src/include, branch upstream/10.4.0

MFC r318780:

2017-06-07T11:43:36Z

Use __BSD_VISIBLE test instead checking for absense of _POSIX_SOURCE.

MFC: r292180 (partial), r297127 (partial), r311911, r311923, r312939,

2017-05-11T21:01:02Z

r313250, r313712, r314811 (partial), r314887 (partial), r315430, r317981, r315466 o Move the DRIVER_MODULE() statements that declare mmc(4) to be a child of the various bridge drivers out of dev/mmc.c and into the bridge drivers. o Add ACPI platform support for SDHCI driver. o Fix some overly long lines, whitespace and other bugs according to style(9) as well as spelling etc. in mmc(4), mmcsd(4) and sdhci(4). o In the mmc(4) bridges and sdhci(4) (bus) front-ends: - Remove redundant assignments of the default bus_generic_print_child device method, - use DEVMETHOD_END, - use NULL instead of 0 for pointers. o Trim/adjust includes. o Add and use a MMC_DECLARE_BRIDGE macro for declaring mmc(4) bridges as kernel drivers and their dependency onto mmc(4). o Add support for eMMC "partitions". Besides the user data area, i. e. the default partition, eMMC v4.41 and later devices can additionally provide up to: 1 enhanced user data area partition 2 boot partitions 1 RPMB (Replay Protected Memory Block) partition 4 general purpose partitions (optionally with a enhanced or extended attribute) Besides simply subdividing eMMC devices, some Intel NUCs having UEFI code in the boot partitions etc., another use case for the partition support is the activation of pseudo-SLC mode, which manufacturers of eMMC chips typically associate with the enhanced user data area and/ or the enhanced attribute of general purpose partitions. CAVEAT EMPTOR: Partitioning eMMC devices is a one-time operation. o Now that properly issuing CMD6 is crucial (so data isn't written to the wrong partition for example), make a step into the direction of correctly handling the timeout for these commands in the MMC layer. Also, do a SEND_STATUS when CMD6 is invoked with an R1B response as recommended by relevant specifications. o Add an IOCTL interface to mmcsd(4); this is sufficiently compatible with Linux so that the GNU mmc-utils can be ported to and used with FreeBSD (note that due to the remaining deficiencies outlined above SANITIZE operations issued by/with `mmc` currently most likely will fail). These latter have been added to ports as sysutils/mmc-utils. Among others, the `mmc` tool of mmc-utils allows for partitioning eMMC devices (tested working). o For devices following the eMMC specification v4.41 or later, year 0 is 2013 rather than 1997; so correct this for assembling the device ID string properly. o Let mmcsd.ko depend on mmc.ko. Additionally, bump MMC_VERSION as at least for some of the above a matching pair is required.

MFC r291310:

2017-04-13T19:48:45Z

Stop building vers.c in include/ and only build the needed osreldate.h. Because of how osreldate.h was being built with newvers.sh, which always spat out a vers.c dependent on SVN or git, the meta mode build was considering osreldate.h to depend on the current git or SVN index. This would lead to entire tree rebuilds when modifying git's index. There's no reason to be generating vers.c here so just skip it. While here, in mk-osreldate.sh rename PARAM_H to proper PARAMFILE (which newvers.sh already has a default for) and remove unneeded export. Sponsored by: EMC / Isilon Storage Division

MFC r313819:

2017-02-19T21:10:34Z

Remove outdated claim. Despite wishful thinking the removal of these old functions hasn't happened yet.

MFC r310630: libkvm: support access to vmm guest memory, allow writes to

2017-01-18T14:14:00Z

fwmem and vmm Sponsored by: Panzura

MFC 310048,310101

2017-01-04T01:58:38Z

310048 hyperv: Implement "enlightened" time counter, which is rdtsc based. Reviewed by: kib Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8763 310101 hyperv: Allow userland to ro-mmap reference TSC page This paves way to implement VDSO for the enlightened time counter. Reviewed by: kib Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8768

MFC 308664,308742,308743

2016-12-29T05:32:34Z

308664 hyperv/vss: Add driver and tools for VSS VSS stands for "Volume Shadow Copy Service". Unlike virtual machine snapshot, it only takes snapshot for the virtual disks, so both filesystem and applications have to aware of it, and cooperate the whole VSS process. This driver exposes two device files to the userland: /dev/hv_fsvss_dev Normally userland programs should _not_ mess with this device file. It is currently used by the hv_vss_daemon(8), which freezes and thaws the filesystem. NOTE: currently only UFS is supported, if the system mounts _any_ other filesystems, the hv_vss_daemon(8) will veto the VSS process. If hv_vss_daemon(8) was disabled, then this device file must be opened, and proper ioctls must be issued to keep the VSS working. /dev/hv_appvss_dev Userland application can opened this device file to receive the VSS freeze notification, hold the VSS for a while (mainly to flush application data to filesystem), release the VSS process, and receive the VSS thaw notification i.e. applications can run again. The VSS will still work, even if this device file is not opened. However, only filesystem consistency is promised, if this device file is not opened or is not operated properly. hv_vss_daemon(8) is started by devd(8) by default. It can be disabled by editting /etc/devd/hyperv.conf. Submitted by: Hongjiang Zhang Reviewed by: kib, mckusick Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8224 308742 hyperv/vss: Nuke unused variables. Submitted by: markj Reported by: markj Sponsored by: Microsoft 308743 hyperv/vss: Install the userland daemon to /usr/sbin instead of / Submitted by: markj Reported by: markj Sponsored by: Microsoft

MFC 309274:

2016-12-16T01:14:00Z

Use the correct name for the GCC macro indicating max_align_t is defined.

MFC r296133:

2016-12-03T18:56:28Z

r296133 (by pfg): RPC: update the getrpcbyname() definition to include a const qualifier. Add const qualifier making getrpcbyname() and getrpcbyname_r() prototypes match those used in latest Sun RPC code (TI-RPC 2.3). Obtained from: NetBSD

MFC 307756: Define max_align_t for C11.

2016-11-28T18:36:37Z

libc++'s stddef.h includes an existing definition of max_align_t for C++11, but it is only defined for C++, not for C. In addition, GCC and clang both define an alternate version of max_align_t that uses a union of multiple types rather than a plain long double as in libc++. This adds a __max_align_t to that matches the GCC and clang definition that is mapped to max_align_t in . PR: 210890