new file mode 100644
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Definition for kernel virtual machines on s390x
+ *
+ * Copyright IBM Corp. 2024
+ *
+ * Authors:
+ * Christoph Schlameuss <schlameuss@linux.ibm.com>
+ */
+
+#ifndef SELFTEST_KVM_DEBUG_PRINT_H
+#define SELFTEST_KVM_DEBUG_PRINT_H
+
+#include "asm/ptrace.h"
+#include "kvm_util.h"
+#include "sie.h"
+
+static inline void print_hex_bytes(const char *name, u64 addr, size_t len)
+{
+ u64 pos;
+
+ pr_debug("%s (%p)\n", name, (void *)addr);
+ pr_debug(" 0/0x00---------|");
+ if (len > 8)
+ pr_debug(" 8/0x08---------|");
+ if (len > 16)
+ pr_debug(" 16/0x10--------|");
+ if (len > 24)
+ pr_debug(" 24/0x18--------|");
+ for (pos = 0; pos < len; pos += 8) {
+ if ((pos % 32) == 0)
+ pr_debug("\n %3lu 0x%.3lx ", pos, pos);
+ pr_debug(" %16lx", *((u64 *)(addr + pos)));
+ }
+ pr_debug("\n");
+}
+
+static inline void print_hex(const char *name, u64 addr)
+{
+ print_hex_bytes(name, addr, 512);
+}
+
+static inline void print_psw(struct kvm_run *run, struct kvm_s390_sie_block *sie_block)
+{
+ pr_debug("flags:0x%x psw:0x%.16llx:0x%.16llx exit:%u %s\n",
+ run->flags,
+ run->psw_mask, run->psw_addr,
+ run->exit_reason, exit_reason_str(run->exit_reason));
+ pr_debug("sie_block psw:0x%.16llx:0x%.16llx\n",
+ sie_block->psw_mask, sie_block->psw_addr);
+}
+
+static inline void print_run(struct kvm_run *run, struct kvm_s390_sie_block *sie_block)
+{
+ print_hex_bytes("run", (u64)run, 0x150);
+ print_hex("sie_block", (u64)sie_block);
+ print_psw(run, sie_block);
+}
+
+static inline void print_regs(struct kvm_run *run)
+{
+ struct kvm_sync_regs *sync_regs = &run->s.regs;
+
+ print_hex_bytes("GPRS", (u64)sync_regs->gprs, 8 * NUM_GPRS);
+ print_hex_bytes("ACRS", (u64)sync_regs->acrs, 4 * NUM_ACRS);
+ print_hex_bytes("CRS", (u64)sync_regs->crs, 8 * NUM_CRS);
+}
+
+#endif /* SELFTEST_KVM_DEBUG_PRINT_H */