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Differential D36701 Diff 110969 sys/arm64/include/vmparam.h

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sys/arm64/include/vmparam.h

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* out of range "hole" in the middle. * out of range "hole" in the middle.
* *
* We use the full 48 bits for each region, however the kernel may only use * We use the full 48 bits for each region, however the kernel may only use
* a limited range within this space. * a limited range within this space.
* *
* Upper region: 0xffffffffffffffff Top of virtual memory * Upper region: 0xffffffffffffffff Top of virtual memory
* *
* 0xfffffeffffffffff End of DMAP * 0xfffffeffffffffff End of DMAP
* 0xfffffa0000000000 Start of DMAP * 0xffffa00000000000 Start of DMAP
* *
* 0xffff009fffffffff End of KASAN shadow map
* 0xffff008000000000 Start of KASAN shadow map
*
* 0xffff007fffffffff End of KVA * 0xffff007fffffffff End of KVA
* 0xffff000000000000 Kernel base address & start of KVA * 0xffff000000000000 Kernel base address & start of KVA
* *
* Hole: 0xfffeffffffffffff * Hole: 0xfffeffffffffffff
* 0x0001000000000000 * 0x0001000000000000
* *
* Lower region: 0x0000ffffffffffff End of user address space * Lower region: 0x0000ffffffffffff End of user address space
* 0x0000000000000000 Start of user address space * 0x0000000000000000 Start of user address space
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*/ */
#define VM_MIN_ADDRESS (0x0000000000000000UL) #define VM_MIN_ADDRESS (0x0000000000000000UL)
#define VM_MAX_ADDRESS (0xffffffffffffffffUL) #define VM_MAX_ADDRESS (0xffffffffffffffffUL)
/* 512 GiB of kernel addresses */ /* 512 GiB of kernel addresses */
#define VM_MIN_KERNEL_ADDRESS (0xffff000000000000UL) #define VM_MIN_KERNEL_ADDRESS (0xffff000000000000UL)
#define VM_MAX_KERNEL_ADDRESS (0xffff008000000000UL) #define VM_MAX_KERNEL_ADDRESS (0xffff008000000000UL)
/* 128 GiB KASAN shadow map */
#define KASAN_MIN_ADDRESS (0xffff008000000000UL)
#define KASAN_MAX_ADDRESS (0xffff00a000000000UL)
/* The address bits that hold a pointer authentication code */ /* The address bits that hold a pointer authentication code */
#define PAC_ADDR_MASK (0xff7f000000000000UL) #define PAC_ADDR_MASK (0xff7f000000000000UL)
/* If true addr is in the kernel address space */ /* If true addr is in the kernel address space */
#define ADDR_IS_KERNEL(addr) (((addr) & (1ul << 55)) == (1ul << 55)) #define ADDR_IS_KERNEL(addr) (((addr) & (1ul << 55)) == (1ul << 55))
/* If true addr is in its canonical form (i.e. no TBI, PAC, etc.) */ /* If true addr is in its canonical form (i.e. no TBI, PAC, etc.) */
#define ADDR_IS_CANONICAL(addr) \ #define ADDR_IS_CANONICAL(addr) \
(((addr) & 0xffff000000000000UL) == 0 || \ (((addr) & 0xffff000000000000UL) == 0 || \
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/* /*
* Initial pagein size of beginning of executable file. * Initial pagein size of beginning of executable file.
*/ */
#ifndef VM_INITIAL_PAGEIN #ifndef VM_INITIAL_PAGEIN
#define VM_INITIAL_PAGEIN 16 #define VM_INITIAL_PAGEIN 16
#endif #endif
#if !defined(KASAN) && !defined(KMSAN)
#define UMA_MD_SMALL_ALLOC #define UMA_MD_SMALL_ALLOC
#endif
#ifndef LOCORE #ifndef LOCORE
extern vm_paddr_t dmap_phys_base; extern vm_paddr_t dmap_phys_base;
extern vm_paddr_t dmap_phys_max; extern vm_paddr_t dmap_phys_max;
extern vm_offset_t dmap_max_addr; extern vm_offset_t dmap_max_addr;
extern vm_offset_t vm_max_kernel_address; extern vm_offset_t vm_max_kernel_address;
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