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linux/arch/x86/um/asm
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Benjamin Berg 1ca1443570 um: Rely on PTRACE_SETREGSET to set FS/GS base registers 
These registers are saved/restored together with the other general
registers using ptrace. In arch_set_tls we then just need to set the
register and it will be synced back normally.

Most of this logic was introduced in commit f355559cf7 ("[PATCH] uml:
x86_64 thread fixes"). However, at least today we can rely on ptrace to
restore the base registers for us. As such, only the part of the patch
that tracks the FS register for use as thread local storage is actually
needed.

Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-01-05 16:28:56 +01:00
..
apic.h
arch_hweight.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
archparam.h
barrier.h uml/i386: missing include in barrier.h 2021-12-21 21:31:35 +01:00
checksum_32.h saner calling conventions for csum_and_copy_..._user() 2020-08-20 15:45:15 -04:00
checksum_64.h
checksum.h unify generic instances of csum_partial_copy_nocheck() 2020-08-20 15:45:14 -04:00
desc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
elf.h um: Rely on PTRACE_SETREGSET to set FS/GS base registers 2024-01-05 16:28:56 +01:00
irq_vectors.h
mm_context.h um: Remove unsued extern declaration ldt_host_info() 2023-08-26 22:36:14 +02:00
module.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
processor_32.h treewide: remove current_text_addr 2018-10-31 08:54:12 -07:00
processor_64.h um: Rely on PTRACE_SETREGSET to set FS/GS base registers 2024-01-05 16:28:56 +01:00
processor.h um: Implement cpu_relax() as ndelay(1) for time-travel 2020-03-29 23:29:56 +02:00
ptrace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
required-features.h
segment.h um: remove set_fs 2021-12-22 17:56:56 +01:00
syscall.h syscall_get_arch: add "struct task_struct *" argument 2019-03-20 21:12:36 -04:00
vm-flags.h mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS 2020-04-10 15:36:21 -07:00