amd64/amd64/pmap.c

764 		/* Preset PG_M and PG_A because demotion expects it. */
771 		/* Preset PG_M and PG_A because demotion expects it. */
2274 	pt_entry_t PG_A, PG_M, PG_RW, PG_V;
2279 	PG_M = pmap_modified_bit(pmap);
2318 		*pml4 = VM_PAGE_TO_PHYS(m) | PG_U | PG_RW | PG_V | PG_A | PG_M;
2349 		*pdp = VM_PAGE_TO_PHYS(m) | PG_U | PG_RW | PG_V | PG_A | PG_M;
2398 		*pd = VM_PAGE_TO_PHYS(m) | PG_U | PG_RW | PG_V | PG_A | PG_M;
2698 	pt_entry_t PG_G, PG_A, PG_M, PG_RW;
2711 	PG_G = PG_A = PG_M = PG_RW = 0;
2738 			PG_M = pmap_modified_bit(pmap);
2762 				if ((tpte & (PG_M | PG_RW)) == (PG_M | PG_RW))
3273 	pt_entry_t PG_A, PG_G, PG_M, PG_RW, PG_V;
3281 	PG_M = pmap_modified_bit(pmap);
3328 	newpde = mptepa | PG_M | PG_A | (oldpde & PG_U) | PG_RW | PG_V;
3331 	KASSERT((oldpde & (PG_M | PG_RW)) != PG_RW,
3332 	    ("pmap_demote_pde: oldpde is missing PG_M"));
3367 	 * PG_A set.  If the old PDE has PG_RW set, it also has PG_M
3369 	 * processor changing the setting of PG_A and/or PG_M between
3445 	pt_entry_t PG_G, PG_A, PG_M, PG_RW;
3449 	PG_M = pmap_modified_bit(pmap);
3473 			if ((oldpde & (PG_M | PG_RW)) == (PG_M | PG_RW))
3507 	pt_entry_t oldpte, PG_A, PG_M, PG_RW;
3511 	PG_M = pmap_modified_bit(pmap);
3521 		if ((oldpte & (PG_M | PG_RW)) == (PG_M | PG_RW))
3730 	pt_entry_t *pte, tpte, PG_A, PG_M, PG_RW;
3755 		PG_M = pmap_modified_bit(pmap);
3771 		if ((tpte & (PG_M | PG_RW)) == (PG_M | PG_RW))
3795 	pt_entry_t PG_G, PG_M, PG_RW;
3798 	PG_M = pmap_modified_bit(pmap);
3811 			if ((oldpde & (PG_M | PG_RW)) == (PG_M | PG_RW))
3815 		newpde &= ~(PG_RW | PG_M);
3840 	pt_entry_t *pte, PG_G, PG_M, PG_RW, PG_V;
3853 	PG_M = pmap_modified_bit(pmap);
3944 				if ((pbits & (PG_MANAGED | PG_M | PG_RW)) ==
3945 				    (PG_MANAGED | PG_M | PG_RW)) {
3949 				pbits &= ~(PG_RW | PG_M);
3984 	pt_entry_t PG_G, PG_A, PG_M, PG_RW, PG_V;
3991 	PG_M = pmap_modified_bit(pmap);
4012 	if ((newpde & (PG_M | PG_RW)) == PG_RW) {
4014 		 * When PG_M is already clear, PG_RW can be cleared without
4037 		if ((oldpte & (PG_M | PG_RW)) == PG_RW) {
4039 			 * When PG_M is already clear, PG_RW can be cleared
4120 	pt_entry_t *pte, PG_G, PG_A, PG_M, PG_RW, PG_V;
4128 	PG_M = pmap_modified_bit(pmap);
4145 		newpte |= PG_M;
4148 	KASSERT((newpte & (PG_M | PG_RW)) != PG_M,
4167 			newpte |= PG_M;
4239 			if (((origpte ^ newpte) & ~(PG_M | PG_A)) == 0)
4276 				if ((origpte & (PG_M | PG_RW)) == (PG_M |
4289 		} else if ((newpte & PG_M) == 0 && (origpte & (PG_M |
4290 		    PG_RW)) == (PG_M | PG_RW)) {
4297 			 * the PTE no longer has PG_M set.
4605 	pt_entry_t PG_A, PG_M, PG_RW, PG_V;
4611 	PG_M = pmap_modified_bit(pmap);
4675 				pde_store(pde, pa | PG_PS | PG_M | PG_A |
4761 	pt_entry_t PG_A, PG_M, PG_V;
4772 	 * we clear PG_M (aka EPT_PG_WRITE) concomitantly, the PG_U bit
4791 	PG_M = pmap_modified_bit(dst_pmap);
4884 					*dst_pte = ptetemp & ~(PG_W | PG_M |
5147 	pt_entry_t PG_M, PG_RW, PG_V;
5166 	PG_M = pmap_modified_bit(pmap);
5244 				if ((tpte & (PG_M | PG_RW)) == (PG_M | PG_RW)) {
5316 	pt_entry_t PG_A, PG_M, PG_RW, PG_V;
5341 			PG_M = pmap_modified_bit(pmap);
5343 			mask |= PG_RW | PG_M;
5374 				PG_M = pmap_modified_bit(pmap);
5376 				mask |= PG_RW | PG_M;
5411 	 * is clear, no PTEs can have PG_M set.
5470 	pt_entry_t oldpte, *pte, PG_M, PG_RW;
5531 		PG_M = pmap_modified_bit(pmap);
5542 			    ~(PG_RW | PG_M)))
5544 			if ((oldpte & PG_M) != 0)
5795 	pt_entry_t *pte, PG_A, PG_G, PG_M, PG_RW, PG_V;
5814 	PG_M = pmap_modified_bit(pmap);
5893 			else if ((*pte & (PG_M | PG_RW)) == (PG_M | PG_RW)) {
5903 				atomic_clear_long(pte, PG_M | PG_A);
5931 	pt_entry_t oldpte, *pte, PG_M, PG_RW, PG_V;
5943 	 * If the page is not PGA_WRITEABLE, then no PTEs can have PG_M set.
5968 		PG_M = pmap_modified_bit(pmap);
5989 						    oldpte & ~(PG_M | PG_RW)))
6013 		PG_M = pmap_modified_bit(pmap);
6019 		if ((*pte & (PG_M | PG_RW)) == (PG_M | PG_RW)) {
6020 			atomic_clear_long(pte, PG_M);
6137 	pt_entry_t PG_A, PG_M, PG_RW, PG_V;
6142 	PG_M = pmap_modified_bit(pmap);
6158 	newpdpe = mpdepa | PG_M | PG_A | (oldpdpe & PG_U) | PG_RW | PG_V;
6161 	KASSERT((oldpdpe & (PG_M | PG_RW)) != PG_RW,
6162 	    ("pmap_demote_pdpe: oldpdpe is missing PG_M"));
6493 	pt_entry_t pte, PG_A, PG_M, PG_RW, PG_V;
6498 	PG_M = pmap_modified_bit(pmap);
6524 		if ((pte & (PG_M | PG_RW)) == (PG_M | PG_RW))
6620 	pt_entry_t *pte, PG_A, PG_M, PG_RW, PG_V;
6630 	PG_M = pmap_modified_bit(pmap);
6662 		*pte |= PG_M;