Date: Thu, 25 Apr 2019 22:51:37 +0000 (UTC) From: "Rodney W. Grimes" <rgrimes@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r346714 - in head/sys/amd64: include vmm vmm/amd vmm/intel vmm/io Message-ID: <201904252251.x3PMpbUh028345@repo.freebsd.org>
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Author: rgrimes Date: Thu Apr 25 22:51:36 2019 New Revision: 346714 URL: https://svnweb.freebsd.org/changeset/base/346714 Log: Add accessor function for vm->maxcpus Replace most VM_MAXCPU constant useses with an accessor function to vm->maxcpus which for now is initialized and kept at the value of VM_MAXCPUS. This is a rework of Fabian Freyer (fabian.freyer_physik.tu-berlin.de) work from D10070 to adjust it for the cpu topology changes that occured in r332298 Submitted by: Fabian Freyer (fabian.freyer_physik.tu-berlin.de) Reviewed by: Patrick Mooney <patrick.mooney@joyent.com> Approved by: bde (mentor), jhb (maintainer) MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D18755 Modified: head/sys/amd64/include/vmm.h head/sys/amd64/vmm/amd/svm.c head/sys/amd64/vmm/intel/vmx.c head/sys/amd64/vmm/io/vlapic.c head/sys/amd64/vmm/vmm.c head/sys/amd64/vmm/vmm_dev.c head/sys/amd64/vmm/vmm_lapic.c head/sys/amd64/vmm/vmm_stat.c Modified: head/sys/amd64/include/vmm.h ============================================================================== --- head/sys/amd64/include/vmm.h Thu Apr 25 22:27:56 2019 (r346713) +++ head/sys/amd64/include/vmm.h Thu Apr 25 22:51:36 2019 (r346714) @@ -186,6 +186,7 @@ int vm_create(const char *name, struct vm **retvm); void vm_destroy(struct vm *vm); int vm_reinit(struct vm *vm); const char *vm_name(struct vm *vm); +uint16_t vm_get_maxcpus(struct vm *vm); void vm_get_topology(struct vm *vm, uint16_t *sockets, uint16_t *cores, uint16_t *threads, uint16_t *maxcpus); int vm_set_topology(struct vm *vm, uint16_t sockets, uint16_t cores, Modified: head/sys/amd64/vmm/amd/svm.c ============================================================================== --- head/sys/amd64/vmm/amd/svm.c Thu Apr 25 22:27:56 2019 (r346713) +++ head/sys/amd64/vmm/amd/svm.c Thu Apr 25 22:51:36 2019 (r346714) @@ -524,6 +524,7 @@ svm_vminit(struct vm *vm, pmap_t pmap) struct svm_vcpu *vcpu; vm_paddr_t msrpm_pa, iopm_pa, pml4_pa; int i; + uint16_t maxcpus; svm_sc = malloc(sizeof (*svm_sc), M_SVM, M_WAITOK | M_ZERO); if (((uintptr_t)svm_sc & PAGE_MASK) != 0) @@ -577,7 +578,8 @@ svm_vminit(struct vm *vm, pmap_t pmap) iopm_pa = vtophys(svm_sc->iopm_bitmap); msrpm_pa = vtophys(svm_sc->msr_bitmap); pml4_pa = svm_sc->nptp; - for (i = 0; i < VM_MAXCPU; i++) { + maxcpus = vm_get_maxcpus(svm_sc->vm); + for (i = 0; i < maxcpus; i++) { vcpu = svm_get_vcpu(svm_sc, i); vcpu->nextrip = ~0; vcpu->lastcpu = NOCPU; Modified: head/sys/amd64/vmm/intel/vmx.c ============================================================================== --- head/sys/amd64/vmm/intel/vmx.c Thu Apr 25 22:27:56 2019 (r346713) +++ head/sys/amd64/vmm/intel/vmx.c Thu Apr 25 22:51:36 2019 (r346714) @@ -943,6 +943,7 @@ vmx_vminit(struct vm *vm, pmap_t