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| author | Ingo Molnar <mingo@elte.hu> | 2008-10-27 10:50:54 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-27 10:50:54 +0100 |
| commit | 4944dd62de21230af039eda7cd218e9a09021d11 (patch) | |
| tree | bac70f7bab8506c7e1b0408bacbdb0b1d77262e9 /arch/ia64/xen/xensetup.S | |
| parent | f17845e5d97ead8fbdadfd40039e058ec7cf4a42 (diff) | |
| parent | 0173a3265b228da319ceb9c1ec6a5682fd1b2d92 (diff) | |
| download | op-kernel-dev-4944dd62de21230af039eda7cd218e9a09021d11.zip op-kernel-dev-4944dd62de21230af039eda7cd218e9a09021d11.tar.gz | |
Merge commit 'v2.6.28-rc2' into tracing/urgent
Diffstat (limited to 'arch/ia64/xen/xensetup.S')
| -rw-r--r-- | arch/ia64/xen/xensetup.S | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/arch/ia64/xen/xensetup.S b/arch/ia64/xen/xensetup.S new file mode 100644 index 0000000..28fed1f --- /dev/null +++ b/arch/ia64/xen/xensetup.S @@ -0,0 +1,83 @@ +/* + * Support routines for Xen + * + * Copyright (C) 2005 Dan Magenheimer <dan.magenheimer@hp.com> + */ + +#include <asm/processor.h> +#include <asm/asmmacro.h> +#include <asm/pgtable.h> +#include <asm/system.h> +#include <asm/paravirt.h> +#include <asm/xen/privop.h> +#include <linux/elfnote.h> +#include <linux/init.h> +#include <xen/interface/elfnote.h> + + .section .data.read_mostly + .align 8 + .global xen_domain_type +xen_domain_type: + data4 XEN_NATIVE_ASM + .previous + + __INIT +ENTRY(startup_xen) + // Calculate load offset. + // The constant, LOAD_OFFSET, can't be used because the boot + // loader doesn't always load to the LMA specified by the vmlinux.lds. + mov r9=ip // must be the first instruction to make sure + // that r9 = the physical address of startup_xen. + // Usually r9 = startup_xen - LOAD_OFFSET + movl r8=startup_xen + ;; + sub r9=r9,r8 // Usually r9 = -LOAD_OFFSET. + + mov r10=PARAVIRT_HYPERVISOR_TYPE_XEN + movl r11=_start + ;; + add r11=r11,r9 + movl r8=hypervisor_type + ;; + add r8=r8,r9 + mov b0=r11 + ;; + st8 [r8]=r10 + br.cond.sptk.many b0 + ;; +END(startup_xen) + + 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_ENTRY, data8.ua startup_xen - LOAD_OFFSET) + +#define isBP p3 // are we the Bootstrap Processor? + + .text + +GLOBAL_ENTRY(xen_setup_hook) + mov r8=XEN_PV_DOMAIN_ASM +(isBP) movl r9=xen_domain_type;; +(isBP) st4 [r9]=r8 + movl r10=xen_ivt;; + + mov cr.iva=r10 + + /* Set xsi base. */ +#define FW_HYPERCALL_SET_SHARED_INFO_VA 0x600 +(isBP) mov r2=FW_HYPERCALL_SET_SHARED_INFO_VA +(isBP) movl r28=XSI_BASE;; +(isBP) break 0x1000;; + + /* setup pv_ops */ +(isBP) mov r4=rp + ;; +(isBP) br.call.sptk.many rp=xen_setup_pv_ops + ;; +(isBP) mov rp=r4 + ;; + + br.ret.sptk.many rp + ;; +END(xen_setup_hook) |
