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Kernel/PCI: Expose PCI option ROM data from the sysfs interface

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For each exposed PCI device in sysfs, there's a new node called "rom"
and by reading it, it exposes the raw data of a PCI option ROM blob to
a user for examining the blob.
This commit is contained in:
Liav A 2022-02-10 20:35:30 +02:00 • committed by Jelle Raaijmakers
parent 1f9d3a3523
commit a7677f1d9b
6 changed files with 155 additions and 0 deletions
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2
Kernel/FileSystem/SysFS/Subsystems/Bus/PCI/DeviceDirectory.cpp
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@ -8,6 +8,7 @@
#include <Kernel/Bus/PCI/Access.h>
#include <Kernel/FileSystem/SysFS/Subsystems/Bus/PCI/DeviceAttribute.h>
#include <Kernel/FileSystem/SysFS/Subsystems/Bus/PCI/DeviceDirectory.h>
#include <Kernel/FileSystem/SysFS/Subsystems/Bus/PCI/DeviceExpansionROM.h>
#include <Kernel/Sections.h>
namespace Kernel {
@ -34,6 +35,7 @@ UNMAP_AFTER_INIT NonnullLockRefPtr<PCIDeviceSysFSDirectory> PCIDeviceSysFSDirect
list.append(PCIDeviceAttributeSysFSComponent::create(*directory, PCI::RegisterOffset::BAR3, 4));
list.append(PCIDeviceAttributeSysFSComponent::create(*directory, PCI::RegisterOffset::BAR4, 4));
list.append(PCIDeviceAttributeSysFSComponent::create(*directory, PCI::RegisterOffset::BAR5, 4));
list.append(PCIDeviceExpansionROMSysFSComponent::create(*directory));
return {};
}));
return directory;