[Xen-devel] [PATCH 1/1] xen-hvm: Add trace to ioreq

[Don Slutz <dslutz@xxxxxxxxxxx>]

Signed-off-by: Don Slutz <dslutz@xxxxxxxxxxx>
(cherry picked from commit b72adbe7510d0a30053d32334665ee887bec9e43)
---
 trace-events |  7 +++++++
 xen-hvm.c    | 21 +++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/trace-events b/trace-events
index 30eba92..4666dad 100644
--- a/trace-events
+++ b/trace-events
@@ -932,6 +932,13 @@ xen_map_portio_range(uint32_t id, uint64_t start_addr, 
uint64_t end_addr) "id: %
 xen_unmap_portio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) 
"id: %u start: %#"PRIx64" end: %#"PRIx64
 xen_map_pcidev(uint32_t id, uint8_t bus, uint8_t dev, uint8_t func) "id: %u 
bdf: %02x.%02x.%02x"
 xen_unmap_pcidev(uint32_t id, uint8_t bus, uint8_t dev, uint8_t func) "id: %u 
bdf: %02x.%02x.%02x"
+handle_ioreq(void *req, uint32_t type, uint32_t dir, uint32_t df, uint32_t 
data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) 
"I/O=%p type=%d dir=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d 
size=%d"
+handle_ioreq_read(void *req, uint32_t type, uint32_t df, uint32_t data_is_ptr, 
uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p read 
type=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
+handle_ioreq_write(void *req, uint32_t type, uint32_t df, uint32_t 
data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) 
"I/O=%p write type=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d 
size=%d"
+cpu_ioreq_pio(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, 
uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p pio dir=%d 
df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
+cpu_ioreq_pio_read_reg(void *req, uint64_t data, uint64_t addr, uint32_t size) 
"I/O=%p pio read reg data=%#"PRIx64" port=%#"PRIx64" size=%d"
+cpu_ioreq_pio_write_reg(void *req, uint64_t data, uint64_t addr, uint32_t 
size) "I/O=%p pio write reg data=%#"PRIx64" port=%#"PRIx64" size=%d"
+cpu_ioreq_move(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, 
uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p copy 
dir=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
 
 # xen-mapcache.c
 xen_map_cache(uint64_t phys_addr) "want %#"PRIx64
diff --git a/xen-hvm.c b/xen-hvm.c
index 315864c..6fdba98 100644
--- a/xen-hvm.c
+++ b/xen-hvm.c
@@ -832,9 +832,14 @@ static void cpu_ioreq_pio(ioreq_t *req)
 {
     uint32_t i;
 
+    trace_cpu_ioreq_pio(req, req->dir, req->df, req->data_is_ptr, req->addr,
+                         req->data, req->count, req->size);
+
     if (req->dir == IOREQ_READ) {
         if (!req->data_is_ptr) {
             req->data = do_inp(req->addr, req->size);
+            trace_cpu_ioreq_pio_read_reg(req, req->data, req->addr,
+                                         req->size);
         } else {
             uint32_t tmp;
 
@@ -845,6 +850,8 @@ static void cpu_ioreq_pio(ioreq_t *req)
         }
     } else if (req->dir == IOREQ_WRITE) {
         if (!req->data_is_ptr) {
+            trace_cpu_ioreq_pio_write_reg(req, req->data, req->addr,
+                                          req->size);
             do_outp(req->addr, req->size, req->data);
         } else {
             for (i = 0; i < req->count; i++) {
@@ -861,6 +868,9 @@ static void cpu_ioreq_move(ioreq_t *req)
 {
     uint32_t i;
 
+    trace_cpu_ioreq_move(req, req->dir, req->df, req->data_is_ptr, req->addr,
+                         req->data, req->count, req->size);
+
     if (!req->data_is_ptr) {
         if (req->dir == IOREQ_READ) {
             for (i = 0; i < req->count; i++) {
@@ -933,11 +943,18 @@ static void handle_vmport_ioreq(XenIOState *state, 
ioreq_t *req)
 
 static void handle_ioreq(XenIOState *state, ioreq_t *req)
 {
+    trace_handle_ioreq(req, req->type, req->dir, req->df, req->data_is_ptr,
+                       req->addr, req->data, req->count, req->size);
+
     if (!req->data_is_ptr && (req->dir == IOREQ_WRITE) &&
             (req->size < sizeof (target_ulong))) {
         req->data &= ((target_ulong) 1 << (8 * req->size)) - 1;
     }
 
+    if (req->dir == IOREQ_WRITE)
+        trace_handle_ioreq_write(req, req->type, req->df, req->data_is_ptr,
+                                 req->addr, req->data, req->count, req->size);
+
     switch (req->type) {
         case IOREQ_TYPE_PIO:
             cpu_ioreq_pio(req);
@@ -977,6 +994,10 @@ static void handle_ioreq(XenIOState *state, ioreq_t *req)
         default:
             hw_error("Invalid ioreq type 0x%x\n", req->type);
     }
+    if (req->dir == IOREQ_READ) {
+        trace_handle_ioreq_read(req, req->type, req->df, req->data_is_ptr,
+                                req->addr, req->data, req->count, req->size);
+    }
 }
 
 static int handle_buffered_iopage(XenIOState *state)
-- 
1.8.4


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