D48717.diff
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	diff --git a/sys/riscv/vmm/vmm_sbi.c b/sys/riscv/vmm/vmm_sbi.c
	--- a/sys/riscv/vmm/vmm_sbi.c
	+++ b/sys/riscv/vmm/vmm_sbi.c
	@@ -154,6 +154,7 @@
	cpuset_t active_cpus;
	struct hyp *hyp;
	uint64_t hart_mask;
	+ uint64_t hart_mask_base;
	uint64_t func_id;
	int hart_id;
	int bit;
	@@ -161,6 +162,7 @@

	func_id = hypctx->guest_regs.hyp_a[6];
	hart_mask = hypctx->guest_regs.hyp_a[0];
	+ hart_mask_base = hypctx->guest_regs.hyp_a[1];

	dprintf("%s: hart_mask %lx\n", __func__, hart_mask);

	@@ -173,6 +175,8 @@
	while ((bit = ffs(hart_mask))) {
	hart_id = (bit - 1);
	hart_mask &= ~(1u << hart_id);
	+ if (hart_mask_base != -1)
	+ hart_id += hart_mask_base;
	if (CPU_ISSET(hart_id, &active_cpus)) {
	/* TODO. */
	target_vcpu = vm_vcpu(hyp->vm, hart_id);