Call Gate Detail

From less to more privileged, for example, Ring 3 to Ring 0

• Verify new stack will hold linkage data. If not, stack fault, error code 0.

• New SS, SP from TSS, based on PL of new CS.

• Old SS:SP copied to new stack.

• Parameters ( up to 15 words or doublewords ) copied from old to new stack.

• Former CS:IP copied to new stack; SP now points here.

• New CS, IP from Call Gate