misc: hypervisor: drop extern crate, use modern rust

This commit is part of a series of similar commits.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com

hypervisor/src/arch/x86/emulator/instructions/mod.rs

@@ -4,6 +4,7 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
+use anyhow::anyhow;
 use iced_x86::*;
 
 use crate::arch::emulator::{EmulationError, PlatformEmulator, PlatformError};

hypervisor/src/arch/x86/emulator/instructions/movs.rs

@@ -10,6 +10,8 @@
 // MOVS - Move Data from String to String
 //
 
+use anyhow::anyhow;
+
 use crate::arch::x86::emulator::instructions::*;
 use crate::arch::x86::regs::DF;
 

hypervisor/src/arch/x86/emulator/instructions/stos.rs

@@ -10,6 +10,8 @@
 // STOS - Store String
 //
 
+use anyhow::anyhow;
+
 use crate::arch::x86::emulator::instructions::*;
 use crate::arch::x86::regs::DF;
 

hypervisor/src/arch/x86/emulator/mod.rs

@@ -4,8 +4,9 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
-use anyhow::Context;
+use anyhow::{Context, anyhow};
 use iced_x86::*;
+use log::debug;
 
 use crate::StandardRegisters;
 use crate::arch::emulator::{EmulationError, EmulationResult, PlatformEmulator, PlatformError};

hypervisor/src/cpu.rs

@@ -12,7 +12,7 @@
 
 use thiserror::Error;
 #[cfg(not(target_arch = "riscv64"))]
-use vm_memory::GuestAddress;
+use {anyhow::anyhow, vm_memory::GuestAddress};
 
 #[cfg(any(target_arch = "aarch64", target_arch = "riscv64"))]
 use crate::RegList;

hypervisor/src/kvm/mod.rs

@@ -25,7 +25,10 @@ use std::sync::Mutex;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, RwLock};
 
+use anyhow::anyhow;
 use kvm_ioctls::{NoDatamatch, VcpuFd, VmFd};
+#[cfg(target_arch = "x86_64")]
+use log::warn;
 use vmm_sys_util::eventfd::EventFd;
 
 #[cfg(target_arch = "aarch64")]

hypervisor/src/lib.rs

@@ -21,12 +21,6 @@
 //! - riscv64 (experimental)
 //!
 
-#[macro_use]
-extern crate anyhow;
-#[allow(unused_imports)]
-#[macro_use]
-extern crate log;
-
 /// Architecture specific definitions
 #[macro_use]
 pub mod arch;
@@ -53,6 +47,7 @@ mod device;
 
 use std::sync::Arc;
 
+use anyhow::anyhow;
 use concat_idents::concat_idents;
 #[cfg(target_arch = "x86_64")]
 pub use cpu::CpuVendor;

hypervisor/src/mshv/aarch64/emulator.rs

@@ -3,6 +3,8 @@
 // Copyright © 2025, Microsoft Corporation
 //
 
+use anyhow::anyhow;
+
 use crate::arch::aarch64::regs::{EsrEl2, ExceptionClass, IssDataAbort};
 use crate::arch::emulator::PlatformError;
 use crate::cpu::Vcpu;

hypervisor/src/mshv/mod.rs

@@ -9,8 +9,8 @@ use std::collections::HashMap;
 use std::num::NonZeroUsize;
 use std::sync::{Arc, RwLock};
 
-#[cfg(feature = "sev_snp")]
-use arc_swap::ArcSwap;
+use anyhow::anyhow;
+use log::{debug, warn};
 use mshv_bindings::*;
 #[cfg(target_arch = "x86_64")]
 use mshv_ioctls::InterruptRequest;
@@ -19,6 +19,8 @@ use vfio_ioctls::VfioDeviceFd;
 use vm::DataMatch;
 #[cfg(feature = "sev_snp")]
 use vm_memory::bitmap::AtomicBitmap;
+#[cfg(feature = "sev_snp")]
+use {arc_swap::ArcSwap, log::info};
 
 #[cfg(target_arch = "aarch64")]
 use crate::arch::aarch64::regs::{
@@ -271,7 +273,6 @@ impl hypervisor::Hypervisor for MshvHypervisor {
     /// # Examples
     ///
     /// ```
-    /// # extern crate hypervisor;
     /// use hypervisor::mshv::MshvHypervisor;
     /// use hypervisor::mshv::MshvVm;
     /// use hypervisor::HypervisorVmConfig;
@@ -1700,7 +1701,6 @@ impl MshvVm {
 /// # Examples
 ///
 /// ```
-/// extern crate hypervisor;
 /// use hypervisor::mshv::MshvHypervisor;
 /// use hypervisor::HypervisorVmConfig;
 /// use std::sync::Arc;

hypervisor/src/mshv/x86_64/emulator.rs

@@ -3,7 +3,9 @@
 // Copyright © 2024, Microsoft Corporation
 //
 
+use anyhow::anyhow;
 use iced_x86::Register;
+use log::debug;
 use mshv_bindings::*;
 
 use crate::arch::emulator::{PlatformEmulator, PlatformError};