diff options
Diffstat (limited to 'arch/x86/boot/compressed/misc.c')
| -rw-r--r-- | arch/x86/boot/compressed/misc.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c index f35ad9eb1bf1..462dfbf7467b 100644 --- a/arch/x86/boot/compressed/misc.c +++ b/arch/x86/boot/compressed/misc.c @@ -114,7 +114,7 @@ static void error(char *m); /* * This is set up by the setup-routine at boot-time */ -struct boot_params *real_mode; /* Pointer to real-mode data */ +struct boot_params *boot_params; memptr free_mem_ptr; memptr free_mem_end_ptr; @@ -184,12 +184,12 @@ void __putstr(const char *s) } } - if (real_mode->screen_info.orig_video_mode == 0 && + if (boot_params->screen_info.orig_video_mode == 0 && lines == 0 && cols == 0) return; - x = real_mode->screen_info.orig_x; - y = real_mode->screen_info.orig_y; + x = boot_params->screen_info.orig_x; + y = boot_params->screen_info.orig_y; while ((c = *s++) != '\0') { if (c == '\n') { @@ -210,8 +210,8 @@ void __putstr(const char *s) } } - real_mode->screen_info.orig_x = x; - real_mode->screen_info.orig_y = y; + boot_params->screen_info.orig_x = x; + boot_params->screen_info.orig_y = y; pos = (x + cols * y) * 2; /* Update cursor position */ outb(14, vidport); @@ -392,14 +392,15 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap, { unsigned char *output_orig = output; - real_mode = rmode; + /* Retain x86 boot parameters pointer passed from startup_32/64. */ + boot_params = rmode; - /* Clear it for solely in-kernel use */ - real_mode->hdr.loadflags &= ~KASLR_FLAG; + /* Clear flags intended for solely in-kernel use. */ + boot_params->hdr.loadflags &= ~KASLR_FLAG; - sanitize_boot_params(real_mode); + sanitize_boot_params(boot_params); - if (real_mode->screen_info.orig_video_mode == 7) { + if (boot_params->screen_info.orig_video_mode == 7) { vidmem = (char *) 0xb0000; vidport = 0x3b4; } else { @@ -407,8 +408,8 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap, vidport = 0x3d4; } - lines = real_mode->screen_info.orig_video_lines; - cols = real_mode->screen_info.orig_video_cols; + lines = boot_params->screen_info.orig_video_lines; + cols = boot_params->screen_info.orig_video_cols; console_init(); debug_putstr("early console in decompress_kernel\n"); |