This adds pci_cfg_read and pci_cfg_write traces for config spaces accesses.
Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
---
hw/pci/pci_host.c | 9 ++++++++-
trace-events | 4 ++++
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/hw/pci/pci_host.c b/hw/pci/pci_host.c
index 7dd9b25..f1ba5ae 100644
--- a/hw/pci/pci_host.c
+++ b/hw/pci/pci_host.c
@@ -20,6 +20,7 @@
#include "hw/pci/pci.h"
#include "hw/pci/pci_host.h"
+#include "trace.h"
/* debug PCI */
//#define DEBUG_PCI
@@ -51,14 +52,20 @@ void pci_host_config_write_common(PCIDevice *pci_dev,
uint32_t addr,
uint32_t limit, uint32_t val, uint32_t len)
{
assert(len <= 4);
+ trace_pci_cfg_write(pci_dev->name, addr, val);
pci_dev->config_write(pci_dev, addr, val, MIN(len, limit - addr));
}
uint32_t pci_host_config_read_common(PCIDevice *pci_dev, uint32_t addr,
uint32_t limit, uint32_t len)
{
+ uint32_t ret;
+
assert(len <= 4);
- return pci_dev->config_read(pci_dev, addr, MIN(len, limit - addr));
+ ret = pci_dev->config_read(pci_dev, addr, MIN(len, limit - addr));
+ trace_pci_cfg_read(pci_dev->name, addr, ret);
+
+ return ret;
}
void pci_data_write(PCIBus *s, uint32_t addr, uint32_t val, int len)
diff --git a/trace-events b/trace-events
index 3856b5c..1f0ebf1 100644
--- a/trace-events
+++ b/trace-events
@@ -1176,3 +1176,7 @@ object_class_dynamic_cast_assert(const char *type, const
char *target, const cha
# hw/xen/xen_pvdevice.c
xen_pv_mmio_read(uint64_t addr) "WARNING: read from Xen PV Device MMIO space
(address %"PRIx64")"
xen_pv_mmio_write(uint64_t addr) "WARNING: write to Xen PV Device MMIO space
(address %"PRIx64")"
+
+# hw/pci/pci_host.c
+pci_cfg_read(const char *dev, unsigned offs, unsigned val) "%s @0x%x 0x%x"
+pci_cfg_write(const char *dev, unsigned offs, unsigned val) "%s @0x%x 0x%x"
--
1.8.3.2
