提交 2458e53f 编写于 作者: K Kirill A. Shutemov 提交者: Thomas Gleixner

x86/mm: Fix 'no5lvl' handling

early_identify_cpu() has to use early version of pgtable_l5_enabled()
that doesn't rely on cpu_feature_enabled().

Defining USE_EARLY_PGTABLE_L5 before all includes does the trick.

I lost the define in one of reworks of the original patch.

Fixes: 372fddf7 ("x86/mm: Introduce the 'no5lvl' kernel parameter")
Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lkml.kernel.org/r/20180622220841.54135-3-kirill.shutemov@linux.intel.com
上级 51be1335
/* cpu_feature_enabled() cannot be used this early */
#define USE_EARLY_PGTABLE_L5
#include <linux/bootmem.h> #include <linux/bootmem.h>
#include <linux/linkage.h> #include <linux/linkage.h>
#include <linux/bitops.h> #include <linux/bitops.h>
......
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