lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

KVM: PPC: Make use of hash based Shadow MMU

Browse Source 
We just introduced generic functions to handle shadow pages on PPC.
This patch makes the respective backends make use of them, getting
rid of a lot of duplicate code along the way.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Alexander Graf
2010-06-30 15:18:46 +02:00
committed by Avi Kivity
parent 7741909bf1
commit fef093bec0
6 changed files with 54 additions and 190 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
arch/powerpc/include/asm/kvm_host.h
View File

@@ -38,7 +38,13 @@
#define KVM_NR_PAGE_SIZES 1
#define KVM_PAGES_PER_HPAGE(x) (1UL<<31)
#define HPTEG_CACHE_NUM 1024
#define HPTEG_CACHE_NUM (1 << 15)
#define HPTEG_HASH_BITS_PTE 13
#define HPTEG_HASH_BITS_VPTE 13
#define HPTEG_HASH_BITS_VPTE_LONG 5
#define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE)
#define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE)
#define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG)
struct kvm;
struct kvm_run;
@@ -151,6 +157,9 @@ struct kvmppc_mmu {
};
struct hpte_cache {
struct hlist_node list_pte;
struct hlist_node list_vpte;
struct hlist_node list_vpte_long;
u64 host_va;
u64 pfn;
ulong slot;
@@ -282,8 +291,10 @@ struct kvm_vcpu_arch {
unsigned long pending_exceptions;
#ifdef CONFIG_PPC_BOOK3S
struct hpte_cache hpte_cache[HPTEG_CACHE_NUM];
int hpte_cache_offset;
struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
int hpte_cache_count;
#endif
};