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total hack patch to allow Linux 4.7 to boot with coreboot

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This commit is contained in:
Trammell Hudson 2016-08-05 12:26:12 -04:00
parent 0c090c49ed
commit 015b5290cf
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1 changed files with 19 additions and 0 deletions
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patches/linux-4.7.patch Normal file
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diff -u --recursive /home/hudson/build/clean/linux-4.7/arch/x86/boot/compressed/head_64.S ./linux-4.7/arch/x86/boot/compressed/head_64.S
--- /home/hudson/build/clean/linux-4.7/arch/x86/boot/compressed/head_64.S 2016-07-24 15:23:50.000000000 -0400
+++ ./linux-4.7/arch/x86/boot/compressed/head_64.S 2016-08-05 12:07:11.399854225 -0400
@@ -340,9 +357,15 @@
1:
/* Target address to relocate to for decompression */
+#if 0
movl BP_init_size(%rsi), %ebx
subl $_end, %ebx
addq %rbp, %rbx
+#else
+ // coreboot does not populate the init_size boot param,
+ // so we have to fake it with a hard coded value
+ movl $0x97b000, %ebx
+#endif
/* Set up the stack */
leaq boot_stack_end(%rbx), %rsp