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KVM: MMU: Make the way of accessing lpage_info more generic

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Large page information has two elements but one of them, write_count, alone
is accessed by a helper function.

This patch replaces this helper function with more generic one which returns
newly named kvm_lpage_info structure and use it to access the other element
rmap_pde.

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Takuya Yoshikawa
2010-12-07 12:59:07 +09:00
committed by Avi Kivity
parent 443381a828
commit d4dbf47009
2 changed files with 30 additions and 32 deletions
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10
include/linux/kvm_host.h
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@@ -146,6 +146,11 @@ struct kvm_vcpu {
*/
#define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1)
struct kvm_lpage_info {
unsigned long rmap_pde;
int write_count;
};
struct kvm_memory_slot {
gfn_t base_gfn;
unsigned long npages;
@@ -153,10 +158,7 @@ struct kvm_memory_slot {
unsigned long *rmap;
unsigned long *dirty_bitmap;
unsigned long *dirty_bitmap_head;
struct {
unsigned long rmap_pde;
int write_count;
} *lpage_info[KVM_NR_PAGE_SIZES - 1];
struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
unsigned long userspace_addr;
int user_alloc;
int id;