Fix compilation on x86_64

src/arch/x86_shared/device/ioapic.rs

@@ -236,11 +236,10 @@ pub unsafe fn handle_ioapic(mapper: &mut KernelMapper, madt_ioapic: &'static Mad
     // map the I/O APIC registers
 
     let frame = Frame::containing_address(PhysicalAddress::new(madt_ioapic.address as usize));
-    let page = Page::containing_address(if cfg!(target_arch = "x86") {
-        VirtualAddress::new(crate::IOAPIC_OFFSET)
-    } else {
-        RmmA::phys_to_virt(frame.start_address())
-    });
+    #[cfg(target_arch = "x86")]
+    let page = Page::containing_address(VirtualAddress::new(crate::IOAPIC_OFFSET));
+    #[cfg(target_arch = "x86_64")]
+    let page = Page::containing_address(RmmA::phys_to_virt(frame.start_address()));
 
     assert!(mapper.translate(page.start_address()).is_none());
 

src/arch/x86_shared/device/local_apic.rs

@@ -49,11 +49,10 @@ impl LocalApic {
             .expect("expected KernelMapper not to be locked re-entrant while initializing LAPIC");
 
         let physaddr = PhysicalAddress::new(rdmsr(IA32_APIC_BASE) as usize & 0xFFFF_0000);
-        let virtaddr = if cfg!(target_arch = "x86") {
-            VirtualAddress::new(crate::LAPIC_OFFSET)
-        } else {
-            RmmA::phys_to_virt(physaddr)
-        };
+        #[cfg(target_arch = "x86")]
+        let virtaddr = VirtualAddress::new(crate::LAPIC_OFFSET);
+        #[cfg(target_arch = "x86_64")]
+        let virtaddr = RmmA::phys_to_virt(physaddr);
 
         self.address = virtaddr.data();
         self.x2 = cpuid().map_or(false, |cpuid| {