Changeset 2e311da in mainline

Timestamp:

2019-06-15T09:27:55Z (6 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

180e132

Parents:

4d32b16

Message:

Base istate_from_uspace on the interrupted CPL

Location:

kernel/arch/ia64/include/arch

Files:

• istate.h (modified) (1 diff)
• mm/page.h (modified) (2 diffs)
• register.h (modified) (1 diff)

kernel/arch/ia64/include/arch/istate.h

@@ -71 +71 @@
 _NO_TRACE static inline int istate_from_uspace(istate_t *istate)
 {
-        return (istate->cr_iip) < 0xe000000000000000ULL;
+        return istate->cr_ipsr.cpl == PSR_CPL_USER;
 }
 

kernel/arch/ia64/include/arch/mm/page.h

@@ -38 +38 @@
 
 #include <arch/mm/frame.h>
+#include <arch/register.h>
 
 #ifndef __ASSEMBLER__
@@ -76 +77 @@
 
 /** Privilege Levels. Only the most and the least privileged ones are ever used. */
-#define PL_KERNEL  0x00
-#define PL_USER    0x03
+#define PL_KERNEL  PSR_CPL_KERNEL
+#define PL_USER    PSR_CPL_USER
 
 /* Access Rigths. Only certain combinations are used by the kernel. */

kernel/arch/ia64/include/arch/register.h

@@ -57 +57 @@
 #define PSR_RT_MASK   (1 << 27)
 #define PSR_IT_MASK   (1 << 36)
+
+#define PSR_CPL_USER   3
+#define PSR_CPL_KERNEL 0
 
 #define PSR_CPL_SHIFT         32