Commit Graph

20 Commits

Author SHA1 Message Date
Beata Michalska 61c490e25e Memory: Enable writeback for given memory region
Add an option to trigger memory writeback to sync given memory region
with the corresponding backing store, case one is available.
This extends the support for persistent memory, allowing syncing on-demand.

Signed-off-by: Beata Michalska <beata.michalska@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20191121000843.24844-3-beata.michalska@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-12-16 10:46:35 +00:00
Philippe Mathieu-Daudé 31e404151b cutils: Move size_to_str() from "qemu-common.h" to "qemu/cutils.h"
"qemu/cutils.h" contains various qemu_strtosz_*() functions
useful to convert strings to size. It seems natural to have
the opposite usage (from size to string) there too.

The function definition is already in util/cutils.c.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20190903120555.7551-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-09-19 11:57:34 +02:00
Markus Armbruster 15ce35fcf1 include: Include fprintf-fn.h only where needed
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417191805.28198-2-armbru@redhat.com>
2019-04-18 22:18:59 +02:00
David Hildenbrand af02f4c517 cutils: Fix qemu_strtosz() & friends to reject non-finite sizes
qemu_strtosz() & friends reject NaNs, but happily accept infinities.
They shouldn't. Fix that.

The fix makes use of qemu_strtod_finite(). To avoid ugly casts,
change the @end parameter of qemu_strtosz() & friends from char **
to const char **.

Also, add two test cases, testing that "inf" and "NaN" are properly
rejected. While at it, also fixup the function documentation.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20181121164421.20780-3-david@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13 19:10:06 +01:00
David Hildenbrand ca28f54816 cutils: Add qemu_strtod() and qemu_strtod_finite()
Let's provide a wrapper for strtod().

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20181121164421.20780-2-david@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13 19:10:06 +01:00
Marc-André Lureau 85e33a2818 cutils: add qemu_pstrcmp0()
A char** variant of g_strcmp0().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
2018-10-05 16:14:22 +04:00
Philippe Mathieu-Daudé af5ecb4739 cutils: Do not include "qemu/units.h" directly
All files using "qemu/units.h" definitions already include it directly,
we can now remove it from "qemu/cutils.h".

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Message-Id: <20180625124238.25339-41-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-02 15:41:17 +02:00
Philippe Mathieu-Daudé d23b6caadb hw: Use IEC binary prefix definitions from "qemu/units.h"
Code change produced with:

  $ git ls-files | egrep '\.[ch]$' | \
    xargs sed -i -e 's/\(\W[KMGTPE]\)_BYTE/\1iB/g'

Suggested-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au> (ppc parts)
Message-Id: <20180625124238.25339-6-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-02 15:41:10 +02:00
Keno Fischer 5c99fa375d cutils: Provide strchrnul
strchrnul is a GNU extension and thus unavailable on a number of targets.
In the review for a commit removing strchrnul from 9p, I was asked to
create a qemu_strchrnul helper to factor out this functionality.
Do so, and use it in a number of other places in the code base that inlined
the replacement pattern in a place where strchrnul could be used.

Signed-off-by: Keno Fischer <keno@juliacomputing.com>
Acked-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
2018-06-29 12:32:10 +02:00
Daniel P. Berrange 473a2a331e cutils: add qemu_strtoi & qemu_strtoui parsers for int/unsigned int types
There are qemu_strtoNN functions for various sized integers. This adds two
more for plain int & unsigned int types, with suitable range checking.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-03-13 18:06:05 +00:00
Markus Armbruster f46bfdbfc8 util/cutils: Change qemu_strtosz*() from int64_t to uint64_t
This will permit its use in parse_option_size().

