diff --git a/mantle/platform/qemu.go b/mantle/platform/qemu.go
index 58a594ba604d736dddc0ec70bda9107e8baaee66..691209e7d5761d921a98f887b66155c1273899ba 100644
--- a/mantle/platform/qemu.go
+++ b/mantle/platform/qemu.go
@@ -1036,22 +1036,10 @@ func (builder *QemuBuilder) finalize() {
 		return
 	}
 	if builder.Memory == 0 {
-		// FIXME; Required memory should really be a property of the tests, and
-		// let's try to drop these arch-specific overrides.  ARM was bumped via
-		// commit 09391907c0b25726374004669fa6c2b161e3892f
-		// Commit:     Geoff Levand <geoff@infradead.org>
-		// CommitDate: Mon Aug 21 12:39:34 2017 -0700
-		//
-		// kola: More memory for arm64 qemu guest machines
-		//
-		// arm64 guest machines seem to run out of memory with 1024 MiB of
-		// RAM, so increase to 2048 MiB.
-
-		// Then later, other non-x86_64 seemed to just copy that.
-		memory := 1024
+		memory := 10240
 		switch system.RpmArch() {
 		case "aarch64", "s390x", "ppc64le":
-			memory = 2048
+			memory = 10240
 		}
 		builder.Memory = memory
 	}