Zishun Yi 73bc794b40 lib: sbi_domain_context: Flush TLB after SATP mode switch ...

When switching between domains with different satp.MODE values (e.g.
Sv39 to Sv48), the RISC-V ISA permits hardware to use cached translations
from the old virtual-address width if no SFENCE.VMA intervenes. This
constrained-unpredictable behavior is clarified in riscv-isa-manual
PR #2219.

The hart protection re-configuration will anyway do full SFENCE / HFENCE
so move the hart protection re-configuration after register context switch
in switch_to_next_domain_context() to ensure translations from the new
domain's address width are used.

Link: https://github.com/riscv/riscv-isa-manual/pull/2219
Signed-off-by: Zishun Yi <vulab@iscas.ac.cn>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260429181747.160033-1-vulab@iscas.ac.cn
Signed-off-by: Anup Patel <anup@brainfault.org>

2026-06-09 22:12:48 +05:30

..

sbi

lib: sbi_domain_context: Flush TLB after SATP mode switch

2026-06-09 22:12:48 +05:30

utils

lib: utils/reset: Remove unused match data

2026-05-22 10:31:41 +05:30