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Kernel: Enable PCI ECAM method again if available

Apparently we don't enable PCI ECAM (MMIO access to the PCI
configuration space) even if we can. This is a regression, as it was
enabled in the past and in unknown time it was regressed.

The CommandLine::is_mmio_enabled method was renamed to
CommandLine::is_pci_ecam_enabled to better represent the meaning
of this method and what it determines.

Also, an UNMAP_AFTER_INIT macro was removed from a method
in the MMIOAccess class as it halted the system when the kernel
tried to access devices after the boot process.
This commit is contained in:
Liav A 2021-04-03 13:29:07 +03:00 committed by Andreas Kling
parent d09cd85b6c
commit 441e374396
4 changed files with 10 additions and 5 deletions

View file

@ -108,9 +108,14 @@ UNMAP_AFTER_INIT bool CommandLine::is_vmmouse_enabled() const
return lookup("vmmouse").value_or("on") == "on";
}
UNMAP_AFTER_INIT bool CommandLine::is_mmio_enabled() const
UNMAP_AFTER_INIT bool CommandLine::is_pci_ecam_enabled() const
{
return lookup("pci_mmio").value_or("off") == "on";
auto value = lookup("pci_ecam").value_or("on");
if (value == "on")
return true;
if (value == "off")
return false;
PANIC("Unknown PCI ECAM setting: {}", value);
}
UNMAP_AFTER_INIT bool CommandLine::is_legacy_time_enabled() const