pmap) struct vmx *vmx; struct vmcs *vmcs; uint32_t exc_bitmap; + uint16_t maxcpus; vmx = malloc(sizeof(struct vmx), M_VMX, M_WAITOK | M_ZERO); if ((uintptr_t)vmx & PAGE_MASK) { @@ -1004,7 +1005,8 @@ vmx_vminit(struct vm *vm, pmap_t pmap) KASSERT(error == 0, ("vm_map_mmio(apicbase) error %d", error)); } - for (i = 0; i < VM_MAXCPU; i++) { + maxcpus = vm_get_maxcpus(vm); + for (i = 0; i < maxcpus; i++) { vmcs = &vmx->vmcs[i]; vmcs->identifier = vmx_revision(); error = vmclear(vmcs); @@ -3002,11 +3004,13 @@ vmx_vmcleanup(void *arg) { int i; struct vmx *vmx = arg; + uint16_t maxcpus; if (apic_access_virtualization(vmx, 0)) vm_unmap_mmio(vmx->vm, DEFAULT_APIC_BASE, PAGE_SIZE); - for (i = 0; i < VM_MAXCPU; i++) + maxcpus = vm_get_maxcpus(vmx->vm); + for (i = 0; i < maxcpus; i++) vpid_free(vmx->state[i].vpid); free(vmx, M_VMX); Modified: head/sys/amd64/vmm/io/vlapic.c ============================================================================== --- head/sys/amd64/vmm/io/vlapic.c Thu Apr 25 22:27:56 2019 (r346713) +++ head/sys/amd64/vmm/io/vlapic.c Thu Apr 25 22:51:36 2019 (r346714) @@ -838,7 +838,7 @@ vlapic_calcdest(struct vm *vm, cpuset_t *dmask, uint32 */ CPU_ZERO(dmask); vcpuid = vm_apicid2vcpuid(vm, dest); - if (vcpuid < VM_MAXCPU) + if (vcpuid < vm_get_maxcpus(vm)) CPU_SET(vcpuid, dmask); } else { /* @@ -965,6 +965,7 @@ vlapic_icrlo_write_handler(struct vlapic *vlapic, bool struct vlapic *vlapic2; struct vm_exit *vmexit; struct LAPIC *lapic; + uint16_t maxcpus; lapic = vlapic->apic_page; lapic->icr_lo &= ~APIC_DELSTAT_PEND; @@ -1026,11 +1027,12 @@ vlapic_icrlo_write_handler(struct vlapic *vlapic, bool return (0); /* handled completely in the kernel */ } + maxcpus = vm_get_maxcpus(vlapic->vm); if (mode == APIC_DELMODE_INIT) { if ((icrval & APIC_LEVEL_MASK) == APIC_LEVEL_DEASSERT) return (0); - if (vlapic->vcpuid == 0 && dest != 0 && dest < VM_MAXCPU) { + if (vlapic->vcpuid == 0 && dest != 0 && dest < maxcpus) { vlapic2 = vm_lapic(vlapic->vm, dest); /* move from INIT to waiting-for-SIPI state */ @@ -1043,7 +1045,7 @@ vlapic_icrlo_write_handler(struct vlapic *vlapic, bool } if (mode == APIC_DELMODE_STARTUP) { - if (vlapic->vcpuid == 0 && dest != 0 && dest < VM_MAXCPU) { + if (vlapic->vcpuid == 0 && dest != 0 && dest < maxcpus) { vlapic2 = vm_lapic(vlapic->vm, dest); /* @@ -1447,7 +1449,8 @@ void vlapic_init(struct vlapic *vlapic) { KASSERT(vlapic->vm != NULL, ("vlapic_init: vm is not initialized")); - KASSERT(vlapic->vcpuid >= 0 && vlapic->vcpuid < VM_MAXCPU, + KASSERT(vlapic->vcpuid >= 0 && + vlapic->vcpuid < vm_get_maxcpus(vlapic->vm), ("vlapic_init: vcpuid is not initialized")); KASSERT(vlapic->apic_page != NULL, ("vlapic_init: apic_page is not " "initialized")); Modified: head/sys/amd64/vmm/vmm.c ============================================================================== --- head/sys/amd64/vmm/vmm.c Thu Apr 25 22:27:56 2019 (r346713) +++ head/sys/amd64/vmm/vmm.c Thu Apr 25 22:51:36 2019 (r346714) @@ -276,7 +276,7 @@ vcpu_init(struct vm *vm, int vcpu_id, bool create) { struct vcpu *vcpu; - KASSERT(vcpu_id >= 0 && vcpu_id < VM_MAXCPU, + KASSERT(vcpu_id >= 0 && vcpu_id < vm->maxcpus, ("vcpu_init: invalid vcpu %d", vcpu_id)); vcpu = &vm->vcpu[vcpu_id]; @@ -315,7 +315,7 @@ vm_exitinfo(struct vm *vm, int cpuid) { struct vcpu *vcpu; - if (cpuid < 0 || cpuid >= VM_MAXCPU) + if (cpuid < 0 || cpuid >= vm->maxcpus) panic("vm_exitinfo: invalid cpuid %d", cpuid); vcpu = &vm->vcpu[cpuid]; @@ -428,7 +428,7 @@ vm_init(struct vm *vm, bool create) vm->suspend = 0; CPU_ZERO(&vm->suspended_cpus); - for (i = 0; i < VM_MAXCPU; i++) + for (i = 0; i < vm->maxcpus; i++) vcpu_init(vm, i, create); } @@ -466,7 +466,7 @@ vm_create(const char *name, struct vm **retvm) vm->sockets = 1; vm->cores = cores_per_package; /* XXX backwards compatibility */ vm->threads = threads_per_core; /* XXX backwards compatibility */ - vm->maxcpus = 0; /* XXX not implemented */ + vm->maxcpus = VM_MAXCPU; /* XXX temp to keep code working */ vm_init(vm, true); @@ -484,19 +484,25 @@ vm_get_topology(struct vm *vm, uint16_t *sockets, uint *maxcpus = vm->maxcpus; } +uint16_t +vm_get_maxcpus(struct vm *vm) +{ + return (vm->maxcpus); +} + int vm_set_topology(struct vm *vm, uint16_t sockets, uint16_t cores, uint16_t threads, uint16_t maxcpus) { if (maxcpus != 0) return (EINVAL); /* XXX remove when supported */ - if ((sockets * cores * threads) > VM_MAXCPU) + if ((sockets * cores * threads) > vm->maxcpus) return (EINVAL); /* XXX need to check sockets * cores * threads == vCPU, how? */ vm->sockets = sockets; vm->cores = cores; vm->threads = threads; - vm->maxcpus = maxcpus; + vm->maxcpus = VM_MAXCPU; /* XXX temp to keep code working */ return(0); } @@ -521,7 +527,7 @@ vm_cleanup(struct vm *vm, bool destroy) vatpic_cleanup(vm->vatpic); vioapic_cleanup(vm->vioapic); - for (i = 0; i < VM_MAXCPU; i++) + for (i = 0; i < vm->maxcpus; i++) vcpu_cleanup(vm, i, destroy); VMCLEANUP(vm->cookie); @@ -956,9 +962,9 @@ vm_gpa_hold(struct vm *vm, int vcpuid, vm_paddr_t gpa, * guaranteed if at least one vcpu is in the VCPU_FROZEN state. */ int state; - KASSERT(vcpuid >= -1 && vcpuid < VM_MAXCPU, ("%s: invalid vcpuid %d", + KASSERT(vcpuid >= -1 && vcpuid < vm->maxcpus, ("%s: invalid vcpuid %d", __func__, vcpuid)); - for (i = 0; i < VM_MAXCPU; i++) { + for (i = 0; i < vm->maxcpus; i++) { if (vcpuid != -1 && vcpuid != i) continue; state = vcpu_get_state(vm, i, NULL); @@ -1004,7 +1010,7 @@ int vm_get_register(struct vm *vm, int vcpu, int reg, uint64_t *retval) { - if (vcpu < 0 || vcpu >= VM_MAXCPU) + if (vcpu < 0 || vcpu >= vm->maxcpus) return (EINVAL); if (reg >= VM_REG_LAST) @@ -1019,7 +1025,7 @@ vm_set_register(struct vm *vm, int vcpuid, int reg, ui struct vcpu *vcpu; int error; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) return (EINVAL); if (reg >= VM_REG_LAST) @@ -1073,7 +1079,7 @@ vm_get_seg_desc(struct vm *vm, int vcpu, int reg, struct seg_desc *desc) { - if (vcpu < 0 || vcpu >= VM_MAXCPU) + if (vcpu < 0 || vcpu >= vm->maxcpus) return (EINVAL); if (!is_segment_register(reg) && !is_descriptor_table(reg)) @@ -1086,7 +1092,7 @@ int vm_set_seg_desc(struct