Thread (5 messages) 5 messages, 4 authors, 2007-06-11

[patch 4/9] lguest: the asm offsets

STALE7054d

From: akpm@linux-foundation.org
Date: 2007-05-09 09:54:27
Also in: lkml

From: Rusty Russell <redacted>

This is the structure offsets required by lg.ko's switcher.S.

Unfortunately we don't have infrastructure for private asm-offsets
creation.

Signed-off-by: Rusty Russell <redacted>
Cc: Andi Kleen <redacted>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/i386/kernel/asm-offsets.c |   19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff -puN arch/i386/kernel/asm-offsets.c~lguest-the-asm-offsets arch/i386/kernel/asm-offsets.c
--- a/arch/i386/kernel/asm-offsets.c~lguest-the-asm-offsets
+++ a/arch/i386/kernel/asm-offsets.c
@@ -17,6 +17,10 @@
 #include <asm/pgtable.h>
 #include <asm/thread_info.h>
 #include <asm/elf.h>
+#ifdef CONFIG_LGUEST_GUEST
+#include <linux/lguest.h>
+#include "../../../drivers/lguest/lg.h"
+#endif
 
 #define DEFINE(sym, val) \
         asm volatile("\n->" #sym " %0 " #val : : "i" (val))
@@ -116,4 +120,19 @@ void foo(void)
 	OFFSET(PARAVIRT_iret, paravirt_ops, iret);
 	OFFSET(PARAVIRT_read_cr0, paravirt_ops, read_cr0);
 #endif
+
+#ifdef CONFIG_LGUEST_GUEST
+	BLANK();
+	OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled);
+	OFFSET(LGUEST_PAGES_host_gdt_desc, lguest_pages, state.host_gdt_desc);
+	OFFSET(LGUEST_PAGES_host_idt_desc, lguest_pages, state.host_idt_desc);
+	OFFSET(LGUEST_PAGES_host_cr3, lguest_pages, state.host_cr3);
+	OFFSET(LGUEST_PAGES_host_sp, lguest_pages, state.host_sp);
+	OFFSET(LGUEST_PAGES_guest_gdt_desc, lguest_pages,state.guest_gdt_desc);
+	OFFSET(LGUEST_PAGES_guest_idt_desc, lguest_pages,state.guest_idt_desc);
+	OFFSET(LGUEST_PAGES_guest_gdt, lguest_pages, state.guest_gdt);
+	OFFSET(LGUEST_PAGES_regs_trapnum, lguest_pages, regs.trapnum);
+	OFFSET(LGUEST_PAGES_regs_errcode, lguest_pages, regs.errcode);
+	OFFSET(LGUEST_PAGES_regs, lguest_pages, regs);
+#endif
 }
_
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