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[SCM] GNU Mach branch, master, updated. v1.8-221-g4a8995b
From: |
Samuel Thibault |
Subject: |
[SCM] GNU Mach branch, master, updated. v1.8-221-g4a8995b |
Date: |
Fri, 27 Nov 2020 19:54:56 -0500 (EST) |
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU Mach".
The branch, master has been updated
via 4a8995ba22e0862eb8ece1d721870326669719ce (commit)
from 0b1f1658732cd0e38ecb84a98b3bdf7a97a3b122 (commit)
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- Log -----------------------------------------------------------------
commit 4a8995ba22e0862eb8ece1d721870326669719ce
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Sat Nov 28 01:31:15 2020 +0100
x86: Pave the way for xsave/xrstor support
* i386/i386/fpu.h (xgetbv, get_xcr0, xsetbv, set_xcr0): New inline
functions.
(xsave, xrstor): New macros.
* i386/i386/locore.S (cpu_features): Extend to two words.
(cpu_features_edx, cpu_features_ecx): New labels.
(discover_x86_cpu_type): Also save ecx cpuid(1) report.
* x86_64/locore.S: Likewise.
* i386/i386/locore.h (cpu_features): Extend to two words.
(CPU_FEATURE_XSAVE): New macro.
* i386/i386/proc_reg.h (CR4_OSXSAVE): New macro.
-----------------------------------------------------------------------
Summary of changes:
i386/i386/fpu.h | 29 +++++++++++++++++++++++++++++
i386/i386/locore.S | 6 +++++-
i386/i386/locore.h | 3 ++-
i386/i386/proc_reg.h | 2 ++
x86_64/locore.S | 6 +++++-
5 files changed, 43 insertions(+), 3 deletions(-)
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