fix: add logs

Author: ZR233

src/exception.rs

@@ -1,4 +1,3 @@
-use crate::{TrapFrame, handle_irq};
 use crate::exception_utils::{
     exception_class, exception_class_value, exception_data_abort_access_is_write,
     exception_data_abort_access_reg, exception_data_abort_access_reg_width,
@@ -7,14 +6,17 @@ use crate::exception_utils::{
     exception_esr, exception_fault_addr, exception_next_instruction_step, exception_sysreg_addr,
     exception_sysreg_direction_write, exception_sysreg_gpr,
 };
+use crate::{TrapFrame, handle_irq};
 
-use aarch64_cpu::registers::{ESR_EL2, HCR_EL2, Readable, SCTLR_EL1, VTCR_EL2, VTTBR_EL2};
+use crate::exit::AxVCpuExitReason;
+use aarch64_cpu::registers::{
+    ESR_EL2, FAR_EL2, HCR_EL2, HPFAR_EL2, Readable, SCTLR_EL1, SPSR_EL2, VTCR_EL2, VTTBR_EL2,
+};
+use axerrno::{AxError, AxResult};
 use axvm_types::{
     addr::GuestPhysAddr,
     device::{AccessWidth, SysRegAddr},
 };
-use axerrno::{AxError, AxResult};
-use crate::exit::AxVCpuExitReason;
 
 numeric_enum_macro::numeric_enum! {
 #[repr(u8)]
@@ -289,10 +291,16 @@ fn current_el_sync_handler(tf: &mut TrapFrame) {
     let esr = ESR_EL2.extract();
     let ec = ESR_EL2.read(ESR_EL2::EC);
     let iss = ESR_EL2.read(ESR_EL2::ISS);
+    let far = FAR_EL2.get();
+    let hpfar = HPFAR_EL2.get();
+    let spsr_el2 = SPSR_EL2.get();
 
     error!("ESR_EL2: {:#x}", esr.get());
     error!("Exception Class: {ec:#x}");
     error!("Instruction Specific Syndrome: {iss:#x}");
+    error!("FAR_EL2: {far:#x}");
+    error!("HPFAR_EL2: {hpfar:#x}");
+    error!("SPSR_EL2: {spsr_el2:#x}");
 
     panic!(
         "Unhandled synchronous exception from current EL: {:#x?}",
@@ -337,7 +345,7 @@ fn current_el_sync_handler(tf: &mut TrapFrame) {
 ///   invoked as part of the low-level hypervisor or VM exit handling routines.
 #[unsafe(naked)]
 #[unsafe(no_mangle)]
-unsafe extern fn vmexit_trampoline() -> ! {
+unsafe extern "C" fn vmexit_trampoline() -> ! {
     core::arch::naked_asm!(
         // Curretly `sp` points to the base address of `Aarch64VCpu.ctx`, which stores guest's `TrapFrame`.
         "add x9, sp, 34 * 8", // Skip the exception frame.