RE: [Xen-devel] [PATCH] HVM SMBIOS v3 [5/5]

["Li, Xin B" <xin.b.li@xxxxxxxxx>]

This patch breaks VMX boot from CDROM, I'm not familiar with the BIOS code, can 
someone help to fix it?
BTW, it's changeset 11095.
-Xin

>-----Original Message-----
>From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx 
>[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
>Andrew D. Ball
>Sent: 2006年8月15日 1:45
>To: xen-devel@xxxxxxxxxxxxxxxxxxx
>Subject: [Xen-devel] [PATCH] HVM SMBIOS v3 [5/5]
>
>[HVM] Pick up SMBIOS entry point in the ROMBIOS.
>
>Signed-off-by: Andrew D. Ball <aball@xxxxxxxxxx>
>
>diff -r 1d817bfc5ed9 tools/firmware/rombios/rombios.c
>--- a/tools/firmware/rombios/rombios.c Fri Aug 11 14:22:54 2006 +0100
>+++ b/tools/firmware/rombios/rombios.c Fri Aug 11 14:55:22 2006 -0400
>@@ -9443,6 +9443,43 @@ rom_scan_increment:
>   mov  ds, ax
>   ret
> 
>+#ifdef HVMASSIST
>+
>+; Copy the SMBIOS entry point over from 0x9f000, where 
>hvmloader left it.
>+; The entry point must be somewhere in 0xf0000-0xfffff on a 
>16-byte boundary,
>+; but the tables themeselves can be elsewhere.
>+smbios_init:
>+  push ax
>+  push cx
>+  push es
>+  push ds
>+  push di
>+  push si
>+
>+  mov cx, #0x001f ; 0x1f bytes to copy
>+  mov ax, #0xf000
>+  mov es, ax      ; destination segment is 0xf0000
>+  mov di, smbios_entry_point ; destination offset
>+  mov ax, #0x9f00
>+  mov ds, ax      ; source segment is 0x9f000
>+  mov si, #0x0000 ; source offset is 0
>+  cld
>+  rep
>+    movsb
>+
>+  pop si
>+  pop di
>+  pop ds
>+  pop es
>+  pop cx
>+  pop ax
>+
>+  ret
>+
>+#endif
>+
>+
>+
> ;; for 'C' strings and other data, insert them here with
> ;; a the following hack:
> ;; DATA_SEG_DEFS_HERE
>@@ -9724,6 +9761,7 @@ post_default_ints:
> 
> #ifdef HVMASSIST
>   call _copy_e820_table
>+  call smbios_init
> #endif
> 
>   call rom_scan
>@@ -10538,6 +10576,13 @@ dw 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
> dw 
>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
> ;; 768 bytes
> dw 
>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
> ;; 832 bytes
> dw 
>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
> ;; 896 bytes
>+
>+.align 16
>+smbios_entry_point:
>+db 0,0,0,0,0,0,0,0 ; 8 bytes
>+db 0,0,0,0,0,0,0,0 ; 16 bytes
>+db 0,0,0,0,0,0,0,0 ; 24 bytes
>+db 0,0,0,0,0,0,0   ; 31 bytes
> ASM_END
> 
> #else // !HVMASSIST
>
>
>
>_______________________________________________
>Xen-devel mailing list
>Xen-devel@xxxxxxxxxxxxxxxxxxx
>http://lists.xensource.com/xen-devel
>

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel