jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
target/arm: Convert Unallocated memory hint
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-40-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
authored by
Richard Henderson
and committed by
Peter Maydell
610f4e17
beb595f6
+8
-8
+8
target/arm/a32-uncond.decode
+8
target/arm/a32-uncond.decode
···
64
64
PLD 1111 0111 -101 ---- 1111 ----- -- 0 ---- # (register) 5te
65
65
PLDW 1111 0111 -001 ---- 1111 ----- -- 0 ---- # (register) 7mp
66
66
PLI 1111 0110 -101 ---- 1111 ----- -- 0 ---- # (register) 7
67
+
68
+
# Unallocated memory hints
69
+
#
70
+
# Since these are v7MP nops, and PLDW is v7MP and implemented as nop,
71
+
# (ab)use the PLDW helper.
72
+
73
+
PLDW 1111 0100 -001 ---- ---- ---- ---- ----
74
+
PLDW 1111 0110 -001 ---- ---- ---- ---0 ----
-8
target/arm/translate.c
-8
target/arm/translate.c
···
10332
10332
}
10333
10333
return;
10334
10334
}
10335
-
if (((insn & 0x0f700000) == 0x04100000) ||
10336
-
((insn & 0x0f700010) == 0x06100000)) {
10337
-
if (!arm_dc_feature(s, ARM_FEATURE_V7MP)) {
10338
-
goto illegal_op;
10339
-
}
10340
-
return; /* v7MP: Unallocated memory hint: must NOP */
10341
-
}
10342
-
10343
10335
if ((insn & 0x0e000f00) == 0x0c000100) {
10344
10336
if (arm_dc_feature(s, ARM_FEATURE_IWMMXT)) {
10345
10337
/* iWMMXt register transfer. */