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Lines 47-52
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#include <linux/smp.h> |
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#include <linux/smp.h> |
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#include <asm/asm.h> |
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#include <asm/io.h> |
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#include <asm/io.h> |
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#include <linux/mc146818rtc.h> |
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#include <linux/mc146818rtc.h> |
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#include <linux/capability.h> |
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#include <linux/capability.h> |
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Lines 4118-4124
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uint64 *val) // OUT: MSR value |
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uint64 *val) // OUT: MSR value |
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{ |
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{ |
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int ret; |
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int ret; |
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#if defined(VM_X86_64) |
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unsigned low, high; |
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unsigned low, high; |
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asm volatile("2: rdmsr ; xor %0,%0\n" |
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asm volatile("2: rdmsr ; xor %0,%0\n" |
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Lines 4126-4152
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".section .fixup,\"ax\"\n\t" |
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".section .fixup,\"ax\"\n\t" |
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"3: mov %4,%0 ; jmp 1b\n\t" |
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"3: mov %4,%0 ; jmp 1b\n\t" |
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".previous\n\t" |
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".previous\n\t" |
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".section __ex_table,\"a\"\n\t" |
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_ASM_EXTABLE(2b,3b) |
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".balign 8\n" |
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".quad 2b,3b\n" |
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".previous\n" |
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: "=r"(ret), "=a"(low), "=d"(high) |
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: "=r"(ret), "=a"(low), "=d"(high) |
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: "c"(msr), "i"(-EFAULT), "1"(0), "2"(0)); // init eax/edx to 0 |
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: "c"(msr), "i"(-EFAULT), "1"(0), "2"(0)); // init eax/edx to 0 |
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*val = (low | ((u64)(high) << 32)); |
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*val = (low | ((u64)(high) << 32)); |
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#else |
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asm volatile("2: rdmsr ; xor %0,%0\n" |
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"1:\n\t" |
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".section .fixup,\"ax\"\n\t" |
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"3: mov %3,%0 ; jmp 1b\n\t" |
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".previous\n\t" |
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".section __ex_table,\"a\"\n" |
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".balign 4\n" |
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".long 2b,3b\n" |
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".previous\n" |
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: "=r"(ret), "=A"(*val) |
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: "c"(msr), "i"(-EFAULT), "1"(0)); // init rax to 0 |
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#endif // VM_X86_64 |
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return ret; |
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return ret; |
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} |
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} |
