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riscv: Add DEFINE_MPRV_READ_MXR to read execution-only page 

Must to set MXR, when needs to read the page which is execution-only.
So make this change.

Change-Id: I19519782fe791982a8fbd48ef33b5a92a3c48bfc
Signed-off-by: Xiang Wang <wxjstz@126.com>
Reviewed-on: https://review.coreboot.org/28394
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
This commit is contained in:
Xiang Wang 2018-08-30 13:47:12 +08:00 committed by Patrick Georgi
parent fb758d420b
commit 33354ddaa8
1 changed files with 16 additions and 3 deletions
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19
src/arch/riscv/include/vm.h
View File

@ -38,11 +38,11 @@
void mstatus_init(void); // need to setup mstatus so we know we have virtual memory
#define DEFINE_MPRV_READ(name, type, insn) \
#define DEFINE_MPRV_READ_FLAGS(name, type, insn, flags) \
static inline type name(type *p); \
static inline type name(type *p) \
{ \
size_t mprv = MSTATUS_MPRV; \
size_t mprv = flags; \
type value; \
asm ( \
"csrs mstatus, %1\n" \
@ -53,6 +53,12 @@ void mstatus_init(void); // need to setup mstatus so we know we have virtual mem
return value; \
}
#define DEFINE_MPRV_READ(name, type, insn) \
DEFINE_MPRV_READ_FLAGS(name, type, insn, MSTATUS_MPRV)
#define DEFINE_MPRV_READ_MXR(name, type, insn) \
DEFINE_MPRV_READ_FLAGS(name, type, insn, MSTATUS_MPRV | MSTATUS_MXR)
#define DEFINE_MPRV_WRITE(name, type, insn) \
static inline void name(type *p, type value); \
static inline void name(type *p, type value) \
@ -83,6 +89,12 @@ DEFINE_MPRV_READ(mprv_read_u32, uint32_t, lwu)
DEFINE_MPRV_READ(mprv_read_u64, uint64_t, ld)
DEFINE_MPRV_READ(mprv_read_long, long, ld)
DEFINE_MPRV_READ(mprv_read_ulong, unsigned long, ld)
DEFINE_MPRV_READ_MXR(mprv_read_mxr_u8, uint8_t, lbu)
DEFINE_MPRV_READ_MXR(mprv_read_mxr_u16, uint16_t, lhu)
DEFINE_MPRV_READ_MXR(mprv_read_mxr_u32, uint32_t, lwu)
DEFINE_MPRV_READ_MXR(mprv_read_mxr_u64, uint64_t, ld)
DEFINE_MPRV_READ_MXR(mprv_read_mxr_long, long, ld)
DEFINE_MPRV_READ_MXR(mprv_read_mxr_ulong, unsigned long, ld)
DEFINE_MPRV_WRITE(mprv_write_u8, uint8_t, sb)
DEFINE_MPRV_WRITE(mprv_write_u16, uint16_t, sh)
DEFINE_MPRV_WRITE(mprv_write_u32, uint32_t, sw)
@ -90,8 +102,9 @@ DEFINE_MPRV_WRITE(mprv_write_u64, uint64_t, sd)
DEFINE_MPRV_WRITE(mprv_write_long, long, sd)
DEFINE_MPRV_WRITE(mprv_write_ulong, unsigned long, sd)
#undef DEFINE_MPRV_READ_FLAGS
#undef DEFINE_MPRV_READ
#undef DEFINE_MPRV_READ_MXR
#undef DEFINE_MPRV_WRITE
#endif