[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PULL 3/6] pci: add config space access traces
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 3/6] pci: add config space access traces |
Date: |
Mon, 2 Sep 2013 11:07:13 +0300 |
From: Alexey Kardashevskiy <address@hidden>
This adds pci_cfg_read and pci_cfg_write traces for config spaces
accesses.
Signed-off-by: Alexey Kardashevskiy <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
hw/pci/pci_host.c | 11 ++++++++++-
trace-events | 4 ++++
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/hw/pci/pci_host.c b/hw/pci/pci_host.c
index 7dd9b25..77c7d1f 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 +52,22 @@ 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, PCI_SLOT(pci_dev->devfn),
+ PCI_FUNC(pci_dev->devfn), 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, PCI_SLOT(pci_dev->devfn),
+ PCI_FUNC(pci_dev->devfn), 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..9d1d1df 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 devid, unsigned fnid, unsigned offs,
unsigned val) "%s %02u:%u @0x%x -> 0x%x"
+pci_cfg_write(const char *dev, unsigned devid, unsigned fnid, unsigned offs,
unsigned val) "%s %02u:%u @0x%x <- 0x%x"
--
MST
- [Qemu-devel] [PULL 0/6] pc,pci,virtio fixes and cleanups, Michael S. Tsirkin, 2013/09/02
- [Qemu-devel] [PULL 1/6] pci: Introduce helper to retrieve a PCI device's DMA address space, Michael S. Tsirkin, 2013/09/02
- [Qemu-devel] [PULL 2/6] pc: fix regression for 64 bit PCI memory, Michael S. Tsirkin, 2013/09/02
- [Qemu-devel] [PULL 3/6] pci: add config space access traces,
Michael S. Tsirkin <=
- [Qemu-devel] [PULL 5/6] pc: reduce duplication, fix PIIX descriptions, Michael S. Tsirkin, 2013/09/02
- [Qemu-devel] [PULL 6/6] virtio_pci: fix level interrupts with irqfd, Michael S. Tsirkin, 2013/09/02
- [Qemu-devel] [PULL 4/6] hw: Clean up bogus default boot order, Michael S. Tsirkin, 2013/09/02