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Extract x86-specific exception handling in aster-nix

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This commit is contained in:
YanWQ-monad
2024-07-19 15:42:53 +08:00
committed by Tate, Hongliang Tian
parent a997d9f0b0
commit 4d36dd541f
7 changed files with 86 additions and 142 deletions
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62
kernel/src/thread/exception.rs
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@ -73,61 +73,19 @@ pub(crate) fn handle_page_fault_from_vmar(
/// generate a fault signal for current process.
fn generate_fault_signal(trap_info: &CpuExceptionInfo, ctx: &Context) {
let signal = FaultSignal::new(trap_info);
let signal = FaultSignal::from(trap_info);
ctx.posix_thread.enqueue_signal(Box::new(signal));
}
macro_rules! log_trap_common {
($exception_name: ident, $trap_info: ident) => {
trace!(
"[Trap][{}][err = {}]",
stringify!($exception_name),
$trap_info.error_code
)
};
}
fn log_trap_info(trap_info: &CpuExceptionInfo) {
match trap_info.cpu_exception() {
DIVIDE_BY_ZERO => log_trap_common!(DIVIDE_BY_ZERO, trap_info),
DEBUG => log_trap_common!(DEBUG, trap_info),
NON_MASKABLE_INTERRUPT => log_trap_common!(NON_MASKABLE_INTERRUPT, trap_info),
BREAKPOINT => log_trap_common!(BREAKPOINT, trap_info),
OVERFLOW => log_trap_common!(OVERFLOW, trap_info),
BOUND_RANGE_EXCEEDED => log_trap_common!(BOUND_RANGE_EXCEEDED, trap_info),
INVALID_OPCODE => log_trap_common!(INVALID_OPCODE, trap_info),
DEVICE_NOT_AVAILABLE => log_trap_common!(DEVICE_NOT_AVAILABLE, trap_info),
DOUBLE_FAULT => log_trap_common!(DOUBLE_FAULT, trap_info),
COPROCESSOR_SEGMENT_OVERRUN => log_trap_common!(COPROCESSOR_SEGMENT_OVERRUN, trap_info),
INVALID_TSS => log_trap_common!(INVALID_TSS, trap_info),
SEGMENT_NOT_PRESENT => log_trap_common!(SEGMENT_NOT_PRESENT, trap_info),
STACK_SEGMENT_FAULT => log_trap_common!(STACK_SEGMENT_FAULT, trap_info),
GENERAL_PROTECTION_FAULT => log_trap_common!(GENERAL_PROTECTION_FAULT, trap_info),
PAGE_FAULT => {
trace!(
"[Trap][{}][page fault addr = 0x{:x}, err = {}]",
stringify!(PAGE_FAULT),
trap_info.page_fault_addr,
trap_info.error_code
);
}
// 15 reserved
X87_FLOATING_POINT_EXCEPTION => log_trap_common!(X87_FLOATING_POINT_EXCEPTION, trap_info),
ALIGNMENT_CHECK => log_trap_common!(ALIGNMENT_CHECK, trap_info),
MACHINE_CHECK => log_trap_common!(MACHINE_CHECK, trap_info),
SIMD_FLOATING_POINT_EXCEPTION => log_trap_common!(SIMD_FLOATING_POINT_EXCEPTION, trap_info),
VIRTUALIZATION_EXCEPTION => log_trap_common!(VIRTUALIZATION_EXCEPTION, trap_info),
CONTROL_PROTECTION_EXCEPTION => log_trap_common!(CONTROL_PROTECTION_EXCEPTION, trap_info),
HYPERVISOR_INJECTION_EXCEPTION => {
log_trap_common!(HYPERVISOR_INJECTION_EXCEPTION, trap_info)
}
VMM_COMMUNICATION_EXCEPTION => log_trap_common!(VMM_COMMUNICATION_EXCEPTION, trap_info),
SECURITY_EXCEPTION => log_trap_common!(SECURITY_EXCEPTION, trap_info),
_ => {
info!(
"[Trap][Unknown trap type][id = {}, err = {}]",
trap_info.id, trap_info.error_code
);
}
if let Ok(page_fault_info) = PageFaultInfo::try_from(trap_info) {
trace!(
"[Trap][PAGE_FAULT][page fault addr = 0x{:x}, err = {}]",
trap_info.page_fault_addr,
trap_info.error_code
);
} else {
let exception = trap_info.cpu_exception();
trace!("[Trap][{exception:?}][err = {}]", trap_info.error_code)
}
}