vm *vm, int vcpu, int reg, struct seg_desc *desc) { - if (vcpu < 0 || vcpu >= VM_MAXCPU) + if (vcpu < 0 || vcpu >= vm->maxcpus) return (EINVAL); if (!is_segment_register(reg) && !is_descriptor_table(reg)) @@ -1258,7 +1264,7 @@ static void vm_handle_rendezvous(struct vm *vm, int vcpuid) { - KASSERT(vcpuid == -1 || (vcpuid >= 0 && vcpuid < VM_MAXCPU), + KASSERT(vcpuid == -1 || (vcpuid >= 0 && vcpuid < vm->maxcpus), ("vm_handle_rendezvous: invalid vcpuid %d", vcpuid)); mtx_lock(&vm->rendezvous_mtx); @@ -1537,7 +1543,7 @@ vm_handle_suspend(struct vm *vm, int vcpuid, bool *ret /* * Wakeup the other sleeping vcpus and return to userspace. */ - for (i = 0; i < VM_MAXCPU; i++) { + for (i = 0; i < vm->maxcpus; i++) { if (CPU_ISSET(i, &vm->suspended_cpus)) { vcpu_notify_event(vm, i, false); } @@ -1579,7 +1585,7 @@ vm_suspend(struct vm *vm, enum vm_suspend_how how) /* * Notify all active vcpus that they are now suspended. */ - for (i = 0; i < VM_MAXCPU; i++) { + for (i = 0; i < vm->maxcpus; i++) { if (CPU_ISSET(i, &vm->active_cpus)) vcpu_notify_event(vm, i, false); } @@ -1665,7 +1671,7 @@ vm_run(struct vm *vm, struct vm_run *vmrun) vcpuid = vmrun->cpuid; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) return (EINVAL); if (!CPU_ISSET(vcpuid, &vm->active_cpus)) @@ -1766,7 +1772,7 @@ vm_restart_instruction(void *arg, int vcpuid) int error; vm = arg; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) return (EINVAL); vcpu = &vm->vcpu[vcpuid]; @@ -1805,7 +1811,7 @@ vm_exit_intinfo(struct vm *vm, int vcpuid, uint64_t in struct vcpu *vcpu; int type, vector; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) return (EINVAL); vcpu = &vm->vcpu[vcpuid]; @@ -1946,7 +1952,8 @@ vm_entry_intinfo(struct vm *vm, int vcpuid, uint64_t * uint64_t info1, info2; int valid; - KASSERT(vcpuid >= 0 && vcpuid < VM_MAXCPU, ("invalid vcpu %d", vcpuid)); + KASSERT(vcpuid >= 0 && + vcpuid < vm->maxcpus, ("invalid vcpu %d", vcpuid)); vcpu = &vm->vcpu[vcpuid]; @@ -1986,7 +1993,7 @@ vm_get_intinfo(struct vm *vm, int vcpuid, uint64_t *in { struct vcpu *vcpu; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) return (EINVAL); vcpu = &vm->vcpu[vcpuid]; @@ -2003,7 +2010,7 @@ vm_inject_exception(struct vm *vm, int vcpuid, int vec uint64_t regval; int error; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) return (EINVAL); if (vector < 0 || vector >= 32) @@ -2094,7 +2101,7 @@ vm_inject_nmi(struct vm *vm, int vcpuid) { struct vcpu *vcpu; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) return (EINVAL); vcpu = &vm->vcpu[vcpuid]; @@ -2109,7 +2116,7 @@ vm_nmi_pending(struct vm *vm, int vcpuid) { struct vcpu *vcpu; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) panic("vm_nmi_pending: invalid vcpuid %d", vcpuid); vcpu = &vm->vcpu[vcpuid]; @@ -2122,7 +2129,7 @@ vm_nmi_clear(struct vm *vm, int vcpuid) { struct vcpu *vcpu; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) panic("vm_nmi_pending: invalid vcpuid %d", vcpuid); vcpu = &vm->vcpu[vcpuid]; @@ -2141,7 +2148,7 @@ vm_inject_extint(struct vm *vm, int