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61423c413a
Hardcode the PIT's source IRQ ID to '2' instead of "finding" that bit 2 is always the first available bit in irq_sources_bitmap. Bits 0 and 1 are set/reserved by kvm_arch_init_vm(), i.e. long before kvm_create_pit() can be invoked, and KVM allows at most one in-kernel PIT instance, i.e. it's impossible for the PIT to find a different free bit (there are no other users of kvm_request_irq_source_id(). Delete the now-defunct irq_sources_bitmap and all its associated code. Acked-by: Kai Huang <kai.huang@intel.com> Link: https://lore.kernel.org/r/20250611213557.294358-11-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>