• Jeremy Fitzhardinge's avatar
    paravirt: refactor struct paravirt_ops into smaller pv_*_ops · 93b1eab3
    Jeremy Fitzhardinge authored
    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: default avatarJeremy Fitzhardinge <jeremy@xensource.com>
    Signed-off-by: default avatarRusty 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>
    93b1eab3
hvc_lguest.c 6.61 KB