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pcie: Fix bug in pcie_ext_cap_set_next

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Upper 16 bits of the PCIe Extended Capability Header was truncated during update,
also breaking pcie_add_capability.

Signed-off-by: Knut Omang <knut.omang@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Knut Omang 2012-12-18 22:36:29 +01:00 committed by Michael S. Tsirkin
parent d2a0ccc613
commit 812d2594d5
1 changed files with 1 additions and 1 deletions
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2
hw/pci/pcie.c
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@ -494,7 +494,7 @@ uint16_t pcie_find_capability(PCIDevice *dev, uint16_t cap_id)
static void pcie_ext_cap_set_next(PCIDevice *dev, uint16_t pos, uint16_t next) static void pcie_ext_cap_set_next(PCIDevice *dev, uint16_t pos, uint16_t next)
{ {
uint16_t header = pci_get_long(dev->config + pos); uint32_t header = pci_get_long(dev->config + pos);
assert(!(next & (PCI_EXT_CAP_ALIGN - 1))); assert(!(next & (PCI_EXT_CAP_ALIGN - 1)));
header = (header & ~PCI_EXT_CAP_NEXT_MASK) | header = (header & ~PCI_EXT_CAP_NEXT_MASK) |
((next << PCI_EXT_CAP_NEXT_SHIFT) & PCI_EXT_CAP_NEXT_MASK); ((next << PCI_EXT_CAP_NEXT_SHIFT) & PCI_EXT_CAP_NEXT_MASK);