers
In previous commit:

  commit f2001a7e05
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Tue Jan 19 11:14:30 2016 +0000

    char: don't assume telnet initialization will not block

The code which writes the telnet initialization sequence moved
to an event loop callback. If the TCP chardev is opened as a
server in blocking mode (ie -serial telnet:0.0.0.0:3000,server,wait)
this results in a state where the TCP chardev is connected, but not
yet ready to send/recv data when virtual hardware is created.

When the virtual hardware initialization registers its chardev
callbacks, it triggers tcp_chr_update_read_handler, which will
add I/O watches to the connection.

When the telnet initialization finally runs, it will then call
tcp_chr_connect to finish the connection setup. This will in
turn add I/O watches to the connection too.

There are now two sets of I/O watches registered on the same
connection. This ultimately causes data loss on the connection,
for example, when typing into the telnet console only every
second byte is echoed back to the client.

The same flaw can affect channels running with TLS encryption
too, since they also have delayed connection setup completion.

The fix is to update tcp_chr_update_read_handler so that it
avoids registering watches if the connection is not fully
setup yet.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1454939707-10869-1-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Andrew Jones
844a3d34d6 kvm-all: trace: strerror fixup
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-Id: <1454355464-14999-1-git-send-email-drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
John Snow
667ad26ff8 nbd: avoid unaligned uint64_t store
cpu_to_be64w can't be used to make unaligned stores, but stq_be_p can.
Also, the st?_be_p takes a void* so it is more clearly suited to the
case where you're writing into a byte buffer.

Use the st?_be_p family of functions everywhere in nbd/server.c.

Signed-off-by: John Snow <jsnow@redhat.com>
[Changed to use st?_be_p everywhere. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Janosch Frank
e3dd68df52 scripts/kvm/kvm_stat: Fix tracefs access checking
On kernels build without CONFIG_TRACING kvm_stat will bail out even
when traces are not used. This is not very helpful, especially if the
user can't install a new kernel. Instead, we should warn the user and
fall back to debugfs statistics.

These changes check if trace statistics were selected without kernel
support, warn with a small timeout, set the debugfs statistics option
to True and the tracefs one to False.

Fixes: 7aa4ee5 ('scripts/kvm/kvm_stat: Improve debugfs access checking')
Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Message-Id: <1454485291-43849-2-git-send-email-frankja@linux.vnet.ibm.com>
[Exit if -t is passed explicitly. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Sitsofe Wheeler
5090121845 qemu-nbd: Fix texi sentence capitalisation
Capitalise the first letter of sentences (and reword for grammar) the
options section of qemu-nbd.texi.

Signed-off-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Message-Id: <1451979212-25479-4-git-send-email-sitsofe@yahoo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Sitsofe Wheeler
7e8911bb40 qemu-nbd: Minor texi updates
- Change some spacing.
- Add disconnect usage to synopsis.
- Highlight the command and its options in the synopsis.
- Fix up the grammar in the description.
- Move filename variable description out of the option table.
- Add a description of the dev variable.
- Remove duplicate entry for --format.
- Reword --discard documentation.
- Add --detect-zeroes documentation.
- Add reference to qemu man page to see also section.

Signed-off-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Message-Id: <1451979212-25479-3-git-send-email-sitsofe@yahoo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Sitsofe Wheeler
b9dbb61757 qemu-nbd: Fix unintended texi verbatim formatting
Indented lines in the texi meant the perlpod produced interpreted the
paragraph as being verbatim (thus formatting codes were not
interpreted). Fix this by un-indenting problem lines.

Signed-off-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Message-Id: <1451979212-25479-2-git-send-email-sitsofe@yahoo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Paolo Bonzini
e351b82611 hw: Add support for LSI SAS1068 (mptsas) device
This adds the SAS1068 device, a SAS disk controller used in VMware that
is oldish but widely supported and has decent performance.  Unlike
megasas, it presents itself as a SAS controller and not as a RAID
controller.  The device corresponds to the mptsas kernel driver in
Linux.

A few small things in the device setup are based on Don Slutz's old
patch, but the device emulation was written from scratch based on Don's
SeaBIOS patch and on the FreeBSD and Linux drivers.  It is 2400 lines
shorter than Don's patch (and roughly the same size as MegaSAS---also
because it doesn't support the similar SPI controller), implements SCSI
task management functions (with asynchronous cancellation), supports
big-endian hosts, has complete support for migration and follows the
QEMU coding standards much more closely.

To write the driver, I first split Don's patch in two parts, with
the configuration bits in one file and the rest in a separate file.
I first left mptconfig.c in place and rewrote the rest, then deleted
mptconfig.c as well.  The configuration pages are still based mostly on
VirtualBox's, though not exactly the same.  However, the implementation
is completely different.  The contents of the pages themselves should
not be copyrightable.

