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hw/pci: fix pci_update_mappings() trace events

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The current trace prototypes and (matching) trace calls lead to
"unorthodox" PCI BDF notation in at least the stderr trace backend. For
example, the four BARs of a QXL video card at 00:01.0 (bus 0, slot 1,
function 0) are traced like this (PID and timestamps removed):

  pci_update_mappings_add d=0x7f14a73bf890 00:00.1 0,0x84000000+0x4000000
  pci_update_mappings_add d=0x7f14a73bf890 00:00.1 1,0x80000000+0x4000000
  pci_update_mappings_add d=0x7f14a73bf890 00:00.1 2,0x88200000+0x2000
  pci_update_mappings_add d=0x7f14a73bf890 00:00.1 3,0xd060+0x20

The slot and function values are in reverse order.

Stick with the conventional BDF notation.

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Don Koch <dkoch@verizon.com>
Cc: qemu-trivial@nongnu.org
Fixes: 7828d75045
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Laszlo Ersek 2015-09-01 23:33:23 +02:00 • committed by Michael S. Tsirkin
parent 2f8b50083b
commit 0f288f854b
2 changed files with 4 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

4
hw/pci/pci.c
View file

@ -1154,16 +1154,16 @@ static void pci_update_mappings(PCIDevice *d)
/* now do the real mapping */
if (r->addr != PCI_BAR_UNMAPPED) {
trace_pci_update_mappings_del(d, pci_bus_num(d->bus),
PCI_FUNC(d->devfn),
PCI_SLOT(d->devfn),
PCI_FUNC(d->devfn),
i, r->addr, r->size);
memory_region_del_subregion(r->address_space, r->memory);
}
r->addr = new_addr;
if (r->addr != PCI_BAR_UNMAPPED) {
trace_pci_update_mappings_add(d, pci_bus_num(d->bus),
PCI_FUNC(d->devfn),
PCI_SLOT(d->devfn),
PCI_FUNC(d->devfn),
i, r->addr, r->size);
memory_region_add_subregion_overlap(r->address_space,
r->addr, r->memory, 1);