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| author | Hesham Almatary | 2019-05-30 15:51:32 +0200 |
|---|---|---|
| committer | Palmer Dabbelt | 2019-06-24 08:44:41 +0200 |
| commit | cc0fdb298517ce56c770803447f8b02a90271152 (patch) | |
| tree | f256b619745fc8f83120e57cd0da25287d279399 /include/exec/exec-all.h | |
| parent | RISC-V: Raise access fault exceptions on PMP violations (diff) | |
| download | qemu-cc0fdb298517ce56c770803447f8b02a90271152.tar.gz qemu-cc0fdb298517ce56c770803447f8b02a90271152.tar.xz qemu-cc0fdb298517ce56c770803447f8b02a90271152.zip | |
RISC-V: Check for the effective memory privilege mode during PMP checks
The current PMP check function checks for env->priv which is not the effective
memory privilege mode.
For example, mstatus.MPRV could be set while executing in M-Mode, and in that
case the privilege mode for the PMP check should be S-Mode rather than M-Mode
(in env->priv) if mstatus.MPP == PRV_S.
This patch passes the effective memory privilege mode to the PMP check.
Functions that call the PMP check should pass the correct memory privilege mode
after reading mstatus' MPRV/MPP or hstatus.SPRV (if Hypervisor mode exists).
Suggested-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Hesham Almatary <Hesham.Almatary@cl.cam.ac.uk>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'include/exec/exec-all.h')
0 files changed, 0 insertions, 0 deletions