mirror of
https://github.com/linuxboot/heads.git
synced 2024-12-22 14:22:26 +00:00
55 lines
1.9 KiB
Diff
55 lines
1.9 KiB
Diff
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diff -u --recursive ../../clean/linux-4.14.62/arch/x86/boot/compressed/eboot.c linux-4.14.62/arch/x86/boot/compressed/eboot.c
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--- ../../clean/linux-4.14.62/arch/x86/boot/compressed/eboot.c 2018-08-09 06:16:40.000000000 -0400
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+++ linux-4.14.62/arch/x86/boot/compressed/eboot.c 2018-08-09 10:13:11.801000000 -0400
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@@ -390,8 +390,8 @@
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int options_size = 0;
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efi_status_t status;
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char *cmdline_ptr;
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- unsigned long ramdisk_addr;
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- unsigned long ramdisk_size;
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+ unsigned long ramdisk_addr = 0;
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+ unsigned long ramdisk_size = 0;
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efi_early = c;
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sys_table = (efi_system_table_t *)(unsigned long)efi_early->table;
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@@ -447,9 +447,6 @@
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/* Fill in upper bits of command line address, NOP on 32 bit */
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boot_params->ext_cmd_line_ptr = (u64)(unsigned long)cmdline_ptr >> 32;
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- hdr->ramdisk_image = 0;
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- hdr->ramdisk_size = 0;
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-
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/* Clear APM BIOS info */
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memset(bi, 0, sizeof(*bi));
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@@ -476,10 +473,16 @@
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if (status != EFI_SUCCESS)
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goto fail2;
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- hdr->ramdisk_image = ramdisk_addr & 0xffffffff;
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- hdr->ramdisk_size = ramdisk_size & 0xffffffff;
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- boot_params->ext_ramdisk_image = (u64)ramdisk_addr >> 32;
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- boot_params->ext_ramdisk_size = (u64)ramdisk_size >> 32;
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+
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+ // don't overwrite the bzImage or loader provided ramdisk pointer
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+ // unless the kernel command line specified a different one.
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+ if (ramdisk_addr != 0)
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+ {
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+ hdr->ramdisk_image = ramdisk_addr & 0xffffffff;
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+ hdr->ramdisk_size = ramdisk_size & 0xffffffff;
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+ boot_params->ext_ramdisk_image = (u64)ramdisk_addr >> 32;
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+ boot_params->ext_ramdisk_size = (u64)ramdisk_size >> 32;
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+ }
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return boot_params;
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fail2:
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--- clean/linux-4.14.62/arch/x86/boot/compressed/early_serial_console.c 2018-08-09 12:16:40.000000000 +0200
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+++ linux-4.14.62/arch/x86/boot/compressed/early_serial_console.c 2018-09-28 11:59:36.824015244 +0200
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@@ -1,5 +1,5 @@
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#include "misc.h"
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-int early_serial_base;
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+int early_serial_base = 0x3f8;
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#include "../early_serial_console.c"
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