From 93b1eab3d29e7ea32ee583de3362da84db06ded8 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 16 Oct 2007 11:51:29 -0700 Subject: 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 Signed-off-by: Rusty Russell Cc: Andi Kleen Cc: Zach Amsden Cc: Avi Kivity Cc: Anthony Liguory Cc: "Glauber de Oliveira Costa" Cc: Jun Nakajima --- drivers/lguest/core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/lguest/core.c') diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c index 4a315f08a56..a0788c12b39 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; } -- cgit v1.2.3