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  1. 31 10月, 2016 1 次提交
  3. 28 10月, 2016 3 次提交
  5. 25 10月, 2016 1 次提交
  7. 24 10月, 2016 4 次提交
  9. 08 10月, 2016 1 次提交
  11. 07 10月, 2016 4 次提交
  13. 04 10月, 2016 2 次提交
    • M
      util: Introduce qemu_get_pid_name · 7dc9ae43
      由 Michal Privoznik 提交于 
      This is a small helper that tries to fetch binary name for given
PID.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Message-Id: <4d75d475c1884f8e94ee8b1e57273ddf3ed68bf7.1474987617.git.mprivozn@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      7dc9ae43
    • A
      util/qht: atomically set b->hashes · a8906439
      由 Alex Bennée 提交于 
      ThreadSanitizer detects a possible race between reading/writing the
hashes. The ordering semantics are already documented for QHT however
for true C11 compliance we should use relaxed atomic primitives for
accesses that are done across threads. On x86 this slightly changes to
the code to not do a load/compare in a single instruction leading to a
slight performance degradation.

Running 'taskset -c 0 tests/qht-bench -n 1 -d 10' (i.e. all lookups) 10
times, we get:

before the patch:
 $ ./mean.pl 34.04 34.24 34.38 34.25 34.18 34.51 34.46 34.44 34.29 34.08
 34.287 +- 0.160072900059109
after:
 $ ./mean.pl 33.94 34.00 33.52 33.46 33.55 33.71 34.27 34.06 34.28 34.58
 33.937 +- 0.374731014640279
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NEmilio G. Cota <cota@braap.org>
Message-Id: <20160930213106.20186-10-alex.bennee@linaro.org>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      a8906439
  15. 29 9月, 2016 9 次提交
  17. 23 9月, 2016 4 次提交
    • F
      uuid: Tighten uuid parse · 0d6ae947
      由 Fam Zheng 提交于 
      sscanf is relatively loose (tolerate) on some invalid formats that we
should fail instead of generating a wrong uuid structure, like with
whitespaces and short strings.

Add and use a helper function to first check the format.
Signed-off-by: NFam Zheng <famz@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Reviewed-by: NJeff Cody <jcody@redhat.com>
Message-Id: <1474432046-325-11-git-send-email-famz@redhat.com>
      0d6ae947
    • F
      vl: Switch qemu_uuid to QemuUUID · 9c5ce8db
      由 Fam Zheng 提交于 
      Update all qemu_uuid users as well, especially get rid of the duplicated
low level g_strdup_printf, sscanf and snprintf calls with QEMU UUID API.

Since qemu_uuid_parse is quite tangled with qemu_uuid, its switching to
QemuUUID is done here too to keep everything in sync and avoid code
churn.
Signed-off-by: NFam Zheng <famz@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Reviewed-by: NJeff Cody <jcody@redhat.com>
Message-Id: <1474432046-325-10-git-send-email-famz@redhat.com>
      9c5ce8db
    • F
      uuid: Make null_uuid static · 3630be75
      由 Fam Zheng 提交于 
      So that it doesn't have to be zeroed at each call.
Suggested-by: NEric Blake <eblake@redhat.com>
Signed-off-by: NFam Zheng <famz@redhat.com>
Reviewed-by: NJeff Cody <jcody@redhat.com>
Message-Id: <1474432046-325-3-git-send-email-famz@redhat.com>
      3630be75
    • F
      util: Add UUID API · cea25275
      由 Fam Zheng 提交于 
      A number of different places across the code base use CONFIG_UUID. Some
of them are soft dependency, some are not built if libuuid is not
available, some come with dummy fallback, some throws runtime error.

It is hard to maintain, and hard to reason for users.

Since UUID is a simple standard with only a small number of operations,
it is cleaner to have a central support in libqemuutil. This patch adds
qemu_uuid_* functions that all uuid users in the code base can
rely on. Except for qemu_uuid_generate which is new code, all other
functions are just copy from existing fallbacks from other files.

Note that qemu_uuid_parse is moved without updating the function
signature to use QemuUUID, to keep this patch simple.
Signed-off-by: NFam Zheng <famz@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Reviewed-by: NJeff Cody <jcody@redhat.com>
Message-Id: <1474432046-325-2-git-send-email-famz@redhat.com>
      cea25275
  19. 21 9月, 2016 1 次提交
    • M
      blockdev: Add dynamic module loading for block drivers · 88d88798
      由 Marc Mari 提交于 
      Extend the current module interface to allow for block drivers to be
loaded dynamically on request. The only block drivers that can be
converted into modules are the drivers that don't perform any init
operation except for registering themselves.

In addition, only the protocol drivers are being modularized, as they
are the only ones which see significant performance benefits. The format
drivers do not generally link to external libraries, so modularizing
them is of no benefit from a performance perspective.

All the necessary module information is located in a new structure found
in module_block.h

This spoils the purpose of 5505e8b7 (block/dmg: make it modular).

Before this patch, if module build is enabled, block-dmg.so is linked to
libbz2, whereas the main binary is not. In downstream, theoretically, it
means only the qemu-block-extra package depends on libbz2, while the
main QEMU package needn't to. With this patch, we (temporarily) change
the case so that the main QEMU depends on libbz2 again.
Signed-off-by: NMarc Marí <markmb@redhat.com>
Signed-off-by: NColin Lord <clord@redhat.com>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Message-id: 1471008424-16465-4-git-send-email-clord@redhat.com
Reviewed-by: NMax Reitz <mreitz@redhat.com>
[mreitz: Do a signed comparison against the length of
 block_driver_modules[], so it will not cause a compile error when
 empty]
Signed-off-by: NMax Reitz <mreitz@redhat.com>
      88d88798
  21. 15 9月, 2016 1 次提交
    • D
      log: fix parsing of multiple trace:PATTERN log args · 89d0a64f
      由 Daniel P. Berrange 提交于 
      If giving QEMU a log arg which asks to enable multiple
different trace event patterns such as

  $QEMU -d trace:qio*,trace:qcrypto*

the parser will then invoke

  trace_enable_events("qio*,trace:qcrypto*")
  trace_enable_events("qcrypto*")

as when finding a 'trace:' prefix, it is not clever
enough to strip anything after the next comma. As
a result only the last 'trace:' match ever works.

Rather than trying to be more clever with parsing the
command line arg in place, simplify the code by
using g_strsplit to break it into individual strings
on ','. These resulting pieces can be directly used
without worrying about trailing data from the next
option.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Message-Id: <1473186343-16704-1-git-send-email-berrange@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      89d0a64f
  23. 14 9月, 2016 9 次提交