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-rw-r--r--p/riscv_test.h4
-rw-r--r--v/vm.c9
2 files changed, 6 insertions, 7 deletions
diff --git a/p/riscv_test.h b/p/riscv_test.h
index 52d7fe9..e28c5e5 100644
--- a/p/riscv_test.h
+++ b/p/riscv_test.h
@@ -58,9 +58,9 @@
csrw mtvec, t0; \
csrwi sptbr, 0; \
li t0, -1; /* Set up a PMP to permit all accesses */ \
- csrw CSR_PMPADDR0, t0; \
+ csrw pmpaddr0, t0; \
li t0, PMP_EN | PMP_NAPOT | PMP_M | PMP_R | PMP_W | PMP_X; \
- csrw CSR_PMPCFG0, t0; \
+ csrw pmpcfg0, t0; \
1:
#define RVTEST_ENABLE_SUPERVISOR \
diff --git a/v/vm.c b/v/vm.c
index bdbab6a..51cd1a3 100644
--- a/v/vm.c
+++ b/v/vm.c
@@ -231,12 +231,11 @@ void vm_boot(uintptr_t test_addr)
// Set up PMPs if present, ignoring illegal instruction trap if not.
uintptr_t pmpc = PMP_EN | PMP_NAPOT | PMP_M | PMP_R | PMP_W | PMP_X;
asm volatile ("la t0, 1f\n\t"
- "csrw mtvec, t0\n\t"
- "csrw %2, %3\n\t"
- "csrw %0, %1\n\t"
+ "csrrw t0, mtvec, t0\n\t"
+ "csrw pmpaddr0, %1\n\t"
+ "csrw pmpcfg0, %0\n\t"
"1:"
- :: "i" (CSR_PMPCFG0), "r" (pmpc), "i" (CSR_PMPADDR0), "r" (-1)
- : "t0");
+ : : "r" (pmpc), "r" (-1UL) : "t0");
// set up supervisor trap handling
write_csr(stvec, pa2kva(trap_entry));