feat: (twimap) provide an easy way for mapping kernel objects into filesystem

[lunaix-os.git] / lunaix-os / includes / hal / cpu.h

diff --git a/lunaix-os/includes/hal/cpu.h b/lunaix-os/includes/hal/cpu.h
index b155d4b57496e67a93b99e6ddd7a58432b599789..5789d4a41430f955d8c939f4e79d168d445a26cd 100644 (file)
--- a/lunaix-os/includes/hal/cpu.h
+++ b/lunaix-os/includes/hal/cpu.h
@@ -3,6 +3,8 @@
 
 #include <stdint.h>
 
 
 #include <stdint.h>
 

+#define SEL_RPL(selector) ((selector)&0x3)
+

 typedef unsigned int reg32;
 typedef unsigned short reg16;
 
 typedef unsigned int reg32;
 typedef unsigned short reg16;
 


@@ -20,12 +22,10 @@ typedef struct
 
 typedef struct
 {
 
 typedef struct
 {

-    reg16 ss;
-    reg16 es;

     reg16 ds;
     reg16 ds;

+    reg16 es;

     reg16 fs;
     reg16 gs;
     reg16 fs;
     reg16 gs;

-    reg16 cs;

 } __attribute__((packed)) sg_reg;
 
 void
 } __attribute__((packed)) sg_reg;
 
 void


@@ -40,7 +40,7 @@ static inline reg32
 cpu_rcr0()
 {
     uintptr_t val;
 cpu_rcr0()
 {
     uintptr_t val;

-    asm volatile("movl %%cr0,%0" : "=r" (val));
+    asm volatile("movl %%cr0,%0" : "=r"(val));

     return val;
 }
 
     return val;
 }
 


@@ -48,7 +48,7 @@ static inline reg32
 cpu_rcr2()
 {
     uintptr_t val;
 cpu_rcr2()
 {
     uintptr_t val;

-    asm volatile("movl %%cr2,%0" : "=r" (val));
+    asm volatile("movl %%cr2,%0" : "=r"(val));

     return val;
 }
 
     return val;
 }
 


@@ -56,7 +56,7 @@ static inline reg32
 cpu_rcr3()
 {
     uintptr_t val;
 cpu_rcr3()
 {
     uintptr_t val;

-    asm volatile("movl %%cr3,%0" : "=r" (val));
+    asm volatile("movl %%cr3,%0" : "=r"(val));

     return val;
 }
 
     return val;
 }
 


@@ -64,10 +64,9 @@ static inline reg32
 cpu_reflags()
 {
     uintptr_t val;
 cpu_reflags()
 {
     uintptr_t val;

-    asm volatile(
-        "pushf\n"
-        "popl %0\n"
-        :"=r"(val)::);
+    asm volatile("pushf\n"
+                 "popl %0\n"
+                 : "=r"(val)::);

     return val;
 }
 #pragma GCC diagnostic pop
     return val;
 }
 #pragma GCC diagnostic pop


@@ -118,6 +117,12 @@ cpu_invtlb()
         : "r"(interm));
 }
 
         : "r"(interm));
 }
 

+static inline void
+cpu_int(int vect)
+{
+    asm("int %0" ::"i"(vect));
+}
+

 void
 cpu_rdmsr(uint32_t msr_idx, uint32_t* reg_high, uint32_t* reg_low);
 
 void
 cpu_rdmsr(uint32_t msr_idx, uint32_t* reg_high, uint32_t* reg_low);