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-rwxr-xr-xconfigure32
-rw-r--r--qemu-seccomp.c13
2 files changed, 37 insertions, 8 deletions
diff --git a/configure b/configure
index f75df4b68f..0a4c78a743 100755
--- a/configure
+++ b/configure
@@ -1888,16 +1888,34 @@ fi
# libseccomp check
if test "$seccomp" != "no" ; then
- if test "$cpu" = "i386" || test "$cpu" = "x86_64" &&
- $pkg_config --atleast-version=2.1.1 libseccomp; then
+ case "$cpu" in
+ i386|x86_64)
+ libseccomp_minver="2.1.0"
+ ;;
+ arm|aarch64)
+ libseccomp_minver="2.2.3"
+ ;;
+ *)
+ libseccomp_minver=""
+ ;;
+ esac
+
+ if test "$libseccomp_minver" != "" &&
+ $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
libs_softmmu="$libs_softmmu `$pkg_config --libs libseccomp`"
QEMU_CFLAGS="$QEMU_CFLAGS `$pkg_config --cflags libseccomp`"
- seccomp="yes"
+ seccomp="yes"
else
- if test "$seccomp" = "yes"; then
- feature_not_found "libseccomp" "Install libseccomp devel >= 2.1.1"
- fi
- seccomp="no"
+ if test "$seccomp" = "yes" ; then
+ if test "$libseccomp_minver" != "" ; then
+ feature_not_found "libseccomp" \
+ "Install libseccomp devel >= $libseccomp_minver"
+ else
+ feature_not_found "libseccomp" \
+ "libseccomp is not supported for host cpu $cpu"
+ fi
+ fi
+ seccomp="no"
fi
fi
##########################################
diff --git a/qemu-seccomp.c b/qemu-seccomp.c
index 80d034a8d5..c831fe83ad 100644
--- a/qemu-seccomp.c
+++ b/qemu-seccomp.c
@@ -16,6 +16,14 @@
#include <seccomp.h>
#include "sysemu/seccomp.h"
+#if SCMP_VER_MAJOR >= 3
+ #define HAVE_CACHEFLUSH
+#elif SCMP_VER_MAJOR == 2 && SCMP_VER_MINOR >= 3
+ #define HAVE_CACHEFLUSH
+#elif SCMP_VER_MAJOR == 2 && SCMP_VER_MINOR == 2 && SCMP_VER_MICRO >= 3
+ #define HAVE_CACHEFLUSH
+#endif
+
struct QemuSeccompSyscall {
int32_t num;
uint8_t priority;
@@ -238,7 +246,10 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
{ SCMP_SYS(inotify_init1), 240 },
{ SCMP_SYS(inotify_add_watch), 240 },
{ SCMP_SYS(mbind), 240 },
- { SCMP_SYS(memfd_create), 240 }
+ { SCMP_SYS(memfd_create), 240 },
+#ifdef HAVE_CACHEFLUSH
+ { SCMP_SYS(cacheflush), 240 },
+#endif
};
int seccomp_start(void)