sanchayanmaity/xv6-cs450
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Oops

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This commit is contained in:
Frans Kaashoek 2011-08-12 12:02:17 -04:00
parent e0d1ba0d74
commit c95ce31c59
1 changed files with 2 additions and 2 deletions
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4
main.c
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@ -86,8 +86,8 @@ bootothers(void)
// memory, so we use bootpgdir for the APs too. kalloc can return addresses // memory, so we use bootpgdir for the APs too. kalloc can return addresses
// above 4Mbyte (the machine may have much more physical memory than 4Mbyte), which // above 4Mbyte (the machine may have much more physical memory than 4Mbyte), which
// aren't mapped by bootpgdir, so we must allocate a stack using boot_alloc(); // aren't mapped by bootpgdir, so we must allocate a stack using boot_alloc();
// This introduces the constraint that xv6 cannot invoke until after these last boot_alloc // This introduces the constraint that xv6 cannot use kalloc until after these
// invocations. // last boot_alloc invocations.
stack = boot_alloc(); stack = boot_alloc();
*(void**)(code-4) = stack + KSTACKSIZE; *(void**)(code-4) = stack + KSTACKSIZE;
*(void**)(code-8) = mpboot; *(void**)(code-8) = mpboot;