Architectural Support: x86_64 (#37)

[lunaix-os.git] / lunaix-os / arch / x86 / exceptions / intr_routines.c

diff --git a/lunaix-os/arch/x86/exceptions/intr_routines.c b/lunaix-os/arch/x86/exceptions/intr_routines.c
new file mode 100644 (file)
index 0000000..05f547e
--- /dev/null
+++ b/lunaix-os/arch/x86/exceptions/intr_routines.c
@@ -0,0 +1,98 @@
+#include <sys/hart.h>
+
+#include <lunaix/generic/isrm.h>
+#include <lunaix/process.h>
+#include <lunaix/sched.h>
+#include <lunaix/spike.h>
+#include <lunaix/syslog.h>
+#include <lunaix/trace.h>
+#include <lunaix/failsafe.h>
+
+#include <klibc/strfmt.h>
+
+#include "sys/apic.h"
+#include <sys/int_handler.h>
+
+LOG_MODULE("INTR")
+
+extern void
+intr_routine_page_fault(const struct hart_state* state);
+
+extern u32_t debug_resv;
+
+void
+__print_panic_msg(const char* msg, const struct hart_state* state)
+{
+    ERROR("panic: %s", msg);
+    failsafe_diagnostic();
+}
+
+void
+intr_routine_divide_zero(const struct hart_state* state)
+{
+    __print_panic_msg("div zero", state);
+}
+
+void
+intr_routine_general_protection(const struct hart_state* state)
+{
+    __print_panic_msg("general protection", state);
+}
+
+void
+intr_routine_sys_panic(const struct hart_state* state)
+{
+#ifdef CONFIG_ARCH_X86_64
+    __print_panic_msg((char*)(state->registers.rdi), state);
+#else
+    __print_panic_msg((char*)(state->registers.edi), state);
+#endif
+}
+
+void
+intr_routine_fallback(const struct hart_state* state)
+{
+    __print_panic_msg("unknown interrupt", state);
+}
+
+/**
+ * @brief ISR for Spurious interrupt
+ *
+ * @param struct hart_state passed by CPU
+ */
+void
+intr_routine_apic_spi(const struct hart_state* state)
+{
+    // FUTURE: do nothing for now
+}
+
+void
+intr_routine_apic_error(const struct hart_state* state)
+{
+    u32_t error_reg = apic_read_reg(APIC_ESR);
+    char buf[32];
+    ksprintf(buf, "APIC error, ESR=0x%x", error_reg);
+
+    failsafe_diagnostic();
+}
+
+void
+intr_routine_sched(const struct hart_state* state)
+{
+    schedule();
+}
+
+void
+intr_routine_init()
+{
+    isrm_bindiv(FAULT_DIVISION_ERROR, intr_routine_divide_zero);
+    isrm_bindiv(FAULT_GENERAL_PROTECTION, intr_routine_general_protection);
+    isrm_bindiv(FAULT_PAGE_FAULT, intr_routine_page_fault);
+    isrm_bindiv(FAULT_STACK_SEG_FAULT, intr_routine_page_fault);
+
+    isrm_bindiv(LUNAIX_SYS_PANIC, intr_routine_sys_panic);
+    isrm_bindiv(LUNAIX_SCHED, intr_routine_sched);
+
+    isrm_bindiv(APIC_SPIV_IV, intr_routine_apic_spi);
+    isrm_bindiv(APIC_ERROR_IV, intr_routine_apic_error);
+}
\ No newline at end of file