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acpi_drv: add size attribute to drhd

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genodelabs/genode#5002
This commit is contained in:
Johannes Schlatow 2023-08-18 16:33:54 +02:00
parent a90e0e249e
commit 7b99a43c9e
1 changed files with 5 additions and 0 deletions
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5
repos/os/src/drivers/acpi/acpi.cc
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@ -198,6 +198,8 @@ struct Dmar_drhd : Genode::Mmio
{
struct Length : Register<0x2, 16> { };
struct Flags : Register<0x4, 8> { };
struct Size : Register<0x5, 8> {
struct Num_pages : Bitfield<0,4> { }; };
struct Segment : Register<0x6, 16> { };
struct Phys : Register<0x8, 64> { };
@ -1672,10 +1674,13 @@ void Acpi::generate_report(Genode::Env &env, Genode::Allocator &alloc)
if (dmar.read<Dmar_common::Type>() == Dmar_common::Type::DRHD) {
Dmar_drhd drhd(dmar.base());
size_t size_log2 = drhd.read<Dmar_drhd::Size::Num_pages>() + 12;
xml.node("drhd", [&] () {
attribute_hex(xml, "phys", drhd.read<Dmar_drhd::Phys>());
attribute_hex(xml, "flags", drhd.read<Dmar_drhd::Flags>());
attribute_hex(xml, "segment", drhd.read<Dmar_drhd::Segment>());
attribute_hex(xml, "size", 1 << size_log2);
drhd.apply(func_scope);
});
}