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Kernel: Reorder VirtIODevice PCI initialization steps

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We can't reset the device before we've read the PCI configuration
space, because we read the reset register location from the
configuration space.
This commit is contained in:
Sahan Fernando 2021-05-15 22:14:06 +10:00 • committed by Linus Groh
commit cbc845c8a8
Notes: sideshowbarker 2024-07-18 18:04:38 +09:00
1 changed files with 3 additions and 3 deletions
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6
Kernel/VirtIO/VirtIO.cpp
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@ -48,9 +48,6 @@ VirtIODevice::VirtIODevice(PCI::Address address, String class_name)
PCI::enable_interrupt_line(pci_address());
enable_irq();
reset_device();
set_status_bit(DEVICE_STATUS_ACKNOWLEDGE);
auto capabilities = PCI::get_physical_id(address).capabilities();
for (auto& capability : capabilities) {
if (capability.id() == PCI_CAPABILITY_VENDOR_SPECIFIC) {
@ -90,6 +87,9 @@ VirtIODevice::VirtIODevice(PCI::Address address, String class_name)
m_isr_cfg = get_config(ConfigurationType::ISR, 0);
}
reset_device();
set_status_bit(DEVICE_STATUS_ACKNOWLEDGE);
set_status_bit(DEVICE_STATUS_DRIVER);
}