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| author | Rusty Russell <rusty@rustcorp.com.au> | 2006-12-07 02:14:08 +0100 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-12-07 02:14:08 +0100 |
| commit | c9ccf30d77f04064fe5436027ab9d2230c7cdd94 (patch) | |
| tree | 95c028ae6f1e50275ff7a40b987300bb647e8ead /arch/i386/kernel/paravirt.c | |
| parent | d7cd56111f30259e1b532a12e06f59f8e0a20355 (diff) | |
| download | op-kernel-dev-c9ccf30d77f04064fe5436027ab9d2230c7cdd94.zip op-kernel-dev-c9ccf30d77f04064fe5436027ab9d2230c7cdd94.tar.gz | |
[PATCH] paravirt: Add startup infrastructure for paravirtualization
1) Each hypervisor writes a probe function to detect whether we are
running under that hypervisor. paravirt_probe() registers this
function.
2) If vmlinux is booted with ring != 0, we call all the probe
functions (with registers except %esp intact) in link order: the
winner will not return.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'arch/i386/kernel/paravirt.c')
| -rw-r--r-- | arch/i386/kernel/paravirt.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/i386/kernel/paravirt.c b/arch/i386/kernel/paravirt.c index d464604..5a9bd32 100644 --- a/arch/i386/kernel/paravirt.c +++ b/arch/i386/kernel/paravirt.c @@ -19,6 +19,7 @@ #include <linux/module.h> #include <linux/efi.h> #include <linux/bcd.h> +#include <linux/start_kernel.h> #include <asm/bug.h> #include <asm/paravirt.h> @@ -387,6 +388,9 @@ static int __init print_banner(void) } core_initcall(print_banner); +/* We simply declare start_kernel to be the paravirt probe of last resort. */ +paravirt_probe(start_kernel); + struct paravirt_ops paravirt_ops = { .name = "bare hardware", .paravirt_enabled = 0, |
