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authorKirill Radkin <kirill.radkin@syntacore.com>2023-08-11 15:55:33 +0300
committerKirill Radkin <kirill.radkin@syntacore.com>2023-08-14 14:33:44 +0300
commit1d2eea0399f166ba2a41cde796864d80033a1c98 (patch)
tree1bd6a5026ff8ff2c556d37f2b702401cbce07735
parentc07d9251aad639e82a4d35a652878b8b4275365f (diff)
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target/riscv: Add support for Sv57 translation mode (including second-stage translations)
Also fix Sv48x4 translation mode
-rw-r--r--src/target/riscv/riscv.c37
-rw-r--r--src/target/riscv/riscv.h2
2 files changed, 37 insertions, 2 deletions
diff --git a/src/target/riscv/riscv.c b/src/target/riscv/riscv.c
index 7962a47..0e23d51 100644
--- a/src/target/riscv/riscv.c
+++ b/src/target/riscv/riscv.c
@@ -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);
@@ -2208,6 +2234,9 @@ 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;
@@ -2230,6 +2259,9 @@ 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;
@@ -2313,6 +2345,9 @@ 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);
diff --git a/src/target/riscv/riscv.h b/src/target/riscv/riscv.h
index 6afd3c1..a9bfe33 100644
--- a/src/target/riscv/riscv.h
+++ b/src/target/riscv/riscv.h
@@ -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