Date: Mon, 3 Feb 2025 11:51:56 GMT From: Ruslan Bukin <br@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: c7e0b94b7de7 - main - riscv vmm: consider hart_mask_base argument in the SBI IPI handler. Message-ID: <202502031151.513BpuSJ040533@gitrepo.freebsd.org>
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The branch main has been updated by br: URL: https://cgit.FreeBSD.org/src/commit/?id=c7e0b94b7de76fec57f4ac25e02de39088ee77d3 commit c7e0b94b7de76fec57f4ac25e02de39088ee77d3 Author: Ruslan Bukin <br@FreeBSD.org> AuthorDate: 2025-02-03 11:48:18 +0000 Commit: Ruslan Bukin <br@FreeBSD.org> CommitDate: 2025-02-03 11:49:48 +0000 riscv vmm: consider hart_mask_base argument in the SBI IPI handler. From the spec: Any SBI function, requiring a hart mask, must take the following two arguments: - unsigned long hart_mask is a scalar bit-vector containing hartids - unsigned long hart_mask_base is the starting hartid from which the bit-vector must be computed. hart_mask_base can be set to -1 to indicate that hart_mask shall be ignored and all available harts must be considered. Differential Revision: https://reviews.freebsd.org/D48717 --- sys/riscv/vmm/vmm_sbi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sys/riscv/vmm/vmm_sbi.c b/sys/riscv/vmm/vmm_sbi.c index 586eb7c4d41c..3ba90e349b3c 100644 --- a/sys/riscv/vmm/vmm_sbi.c +++ b/sys/riscv/vmm/vmm_sbi.c @@ -154,6 +154,7 @@ vmm_sbi_handle_ipi(struct vcpu *vcpu, struct hypctx *hypctx) 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 @@ vmm_sbi_handle_ipi(struct vcpu *vcpu, struct hypctx *hypctx) 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 @@ vmm_sbi_handle_ipi(struct vcpu *vcpu, struct hypctx *hypctx) 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);
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