[kvm-devel] [PATCH 07 of 17] Move kvm_create_memory_alias & kvm_destroy_memory_alias to libkvm-x86.c

[Jerone Y. <jy...@us...>]

# HG changeset patch
# User Jerone Young <jy...@us...>
# Date 1194367649 21600
# Node ID cb186258bc6ecf05ded03d81a3d2ee820e58f605
# Parent  7ea01f673a05fe66cb0d9c514b5a43ddcd72c07f
Move kvm_create_memory_alias & kvm_destroy_memory_alias to libkvm-x86.c

Signed-off-by: Jerone Young <jy...@us...>

diff --git a/libkvm/libkvm-x86.c b/libkvm/libkvm-x86.c
--- a/libkvm/libkvm-x86.c
+++ b/libkvm/libkvm-x86.c
@@ -294,3 +294,32 @@ void *kvm_create_kernel_phys_mem(kvm_con
 	return ptr;
 }
 
+int kvm_create_memory_alias(kvm_context_t kvm,
+			    uint64_t phys_addr,
+			    uint64_t phys_start,
+			    uint64_t len,
+			    uint64_t target_phys)
+{
+	struct kvm_memory_alias alias = {
+		.flags = 0,
+		.guest_phys_addr = phys_start,
+		.memory_size = len,
+		.target_phys_addr = target_phys,
+	};
+	int fd = kvm->vm_fd;
+	int r;
+
+	alias.slot = get_slot(phys_addr);
+
+	r = ioctl(fd, KVM_SET_MEMORY_ALIAS, &alias);
+	if (r == -1)
+	    return -errno;
+
+	return 0;
+}
+
+int kvm_destroy_memory_alias(kvm_context_t kvm, uint64_t phys_addr)
+{
+	return kvm_create_memory_alias(kvm, phys_addr, 0, 0, 0);
+}
+