freebsd-dev/sys
Elliott Mitchell 9f3be3a6ec xen: switch to using core atomics for synchronization
Now that the atomic macros are always genuinely atomic on x86, they can
be used for synchronization with Xen.  A single core VM isn't too
unusual, but actual single core hardware is uncommon.

Replace an open-coding of evtchn_clear_port() with the inline.

Substantially inspired by work done by Julien Grall <julien@xen.org>,
2014-01-13 17:40:58.

Reviewed by: royger
MFC after: 1 week
2023-03-29 09:51:42 +02:00
..
amd64 xen: switch to using core atomics for synchronization 2023-03-29 09:51:42 +02:00
arm pmap_mapdev_attr() doesn't use any of its arguments. 2023-03-20 23:09:34 -07:00
arm64 arm64: Remove duplicated function prototypes for PAC 2023-03-27 08:56:22 -04:00
bsm
cam nvme: fix resv commands with nda device 2023-03-27 14:53:24 +02:00
cddl dtrace/powerpc: Remove accidental commented out line 2023-03-13 11:37:40 -04:00
compat linuxkpi: Add alderlake defines in intel-family 2023-03-28 10:57:13 +02:00
conf netlink: add netlink KPI to the kernel by default 2023-03-27 13:55:44 +00:00
contrib rtw89: fix -Wunused-but-set-variable 2023-03-23 00:29:38 +00:00
crypto OpenSSL: Regen an assembly file for arm 2023-03-21 15:13:51 -04:00
ddb ddb: ansify 2023-02-08 00:09:23 +00:00
dev xen: switch to using core atomics for synchronization 2023-03-29 09:51:42 +02:00
dts arm64/rockchip: Remove rk3328-dwc3 overlays 2022-11-16 11:58:32 +01:00
fs fs/msdosfs: add tracking of free root directory entries 2023-03-29 08:46:01 +02:00
gdb
geom gvinum: correct assertions 2023-03-21 10:03:12 -04:00
gnu
i386 xen: switch to using core atomics for synchronization 2023-03-29 09:51:42 +02:00
isa
kern cred: convert the refcount from int to long 2023-03-29 05:02:32 +00:00
kgssapi nfsd: Enable the NFSD_VNET vnet front end macros 2023-02-18 14:59:36 -08:00
libkern ashldi3: Use C89-style function definition 2022-11-27 13:23:25 -07:00
modules linuxkpi: Add hdmi helpers 2023-03-28 09:11:06 +02:00
net netlink: add netlink KPI to the kernel by default 2023-03-27 13:55:44 +00:00
net80211 net80211: make ieee80211_scan_dump_channels private 2023-03-14 22:17:03 +00:00
netgraph ng_atmllc: remove 2023-03-09 18:04:21 +00:00
netinet tcp: send SACK rescue retransmission also mid-stream 2023-03-28 04:47:01 +02:00
netinet6 inet6: Include if_private.h in one more netstack file 2023-03-24 10:25:35 -04:00
netipsec ipsec: only update lastused when it changes 2023-02-16 07:33:51 +00:00
netlink netlink: fix 19e43c163c by adding miseed netlinkg_glue.c 2023-03-27 16:09:02 +00:00
netpfil pf: remove pd_refs from pfsync 2023-03-28 01:18:07 +02:00
netsmb
nfs Allow any user to read the NFS stats, for example with nfsstat(1). 2022-12-01 22:21:14 -07:00
nfsclient
nfsserver
nlm nlm: only access refcounts using dedicated primitives 2022-11-24 19:46:43 +00:00
ofed ofed: Mechanically convert to IfAPI 2023-03-24 10:04:33 -04:00
opencrypto Complete removal of opt_compat.h 2023-02-13 19:07:38 +03:00
powerpc powerpc/pmap: Account for a potential NULL pmap in pmap_sync_icache 2023-03-21 09:56:26 -04:00
riscv riscv: Fix sig_atomic_t limit definitions 2023-03-22 16:23:22 +00:00
rpc svc_rpcsec_gss.c: Separate out the non-vnet initialization 2023-03-01 15:29:25 -08:00
security vfs: retire KERN_VNODE 2023-03-17 16:21:45 +00:00
sys cred: convert the refcount from int to long 2023-03-29 05:02:32 +00:00
teken
tests
tools Improve debuggability of VOP_* locking assertions 2023-01-18 22:11:05 -06:00
ufs Improve chance of finding an alternate superblock in sbsearch(3). 2023-03-23 13:04:52 -07:00
vm vnode_pager_input: return runningbufspace back 2023-03-26 00:55:29 +02:00
x86 xen: switch to using core atomics for synchronization 2023-03-29 09:51:42 +02:00
xdr xdr: ansify 2023-02-13 18:37:31 +00:00
xen xen: switch to using core atomics for synchronization 2023-03-29 09:51:42 +02:00
Makefile Remove dead code in the cscope target 2022-11-11 15:53:57 +00:00
README.md note that some arch independent code can live in dev (e.g. SMBios) 2023-03-03 01:54:07 -08:00

FreeBSD Kernel Source:

This directory contains the source files and build glue that make up the FreeBSD kernel and its modules, including both original and contributed software.

Kernel configuration files are located in the conf/ subdirectory of each architecture. GENERIC is the configuration used in release builds. NOTES contains documentation of all possible entries. LINT is a compile-only configuration used to maximize build coverage and detect regressions.

Source Roadmap:

Directory Description
amd64 AMD64 (64-bit x86) architecture support
arm 32-bit ARM architecture support
arm64 64-bit ARM (AArch64) architecture support
cam Common Access Method storage subsystem - cam(4) and ctl(4)
cddl CDDL-licensed optional sources such as DTrace
conf kernel build glue
compat Linux compatibility layer, FreeBSD 32-bit compatibility
contrib 3rd-party imported software such as OpenZFS
crypto crypto drivers
ddb interactive kernel debugger - ddb(4)
fs most filesystems, excluding UFS, NFS, and ZFS
dev device drivers and other arch independent code
gdb kernel remote GDB stub - gdb(4)
geom GEOM framework - geom(4)
i386 i386 (32-bit x86) architecture support
kern main part of the kernel
libkern libc-like and other support functions for kernel use
modules kernel module infrastructure
net core networking code
net80211 wireless networking (IEEE 802.11) - net80211(4)
netgraph graph-based networking subsystem - netgraph(4)
netinet IPv4 protocol implementation - inet(4)
netinet6 IPv6 protocol implementation - inet6(4)
netipsec IPsec protocol implementation - ipsec(4)
netpfil packet filters - ipfw(4), pf(4), and ipfilter(4)
opencrypto OpenCrypto framework - crypto(7)
powerpc PowerPC/POWER (32 and 64-bit) architecture support
riscv 64-bit RISC-V architecture support
security security facilities - audit(4) and mac(4)
sys kernel headers
tests kernel unit tests
ufs Unix File System - ffs(7)
vm virtual memory system
x86 code shared by AMD64 and i386 architectures