Get rid of assumptions in the hypervisor that the host physical memory

associated with guest physical memory is contiguous.

In this case vm_malloc() was using vm_gpa2hpa() to indirectly infer whether
or not the address range had already been allocated.

Replace this instead with an explicit API 'vm_gpa_available()' that returns
TRUE if a page is available for allocation in guest physical address space.

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/amd64/include/vmm.h b/sys/amd64/include/vmm.h
index 0b3a29c..bb2f778 100644
--- a/sys/amd64/include/vmm.h
+++ b/sys/amd64/include/vmm.h
@@ -89,7 +89,7 @@ extern struct vmm_ops vmm_ops_amd;
 struct vm *vm_create(const char *name);
 void vm_destroy(struct vm *vm);
 const char *vm_name(struct vm *vm);
-int vm_malloc(struct vm *vm, vm_paddr_t gpa, size_t len, vm_paddr_t *ret_hpa);
+int vm_malloc(struct vm *vm, vm_paddr_t gpa, size_t len);
 int vm_map_mmio(struct vm *vm, vm_paddr_t gpa, size_t len, vm_paddr_t hpa);
 int vm_unmap_mmio(struct vm *vm, vm_paddr_t gpa, size_t len);
 vm_paddr_t vm_gpa2hpa(struct vm *vm, vm_paddr_t gpa, size_t size);