Airbnb CEO Brian Chesky. Photograph by Kevin Moloney/Fortune Global Forum, under Creative Commons license.

Amid a coronavirus outbreak that has undoubtedly affected its business, Airbnb has announced it’s raising $1 billion in a combination of debt and equity financing. Silver Lake and Sixth Street Partners, two investment firms with tens of billions in assets, are providing the new funding. Such funding is apparently being raised to help Airbnb ply through a business slowdown that’s consequent from travel restrictions enacted worldwide to help contain the coronavirus outbreak. The valuation coming with the new funding isn’t stated by Airbnb.

Going by known public information, Silver Lake and Sixth Street Partners are new investors in Airbnb. Silver Lake is a well-known tech investor that’s collectively invested billions in tech companies including Credit Karma, FlixMobility, GoodRx, Fanatics, SoFi, SenseTime, Unity, Alphabet’s Waymo, WP Engine, and Ant Financial. With more than $43 billion in assets, Silver Lake’s deals typically amount to hundreds of millions in single portfolio investments. Sixth Street is also a big investment firm with more than $34 billion in assets. It, however, isn’t a tech-focused investor and has backed many companies from a diverse range of industries.

Before this funding, Airbnb had about $4 billion in cash on hand, according to a source. A $1 billion addition to that amount likely gives Airbnb an upper hand in navigating a severe business slowdown that has resulted from the coronavirus outbreak. The travel industry at large has been hit hard by the outbreak, with layoffs at travel startups sort of the norm as of late. Travel startups, including some Airbnb has backed, have collectively laid off or furloughed hundreds of persons. Airlines and hotel chains have laid off or furloughed thousands. Current times are not good at all for companies whose business heavily depends on travel. It’s not known if Airbnb will resort to layoffs in response to a business slowdown, but in a case where that happens, it wouldn’t be at all surprising.