#include <palacios/vmm.h>
#include <palacios/vm_guest_mem.h>
#include <palacios/vm_guest.h>
+#include <palacios/vmm_ctrl_regs.h>
+/* This always build 2 level page tables - no large pages are used */
+
static inline int handle_passthrough_pagefault_32(struct guest_info * info,
addr_t fault_addr,
- pf_error_t error_code) {
+ pf_error_t error_code,
+ addr_t *actual_start, addr_t *actual_end) {
+
// Check to see if pde and pte exist (create them if not)
pde32_t * pde = NULL;
pte32_t * pte = NULL;
}
+ *actual_start = BASE_TO_PAGE_ADDR_4KB(PAGE_BASE_ADDR_4KB(fault_addr));
+ *actual_end = BASE_TO_PAGE_ADDR_4KB(PAGE_BASE_ADDR_4KB(fault_addr)+1)-1;
+
// Fix up the PDE entry
if (pde[pde_index].present == 0) {
- pte = (pte32_t *)create_generic_pt_page();
+ pte = (pte32_t *)create_generic_pt_page(info);
pde[pde_index].present = 1;
pde[pde_index].writable = 1;
-static inline int invalidate_addr_32(struct guest_info * info, addr_t inv_addr) {
+static inline int invalidate_addr_32_internal(struct guest_info * info, addr_t inv_addr,
+ addr_t *actual_start, uint64_t *actual_size) {
pde32_t * pde = NULL;
pte32_t * pte = NULL;
}
if (pde[pde_index].present == 0) {
+ *actual_start = BASE_TO_PAGE_ADDR_4MB(PAGE_BASE_ADDR_4MB(inv_addr));
+ *actual_size = PAGE_SIZE_4MB;
return 0;
} else if (pde[pde_index].large_page) {
pde[pde_index].present = 0;
pde[pde_index].writable = 0;
pde[pde_index].user_page = 0;
+ *actual_start = BASE_TO_PAGE_ADDR_4MB(PAGE_BASE_ADDR_4MB(inv_addr));
+ *actual_size = PAGE_SIZE_4MB;
return 0;
}
pte[pte_index].writable = 0;
pte[pte_index].user_page = 0;
+ *actual_start = BASE_TO_PAGE_ADDR_4KB(PAGE_BASE_ADDR_4KB(inv_addr));
+ *actual_size = PAGE_SIZE_4KB;
+
return 0;
}
+static inline int invalidate_addr_32(struct guest_info * core, addr_t inv_addr,
+ addr_t *actual_start, addr_t *actual_end)
+{
+ uint64_t len;
+ int rc;
+
+ rc = invalidate_addr_32_internal(core,inv_addr,actual_start,&len);
+
+ *actual_end = *actual_start + len - 1;
+
+ return rc;
+}
+
+static inline int invalidate_addr_32_range(struct guest_info * core, addr_t inv_addr_start, addr_t inv_addr_end,
+ addr_t *actual_start, addr_t *actual_end)
+{
+ addr_t next;
+ addr_t start;
+ uint64_t len;
+ int rc;
+
+ for (next=inv_addr_start; next<=inv_addr_end; ) {
+ rc = invalidate_addr_32_internal(core,next,&start, &len);
+ if (next==inv_addr_start) {
+ // first iteration, capture where we start invalidating
+ *actual_start = start;
+ }
+ if (rc) {
+ return rc;
+ }
+ next = start + len;
+ *actual_end = next;
+ }
+ // last iteration, actual_end is off by one
+ (*actual_end)--;
+ return 0;
+}
+
+
+
#endif