Signed-off-by: Don Slutz <Don@CloudSwitch.com>
Message-Id: <1347382813-5662-1-git-send-email-Don@CloudSwitch.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Paolo Bonzini
9fd7e85938 scsi-generic: grab device and port SAS addresses from backend
This lets a SAS adapter expose them through its own configuration
mechanism.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Paolo Bonzini
2ecab4084f scsi: push WWN fields up to SCSIDevice
SAS adapters need to access them in order to publish the SAS addresses
of the end devices connected to them.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Alex Bennée
a0aa44b488 include/qemu/atomic.h: default to __atomic functions
The __atomic primitives have been available since GCC 4.7 and provide
a richer interface for describing memory ordering requirements. As a
bonus by using the primitives instead of hand-rolled functions we can
use tools such as the ThreadSanitizer which need the use of well
defined APIs for its analysis.

If we have __ATOMIC defines we exclusively use the __atomic primitives
for all our atomic access. Otherwise we fall back to the mixture of
__sync and hand-rolled barrier cases.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <1453976119-24372-4-git-send-email-alex.bennee@linaro.org>
[Use __ATOMIC_SEQ_CST for atomic_mb_read/atomic_mb_set on !POWER. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Daniel P. Berrange
977a82ab56 configure: sanity check the glib library that pkg-config finds
Developers on 64-bit machines will often try to perform a
32-bit build of QEMU by running

  ./configure --extra-cflags="-m32"

Unfortunately if PKG_CONFIG_LIBDIR is not set to point to
the location of the 32-bit pkg-config files, then configure
will silently pick up the 64-bit pkg-config files and still
succeed.

This causes a problem for glib because it means QEMU will
be pulling in /usr/lib64/glib-2.0/include/glibconfig.h
instead of /usr/lib/glib-2.0/include/glibconfig.h

This causes problems because the 'gsize' type (defined as
'unsigned long') will no longer be fully compatible with
the 'size_t' type (defined as 'unsigned int'). Although
both are the same size, the compiler refuses to allow
casts from 'unsigned long *' to 'unsigned int *' as they
are different pointer types. This results in non-obvious
compiler errors when building QEMU eg

qga/commands-posix.c: In function ‘qmp_guest_set_user_password’:
qga/commands-posix.c:1912:55: error: passing argument 2 of ‘g_base64_decode’ from incompatible pointer type [-Werror=incompatible-pointer-types]
     rawpasswddata = (char *)g_base64_decode(password, &rawpasswdlen);
                                                            ^
In file included from /usr/include/glib-2.0/glib.h:35:0,
                 from qga/commands-posix.c:14:
/usr/include/glib-2.0/glib/gbase64.h:52:9: note: expected ‘gsize * {aka long unsigned int *}’ but argument is of type ‘size_t * {aka unsigned int *}’
 guchar *g_base64_decode         (const gchar  *text,
         ^
cc1: all warnings being treated as errors

To detect this problem, add a check to configure that
verifies that GLIB_SIZEOF_SIZE_T matches sizeof(size_t).
If this fails print a warning suggesting that the dev
probably needs to set PKG_CONFIG_LIBDIR.

On Fedora x86_64 it passes with any of:

 # ./configure
 # PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig ./configure --extra-cflags="-m32"
 # PKG_CONFIG_LIBDIR=/usr/lib64/pkgconfig ./configure --extra-cflags="-m64"

And fails with a mis-match

 # PKG_CONFIG_LIBDIR=/usr/lib64/pkgconfig ./configure --extra-cflags="-m32"
 # PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig ./configure --extra-cflags="-m64"

ERROR: sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T.
       You probably need to set PKG_CONFIG_LIBDIR
       to point to the right pkg-config files for your
       build target

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1453885245-15562-1-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Paolo Bonzini
34689e206a qemu-char: Keep pty slave file descriptor open until the master is closed
If a process opens the slave pts device, writes data to it, then
immediately closes it, the data doesn't reliably get delivered to the
emulated serial port. This seems to be because a read of the master
pty device returns EIO on Linux if no process has the pts device open,
even when data is waiting "in the pipe".

A fix seems to be for QEMU to keep the pts file descriptor open until
the pty is closed, as per the below patch.

Signed-off-by: Ashley Jonathan <jonathan.ashley@altran.com>
Message-Id: <AC19797808C8D548ABDE0CA4A97AA30A30DEB409@XMB-DCFR-37.europe.corp.altran.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00
Stefan Hajnoczi
5b82b703b6 memory: RCU ram_list.dirty_memory[] for safe RAM hotplug
Although accesses to ram_list.dirty_memory[] use atomics so multiple
threads can safely dirty the bitmap, the data structure is not fully
thread-safe yet.

This patch handles the RAM hotplug case where ram_list.dirty_memory[] is
grown.  ram_list.dirty_memory[] is change from a regular bitmap to an
RCU array of pointers to fixed-size bitmap blocks.  Threads can continue
accessing bitmap blocks while the array is being extended.  See the
comments in the code for an in-depth explanation of struct
DirtyMemoryBlocks.

I have tested that live migration with virtio-blk dataplane works.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <1453728801-5398-2-git-send-email-stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09 15:45:26 +01:00