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com> (maintainer:X86)
Cc: Kevin Wolf <kwolf@redhat.com> (supporter:Block layer core)
Cc: Max Reitz <mreitz@redhat.com> (supporter:Block layer core)
Cc: qemu-block@nongnu.org (open list:Block layer core)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1487708048-2131-24-git-send-email-armbru@redhat.com>
2017-02-23 20:35:36 +01:00
Markus Armbruster f17fd4fdf0 util/cutils: Return qemu_strtosz*() error and value separately
This makes qemu_strtosz(), qemu_strtosz_mebi() and
qemu_strtosz_metric() similar to qemu_strtoi64(), except negative
values are rejected.

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com> (maintainer:X86)
Cc: Kevin Wolf <kwolf@redhat.com> (supporter:Block layer core)
Cc: Max Reitz <mreitz@redhat.com> (supporter:Block layer core)
Cc: qemu-block@nongnu.org (open list:Block layer core)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1487708048-2131-23-git-send-email-armbru@redhat.com>
2017-02-23 20:35:36 +01:00
Markus Armbruster 466dea14e6 util/cutils: New qemu_strtosz()
Most callers of qemu_strtosz_suffix() pass QEMU_STRTOSZ_DEFSUFFIX_B.
Capture the pattern in new qemu_strtosz().

Inline qemu_strtosz_suffix() into its only remaining caller.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-17-git-send-email-armbru@redhat.com>
2017-02-23 20:35:36 +01:00
Markus Armbruster e591591b32 util/cutils: Rename qemu_strtosz() to qemu_strtosz_MiB()
With qemu_strtosz(), no suffix means mebibytes.  It's used rarely.
I'm going to add a similar function where no suffix means bytes.
Rename qemu_strtosz() to qemu_strtosz_MiB() to make the name
qemu_strtosz() available for the new function.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-16-git-send-email-armbru@redhat.com>
2017-02-23 20:35:36 +01:00
Markus Armbruster d2734d2629 util/cutils: New qemu_strtosz_metric()
To parse numbers with metric suffixes, we use

    qemu_strtosz_suffix_unit(nptr, &eptr, QEMU_STRTOSZ_DEFSUFFIX_B, 1000)

Capture this in a new function for legibility:

    qemu_strtosz_metric(nptr, &eptr)

Replace test_qemu_strtosz_suffix_unit() by test_qemu_strtosz_metric().

Rename qemu_strtosz_suffix_unit() to do_strtosz() and give it internal
linkage.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-15-git-send-email-armbru@redhat.com>
2017-02-23 20:35:36 +01:00
Markus Armbruster b30d188677 util/cutils: Rename qemu_strtoll(), qemu_strtoull()
The name qemu_strtoll() suggests conversion to long long, but it
actually converts to int64_t.  Rename to qemu_strtoi64().

The name qemu_strtoull() suggests conversion to unsigned long long,
but it actually converts to uint64_t.  Rename to qemu_strtou64().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1487708048-2131-7-git-send-email-armbru@redhat.com>
2017-02-23 20:35:35 +01:00
Richard Henderson efad668245 cutils: Add test for buffer_is_zero
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1472496380-19706-6-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13 19:13:32 +02:00
Richard Henderson a1febc4950 cutils: Export only buffer_is_zero
Since the two users don't make use of the returned offset,
beyond ensuring that the entire buffer is zero, consider the
can_use_buffer_find_nonzero_offset and buffer_find_nonzero_offset
functions internal.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1472496380-19706-4-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13 19:09:45 +02:00
Markus Armbruster 175de52487 Clean up decorations and whitespace around header guards
Cleaned up with scripts/clean-header-guards.pl.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-07-12 16:20:46 +02:00
Veronia Bahaa f348b6d1a5 util: move declarations out of qemu-common.h
Move declarations out of qemu-common.h for functions declared in
utils/ files: e.g. include/qemu/path.h for utils/path.c.
Move inline functions out of qemu-common.h and into new files (e.g.
include/qemu/bcd.h)

Signed-off-by: Veronia Bahaa <veroniabahaa@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22 22:20:17 +01:00