x86-64: Only set max_pfn_mapped to 512 MiB if we enter via head_64.S

[firefly-linux-kernel-4.4.55.git] / arch / x86 / kernel / head64.c

diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 97adf9828b957697f532026bfe7278e27685e88b..2d2673c28aff2754af1e6e8848e9068ab1a6cca5 100644 (file)
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -80,6 +80,8 @@ void __init x86_64_start_kernel(char * real_mode_data)
        /* Cleanup the over mapped high alias */
        cleanup_highmap();
 
+       max_pfn_mapped = KERNEL_IMAGE_SIZE >> PAGE_SHIFT;
+
        for (i = 0; i < NUM_EXCEPTION_VECTORS; i++) {
 #ifdef CONFIG_EARLY_PRINTK
                set_intr_gate(i, &early_idt_handlers[i]);