Alistair Francis 48eaeb56de target/riscv: Implement the stval/mtval illegal instruction ... The stval and mtval registers can optionally contain the faulting instruction on an illegal instruction exception. This patch adds support for setting the stval and mtval registers. The RISC-V spec states that "The stval register can optionally also be used to return the faulting instruction bits on an illegal instruction exception...". In this case we are always writing the value on an illegal instruction. This doesn't match all CPUs (some CPUs won't write the data), but in QEMU let's just populate the value on illegal instructions. This won't break any guest software, but will provide more information to guests. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20211220064916.107241-4-alistair.francis@opensource.wdc.com		2022-01-08 15:46:10 +10:00
..
insn_trans	target/riscv: modification of the trans_csrxx for 128-bit support	2022-01-08 15:46:10 +10:00
arch_dump.c	target-riscv: support QMP dump-guest-memory	2021-03-04 09:43:29 -05:00
bitmanip_helper.c	target/riscv: Add rev8 instruction, removing grev/grevi	2021-10-07 08:41:33 +10:00
cpu_bits.h	target/riscv: actual functions to realize crs 128-bit insns	2022-01-08 15:46:10 +10:00
cpu_helper.c	target/riscv: Implement the stval/mtval illegal instruction	2022-01-08 15:46:10 +10:00
cpu_user.h	Supply missing header guards	2019-06-12 13:20:21 +02:00
cpu-param.h	target/riscv: Add a virtualised MMU Mode	2020-11-09 15:08:45 -08:00
cpu.c	target/riscv: setup everything for rv64 to support rv128 execution	2022-01-08 15:46:10 +10:00
cpu.h	target/riscv: Implement the stval/mtval illegal instruction	2022-01-08 15:46:10 +10:00
csr.c	target/riscv: actual functions to realize crs 128-bit insns	2022-01-08 15:46:10 +10:00
fpu_helper.c	target/riscv: add "set round to odd" rounding mode helper function	2021-12-20 14:53:31 +10:00
gdbstub.c	target/riscv: setup everything for rv64 to support rv128 execution	2022-01-08 15:46:10 +10:00
helper.h	target/riscv: helper functions to wrap calls to 128-bit csr insns	2022-01-08 15:46:10 +10:00
insn16.decode	target/riscv: accessors to registers upper part and 128-bit load/store	2022-01-08 15:46:10 +10:00
insn32.decode	target/riscv: support for 128-bit M extension	2022-01-08 15:46:10 +10:00
instmap.h	target/riscv: progressively load the instruction during decode	2020-02-25 20:20:23 +00:00
internals.h	target/riscv: add "set round to odd" rounding mode helper function	2021-12-20 14:53:31 +10:00
Kconfig	meson: Introduce target-specific Kconfig	2021-07-09 18:21:34 +02:00
m128_helper.c	target/riscv: support for 128-bit M extension	2022-01-08 15:46:10 +10:00
machine.c	target/riscv: adding high part of some csrs	2022-01-08 15:46:10 +10:00
meson.build	target/riscv: support for 128-bit M extension	2022-01-08 15:46:10 +10:00
monitor.c	target/riscv: Replace riscv_cpu_is_32bit with riscv_cpu_mxl	2021-10-22 07:47:51 +10:00
op_helper.c	target/riscv: helper functions to wrap calls to 128-bit csr insns	2022-01-08 15:46:10 +10:00
pmp.c	target/riscv: pmp: Fix some typos	2021-07-15 08:56:00 +10:00
pmp.h	target/riscv: Add ePMP CSR access functions	2021-05-11 20:02:06 +10:00
trace-events	target/riscv: Add ePMP CSR access functions	2021-05-11 20:02:06 +10:00
trace.h	trace: switch position of headers to what Meson requires	2020-08-21 06:18:24 -04:00
translate.c	target/riscv: Implement the stval/mtval illegal instruction	2022-01-08 15:46:10 +10:00
vector_helper.c	target/riscv: rvv-1.0: rename vmandnot.mm and vmornot.mm to vmandn.mm and vmorn.mm	2021-12-20 14:53:31 +10:00