diff options
| author | Oliver Upton <oliver.upton@linux.dev> | 2025-09-26 12:41:07 -0700 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2025-10-13 14:17:02 +0100 |
| commit | ed25dcfbc4327570b28f0328a8e17d121434c0ea (patch) | |
| tree | dedcdd29c322a240c6718e8904580cf8abf1568a /tools/docs/parse-headers.py | |
| parent | 3a8660878839faadb4f1a6dd72c3179c1df56787 (diff) | |
KVM: arm64: nv: Don't treat ZCR_EL2 as a 'mapped' register
Unlike the other mapped EL2 sysregs ZCR_EL2 isn't guaranteed to be
resident when a vCPU is loaded as it actually follows the SVE
context. As such, the contents of ZCR_EL1 may belong to another guest if
the vCPU has been preempted before reaching sysreg emulation.
Unconditionally use the in-memory value of ZCR_EL2 and switch to the
memory-only accessors. The in-memory value is guaranteed to be valid as
fpsimd_lazy_switch_to_{guest,host}() will restore/save the register
appropriately.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'tools/docs/parse-headers.py')
0 files changed, 0 insertions, 0 deletions