Zinedine Zidane sought to quash media speculation about his future by stating emphatically that he wants to remain with the club.
Ronaldo scored his 100th Champions League goal for title-holders Real from the penalty spot late in the first half to cancel out Adrien Rabiot's opener for the French side at the Santiago Bernabeu, set up by Neymar.
Real host PSG at the Santiago Bernabeu on Wednesday in the first leg of their last-16 tie, with the return set for March 6 in the French capital.
Zidane's team are fifth, level on 32 points with Sevilla, who crushed Espanyol 3-0 in a dominant display in Catalonia.
With the January transfer window open, speculation has been rife over a possible exit for Ronaldo from the Spanish capital, with former club Manchester United a rumoured eventual destination.
Philippe Coutinhos move to Barcelona from Liverpool for a staggering 160 million Euros has helped him spiral as the second most expensive transfer in the world.
A third Club World Cup in four years brings Madrid level with rivals Barcelona as the most successful side in the competition's history and adds to the La Liga, Champions League, UEFA Super Cup and Spanish Super Cup titles already won by Zinedine Zidane's men this year.
Cristiano Ronaldo, who also won the FIFA Men's Player of the Year award in October, added the 2017 Ballon d'Or to his previous wins in 2008, 2013, 2014 and 2016.
That quartet completed the line-up on the final night of group-stage action that was also notable for another Cristiano Ronaldo goals record in the competition.
Barcelona's 30-year-old Argentinian superstar won the coveted award from 2009 to 2012 and in 2015. Portugal's Ronaldo, who is 32, took the honours in 2008, 2013, 2014 and last year.
UEFA Champions League: Real Madrid had to wait until the 23rd minute to take the lead through Luka Modric, but a run of five goals in 15 minutes either side of half-time sent them through in style
Both Madrid sides suffered a familiar lack of cutting edge in front of goal this La Liga season.
If Cristiano Ronaldo wins the upcoming Ballon D'Or, he will tie Lionel Messi on five victories.
Cristiano Ronaldo was surprisingly left out of the Portugal squad announced on Friday by coach Fernando Santos.
Germany's World Cup winning captain Lothar Matthaus prefers Lionel Messi's style of playing more than Cristiano Ronaldo.
Tottenham Hotspur are through to the Champions League last 16 from Group H with two games to spare, while Real Madrid will have to wait to join them.
Ronaldo's Real Madrid side, who won both La Liga and the Champions League last season, dominated the 2017 Best FIFA football awards at a star-studded ceremony in London on Monday.
Cristiano Ronaldo struck his first La Liga goal of the season five minutes from time to save Real Madrid from losing more ground in the title race with a hard-fought 2-1 win at Getafe on Saturday.