lib: Fix a typo and add documentation comments
Fix a typo in lib/alloc_phys.h and add documentation comments to all
functions in lib/vmalloc.h
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-Id: <20200622162141.279716-6-imbrenda@linux.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/lib/alloc_phys.h b/lib/alloc_phys.h
index ea38f91..611aa70 100644
--- a/lib/alloc_phys.h
+++ b/lib/alloc_phys.h
@@ -39,7 +39,7 @@
/*
* phys_alloc_get_unused allocates all remaining memory from the region
* passed to phys_alloc_init, returning the newly allocated memory's base
- * and top addresses. phys_allo_get_unused will still return base and top
+ * and top addresses. phys_alloc_get_unused will still return base and top
* when no free memory is remaining, but base will equal top.
*/
extern void phys_alloc_get_unused(phys_addr_t *p_base, phys_addr_t *p_top);
diff --git a/lib/vmalloc.h b/lib/vmalloc.h
index 3658b80..2b563f4 100644
--- a/lib/vmalloc.h
+++ b/lib/vmalloc.h
@@ -3,15 +3,23 @@
#include <asm/page.h>
+/* Allocate consecutive virtual pages (without backing) */
extern void *alloc_vpages(ulong nr);
+/* Allocate one virtual page (without backing) */
extern void *alloc_vpage(void);
+/* Set the top of the virtual address space */
extern void init_alloc_vpage(void *top);
+/* Set up the virtual allocator; also sets up the page allocator if needed */
extern void setup_vm(void);
+/* Set up paging */
extern void *setup_mmu(phys_addr_t top);
+/* Walk the page table and resolve the virtual address to a physical address */
extern phys_addr_t virt_to_pte_phys(pgd_t *pgtable, void *virt);
+/* Map the virtual address to the physical address for the given page tables */
extern pteval_t *install_page(pgd_t *pgtable, phys_addr_t phys, void *virt);
+/* Map consecutive physical pages */
void *vmap(phys_addr_t phys, size_t size);
#endif
