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ahci: add test_pci_enable to ahci-test.

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This adds a test wherein we engage the PCI AHCI
device and ensure that the memory region for the
HBA functionality is now accessible.

Under Q35 environments, additional PCI configuration
is performed to ensure that the HBA functionality
will become usable.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1408643079-30675-5-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
John Snow 2014-08-21 13:44:35 -04:00 • committed by Stefan Hajnoczi
parent 8840a843dc
commit 96d6d3bad9
2 changed files with 59 additions and 0 deletions
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6
tests/libqos/pci.c
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@ -71,6 +71,12 @@ void qpci_device_enable(QPCIDevice *dev)
cmd = qpci_config_readw(dev, PCI_COMMAND);
cmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
qpci_config_writew(dev, PCI_COMMAND, cmd);
/* Verify the bits are now set. */
cmd = qpci_config_readw(dev, PCI_COMMAND);
g_assert_cmphex(cmd & PCI_COMMAND_IO, ==, PCI_COMMAND_IO);
g_assert_cmphex(cmd & PCI_COMMAND_MEMORY, ==, PCI_COMMAND_MEMORY);
g_assert_cmphex(cmd & PCI_COMMAND_MASTER, ==, PCI_COMMAND_MASTER);
}
uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id)