D54532.id169935.diff
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D54532.id169935.diff
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	diff --git a/sys/arm64/arm64/vfp.c b/sys/arm64/arm64/vfp.c
	--- a/sys/arm64/arm64/vfp.c
	+++ b/sys/arm64/arm64/vfp.c
	@@ -934,12 +934,15 @@

	pcb = td->td_pcb;

	+ if (td == curthread && (pcb->pcb_fpflags & PCB_FP_STARTED) != 0)
	+ vfp_save_state(td, pcb);
	+
	/* If there is no SVE support in HW then we don't support NT_ARM_SVE */
	if (pcb->pcb_sve_len == 0)
	return (false);

	sve_flags = 0;
	- if ((pcb->pcb_fpflags & PCB_FP_SVEVALID) == 0) {
	+ if (pcb->pcb_svesaved == NULL) {
	/* If SVE hasn't been used yet provide the VFP registers */
	buf_size = sizeof(struct fpreg);
	sve_flags \|= SVEREG_FLAG_FP;
	@@ -947,17 +950,12 @@
	/* We have SVE registers */
	buf_size = sve_buf_size(td);
	sve_flags \|= SVEREG_FLAG_SVE;
	- KASSERT(pcb->pcb_svesaved != NULL, ("%s: no saved sve",
	- __func__));
	}

	if (buf != NULL) {
	KASSERT(*sizep == sizeof(struct svereg_header) + buf_size,
	("%s: invalid size", __func__));

	- if (td == curthread && (pcb->pcb_fpflags & PCB_FP_STARTED) != 0)
	- vfp_save_state(td, pcb);
	-
	header = buf;
	memset(header, 0, sizeof(*header));