Changeset cb4b61d in mainline for arch/ia32/src

Timestamp:

2005-04-17T18:09:26Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

7eade45

Parents:

2968fe29

Message:

Added before_thread_runs() to cope with TSS of user space tasks.

Location:

arch/ia32/src

Files:

• cpu/cpu.c (modified) (1 diff)
• interrupt.c (modified) (2 diffs)
• pm.c (modified) (1 diff)
• proc/scheduler.c (added)
• userspace.c (modified) (1 diff)

arch/ia32/src/cpu/cpu.c

@@ -105 +105 @@
 }
 
-void cpu_print_report(struct cpu* m)
+void cpu_print_report(cpu_t* m)
 {
         printf("cpu%d: (%s family=%d model=%d stepping=%d) %dMHz\n",

arch/ia32/src/interrupt.c

@@ -35 +35 @@
 #include <arch/asm.h>
 #include <mm/tlb.h>
+#include <arch.h>
 
 /*
@@ -91 +92 @@
 void syscall(__u8 n, __u32 stack[])
 {
-        printf("syscall... ");
-        thread_sleep(1);
+        printf("cpu%d: syscall\n", CPU->id);
+        thread_usleep(600);
 }
 

arch/ia32/src/pm.c

@@ -66 +66 @@
 struct tss *tss_p = NULL;
 
-/* gdtr changes everytime new CPU is initialized */
+/* gdtr is changed by kmp before next CPU is initialized */
 struct ptr_16_32 gdtr __attribute__ ((section ("K_DATA_START"))) = { .limit = sizeof(gdt), .base = (__address) gdt };
 struct ptr_16_32 idtr __attribute__ ((section ("K_DATA_START")))= { .limit = sizeof(idt), .base = (__address) idt };

arch/ia32/src/userspace.c

@@ -39 +39 @@
         
         pri = cpu_priority_high();
-        
-        /*
-         * Prepare TSS stack selector and pointers for next syscall.
-         */
-        CPU->arch.tss->esp0 = (__address) &THREAD->kstack[THREAD_STACK_SIZE-8];
-        CPU->arch.tss->ss0 = selector(KDATA_DES);
-        
+
         __asm__ volatile (""
             "pushl %0\n"