On Sun, Feb 21, 2021 at 10:33 AM Jim Shu <cw...@andestech.com> wrote: > > Sorry for sending this patch set again. > The cover letter of my previous mail doesn't add cc list. > --- > > Current implementation of PMP permission checking only has effect when > softmmu's TLB miss. PMP checking is bypassed when TLB hits because TLB page > permission isn't affected by PMP permission. > > To fix this issue, this patch set addes the feature to propagate PMP > permission to the TLB page and flush TLB pages if PMP permission has > been changed. > > The patch set is tested on Zephyr RTOS userspace testsuite on QEMU riscv32 > virt machine. > > Jim Shu (3): > target/riscv: propagate PMP permission to TLB page > target/riscv: add log of PMP permission checking > target/riscv: flush TLB pages if PMP permission has been changed
Thanks! Applied to riscv-to-apply.next Alistair > > target/riscv/cpu_helper.c | 96 ++++++++++++++++++++++++++++++--------- > target/riscv/pmp.c | 84 +++++++++++++++++++++++++--------- > target/riscv/pmp.h | 4 +- > 3 files changed, 141 insertions(+), 43 deletions(-) > > -- > 2.30.1 > >
