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Rev 3982 Rev 4017
Line 70... Line 70...
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 *
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 *
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 * Clean IOPL(12,13) and NT(14) flags in EFLAGS register
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 * Clean IOPL(12,13) and NT(14) flags in EFLAGS register
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 */
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 */
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static void clean_IOPL_NT_flags(void)
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static void clean_IOPL_NT_flags(void)
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{
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{
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    asm (
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    asm volatile (
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        "pushfq\n"
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        "pushfq\n"
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        "pop %%rax\n"
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        "pop %%rax\n"
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        "and $~(0x7000), %%rax\n"
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        "and $~(0x7000), %%rax\n"
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        "pushq %%rax\n"
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        "pushq %%rax\n"
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        "popfq\n"
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        "popfq\n"
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        :
 - 
 
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        :
 - 
 
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        : "%rax"
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        ::: "%rax"
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    );
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    );
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}
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}
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/** Disable alignment check
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/** Disable alignment check
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 *
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 *
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 * Clean AM(18) flag in CR0 register
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 * Clean AM(18) flag in CR0 register
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 */
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 */
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static void clean_AM_flag(void)
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static void clean_AM_flag(void)
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{
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{
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    asm (
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    asm volatile (
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        "mov %%cr0, %%rax\n"
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        "mov %%cr0, %%rax\n"
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        "and $~(0x40000), %%rax\n"
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        "and $~(0x40000), %%rax\n"
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        "mov %%rax, %%cr0\n"
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        "mov %%rax, %%cr0\n"
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        :
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        :
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        : "%rax"
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        ::: "%rax"
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    );
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    );
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}
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}
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void arch_pre_mm_init(void)
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void arch_pre_mm_init(void)
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{
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{