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Diffstat (limited to 'arch/s390/kernel/dis.c')
-rw-r--r--arch/s390/kernel/dis.c85
1 files changed, 84 insertions, 1 deletions
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index 619c5d350726..f00286bd2ef9 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -315,6 +315,11 @@ enum {
LONG_INSN_POPCNT,
LONG_INSN_RISBHG,
LONG_INSN_RISBLG,
+ LONG_INSN_RINEXT,
+ LONG_INSN_RIEMIT,
+ LONG_INSN_TABORT,
+ LONG_INSN_TBEGIN,
+ LONG_INSN_TBEGINC,
};
static char *long_insn_name[] = {
@@ -329,7 +334,12 @@ static char *long_insn_name[] = {
[LONG_INSN_LLGHRL] = "llghrl",
[LONG_INSN_POPCNT] = "popcnt",
[LONG_INSN_RISBHG] = "risbhg",
- [LONG_INSN_RISBLG] = "risblk",
+ [LONG_INSN_RISBLG] = "risblg",
+ [LONG_INSN_RINEXT] = "rinext",
+ [LONG_INSN_RIEMIT] = "riemit",
+ [LONG_INSN_TABORT] = "tabort",
+ [LONG_INSN_TBEGIN] = "tbegin",
+ [LONG_INSN_TBEGINC] = "tbeginc",
};
static struct insn opcode[] = {
@@ -582,6 +592,17 @@ static struct insn opcode_a7[] = {
{ "", 0, INSTR_INVALID }
};
+static struct insn opcode_aa[] = {
+#ifdef CONFIG_64BIT
+ { { 0, LONG_INSN_RINEXT }, 0x00, INSTR_RI_RI },
+ { "rion", 0x01, INSTR_RI_RI },
+ { "tric", 0x02, INSTR_RI_RI },
+ { "rioff", 0x03, INSTR_RI_RI },
+ { { 0, LONG_INSN_RIEMIT }, 0x04, INSTR_RI_RI },
+#endif
+ { "", 0, INSTR_INVALID }
+};
+
static struct insn opcode_b2[] = {
#ifdef CONFIG_64BIT
{ "sske", 0x2b, INSTR_RRF_M0RR },
@@ -594,6 +615,9 @@ static struct insn opcode_b2[] = {
{ "lpswe", 0xb2, INSTR_S_RD },
{ "srnmt", 0xb9, INSTR_S_RD },
{ "lfas", 0xbd, INSTR_S_RD },
+ { "etndg", 0xec, INSTR_RRE_R0 },
+ { { 0, LONG_INSN_TABORT }, 0xfc, INSTR_S_RD },
+ { "tend", 0xf8, INSTR_S_RD },
#endif
{ "stidp", 0x02, INSTR_S_RD },
{ "sck", 0x04, INSTR_S_RD },
@@ -1150,6 +1174,7 @@ static struct insn opcode_e3[] = {
{ "stfh", 0xcb, INSTR_RXY_RRRD },
{ "chf", 0xcd, INSTR_RXY_RRRD },
{ "clhf", 0xcf, INSTR_RXY_RRRD },
+ { "ntstg", 0x25, INSTR_RXY_RRRD },
#endif
{ "lrv", 0x1e, INSTR_RXY_RRRD },
{ "lrvh", 0x1f, INSTR_RXY_RRRD },
@@ -1173,6 +1198,8 @@ static struct insn opcode_e5[] = {
{ "mvhhi", 0x44, INSTR_SIL_RDI },
{ "mvhi", 0x4c, INSTR_SIL_RDI },
{ "mvghi", 0x48, INSTR_SIL_RDI },
+ { { 0, LONG_INSN_TBEGIN }, 0x60, INSTR_SIL_RDU },
+ { { 0, LONG_INSN_TBEGINC }, 0x61, INSTR_SIL_RDU },
#endif
{ "lasp", 0x00, INSTR_SSE_RDRD },
{ "tprot", 0x01, INSTR_SSE_RDRD },
@@ -1210,6 +1237,9 @@ static struct insn opcode_eb[] = {
{ "cliy", 0x55, INSTR_SIY_URD },
{ "oiy", 0x56, INSTR_SIY_URD },
{ "xiy", 0x57, INSTR_SIY_URD },
+ { "lric", 0x60, INSTR_RSY_RDRM },
+ { "stric", 0x61, INSTR_RSY_RDRM },
+ { "mric", 0x62, INSTR_RSY_RDRM },
{ "icmh", 0x80, INSTR_RSE_RURD },
{ "icmh", 0x80, INSTR_RSY_RURD },
{ "icmy", 0x81, INSTR_RSY_RURD },
@@ -1408,6 +1438,9 @@ static struct insn *find_insn(unsigned char *code)
case 0xa7:
table = opcode_a7;
break;
+ case 0xaa:
+ table = opcode_aa;
+ break;
case 0xb2:
table = opcode_b2;
break;
@@ -1468,6 +1501,33 @@ static struct insn *find_insn(unsigned char *code)
return NULL;
}
+/**
+ * insn_to_mnemonic - decode an s390 instruction
+ * @instruction: instruction to decode
+ * @buf: buffer to fill with mnemonic
+ *
+ * Decode the instruction at @instruction and store the corresponding
+ * mnemonic into @buf.
+ * @buf is left unchanged if the instruction could not be decoded.
+ * Returns:
+ * %0 on success, %-ENOENT if the instruction was not found.
+ */
+int insn_to_mnemonic(unsigned char *instruction, char buf[8])
+{
+ struct insn *insn;
+
+ insn = find_insn(instruction);
+ if (!insn)
+ return -ENOENT;
+ if (insn->name[0] == '\0')
+ snprintf(buf, sizeof(buf), "%s",
+ long_insn_name[(int) insn->name[1]]);
+ else
+ snprintf(buf, sizeof(buf), "%.5s", insn->name);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(insn_to_mnemonic);
+
static int print_insn(char *buffer, unsigned char *code, unsigned long addr)
{
struct insn *insn;
@@ -1601,3 +1661,26 @@ void show_code(struct pt_regs *regs)
}
printk("\n");
}
+
+void print_fn_code(unsigned char *code, unsigned long len)
+{
+ char buffer[64], *ptr;
+ int opsize, i;
+
+ while (len) {
+ ptr = buffer;
+ opsize = insn_length(*code);
+ ptr += sprintf(ptr, "%p: ", code);
+ for (i = 0; i < opsize; i++)
+ ptr += sprintf(ptr, "%02x", code[i]);
+ *ptr++ = '\t';
+ if (i < 4)
+ *ptr++ = '\t';
+ ptr += print_insn(ptr, code, (unsigned long) code);
+ *ptr++ = '\n';
+ *ptr++ = 0;
+ printk(buffer);
+ code += opsize;
+ len -= opsize;
+ }
+}