diff options
Diffstat (limited to 'sys/i386/include/pmap.h')
| -rw-r--r-- | sys/i386/include/pmap.h | 85 |
1 files changed, 81 insertions, 4 deletions
diff --git a/sys/i386/include/pmap.h b/sys/i386/include/pmap.h index 922ebc3..3c5a711 100644 --- a/sys/i386/include/pmap.h +++ b/sys/i386/include/pmap.h @@ -68,7 +68,14 @@ /* Our various interpretations of the above */ #define PG_W PG_AVAIL1 /* "Wired" pseudoflag */ #define PG_MANAGED PG_AVAIL2 + +#ifdef PAE +#define PG_FRAME (0x000ffffffffff000ull) +#define PG_PS_FRAME (0x000fffffffe00000ull) +#else #define PG_FRAME (~((vm_paddr_t)PAGE_MASK)) +#define PG_PS_FRAME (0xffc00000) +#endif #define PG_PROT (PG_RW|PG_U) /* all protection bits . */ #define PG_N (PG_NC_PWT|PG_NC_PCD) /* Non-cacheable */ @@ -175,6 +182,77 @@ extern pd_entry_t *IdlePTD; /* physical address of "Idle" state directory */ * the corresponding pde that in turn maps it. */ #define vtopte(va) (PTmap + i386_btop(va)) +#define vtophys(va) pmap_kextract(((vm_offset_t) (va))) + +#ifdef XEN +#include <machine/xen/xen-os.h> +#include <machine/xen/xenvar.h> +#include <machine/xen/xenpmap.h> +#ifndef TRUE +#define TRUE 1 +#endif +#ifndef FALSE +#define FALSE 0 +#endif + +#define PG_KERNEL (PG_V | PG_A | PG_RW | PG_M) + +#define MACH_TO_VM_PAGE(ma) PHYS_TO_VM_PAGE(xpmap_mtop((ma))) +#define VM_PAGE_TO_MACH(m) xpmap_ptom(VM_PAGE_TO_PHYS((m))) + +static __inline vm_paddr_t +pmap_kextract_ma(vm_offset_t va) +{ + vm_paddr_t ma; + if ((ma = PTD[va >> PDRSHIFT]) & PG_PS) { + ma = (ma & ~(NBPDR - 1)) | (va & (NBPDR - 1)); + } else { + ma = (*vtopte(va) & PG_FRAME) | (va & PAGE_MASK); + } + return ma; +} + +static __inline vm_paddr_t +pmap_kextract(vm_offset_t va) +{ + return xpmap_mtop(pmap_kextract_ma(va)); +} +#define vtomach(va) pmap_kextract_ma(((vm_offset_t) (va))) + +vm_paddr_t pmap_extract_ma(struct pmap *pmap, vm_offset_t va); + +void pmap_kenter_ma(vm_offset_t va, vm_paddr_t pa); +void pmap_map_readonly(struct pmap *pmap, vm_offset_t va, int len); +void pmap_map_readwrite(struct pmap *pmap, vm_offset_t va, int len); + +static __inline pt_entry_t +pte_load_store(pt_entry_t *ptep, pt_entry_t v) +{ + pt_entry_t r; + + v = xpmap_ptom(v); + r = *ptep; + PT_SET_VA(ptep, v, TRUE); + return (r); +} + +static __inline pt_entry_t +pte_load_store_ma(pt_entry_t *ptep, pt_entry_t v) +{ + pt_entry_t r; + + r = *ptep; + PT_SET_VA_MA(ptep, v, TRUE); + return (r); +} + +#define pte_load_clear(ptep) pte_load_store((ptep), (pt_entry_t)0ULL) + +#define pte_store(ptep, pte) pte_load_store((ptep), (pt_entry_t)pte) +#define pte_store_ma(ptep, pte) pte_load_store_ma((ptep), (pt_entry_t)pte) +#define pde_store_ma(ptep, pte) pte_load_store_ma((ptep), (pt_entry_t)pte) + +#elif !defined(XEN) /* * Routine: pmap_kextract @@ -195,10 +273,9 @@ pmap_kextract(vm_offset_t va) } return pa; } +#endif -#define vtophys(va) pmap_kextract(((vm_offset_t) (va))) - -#ifdef PAE +#if defined(PAE) && !defined(XEN) static __inline pt_entry_t pte_load(pt_entry_t *ptep) @@ -231,7 +308,7 @@ pte_load_store(pt_entry_t *ptep, pt_entry_t v) #define pte_store(ptep, pte) pte_load_store((ptep), (pt_entry_t)pte) -#else /* PAE */ +#elif !defined (PAE) && !defined(XEN) static __inline pt_entry_t pte_load(pt_entry_t *ptep) |
