IA32_CR4_GLOBAL_PAGES
x86_write_cr4(x86_read_cr4() | IA32_CR4_GLOBAL_PAGES);
x86_write_cr4(x86_read_cr4() | IA32_CR4_GLOBAL_PAGES);
if ((flags & IA32_CR4_GLOBAL_PAGES) != 0) {
x86_write_cr4(flags & ~IA32_CR4_GLOBAL_PAGES);
x86_write_cr4(flags | IA32_CR4_GLOBAL_PAGES);
x86_write_cr4(x86_read_cr4() | IA32_CR4_GLOBAL_PAGES);
x86_write_cr4(x86_read_cr4() | IA32_CR4_PAE | IA32_CR4_GLOBAL_PAGES);