On Thu, Apr 17, 2008 at 2:58 PM, H. Peter Anvin [EMAIL PROTECTED] wrote:
Nguyen Anh Quynh wrote:
This patch replaces the current assembly code of Extboot option rom
with new C code. Patch is against kvm-66.
This version returns an error code in case int 13 handler cannot
handle a
On Thu, Apr 17, 2008 at 3:00 PM, H. Peter Anvin [EMAIL PROTECTED] wrote:
+ .globl linux_boot
+linux_boot:
+ cli
+ cld
+ mov $0x9000, %ax
+ mov %ax, %ds
+ mov %ax, %es
+ mov %ax, %fs
+ mov %ax, %gs
+ mov %ax, %ss
+
On Thu, Apr 17, 2008 at 4:36 PM, Carlo Marcelo Arenas Belon
[EMAIL PROTECTED] wrote:
On Thu, Apr 17, 2008 at 10:30:27AM +0900, Nguyen Anh Quynh wrote:
+++ b/extboot/farvar.h
@@ -0,0 +1,113 @@
+// Code to access multiple segments within gcc.
+//
+// Copyright (C) 2008 Kevin O'Connor
Nguyen Anh Quynh wrote:
Actually, this code is left from the original code of Anthony, and it
seems he took it from qemu 0.8 version.
Anthony, may you explain why you want to hijact the linux boot process
here? If I understand correctly, we can just let the original int19
execute, and if
Nguyen Anh Quynh wrote:
Actually, this code is left from the original code of Anthony, and it
seems he took it from qemu 0.8 version.
Anthony, may you explain why you want to hijact the linux boot process
here? If I understand correctly, we can just let the original int19
execute, and if
Nguyen Anh Quynh wrote:
On Thu, Apr 17, 2008 at 3:00 PM, H. Peter Anvin [EMAIL PROTECTED] wrote:
+ .globl linux_boot
+linux_boot:
+ cli
+ cld
+ mov $0x9000, %ax
+ mov %ax, %ds
+ mov %ax, %es
+ mov %ax, %fs
+ mov %ax, %gs
+ mov
H. Peter Anvin wrote:
Nguyen Anh Quynh wrote:
Actually, this code is left from the original code of Anthony, and it
seems he took it from qemu 0.8 version.
Anthony, may you explain why you want to hijact the linux boot process
here? If I understand correctly, we can just let the original
On 4/18/08, Anthony Liguori [EMAIL PROTECTED] wrote:
Nguyen Anh Quynh wrote:
On Thu, Apr 17, 2008 at 3:00 PM, H. Peter Anvin [EMAIL PROTECTED] wrote:
+ .globl linux_boot
+linux_boot:
+ cli
+ cld
+ mov $0x9000, %ax
+ mov %ax, %ds
Anthony Liguori wrote:
The thinking is to eliminate the need to hijack the boot sector when
using the -kernel option. However, the linux boot stuff in extboot has
been broken since hpa rewrote the boot code. It can be removed for now
and I'll eventually revisit it.
It probably makes
Anthony Liguori wrote:
Nguyen Anh Quynh wrote:
The thinking is to eliminate the need to hijack the boot sector when
using
the -kernel option.
I see, but does that offer any advantage over the current approach?
You no longer have to specify a -hda option when using -kernel.
On 4/18/08, Anthony Liguori [EMAIL PROTECTED] wrote:
Nguyen Anh Quynh wrote:
The thinking is to eliminate the need to hijack the boot sector when
using
the -kernel option.
I see, but does that offer any advantage over the current approach?
You no longer have to
Nguyen Anh Quynh wrote:
You no longer have to specify a -hda option when using -kernel.
Without -hda, how can we load disk image? Or you mean you only want to
test the kernel?
Right. You may be booting from NFS, iSCSI, or something like that.
Regards,
Anthony Liguori
Thanks,
Nguyen Anh Quynh wrote:
This patch replaces the current assembly code of Extboot option rom
with new C code. Patch is against kvm-66.
This version returns an error code in case int 13 handler cannot
handle a requested function.
Signed-off-by: Nguyen Anh Quynh [EMAIL PROTECTED]
+
+ .globl linux_boot
+linux_boot:
+ cli
+ cld
+ mov $0x9000, %ax
+ mov %ax, %ds
+ mov %ax, %es
+ mov %ax, %fs
+ mov %ax, %gs
+ mov %ax, %ss
+ mov $0x8ffe, %sp
+ ljmp $0x9000 + 0x20, $0
The hard use of segment 9000 is really highly unfortunate
On Thu, Apr 17, 2008 at 10:30:27AM +0900, Nguyen Anh Quynh wrote:
+++ b/extboot/farvar.h
@@ -0,0 +1,113 @@
+// Code to access multiple segments within gcc.
+//
+// Copyright (C) 2008 Kevin O'Connor [EMAIL PROTECTED]
+//
+// This file may be distributed under the terms of the GNU GPLv3 license.
This patch replaces the current assembly code of Extboot option rom
with new C code. Patch is against kvm-66.
This version returns an error code in case int 13 handler cannot
handle a requested function.
Signed-off-by: Nguyen Anh Quynh [EMAIL PROTECTED]
# diffstat extboot3.diff
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