@@ -111,6 +111,7 @@ void __debug_restore_host_buffers_nvhe(struct kvm_vcpu *vcpu);
void __fpsimd_save_state(struct user_fpsimd_state *fp_regs);
void __fpsimd_restore_state(struct user_fpsimd_state *fp_regs);
+void __sve_save_state(void *sve_pffr, u32 *fpsr);
void __sve_restore_state(void *sve_pffr, u32 *fpsr);
u64 __guest_enter(struct kvm_vcpu *vcpu);
@@ -25,3 +25,9 @@ SYM_FUNC_START(__sve_restore_state)
sve_load 0, x1, x2, 3
ret
SYM_FUNC_END(__sve_restore_state)
+
+SYM_FUNC_START(__sve_save_state)
+ mov x2, #1
+ sve_save 0, x1, x2, 3
+ ret
+SYM_FUNC_END(__sve_save_state)
Now that the hypervisor is handling the host sve state in protected mode, it needs to be able to save it. This reverts commit e66425fc9ba3 ("KVM: arm64: Remove unused __sve_save_state"). Signed-off-by: Fuad Tabba <tabba@google.com> --- arch/arm64/include/asm/kvm_hyp.h | 1 + arch/arm64/kvm/hyp/fpsimd.S | 6 ++++++ 2 files changed, 7 insertions(+)