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| author | Emilio G. Cota <cota@braap.org> | 2018-10-21 13:24:26 -0400 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2019-10-28 15:12:38 +0000 |
| commit | e6d86bed50d20101c565e149c33e07a5cc764c72 (patch) | |
| tree | 38b1cae5b419a737c03621f40c24b91bf63704e2 /accel | |
| parent | cfec388518d299e77d26b93d92c33442f4daa62b (diff) | |
| download | qemu-e6d86bed50d20101c565e149c33e07a5cc764c72.zip qemu-e6d86bed50d20101c565e149c33e07a5cc764c72.tar.gz qemu-e6d86bed50d20101c565e149c33e07a5cc764c72.tar.bz2 | |
tcg: let plugins instrument virtual memory accesses
To capture all memory accesses we need hook into all the various
helper functions that are involved in memory operations as well as the
injected inline helper calls. A later commit will allow us to resolve
the actual guest HW addresses by replaying the lookup.
Signed-off-by: Emilio G. Cota <cota@braap.org>
[AJB: drop haddr handling, just deal in vaddr]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel')
| -rw-r--r-- | accel/tcg/atomic_common.inc.c | 4 | ||||
| -rw-r--r-- | accel/tcg/atomic_template.h | 1 | ||||
| -rw-r--r-- | accel/tcg/cpu-exec.c | 3 |
3 files changed, 8 insertions, 0 deletions
diff --git a/accel/tcg/atomic_common.inc.c b/accel/tcg/atomic_common.inc.c index a86098f..344525b 100644 --- a/accel/tcg/atomic_common.inc.c +++ b/accel/tcg/atomic_common.inc.c @@ -25,6 +25,8 @@ void atomic_trace_rmw_pre(CPUArchState *env, target_ulong addr, uint16_t info) static inline void atomic_trace_rmw_post(CPUArchState *env, target_ulong addr, uint16_t info) { + qemu_plugin_vcpu_mem_cb(env_cpu(env), addr, info); + qemu_plugin_vcpu_mem_cb(env_cpu(env), addr, info | TRACE_MEM_ST); } static inline @@ -36,6 +38,7 @@ void atomic_trace_ld_pre(CPUArchState *env, target_ulong addr, uint16_t info) static inline void atomic_trace_ld_post(CPUArchState *env, target_ulong addr, uint16_t info) { + qemu_plugin_vcpu_mem_cb(env_cpu(env), addr, info); } static inline @@ -47,4 +50,5 @@ void atomic_trace_st_pre(CPUArchState *env, target_ulong addr, uint16_t info) static inline void atomic_trace_st_post(CPUArchState *env, target_ulong addr, uint16_t info) { + qemu_plugin_vcpu_mem_cb(env_cpu(env), addr, info); } diff --git a/accel/tcg/atomic_template.h b/accel/tcg/atomic_template.h index 84d3370..8376762 100644 --- a/accel/tcg/atomic_template.h +++ b/accel/tcg/atomic_template.h @@ -18,6 +18,7 @@ * License along with this library; if not, see <http://www.gnu.org/licenses/>. */ +#include "qemu/plugin.h" #include "trace/mem.h" #if DATA_SIZE == 16 diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index 81c33d6..c01f59c 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -268,6 +268,7 @@ void cpu_exec_step_atomic(CPUState *cpu) qemu_mutex_unlock_iothread(); } assert_no_pages_locked(); + qemu_plugin_disable_mem_helpers(cpu); } if (cpu_in_exclusive_context(cpu)) { @@ -701,6 +702,8 @@ int cpu_exec(CPUState *cpu) if (qemu_mutex_iothread_locked()) { qemu_mutex_unlock_iothread(); } + qemu_plugin_disable_mem_helpers(cpu); + assert_no_pages_locked(); } |