include/asm/kvm_pgtable.h

17  * struct kvm_pgtable - KVM page-table.
19  * @start_level:	Level at which the page-table walk starts.
20  * @pgd:		Pointer to the first top-level entry of the page-table.
33  * enum kvm_pgtable_prot - Page-table permissions and attributes.
53  * enum kvm_pgtable_walk_flags - Flags to control a depth-first page-table walk.
56  * @KVM_PGTABLE_WALK_TABLE_PRE:		Visit table entries before their
58  * @KVM_PGTABLE_WALK_TABLE_POST:	Visit table entries after their
73  * struct kvm_pgtable_walker - Hook into a page-table walk.
86  * kvm_pgtable_hyp_init() - Initialise a hypervisor stage-1 page-table.
87  * @pgt:	Uninitialised page-table structure to initialise.
95  * kvm_pgtable_hyp_destroy() - Destroy an unused hypervisor stage-1 page-table.
96  * @pgt:	Page-table structure initialised by kvm_pgtable_hyp_init().
98  * The page-table is assumed to be unreachable by any hardware walkers prior
104  * kvm_pgtable_hyp_map() - Install a mapping in a hypervisor stage-1 page-table.
105  * @pgt:	Page-table structure initialised by kvm_pgtable_hyp_init().
126  * kvm_pgtable_stage2_init() - Initialise a guest stage-2 page-table.
127  * @pgt:	Uninitialised page-table structure to initialise.
135  * kvm_pgtable_stage2_destroy() - Destroy an unused guest stage-2 page-table.
136  * @pgt:	Page-table structure initialised by kvm_pgtable_stage2_init().
138  * The page-table is assumed to be unreachable by any hardware walkers prior
144  * kvm_pgtable_stage2_map() - Install a mapping in a guest stage-2 page-table.
145  * @pgt:	Page-table structure initialised by kvm_pgtable_stage2_init().
151  *		allocate page-table pages.
160  * Note that this function will both coalesce existing table entries and split
171  * kvm_pgtable_stage2_unmap() - Remove a mapping from a guest stage-2 page-table.
172  * @pgt:	Page-table structure initialised by kvm_pgtable_stage2_init().
179  * TLB invalidation is performed for each page-table entry cleared during the
180  * unmapping operation and the reference count for the page-table page
192  * @pgt:	Page-table structure initialised by kvm_pgtable_stage2_init().
208  * kvm_pgtable_stage2_mkyoung() - Set the access flag in a page-table entry.
209  * @pgt:	Page-table structure initialised by kvm_pgtable_stage2_init().
210  * @addr:	Intermediate physical address to identify the page-table entry.
214  * If there is a valid, leaf page-table entry used to translate @addr, then
217  * Return: The old page-table entry prior to setting the flag, 0 on failure.
222  * kvm_pgtable_stage2_mkold() - Clear the access flag in a page-table entry.
223  * @pgt:	Page-table structure initialised by kvm_pgtable_stage2_init().
224  * @addr:	Intermediate physical address to identify the page-table entry.
228  * If there is a valid, leaf page-table entry used to translate @addr, then
235  * Return: The old page-table entry prior to clearing the flag, 0 on failure.
241  *				      page-table entry.
242  * @pgt:	Page-table structure initialised by kvm_pgtable_stage2_init().
243  * @addr:	Intermediate physical address to identify the page-table entry.
248  * If there is a valid, leaf page-table entry used to translate @addr, then
259  * kvm_pgtable_stage2_is_young() - Test whether a page-table entry has the
261  * @pgt:	Page-table structure initialised by kvm_pgtable_stage2_init().
262  * @addr:	Intermediate physical address to identify the page-table entry.
266  * Return: True if the page-table entry has the access flag set, false otherwise.
274  * @pgt:	Page-table structure initialised by kvm_pgtable_stage2_init().
286  * kvm_pgtable_walk() - Walk a page-table.
287  * @pgt:	Page-table structure initialised by kvm_pgtable_*_init().
295  * The walker will walk the page-table entries corresponding to the input
299  * a newly installed table.