[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] [PATCH] HVM SMBIOS v3 [5/5]
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
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