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kvm, pci: Fix offset for pci CONFIG_DATA ioport

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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
This commit is contained in:
Cyrill Gorcunov
2015-06-01 16:39:40 +01:00
committed by Will Deacon
parent 2b9e47096f
commit 70d08766ef
1 changed files with 9 additions and 9 deletions
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pci.c
+9 -9
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@@ -60,17 +60,16 @@ static bool pci_config_data_in(struct kvm *self, uint16_t port, void *data, int
/*
* If someone accesses PCI configuration space offsets that are not
* aligned to 4 bytes, it uses iports to signify that.
* aligned to 4 bytes, it uses ioports to signify that.
*/
start = port - PCI_CONFIG_ADDRESS;
start = port - PCI_CONFIG_DATA;
if (pci_device_matches(0, 1, 0)) {
unsigned long offset;
offset = start + (pci_config_address.register_number << 2);
offset = start + (pci_config_address.register_number << 2);
if (offset < sizeof(struct pci_device_header)) {
void *p = &virtio_device;
memcpy(data, p + offset, size);
} else
memset(data, 0x00, size);
@@ -87,9 +86,10 @@ static struct ioport_operations pci_config_data_ops = {
void pci__init(void)
{
ioport__register(PCI_CONFIG_DATA, &pci_config_data_ops);
ioport__register(PCI_CONFIG_ADDRESS + 0, &pci_config_address_ops);
ioport__register(PCI_CONFIG_ADDRESS + 1, &pci_config_address_ops);
ioport__register(PCI_CONFIG_ADDRESS + 2, &pci_config_address_ops);
ioport__register(PCI_CONFIG_ADDRESS + 3, &pci_config_address_ops);
ioport__register(PCI_CONFIG_DATA + 0, &pci_config_data_ops);
ioport__register(PCI_CONFIG_DATA + 1, &pci_config_data_ops);
ioport__register(PCI_CONFIG_DATA + 2, &pci_config_data_ops);
ioport__register(PCI_CONFIG_DATA + 3, &pci_config_data_ops);
ioport__register(PCI_CONFIG_ADDRESS, &pci_config_address_ops);
}