To a 6-quart or large pressure cooker / Instant Pot, add the olive oil. Turn to SAUTE and let the oil heat. Once the oil is hot, add the onion and cook until beginning to soften, about 3 minutes. Add the sweet potatoes, bell pepper, jalapeno, garlic, chili powder, cinnamon, cumin, and salt. Cook for 1 to 2 additional minutes, until the garlic is fragrant.