A Virtual Machine Migration Strategy Based on the Relevance of Services against Side-Channel Attacks

Algorithm 1

Build VM migration group.

	Input: server load information
Output: VM migration group G
Method:
(1)	Analyze the server load information to get the original server as ;
(2)	Get the set of virtual machines on as AllVmList, set to ;
(3)	Calculate the VM load on , mark it as , and sort in descending order of load;
(4)	Initialize the VM migration group G;
(5)	while(! = null) do
(6)	find the VM with and set it as ;
(7)	;
(8)	if () then
(9)	add to G;
(10)	if then
(11)	return VM migration group G;
(12)	else
(13)	break;
(14)	end if
(15)	end if
(16)	end while
(17)	while(! = null) then
(18)	select in , that is, select the VM with the most service relevance and set it to ;
(19)	;
(20)	if() then
(21)	add to G;
(22)	if () then
(23)	break;
(24)	else
(25)	continue;
(26)	end if
(27)	end if
(28)	end while
(29)	return VM migration group G;