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Merge pull request #904 from kr-sc/kr-sc/support-sv57 

target/riscv: Add support for Sv57 (and Sv57x4) translation mode
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Tim Newsome 2023-08-23 12:03:21 -07:00 committed by GitHub
parent 7aedb15951 1d2eea0399
commit 928f2b374a
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 37 additions and 2 deletions
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37
src/target/riscv/riscv.c
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@ -221,7 +221,33 @@ static const virt2phys_info_t sv48x4 = {
.pte_ppn_shift = {10, 19, 28, 37},
.pte_ppn_mask = {0x1ff, 0x1ff, 0x1ff, 0x1ffff},
.pa_ppn_shift = {12, 21, 30, 39},
.pa_ppn_mask = {0x1ff, 0x1ff, 0x1ff, 0x7ffff},
.pa_ppn_mask = {0x1ff, 0x1ff, 0x1ff, 0x1ffff},
};
static const virt2phys_info_t sv57 = {
.name = "Sv57",
.va_bits = 57,
.level = 5,
.pte_shift = 3,
.vpn_shift = {12, 21, 30, 39, 48},
.vpn_mask = {0x1ff, 0x1ff, 0x1ff, 0x1ff, 0x1ff},
.pte_ppn_shift = {10, 19, 28, 37, 46},
.pte_ppn_mask = {0x1ff, 0x1ff, 0x1ff, 0x1ff, 0xff},
.pa_ppn_shift = {12, 21, 30, 39, 48},
.pa_ppn_mask = {0x1ff, 0x1ff, 0x1ff, 0x1ff, 0xff},
};
static const virt2phys_info_t sv57x4 = {
.name = "Sv57x4",
.va_bits = 59,
.level = 5,
.pte_shift = 3,
.vpn_shift = {12, 21, 30, 39, 48},
.vpn_mask = {0x1ff, 0x1ff, 0x1ff, 0x1ff, 0x7ff},
.pte_ppn_shift = {10, 19, 28, 37, 46},
.pte_ppn_mask = {0x1ff, 0x1ff, 0x1ff, 0x1ff, 0xff},
.pa_ppn_shift = {12, 21, 30, 39, 48},
.pa_ppn_mask = {0x1ff, 0x1ff, 0x1ff, 0x1ff, 0xff},
};
static enum riscv_halt_reason riscv_halt_reason(struct target *target);
@ -2218,6 +2244,9 @@ static int riscv_virt2phys_v(struct target *target, target_addr_t virtual, targe
case SATP_MODE_SV48:
vsatp_info = &sv48;
break;
case SATP_MODE_SV57:
vsatp_info = &sv57;
break;
case SATP_MODE_OFF:
vsatp_info = NULL;
break;
@ -2240,6 +2269,9 @@ static int riscv_virt2phys_v(struct target *target, target_addr_t virtual, targe
case HGATP_MODE_SV48X4:
hgatp_info = &sv48x4;
break;
case HGATP_MODE_SV57X4:
hgatp_info = &sv57x4;
break;
case HGATP_MODE_OFF:
hgatp_info = NULL;
break;
@ -2323,6 +2355,9 @@ static int riscv_virt2phys(struct target *target, target_addr_t virtual, target_
case SATP_MODE_SV48:
satp_info = &sv48;
break;
case SATP_MODE_SV57:
satp_info = &sv57;
break;
case SATP_MODE_OFF:
LOG_TARGET_ERROR(target, "No translation or protection."
" (satp: 0x%" PRIx64 ")", satp_value);

2
src/target/riscv/riscv.h
View File

@ -30,7 +30,7 @@ struct riscv_program;
#define RISCV_HGATP_PPN(xlen) ((xlen) == 32 ? HGATP32_PPN : HGATP64_PPN)
#define RISCV_PGSHIFT 12
#define PG_MAX_LEVEL 4
#define PG_MAX_LEVEL 5
#define RISCV_NUM_MEM_ACCESS_METHODS 3