Merge branch 'for-next/sve-state' into for-next/core

* for-next/sve-state:
  arm64/fp: Use a struct to pass data to fpsimd_bind_state_to_cpu()
  arm64/sve: Leave SVE enabled on syscall if we don't context switch
  arm64/fpsimd: SME no longer requires SVE register state
  arm64/fpsimd: Load FP state based on recorded data type
  arm64/fpsimd: Stop using TIF_SVE to manage register saving in KVM
  arm64/fpsimd: Have KVM explicitly say which FP registers to save
  arm64/fpsimd: Track the saved FPSIMD state type separately to TIF_SVE
  KVM: arm64: Discard any SVE state when entering KVM guests

arch/arm64/include/asm/processor.h

@@ -122,6 +122,12 @@ enum vec_type {
 	ARM64_VEC_MAX,
 };
 
+enum fp_type {
+	FP_STATE_CURRENT,	/* Save based on current task state. */
+	FP_STATE_FPSIMD,
+	FP_STATE_SVE,
+};
+
 struct cpu_context {
 	unsigned long x19;
 	unsigned long x20;
@@ -152,6 +158,7 @@ struct thread_struct {
 		struct user_fpsimd_state fpsimd_state;
 	} uw;
 
+	enum fp_type		fp_type;	/* registers FPSIMD or SVE? */
 	unsigned int		fpsimd_cpu;
 	void			*sve_state;	/* SVE registers, if any */
 	void			*za_state;	/* ZA register, if any */