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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 11:16:51 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 11:16:51 +0200
commit9702785a747aa27baf46ff504beab6528f21f2dd (patch)
treeab69d6f802f5b680c33999dc089e44982c74595d /arch/x86/xen/xen-head.S
parent334e621a01f86d5bc25e4f742e1eaae6e2d2a97a (diff)
downloadtalos-op-linux-9702785a747aa27baf46ff504beab6528f21f2dd.tar.gz
talos-op-linux-9702785a747aa27baf46ff504beab6528f21f2dd.zip
i386: move xen
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/xen/xen-head.S')
-rw-r--r--arch/x86/xen/xen-head.S38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
new file mode 100644
index 000000000000..f8d6937db2ec
--- /dev/null
+++ b/arch/x86/xen/xen-head.S
@@ -0,0 +1,38 @@
+/* Xen-specific pieces of head.S, intended to be included in the right
+ place in head.S */
+
+#ifdef CONFIG_XEN
+
+#include <linux/elfnote.h>
+#include <asm/boot.h>
+#include <xen/interface/elfnote.h>
+
+.pushsection .init.text
+ENTRY(startup_xen)
+ movl %esi,xen_start_info
+ cld
+ movl $(init_thread_union+THREAD_SIZE),%esp
+ jmp xen_start_kernel
+.popsection
+
+.pushsection .bss.page_aligned
+ .align PAGE_SIZE_asm
+ENTRY(hypercall_page)
+ .skip 0x1000
+.popsection
+
+ ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz "linux")
+ ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION, .asciz "2.6")
+ ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION, .asciz "xen-3.0")
+ ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE, .long __PAGE_OFFSET)
+ ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, .long startup_xen)
+ ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, .long hypercall_page)
+ ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .asciz "!writable_page_tables|pae_pgdir_above_4gb")
+#ifdef CONFIG_X86_PAE
+ ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz "yes")
+#else
+ ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz "no")
+#endif
+ ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz "generic")
+
+#endif /*CONFIG_XEN */
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