mirror of
https://github.com/linuxboot/heads.git
synced 2024-12-19 04:57:55 +00:00
29 lines
983 B
Diff
29 lines
983 B
Diff
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diff --recursive -u ./clean/linux-4.9.80/arch/x86/realmode/init.c linux-4.9.80/arch/x86/realmode/init.c
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--- ./clean/linux-4.9.80/arch/x86/realmode/init.c 2018-02-03 11:05:43.000000000 -0500
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+++ linux-4.9.80/arch/x86/realmode/init.c 2018-02-07 15:51:28.538500435 -0500
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@@ -35,8 +35,8 @@
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/* Has to be under 1M so we can execute real-mode AP code. */
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mem = memblock_find_in_range(0, 1<<20, size, PAGE_SIZE);
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if (!mem) {
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- pr_info("No sub-1M memory is available for the trampoline\n");
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- return;
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+ mem = 0x4000;
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+ pr_info("No sub-1M memory is available for the trampoline, guessing %p\n", mem);
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}
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memblock_reserve(mem, size);
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@@ -138,7 +138,12 @@
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static int __init init_real_mode(void)
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{
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if (!real_mode_header)
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- panic("Real mode trampoline was not allocated");
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+ {
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+ // ignore for now
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+ //panic("Real mode trampoline was not allocated");
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+ pr_warn("Real mode trampoline was not allocated");
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+ return 0;
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+ }
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setup_real_mode();
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set_real_mode_permissions();
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