[PATCH v4 09/66] trace/kvm: Add trace for page convertion between shared and private

[Xiaoyao Li <xiaoyao.li@xxxxxxxxx>]

From: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>

Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>
Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx>
---
 accel/kvm/kvm-all.c    | 2 ++
 accel/kvm/trace-events | 1 +
 2 files changed, 3 insertions(+)

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 2421b8a5b314..def2b46b9de2 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -2902,6 +2902,8 @@ static int kvm_convert_memory(hwaddr start, hwaddr size, bool to_private)
     void *addr;
     int ret = -1;
 
+    trace_kvm_convert_memory(start, size, to_private ? "shared_to_private" : "private_to_shared");
+
     if (!QEMU_PTR_IS_ALIGNED(start, qemu_host_page_size) ||
         !QEMU_PTR_IS_ALIGNED(size, qemu_host_page_size)) {
         return -1;
diff --git a/accel/kvm/trace-events b/accel/kvm/trace-events
index e8c52cb9e7a1..31175fed97ce 100644
--- a/accel/kvm/trace-events
+++ b/accel/kvm/trace-events
@@ -31,3 +31,4 @@ kvm_cpu_exec(void) ""
 kvm_interrupt_exit_request(void) ""
 kvm_io_window_exit(void) ""
 kvm_run_exit_system_event(int cpu_index, uint32_t event_type) "cpu_index %d, system_even_type %"PRIu32
+kvm_convert_memory(uint64_t start, uint64_t size, const char *msg) "start 0x%" PRIx64 " size 0x%" PRIx64 " %s"
-- 
2.34.1