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Kernel: Add /proc/pci so we can see what's on the PCI bus.

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This commit is contained in:
Andreas Kling 2019-02-06 10:29:35 +01:00
parent 731fc5a7c8
commit b3b28b8b15
1 changed files with 12 additions and 3 deletions
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15
Kernel/ProcFS.cpp
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@ -8,6 +8,7 @@
#include "KSyms.h"
#include "Console.h"
#include "Scheduler.h"
#include <Kernel/PCI.h>
#include <AK/StringBuilder.h>
#include <LibC/errno_numbers.h>
@ -33,6 +34,7 @@ enum ProcFileType {
FI_Root_cpuinfo,
FI_Root_inodes,
FI_Root_dmesg,
FI_Root_pci,
FI_Root_self, // symlink
FI_Root_sys, // directory
__FI_Root_End,
@ -204,9 +206,6 @@ ByteBuffer procfs$pid_fd_entry(InodeIdentifier identifier)
ByteBuffer procfs$pid_vm(InodeIdentifier identifier)
{
#ifdef PROCFS_DEBUG
dbgprintf("pid_vm: pid=%d\n", to_pid(identifier));
#endif
auto handle = ProcessInspectionHandle::from_pid(to_pid(identifier));
if (!handle)
return { };
@ -224,6 +223,15 @@ ByteBuffer procfs$pid_vm(InodeIdentifier identifier)
return builder.to_byte_buffer();
}
ByteBuffer procfs$pci(InodeIdentifier)
{
StringBuilder builder;
PCI::enumerate_all([&builder] (PCI::Address address, PCI::ID id) {
builder.appendf("%b:%b.%b %w:%w\n", address.bus(), address.slot(), address.function(), id.vendor_id, id.device_id);
});
return builder.to_byte_buffer();
}
ByteBuffer procfs$pid_vmo(InodeIdentifier identifier)
{
auto handle = ProcessInspectionHandle::from_pid(to_pid(identifier));
@ -1009,6 +1017,7 @@ ProcFS::ProcFS()
m_entries[FI_Root_inodes] = { "inodes", FI_Root_inodes, procfs$inodes };
m_entries[FI_Root_dmesg] = { "dmesg", FI_Root_dmesg, procfs$dmesg };
m_entries[FI_Root_self] = { "self", FI_Root_self, procfs$self };
m_entries[FI_Root_pci] = { "pci", FI_Root_pci, procfs$pci };
m_entries[FI_Root_sys] = { "sys", FI_Root_sys };
m_entries[FI_PID_vm] = { "vm", FI_PID_vm, procfs$pid_vm };