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Tofu: keep track of stags per memory range

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Change-Id: I033beaeee3b141dab4485dd3a2a3848eaa84e54e
This commit is contained in:
Balazs Gerofi
2020-12-15 14:43:12 +09:00
committed by Masamichi Takagi
parent 75694152f0
commit 0b82c8942b
4 changed files with 306 additions and 2 deletions
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12
kernel/include/process.h
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@ -395,6 +395,9 @@ struct vm_range {
off_t objoff;
int pgshift; /* page size. 0 means THP */
int padding;
#ifdef ENABLE_TOFU
struct list_head tofu_stag_list;
#endif
void *private_data;
};
@ -764,6 +767,9 @@ struct thread {
};
#define VM_RANGE_CACHE_SIZE 4
#ifdef ENABLE_TOFU
#define TOFU_STAG_HASH_SIZE 4
#endif
struct process_vm {
struct address_space *address_space;
@ -796,6 +802,12 @@ struct process_vm {
struct vm_range *range_cache[VM_RANGE_CACHE_SIZE];
int range_cache_ind;
struct swapinfo *swapinfo;
#ifdef ENABLE_TOFU
/* Tofu STAG hash */
ihk_spinlock_t tofu_stag_lock;
struct list_head tofu_stag_hash[TOFU_STAG_HASH_SIZE];
#endif
};
static inline int has_cap_ipc_lock(struct thread *th)