All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Andrew D. Ball" <aball@us.ibm.com>
To: xen-devel@lists.xensource.com
Subject: [PATCH] [5/5] SMBIOS -- pick up SMBIOS entry point in ROMBIOS
Date: Fri, 11 Aug 2006 18:07:59 -0400	[thread overview]
Message-ID: <1155334079.4976.2.camel@localhost.localdomain> (raw)

Pick up SMBIOS entry point in the ROMBIOS.

Signed-off-by: Andrew D. Ball <aball@us.ibm.com>

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

                 reply	other threads:[~2006-08-11 22:07 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1155334079.4976.2.camel@localhost.localdomain \
    --to=aball@us.ibm.com \
    --cc=xen-devel@lists.xensource.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.