feat(x86_64): use userspace emulated IOAPIC#391
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Ensure the lower 8 bits of the high 32 bits of the MSI message address are preserved during translation. Signed-off-by: Changyuan Lyu <changyuanl@google.com>
Pull Request Test Coverage Report for Build 21787718629Details
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Implement a userspace emulated IOAPIC as an MMIO device. This is required for TDX support, which needs KVM_CAP_SPLIT_IRQCHIP, disabling the in-kernel IOAPIC. The primary use for the IOAPIC is for the serial console. Signed-off-by: Changyuan Lyu <changyuanl@google.com>
Consolidate KVM capability checks and enabling into a single helper function to reduce boilerplate. Signed-off-by: Changyuan Lyu <changyuanl@google.com>
Remove the `IrqSender` trait on x86_64 as it is no longer needed. Signed-off-by: Changyuan Lyu <changyuanl@google.com>
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