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| author | Richard Sandiford <richard.sandiford@arm.com> | 2021-11-30 17:50:24 +0000 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2021-11-30 17:50:24 +0000 |
| commit | b009f915c9e744b1671f72806c5714af00a8ee89 (patch) | |
| tree | d3168c5d2ac3fcf81d62277f08c6ec32672322cf /gas | |
| parent | 1864b6578bd96bee057ed4ce5f69917c9ad9abc9 (diff) | |
| download | gdb-b009f915c9e744b1671f72806c5714af00a8ee89.zip gdb-b009f915c9e744b1671f72806c5714af00a8ee89.tar.gz gdb-b009f915c9e744b1671f72806c5714af00a8ee89.tar.bz2 | |
aarch64: Allow writes to MFAR_EL3
MFAR_EL3 is a read/write register, but was incorrectly marked as
read-only
[https://developer.arm.com/documentation/ddi0601/2021-09/AArch64-Registers/MFAR-EL3--PA-Fault-Address-Register?lang=en]
opcodes/
* aarch64-opc.c (aarch64_sys_regs): Mark mfar_el3 as read-write.
gas/
* testsuite/gas/aarch64/rme.s: Test writing to mfar_el3.
* testsuite/gas/aarch64/rme.d: Update accordingly.
* testsuite/gas/aarch64/rme-invalid.s: Delete.
* testsuite/gas/aarch64/rme-invalid.l: Likewise.
* testsuite/gas/aarch64/rme-invalid.d: Likewise.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/testsuite/gas/aarch64/rme-invalid.d | 3 | ||||
| -rw-r--r-- | gas/testsuite/gas/aarch64/rme-invalid.l | 2 | ||||
| -rw-r--r-- | gas/testsuite/gas/aarch64/rme-invalid.s | 4 | ||||
| -rw-r--r-- | gas/testsuite/gas/aarch64/rme.d | 23 | ||||
| -rw-r--r-- | gas/testsuite/gas/aarch64/rme.s | 1 |
5 files changed, 13 insertions, 20 deletions
diff --git a/gas/testsuite/gas/aarch64/rme-invalid.d b/gas/testsuite/gas/aarch64/rme-invalid.d deleted file mode 100644 index 091f40c..0000000 --- a/gas/testsuite/gas/aarch64/rme-invalid.d +++ /dev/null @@ -1,3 +0,0 @@ -#name: Invalid RME System registers usage -#source: rme-invalid.s -#warning_output: rme-invalid.l diff --git a/gas/testsuite/gas/aarch64/rme-invalid.l b/gas/testsuite/gas/aarch64/rme-invalid.l deleted file mode 100644 index 7a9e3b2..0000000 --- a/gas/testsuite/gas/aarch64/rme-invalid.l +++ /dev/null @@ -1,2 +0,0 @@ -.*: Assembler messages: -.*: Warning: specified register cannot be written to at operand 1 -- `msr mfar_el3,x0' diff --git a/gas/testsuite/gas/aarch64/rme-invalid.s b/gas/testsuite/gas/aarch64/rme-invalid.s deleted file mode 100644 index d19ac9ca..0000000 --- a/gas/testsuite/gas/aarch64/rme-invalid.s +++ /dev/null @@ -1,4 +0,0 @@ -/* Realm Management Extension. */ - -/* Illegal write to RME system registers. */ -msr mfar_el3, x0 diff --git a/gas/testsuite/gas/aarch64/rme.d b/gas/testsuite/gas/aarch64/rme.d index a714b78..e46339f 100644 --- a/gas/testsuite/gas/aarch64/rme.d +++ b/gas/testsuite/gas/aarch64/rme.d @@ -7,14 +7,15 @@ Disassembly of section \.text: 0+ <.*>: - 0: d53e60a0 mrs x0, mfar_el3 - 4: d53e21c0 mrs x0, gpccr_el3 - 8: d53e2180 mrs x0, gptbr_el3 - c: d51e21c0 msr gpccr_el3, x0 - 10: d51e2180 msr gptbr_el3, x0 - 14: d50e7e20 dc cipapa, x0 - 18: d50e7ea0 dc cigdpapa, x0 - 1c: d50e8460 tlbi rpaos, x0 - 20: d50e84e0 tlbi rpalos, x0 - 24: d50e819f tlbi paallos - 28: d50e879f tlbi paall +[^:]*: d53e60a0 mrs x0, mfar_el3 +[^:]*: d53e21c0 mrs x0, gpccr_el3 +[^:]*: d53e2180 mrs x0, gptbr_el3 +[^:]*: d51e60a0 msr mfar_el3, x0 +[^:]*: d51e21c0 msr gpccr_el3, x0 +[^:]*: d51e2180 msr gptbr_el3, x0 +[^:]*: d50e7e20 dc cipapa, x0 +[^:]*: d50e7ea0 dc cigdpapa, x0 +[^:]*: d50e8460 tlbi rpaos, x0 +[^:]*: d50e84e0 tlbi rpalos, x0 +[^:]*: d50e819f tlbi paallos +[^:]*: d50e879f tlbi paall diff --git a/gas/testsuite/gas/aarch64/rme.s b/gas/testsuite/gas/aarch64/rme.s index 21d9bd2..d35687b 100644 --- a/gas/testsuite/gas/aarch64/rme.s +++ b/gas/testsuite/gas/aarch64/rme.s @@ -6,6 +6,7 @@ mrs x0, gpccr_el3 mrs x0, gptbr_el3 /* Write to RME system registers. */ +msr mfar_el3, x0 msr gpccr_el3, x0 msr gptbr_el3, x0 |