From 3bf4dfdd1110de84ca0cecff0679cf7da90bfbfe Mon Sep 17 00:00:00 2001 From: Alexey Kardashevskiy Date: Wed, 21 Aug 2013 14:42:06 +1000 Subject: pci: add config space access traces This adds pci_cfg_read and pci_cfg_write traces for config spaces accesses. Signed-off-by: Alexey Kardashevskiy Signed-off-by: Michael S. Tsirkin --- 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 7dd9b25609..77c7d1f86b 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 3856b5c206..9d1d1df89d 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" -- cgit v1.2.1