diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2019-06-13 22:04:24 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-06-22 11:38:57 +0200 |
| commit | 2c7b5ac5d5a93c4b0557293d06c6677f765081a6 (patch) | |
| tree | b14e2146688718f897155b275cd3a06464481e0b /Documentation/x86/x86_64/index.rst | |
| parent | x86/elf: Enumerate kernel FSGSBASE capability in AT_HWCAP2 (diff) | |
| download | wireguard-linux-2c7b5ac5d5a93c4b0557293d06c6677f765081a6.tar.xz wireguard-linux-2c7b5ac5d5a93c4b0557293d06c6677f765081a6.zip | |
Documentation/x86/64: Add documentation for GS/FS addressing mode
Explain how the GS/FS based addressing can be utilized in user space
applications along with the differences between the generic prctl() based
GS/FS base control and the FSGSBASE version available on newer CPUs.
Originally-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "Bae, Chang Seok" <chang.seok.bae@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>,
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: "Shankar, Ravi V" <ravi.v.shankar@intel.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1906132246310.1791@nanos.tec.linutronix.de
Diffstat (limited to '')
| -rw-r--r-- | Documentation/x86/x86_64/index.rst | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/x86/x86_64/index.rst b/Documentation/x86/x86_64/index.rst index d6eaaa5a35fc..a56070fc8e77 100644 --- a/Documentation/x86/x86_64/index.rst +++ b/Documentation/x86/x86_64/index.rst @@ -14,3 +14,4 @@ x86_64 Support fake-numa-for-cpusets cpu-hotplug-spec machinecheck + fsgs |