Add a page-level counterpart to helper_tlb_flush(), and condition its internal call to tlb_flush_page() on return value from the new sfence_vma_allowed() function.
Signed-off-by: Trevor Gamblin <[email protected]> --- target/riscv/helper.h | 1 + target/riscv/tcg/op_helper.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/target/riscv/helper.h b/target/riscv/helper.h index 4fc2d3a155..652f85a5c7 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -137,6 +137,7 @@ DEF_HELPER_1(ctr_clear, void, env) DEF_HELPER_1(wfi, void, env) DEF_HELPER_1(wrs_nto, void, env) DEF_HELPER_1(tlb_flush, void, env) +DEF_HELPER_2(tlb_flush_page, void, env, tl) DEF_HELPER_1(tlb_flush_all, void, env) DEF_HELPER_4(ctr_add_entry, void, env, tl, tl, tl) /* Native Debug */ diff --git a/target/riscv/tcg/op_helper.c b/target/riscv/tcg/op_helper.c index 8039df2b48..723a45d181 100644 --- a/target/riscv/tcg/op_helper.c +++ b/target/riscv/tcg/op_helper.c @@ -610,6 +610,13 @@ void helper_tlb_flush(CPURISCVState *env) } } +void helper_tlb_flush_page(CPURISCVState *env, target_ulong addr) +{ + if (sfence_vma_allowed(env, GETPC())) { + tlb_flush_page(env_cpu(env), addr); + } +} + void helper_tlb_flush_all(CPURISCVState *env) { CPUState *cs = env_cpu(env); -- 2.55.0
