From 2007ceec3fd61bcb6c9ec9ca224d30f8e8fc8b83 Mon Sep 17 00:00:00 2001 From: h2-addad <hamza2.addad@live.uwe.ac.uk> Date: Sun, 16 Jul 2023 01:42:52 +0000 Subject: [PATCH] Upload New File --- src/userprog/exception.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 src/userprog/exception.h diff --git a/src/userprog/exception.h b/src/userprog/exception.h new file mode 100644 index 0000000..f83e615 --- /dev/null +++ b/src/userprog/exception.h @@ -0,0 +1,12 @@ +#ifndef USERPROG_EXCEPTION_H +#define USERPROG_EXCEPTION_H + +/* Page fault error code bits that describe the cause of the exception. */ +#define PF_P 0x1 /* 0: not-present page. 1: access rights violation. */ +#define PF_W 0x2 /* 0: read, 1: write. */ +#define PF_U 0x4 /* 0: kernel, 1: user process. */ + +void exception_init (void); +void exception_print_stats (void); + +#endif /* userprog/exception.h */ -- GitLab