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xpmem: support large page

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1. try to use as large page as possible on attach
2. pre-map resident remote pages on attach

Change-Id: I5580682a4199e94085a9bad9ce3958a0f14cdcea
This commit is contained in:
Yoshihisa Morizumi
2021-01-08 16:56:32 +09:00
committed by Masamichi Takagi
parent 3aaa5350f0
commit d2db639853
68 changed files with 4878 additions and 244 deletions
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6
kernel/include/process.h
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@@ -55,6 +55,7 @@
#define VR_MEMTYPE_MASK 0x0f000000
#define VR_PAGEOUT 0x10000000
#define VR_DONTDUMP 0x20000000
#define VR_XPMEM 0x40000000
#define VR_WIPEONFORK 0x80000000
#define PROT_TO_VR_FLAG(prot) (((unsigned long)(prot) << 16) & VR_PROT_MASK)
@@ -850,7 +851,7 @@ int add_process_memory_range(struct process_vm *vm,
unsigned long start, unsigned long end,
unsigned long phys, unsigned long flag,
struct memobj *memobj, off_t offset,
int pgshift, struct vm_range **rp);
int pgshift, void *private_data, struct vm_range **rp);
int remove_process_memory_range(struct process_vm *vm, unsigned long start,
unsigned long end, int *ro_freedp);
int split_process_memory_range(struct process_vm *vm,
@@ -875,6 +876,9 @@ struct vm_range *previous_process_memory_range(
int extend_up_process_memory_range(struct process_vm *vm,
struct vm_range *range, uintptr_t newend);
int page_fault_process_memory_range(struct process_vm *vm,
struct vm_range *range,
uintptr_t fault_addr, uint64_t reason);
int page_fault_process_vm(struct process_vm *fault_vm, void *fault_addr,
uint64_t reason);
int remove_process_region(struct process_vm *vm,