diff options
| author | sigsegv7 <ian@vegaa.systems> | 2023-09-25 05:28:54 -0400 |
|---|---|---|
| committer | sigsegv7 <ian@vegaa.systems> | 2023-09-25 05:30:19 -0400 |
| commit | b143f00b1605f588e02349914b6fcb0fd3bab55e (patch) | |
| tree | 893580beb5c9fe47ffbf58944616c44fb7ac6859 /configure.ac | |
| parent | b46ad8dbf5f8ec212a80a575f0d07e001f825fbf (diff) | |
kernel/amd64: Add spectre mitigation support
Add spectre mitigation support for AMD64 hosts which may be enabled via
the --enable-spectre-mitigation configure flag. This commit currently
only adds IBRS support but more techniques may be added later on.
Signed-off-by: sigsegv7 <ian@vegaa.systems>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 5d2d9a0..253b69d 100644 --- a/configure.ac +++ b/configure.ac @@ -16,6 +16,18 @@ QEMU_FLAGS_X86_64="--enable-kvm -monitor stdio \\ VEGA_BUILDDATE=`export LANG=en_US.UTF-8 ; date` VEGA_BUILDBRANCH="`basename $PWD`" +# Enable Spectre mitigation option +AC_ARG_ENABLE([spectre-mitigation], + [AS_HELP_STRING([--enable-spectre-mitigation], [Enable Spectre mitigation (IBRS or similar)])],, + [enable_spectre_mitigation=$enableval]) + + +if test "x$enable_spectre_mitigation" = "xyes"; then + AC_SUBST(SPECTRE_MITIGATION, [1]) +else + AC_SUBST(SPECTRE_MITIGATION, [0]) +fi + AC_SUBST(VEGA_BUILDDATE, [$VEGA_BUILDDATE]) AC_SUBST(VEGA_BUILDBRANCH, [$VEGA_BUILDBRANCH]) |