From: Keir Fraser Date: Thu, 15 Jan 2009 12:41:44 +0000 (+0000) Subject: rombios: remove unnecessary function calls. X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~14014^2~55 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=44c6dadfe247a54653eae0e3f9acf686276d0dac;p=xen.git rombios: remove unnecessary function calls. The rombios always becomes read-only after using 32bit gateway. That is not handy for using the gateway. Signed-off-by: Kouya Shimura --- diff --git a/tools/firmware/rombios/32bitgateway.c b/tools/firmware/rombios/32bitgateway.c index 9592dfbca1..569a8ccfc9 100644 --- a/tools/firmware/rombios/32bitgateway.c +++ b/tools/firmware/rombios/32bitgateway.c @@ -126,18 +126,18 @@ gdt_base: gdt_entry_pm_cs: ; 32 bit code segment for protected mode .word 0xffff, 0x0000 - .byte 0x00, 0x9a, 0xcf, 0x00 + .byte 0x00, 0x9b, 0xcf, 0x00 gdt_entry_pm_16bit_cs: ; temp. 16 bit code segment used while in protected mode .word 0xffff, 0x0000 - .byte SEGMENT_OFFSET >> 16, 0x9a, 0x0, 0x0 + .byte SEGMENT_OFFSET >> 16, 0x9b, 0x0, 0x0 gdt_entry_pm_32bit_ds: ; (32 bit) data segment (r/w) reaching all possible areas in 32bit memory ; 4kb granularity .word 0xffff, 0x0000 - .byte 0x0, 0x92, 0xcf, 0x0 + .byte 0x0, 0x93, 0xcf, 0x0 gdt_entry_end: my_gdtdesc: @@ -356,9 +356,6 @@ Upcall: call _store_returnaddress ; store away pop ax - ; XXX GDT munging requires ROM to be writable! - call _enable_rom_write_access - rol bx, #2 mov si, #jmptable seg cs @@ -385,8 +382,6 @@ Upcall: mov bp,sp push eax ; preserve work register - call _disable_rom_write_access - call _get_returnaddress mov 2[bp], ax ; 16bit return address onto stack