summaryrefslogtreecommitdiffstats
path: root/configure.ac
diff options
context:
space:
mode:
authorAttila Fülöp <[email protected]>2022-02-09 21:50:10 +0100
committerGitHub <[email protected]>2022-02-09 12:50:10 -0800
commit8e94ac0e36c552ec1a852be8efc0a2811cef2932 (patch)
treedc8100be54ce923d1104d29fe464de9fc61a9f18 /configure.ac
parente2909fae8f2c3b15459fd4c0acc1999c6907864b (diff)
Linux 5.16 compat: don't use XSTATE_XSAVE to save FPU state
Linux 5.16 moved XSTATE_XSAVE and XSTATE_XRESTORE out of our reach, so add our own XSAVE{,OPT,S} code and use it for Linux 5.16. Please note that this differs from previous behavior in that it won't handle exceptions created by XSAVE an XRSTOR. This is sensible for three reasons. - Exceptions during XSAVE and XRSTOR can only occur if the feature is not supported or enabled or the memory operand isn't aligned on a 64 byte boundary. If this happens something else went terribly wrong, and it may be better to stop execution. - Previously we just printed a warning and didn't handle the fault, this is arguable for the above reason. - All other *SAVE instruction also don't handle exceptions, so this at least aligns behavior. Finally add a test to catch such a regression in the future. Reviewed-by: Tony Hutter <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Attila Fülöp <[email protected]> Closes #13042 Closes #13059
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 7b6113c1b..7037c06b2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -383,6 +383,7 @@ AC_CONFIG_FILES([
tests/zfs-tests/tests/functional/rootpool/Makefile
tests/zfs-tests/tests/functional/rsend/Makefile
tests/zfs-tests/tests/functional/scrub_mirror/Makefile
+ tests/zfs-tests/tests/functional/simd/Makefile
tests/zfs-tests/tests/functional/slog/Makefile
tests/zfs-tests/tests/functional/snapshot/Makefile
tests/zfs-tests/tests/functional/snapused/Makefile