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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /tools/testing/selftests/kvm/include/s390x/processor.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/kvm/include/s390x/processor.h')
-rw-r--r--tools/testing/selftests/kvm/include/s390x/processor.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/s390x/processor.h b/tools/testing/selftests/kvm/include/s390x/processor.h
new file mode 100644
index 000000000..255c9b990
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/s390x/processor.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * s390x processor specific defines
+ */
+#ifndef SELFTEST_KVM_PROCESSOR_H
+#define SELFTEST_KVM_PROCESSOR_H
+
+#include <linux/compiler.h>
+
+/* Bits in the region/segment table entry */
+#define REGION_ENTRY_ORIGIN ~0xfffUL /* region/segment table origin */
+#define REGION_ENTRY_PROTECT 0x200 /* region protection bit */
+#define REGION_ENTRY_NOEXEC 0x100 /* region no-execute bit */
+#define REGION_ENTRY_OFFSET 0xc0 /* region table offset */
+#define REGION_ENTRY_INVALID 0x20 /* invalid region table entry */
+#define REGION_ENTRY_TYPE 0x0c /* region/segment table type mask */
+#define REGION_ENTRY_LENGTH 0x03 /* region third length */
+
+/* Bits in the page table entry */
+#define PAGE_INVALID 0x400 /* HW invalid bit */
+#define PAGE_PROTECT 0x200 /* HW read-only bit */
+#define PAGE_NOEXEC 0x100 /* HW no-execute bit */
+
+/* Is there a portable way to do this? */
+static inline void cpu_relax(void)
+{
+ barrier();
+}
+
+#endif