diff options
| author | Daniel P. Berrangé <berrange@redhat.com> | 2022-12-16 07:57:46 -0500 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-12-21 06:35:28 -0500 |
| commit | c8c7c406db49a8bdf6b9e0962c4ec66a25ca1e5d (patch) | |
| tree | a5639329294bff950520edf7f429f4a2cf511709 | |
| parent | 23d8e32499a03a68e7ceef79600aed4d965480e0 (diff) | |
| download | focaccia-qemu-c8c7c406db49a8bdf6b9e0962c4ec66a25ca1e5d.tar.gz focaccia-qemu-c8c7c406db49a8bdf6b9e0962c4ec66a25ca1e5d.zip | |
hw/isa: add trace events for ICH9 LPC chip config access
These tracepoints aid in understanding and debugging the guest drivers for the TCO watchdog. Reviewed-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20221216125749.596075-3-berrange@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | hw/isa/lpc_ich9.c | 3 | ||||
| -rw-r--r-- | hw/isa/trace-events | 4 |
2 files changed, 7 insertions, 0 deletions
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c index 6c44cc9767..cea73924b4 100644 --- a/hw/isa/lpc_ich9.c +++ b/hw/isa/lpc_ich9.c @@ -52,6 +52,7 @@ #include "hw/nvram/fw_cfg.h" #include "qemu/cutils.h" #include "hw/acpi/acpi_aml_interface.h" +#include "trace.h" /*****************************************************************************/ /* ICH9 LPC PCI to ISA bridge */ @@ -162,6 +163,7 @@ static void ich9_cc_write(void *opaque, hwaddr addr, { ICH9LPCState *lpc = (ICH9LPCState *)opaque; + trace_ich9_cc_write(addr, val, len); ich9_cc_addr_len(&addr, &len); memcpy(lpc->chip_config + addr, &val, len); pci_bus_fire_intx_routing_notifier(pci_get_bus(&lpc->d)); @@ -177,6 +179,7 @@ static uint64_t ich9_cc_read(void *opaque, hwaddr addr, uint32_t val = 0; ich9_cc_addr_len(&addr, &len); memcpy(&val, lpc->chip_config + addr, len); + trace_ich9_cc_read(addr, val, len); return val; } diff --git a/hw/isa/trace-events b/hw/isa/trace-events index b8f877e1ed..c4567a9b47 100644 --- a/hw/isa/trace-events +++ b/hw/isa/trace-events @@ -21,3 +21,7 @@ via_pm_io_read(uint32_t addr, uint32_t val, int len) "addr 0x%x val 0x%x len 0x% via_pm_io_write(uint32_t addr, uint32_t val, int len) "addr 0x%x val 0x%x len 0x%x" via_superio_read(uint8_t addr, uint8_t val) "addr 0x%x val 0x%x" via_superio_write(uint8_t addr, uint32_t val) "addr 0x%x val 0x%x" + +# lpc_ich9.c +ich9_cc_write(uint64_t addr, uint64_t val, unsigned len) "addr=0x%"PRIx64 " val=0x%"PRIx64 " len=%u" +ich9_cc_read(uint64_t addr, uint64_t val, unsigned len) "addr=0x%"PRIx64 " val=0x%"PRIx64 " len=%u" |