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| author | Kan Liang <kan.liang@linux.intel.com> | 2026-08-24 16:27:14 +0800 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2026-09-02 13:10:41 +0200 |
| commit | 03b89c9f202ee75c9997a8421f0e09a5590c3878 (patch) | |
| tree | 1279134a334e34b34c42b0042ebe348b0f65b891 /tools/perf/scripts/python/flamegraph.py | |
| parent | 9c05620b49718544ba163c2ccc3c5a6b1f0bc8b0 (diff) | |
x86/fpu/xstate: Add xsaves_nmi() helper
Add xsaves_nmi() to save supported xsave states in NMI handler.
This function is similar to xsaves(), but should only be called within
the NMI handler. This function returns the actual register contents at
the moment the NMI occurs.
Currently the perf subsystem is the sole user of this helper. It uses
this function to snapshot SIMD (XMM/YMM/ZMM) and APX eGPRs registers
which would be added in subsequent patches.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260824082731.1013973-7-dapeng1.mi@linux.intel.com
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions