diff options
| author | Max Chou <max.chou@sifive.com> | 2024-06-20 16:22:20 +0100 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2024-06-24 10:15:23 +0100 |
| commit | fce3d48038e9f38e3e342a59f76c7f9f9b043ed2 (patch) | |
| tree | 575744e007e6647e569f465b4125bdea8ae9e38e /accel | |
| parent | ca7d7f4276d4fd4711b693a78fec79652cf2ffc5 (diff) | |
accel/tcg: Avoid unnecessary call overhead from qemu_plugin_vcpu_mem_cb
If there are not any QEMU plugin memory callback functions, checking
before calling the qemu_plugin_vcpu_mem_cb function can reduce the
function call overhead.
Signed-off-by: Max Chou <max.chou@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-Id: <20240613175122.1299212-2-max.chou@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240620152220.2192768-13-alex.bennee@linaro.org>
Diffstat (limited to 'accel')
| -rw-r--r-- | accel/tcg/ldst_common.c.inc | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/accel/tcg/ldst_common.c.inc b/accel/tcg/ldst_common.c.inc index c82048e377..87ceb95487 100644 --- a/accel/tcg/ldst_common.c.inc +++ b/accel/tcg/ldst_common.c.inc @@ -125,7 +125,9 @@ void helper_st_i128(CPUArchState *env, uint64_t addr, Int128 val, MemOpIdx oi) static void plugin_load_cb(CPUArchState *env, abi_ptr addr, MemOpIdx oi) { - qemu_plugin_vcpu_mem_cb(env_cpu(env), addr, oi, QEMU_PLUGIN_MEM_R); + if (cpu_plugin_mem_cbs_enabled(env_cpu(env))) { + qemu_plugin_vcpu_mem_cb(env_cpu(env), addr, oi, QEMU_PLUGIN_MEM_R); + } } uint8_t cpu_ldb_mmu(CPUArchState *env, abi_ptr addr, MemOpIdx oi, uintptr_t ra) @@ -188,7 +190,9 @@ Int128 cpu_ld16_mmu(CPUArchState *env, abi_ptr addr, static void plugin_store_cb(CPUArchState *env, abi_ptr addr, MemOpIdx oi) { - qemu_plugin_vcpu_mem_cb(env_cpu(env), addr, oi, QEMU_PLUGIN_MEM_W); + if (cpu_plugin_mem_cbs_enabled(env_cpu(env))) { + qemu_plugin_vcpu_mem_cb(env_cpu(env), addr, oi, QEMU_PLUGIN_MEM_W); + } } void cpu_stb_mmu(CPUArchState *env, abi_ptr addr, uint8_t val, |