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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> Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Tony Luck <tony.luck@intel.com> Link: https://lkml.kernel.org/r/20200528201402.1708239-15-sashal@kernel.org |
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i386 | ||
x86_64 | ||
amd-memory-encryption.rst | ||
boot.rst | ||
earlyprintk.rst | ||
entry_64.rst | ||
exception-tables.rst | ||
index.rst | ||
intel_txt.rst | ||
intel-iommu.rst | ||
kernel-stacks.rst | ||
mds.rst | ||
microcode.rst | ||
mtrr.rst | ||
orc-unwinder.rst | ||
pat.rst | ||
pti.rst | ||
resctrl_ui.rst | ||
tlb.rst | ||
topology.rst | ||
tsx_async_abort.rst | ||
usb-legacy-support.rst | ||
zero-page.rst |