diff options
author | Jeremy Fitzhardinge <jeremy@xensource.com> | 2007-10-16 22:51:29 +0400 |
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committer | Jeremy Fitzhardinge <jeremy@goop.org> | 2007-10-16 22:51:29 +0400 |
commit | 93b1eab3d29e7ea32ee583de3362da84db06ded8 (patch) | |
tree | 8dc7eb61d4c65a48f9ce21a49e392f4967185cfd /drivers/lguest/core.c | |
parent | ab9c232286c2b77be78441c2d8396500b045777e (diff) | |
download | linux-93b1eab3d29e7ea32ee583de3362da84db06ded8.tar.xz |
paravirt: refactor struct paravirt_ops into smaller pv_*_ops
This patch refactors the paravirt_ops structure into groups of
functionally related ops:
pv_info - random info, rather than function entrypoints
pv_init_ops - functions used at boot time (some for module_init too)
pv_misc_ops - lazy mode, which didn't fit well anywhere else
pv_time_ops - time-related functions
pv_cpu_ops - various privileged instruction ops
pv_irq_ops - operations for managing interrupt state
pv_apic_ops - APIC operations
pv_mmu_ops - operations for managing pagetables
There are several motivations for this:
1. Some of these ops will be general to all x86, and some will be
i386/x86-64 specific. This makes it easier to share common stuff
while allowing separate implementations where needed.
2. At the moment we must export all of paravirt_ops, but modules only
need selected parts of it. This allows us to export on a case by case
basis (and also choose which export license we want to apply).
3. Functional groupings make things a bit more readable.
Struct paravirt_ops is now only used as a template to generate
patch-site identifiers, and to extract function pointers for inserting
into jmp/calls when patching. It is only instantiated when needed.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Cc: Zach Amsden <zach@vmware.com>
Cc: Avi Kivity <avi@qumranet.com>
Cc: Anthony Liguory <aliguori@us.ibm.com>
Cc: "Glauber de Oliveira Costa" <glommer@gmail.com>
Cc: Jun Nakajima <jun.nakajima@intel.com>
Diffstat (limited to 'drivers/lguest/core.c')
-rw-r--r-- | drivers/lguest/core.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c index 4a315f08a567..a0788c12b392 100644 --- a/drivers/lguest/core.c +++ b/drivers/lguest/core.c @@ -248,8 +248,8 @@ static void unmap_switcher(void) } /*H:130 Our Guest is usually so well behaved; it never tries to do things it - * isn't allowed to. Unfortunately, "struct paravirt_ops" isn't quite - * complete, because it doesn't contain replacements for the Intel I/O + * isn't allowed to. Unfortunately, Linux's paravirtual infrastructure isn't + * quite complete, because it doesn't contain replacements for the Intel I/O * instructions. As a result, the Guest sometimes fumbles across one during * the boot process as it probes for various things which are usually attached * to a PC. @@ -694,7 +694,7 @@ static int __init init(void) /* Lguest can't run under Xen, VMI or itself. It does Tricky Stuff. */ if (paravirt_enabled()) { - printk("lguest is afraid of %s\n", paravirt_ops.name); + printk("lguest is afraid of %s\n", pv_info.name); return -EPERM; } |