diff options
| author | Weiwei Li <liweiwei@iscas.ac.cn> | 2022-04-23 10:35:08 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2022-04-29 10:47:45 +1000 |
| commit | 77442380ecbe3b3c092c2a48dbfe8286336e7e78 (patch) | |
| tree | 3cda54192edfe4bc0bd0bcd87a0537102ff5006b /target/riscv/cpu_bits.h | |
| parent | 0976083d1be23d72b9a4857f6d8c3d86b5f11efa (diff) | |
target/riscv: rvk: add CSR support for Zkr
- add SEED CSR which must be accessed with a read-write instruction:
A read-only instruction such as CSRRS/CSRRC with rs1=x0 or CSRRSI/CSRRCI
with uimm=0 will raise an illegal instruction exception.
- add USEED, SSEED fields for MSECCFG CSR
Co-authored-by: Ruibo Lu <luruibo2000@163.com>
Co-authored-by: Zewen Ye <lustrew@foxmail.com>
Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220423023510.30794-13-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target/riscv/cpu_bits.h')
| -rw-r--r-- | target/riscv/cpu_bits.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h index 4a9e4f7d09..4d04b20d06 100644 --- a/target/riscv/cpu_bits.h +++ b/target/riscv/cpu_bits.h @@ -458,6 +458,9 @@ #define CSR_VSPMMASK 0x2c1 #define CSR_VSPMBASE 0x2c2 +/* Crypto Extension */ +#define CSR_SEED 0x015 + /* mstatus CSR bits */ #define MSTATUS_UIE 0x00000001 #define MSTATUS_SIE 0x00000002 @@ -800,4 +803,10 @@ typedef enum RISCVException { #define HVICTL_VALID_MASK \ (HVICTL_VTI | HVICTL_IID | HVICTL_IPRIOM | HVICTL_IPRIO) +/* seed CSR bits */ +#define SEED_OPST (0b11 << 30) +#define SEED_OPST_BIST (0b00 << 30) +#define SEED_OPST_WAIT (0b01 << 30) +#define SEED_OPST_ES16 (0b10 << 30) +#define SEED_OPST_DEAD (0b11 << 30) #endif |