vasilito
cee25393d8
- Fix P15-8-init-cycle-detection.patch: replace visiting+error with seen+silent-skip to eliminate 11 false-positive 'dependency cycle detected' errors on shared deps - Fix P0-daemon-fix-init-notify-unwrap.patch: remove eprintln! for missing INIT_NOTIFY (expected for oneshot_async services, ~7 daemons affected) - Fix driver-manager hotplug loop: add PERMANENTLY_SKIPPED static set shared between hotplug handler and DriverConfig::probe() to stop infinite re-probing of Fatal/NotSupported/deferred-exhausted device+driver pairs (e.g. ided) - Fix driver-manager log_timeline: suppress repeated EPIPE/ENOENT errors with AtomicI32 dedup and AtomicBool one-shot guards for boot timeline JSON - Add driver-manager SIGTERM handler, ACPI bus registration, --status mode, driver reap loop, graceful shutdown, and reduced deferred retries (30→3)
40 lines
1.5 KiB
Diff
40 lines
1.5 KiB
Diff
--- a/src/arch/x86_shared/device/ioapic.rs
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+++ b/src/arch/x86_shared/device/ioapic.rs
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@@ -120,6 +120,21 @@
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reg |= u64::from(mask) << 16;
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let _ = guard.write_ioredtbl(idx, reg);
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}
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+ /// Change the destination APIC for a GSI by reprogramming the redirection table entry.
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+ /// Preserves all other fields (vector, polarity, trigger mode, delivery mode, mask).
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+ /// Returns true if the entry was successfully updated.
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+ pub fn set_irq_affinity(&self, gsi: u32, dest: ApicId) -> bool {
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+ let idx = (gsi - self.gsi_start) as u8;
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+ let mut guard = self.regs.lock();
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+ let Some(mut entry) = guard.read_ioredtbl(idx) else {
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+ return false;
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+ };
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+ // Clear destination field (bits 63:56 for xAPIC physical mode)
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+ // and set new destination APIC ID
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+ entry &= !(0xFF_u64 << 56);
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+ entry |= u64::from(dest.get()) << 56;
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+ guard.write_ioredtbl(idx, entry)
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+ }
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}
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#[repr(u8)]
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@@ -474,3 +489,14 @@
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};
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apic.set_mask(gsi, false);
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}
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+
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+/// Change the destination CPU for an IRQ by reprogramming the IOAPIC redirection entry.
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+/// Resolves the legacy IRQ to its GSI, finds the owning IOAPIC, and updates the destination
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+/// APIC ID in the redirection table while preserving all other fields.
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+pub unsafe fn set_affinity(irq: u8, dest: ApicId) -> bool {
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+ let gsi = resolve(irq);
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+ match find_ioapic(gsi) {
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+ Some(apic) => apic.set_irq_affinity(gsi, dest),
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+ None => false,
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+ }
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+}
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