Messages in this thread Patch in this message | | | Date | Fri, 12 Jan 2007 17:45:41 -0800 | From | Jeremy Fitzhardinge <> | Subject | [patch 02/20] XEN-paravirt: Add a flag to allow the VGA console to be disabled |
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Add a flag to allow the VGA console to be disabled. The VGA code will spin forever if there isn't any real VGA hardware, which will happen under Xen.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Gerd Hoffmann <kraxel@suse.de> Cc: Andrew Morton <akpm@osdl.org>
=================================================================== --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -71,6 +71,9 @@ unsigned long init_pg_tables_end __initd int disable_pse __devinitdata = 0; +/* use to runtime disable vga_con */ +int vgacon_enabled = 1; + /* * Machine setup.. */ @@ -652,7 +655,7 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_VT #if defined(CONFIG_VGA_CONSOLE) - if (!efi_enabled || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY)) + if (vgacon_enabled && (!efi_enabled || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY))) conswitchp = &vga_con; #elif defined(CONFIG_DUMMY_CONSOLE) conswitchp = &dummy_con; =================================================================== --- a/include/asm-i386/setup.h +++ b/include/asm-i386/setup.h @@ -77,6 +77,8 @@ void __init add_memory_region(unsigned l void __init add_memory_region(unsigned long long start, unsigned long long size, int type); +extern int vgacon_enabled; + #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ --
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