28 lines
747 B
Diff
28 lines
747 B
Diff
--- kernel/nv-pat.c~ 2015-02-22 20:39:43.889075396 -0800
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+++ kernel/nv-pat.c 2015-02-22 20:29:33.519735577 -0800
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@@ -35,8 +35,13 @@
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unsigned long cr0 = read_cr0();
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write_cr0(((cr0 & (0xdfffffff)) | 0x40000000));
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wbinvd();
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)
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+ *cr4 = __read_cr4();
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+ if (*cr4 & 0x80) __write_cr4(*cr4 & ~0x80);
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+#else
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*cr4 = read_cr4();
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if (*cr4 & 0x80) write_cr4(*cr4 & ~0x80);
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+#endif
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__flush_tlb();
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}
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@@ -46,7 +46,11 @@
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wbinvd();
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__flush_tlb();
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write_cr0((cr0 & 0x9fffffff));
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)
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+ if (cr4 & 0x80) __write_cr4(cr4);
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+#else
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if (cr4 & 0x80) write_cr4(cr4);
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+#endif
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}
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static int nv_determine_pat_mode(void)
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