Merge pull request #5728 from zhlhahaha:2091

PiperOrigin-RevId: 365613394

pkg/ring0/lib_arm64.go

@@ -62,9 +62,10 @@ func LoadFloatingPoint(*byte)
 // SaveFloatingPoint saves floating point state.
 func SaveFloatingPoint(*byte)
 
+// FPSIMDDisableTrap disables fpsimd.
 func FPSIMDDisableTrap()
 
-// DisableVFP disables fpsimd.
+// FPSIMDEnableTrap enables fpsimd.
 func FPSIMDEnableTrap()
 
 // Init sets function pointers based on architectural features.

pkg/sentry/arch/fpu/fpu_arm64.go

@@ -58,6 +58,8 @@ func (s *State) Fork() State {
 }
 
 // BytePointer returns a pointer to the first byte of the state.
+//
+//go:nosplit
 func (s *State) BytePointer() *byte {
 	return &(*s)[0]
 }

pkg/sentry/platform/kvm/machine.go

@@ -436,7 +436,7 @@ func (m *machine) Get() *vCPU {
 			}
 
 			// The vCPU is not be able to transition to
-			// vCPUGuest|vCPUUser or to vCPUUser because that
+			// vCPUGuest|vCPUWaiter or to vCPUUser because that
 			// transition requires holding the machine mutex, as we
 			// do now. There is no path to register a waiter on
 			// just the vCPUReady state.