target/riscv: support cache-related PMU events in virtual mode

let tlb_fill() function also increments PMU counter when it is from
two-stage translation, so QEMU could also monitor these PMU events when
CPU runs in VS/VU mode (like running guest OS).

Signed-off-by: Jim Shu <jim.shu@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221123090635.6574-1-jim.shu@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index 427d4d43862ca61f8c2d9151eb6826ce29008939..1ff6ab574641ce7fa301dcdbec396d84efd091d9 100644 (file)
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -1258,6 +1258,7 @@ bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
         }
     }
 
+    pmu_tlb_fill_incr_ctr(cpu, access_type);
     if (riscv_cpu_virt_enabled(env) ||
         ((riscv_cpu_two_stage_lookup(mmu_idx) || two_stage_lookup) &&
          access_type != MMU_INST_FETCH)) {
@@ -1321,7 +1322,6 @@ bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
             }
         }
     } else {
-        pmu_tlb_fill_incr_ctr(cpu, access_type);
         /* Single stage lookup */
         ret = get_physical_address(env, &pa, &prot, address, NULL,
                                    access_type, mmu_idx, true, false, false);