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base-nova: allow access to IOAPIC

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This allows the platform driver to control remapping of legacy
interrupts.

genodelabs/genode#5066
This commit is contained in:
Johannes Schlatow 2024-03-25 12:57:51 +01:00 committed by Christian Helmuth
parent b07107c8c6
commit a0366120ef
2 changed files with 15 additions and 1 deletions
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14
repos/base-nova/patches/allow_ioapic_access.patch Normal file
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diff --git a/src/ioapic.cpp b/src/ioapic.cpp
index d3c7991..d357cf3 100644
--- a/src/ioapic.cpp
+++ b/src/ioapic.cpp
@@ -29,7 +29,8 @@ Ioapic *Ioapic::list;
Ioapic::Ioapic (Paddr p, unsigned i, unsigned g) : List<Ioapic> (list), reg_base ((hwdev_addr -= PAGE_SIZE) | (p & PAGE_MASK)), gsi_base (g), id (i), rid (0)
{
- Pd::kern.Space_mem::delreg (Pd::kern.quota, Pd::kern.mdb_cache, p & ~PAGE_MASK);
+// XXX allow Genode platform driver to access device and take over control
+// Pd::kern.Space_mem::delreg (Pd::kern.quota, Pd::kern.mdb_cache, p & ~PAGE_MASK);
Pd::kern.Space_mem::insert (Pd::kern.quota, reg_base, 0, Hpt::HPT_NX | Hpt::HPT_G | Hpt::HPT_UC | Hpt::HPT_W | Hpt::HPT_P, p & ~PAGE_MASK);
trace (TRACE_APIC, "APIC:%#lx ID:%#x VER:%#x IRT:%#x PRQ:%u GSI:%u",

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repos/base-nova/ports/nova.hash
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