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Diffstat (limited to 'arch/x86/kernel/head_32.S')
-rw-r--r--arch/x86/kernel/head_32.S13
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index f7357cc0162c..f67e93441caf 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -194,6 +194,7 @@ default_entry:
194 xorl %ebx,%ebx /* %ebx is kept at zero */ 194 xorl %ebx,%ebx /* %ebx is kept at zero */
195 195
196 movl $pa(pg0), %edi 196 movl $pa(pg0), %edi
197 movl %edi, pa(init_pg_tables_start)
197 movl $pa(swapper_pg_pmd), %edx 198 movl $pa(swapper_pg_pmd), %edx
198 movl $PTE_ATTR, %eax 199 movl $PTE_ATTR, %eax
19910: 20010:
@@ -219,6 +220,8 @@ default_entry:
219 jb 10b 220 jb 10b
2201: 2211:
221 movl %edi,pa(init_pg_tables_end) 222 movl %edi,pa(init_pg_tables_end)
223 shrl $12, %eax
224 movl %eax, pa(max_pfn_mapped)
222 225
223 /* Do early initialization of the fixmap area */ 226 /* Do early initialization of the fixmap area */
224 movl $pa(swapper_pg_fixmap)+PDE_ATTR,%eax 227 movl $pa(swapper_pg_fixmap)+PDE_ATTR,%eax
@@ -228,6 +231,7 @@ default_entry:
228page_pde_offset = (__PAGE_OFFSET >> 20); 231page_pde_offset = (__PAGE_OFFSET >> 20);
229 232
230 movl $pa(pg0), %edi 233 movl $pa(pg0), %edi
234 movl %edi, pa(init_pg_tables_start)
231 movl $pa(swapper_pg_dir), %edx 235 movl $pa(swapper_pg_dir), %edx
232 movl $PTE_ATTR, %eax 236 movl $PTE_ATTR, %eax
23310: 23710:
@@ -249,6 +253,8 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
249 cmpl %ebp,%eax 253 cmpl %ebp,%eax
250 jb 10b 254 jb 10b
251 movl %edi,pa(init_pg_tables_end) 255 movl %edi,pa(init_pg_tables_end)
256 shrl $12, %eax
257 movl %eax, pa(max_pfn_mapped)
252 258
253 /* Do early initialization of the fixmap area */ 259 /* Do early initialization of the fixmap area */
254 movl $pa(swapper_pg_fixmap)+PDE_ATTR,%eax 260 movl $pa(swapper_pg_fixmap)+PDE_ATTR,%eax
@@ -446,10 +452,13 @@ is386: movl $2,%ecx # set MP
446 je 1f 452 je 1f
447 movl $(__KERNEL_PERCPU), %eax 453 movl $(__KERNEL_PERCPU), %eax
448 movl %eax,%fs # set this cpu's percpu 454 movl %eax,%fs # set this cpu's percpu
449 jmp initialize_secondary # all other CPUs call initialize_secondary 455 movl (stack_start), %esp
4501: 4561:
451#endif /* CONFIG_SMP */ 457#endif /* CONFIG_SMP */
452 jmp i386_start_kernel 458 jmp *(initial_code)
459.align 4
460ENTRY(initial_code)
461 .long i386_start_kernel
453 462
454/* 463/*
455 * We depend on ET to be correct. This checks for 287/387. 464 * We depend on ET to be correct. This checks for 287/387.