vcpuid) { struct vcpu *vcpu; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) return (EINVAL); vcpu = &vm->vcpu[vcpuid]; @@ -2156,7 +2163,7 @@ vm_extint_pending(struct vm *vm, int vcpuid) { struct vcpu *vcpu; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) panic("vm_extint_pending: invalid vcpuid %d", vcpuid); vcpu = &vm->vcpu[vcpuid]; @@ -2169,7 +2176,7 @@ vm_extint_clear(struct vm *vm, int vcpuid) { struct vcpu *vcpu; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) panic("vm_extint_pending: invalid vcpuid %d", vcpuid); vcpu = &vm->vcpu[vcpuid]; @@ -2184,7 +2191,7 @@ vm_extint_clear(struct vm *vm, int vcpuid) int vm_get_capability(struct vm *vm, int vcpu, int type, int *retval) { - if (vcpu < 0 || vcpu >= VM_MAXCPU) + if (vcpu < 0 || vcpu >= vm->maxcpus) return (EINVAL); if (type < 0 || type >= VM_CAP_MAX) @@ -2196,7 +2203,7 @@ vm_get_capability(struct vm *vm, int vcpu, int type, i int vm_set_capability(struct vm *vm, int vcpu, int type, int val) { - if (vcpu < 0 || vcpu >= VM_MAXCPU) + if (vcpu < 0 || vcpu >= vm->maxcpus) return (EINVAL); if (type < 0 || type >= VM_CAP_MAX) @@ -2281,7 +2288,7 @@ vcpu_set_state(struct vm *vm, int vcpuid, enum vcpu_st int error; struct vcpu *vcpu; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) panic("vm_set_run_state: invalid vcpuid %d", vcpuid); vcpu = &vm->vcpu[vcpuid]; @@ -2299,7 +2306,7 @@ vcpu_get_state(struct vm *vm, int vcpuid, int *hostcpu struct vcpu *vcpu; enum vcpu_state state; - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) panic("vm_get_run_state: invalid vcpuid %d", vcpuid); vcpu = &vm->vcpu[vcpuid]; @@ -2317,7 +2324,7 @@ int vm_activate_cpu(struct vm *vm, int vcpuid) { - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) return (EINVAL); if (CPU_ISSET(vcpuid, &vm->active_cpus)) @@ -2333,12 +2340,12 @@ vm_suspend_cpu(struct vm *vm, int vcpuid) { int i; - if (vcpuid < -1 || vcpuid >= VM_MAXCPU) + if (vcpuid < -1 || vcpuid >= vm->maxcpus) return (EINVAL); if (vcpuid == -1) { vm->debug_cpus = vm->active_cpus; - for (i = 0; i < VM_MAXCPU; i++) { + for (i = 0; i < vm->maxcpus; i++) { if (CPU_ISSET(i, &vm->active_cpus)) vcpu_notify_event(vm, i, false); } @@ -2356,7 +2363,7 @@ int vm_resume_cpu(struct vm *vm, int vcpuid) { - if (vcpuid < -1 || vcpuid >= VM_MAXCPU) + if (vcpuid < -1 || vcpuid >= vm->maxcpus) return (EINVAL); if (vcpuid == -1) { @@ -2408,7 +2415,7 @@ vcpu_stats(struct vm *vm, int vcpuid) int vm_get_x2apic_state(struct vm *vm, int vcpuid, enum x2apic_state *state) { - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) return (EINVAL); *state = vm->vcpu[vcpuid].x2apic_state; @@ -2419,7 +2426,7 @@ vm_get_x2apic_state(struct vm *vm, int vcpuid, enum x2 int vm_set_x2apic_state(struct vm *vm, int vcpuid, enum x2apic_state state) { - if (vcpuid < 0 || vcpuid >= VM_MAXCPU) + if (vcpuid < 0 || vcpuid >= vm->maxcpus) return (EINVAL); if (state >= X2APIC_STATE_LAST) @@ -2506,7 +2513,7 @@ vm_smp_rendezvous(struct vm *vm, int vcpuid, cpuset_t * Enforce that this function is called without any locks */ WITNESS_WARN(WARN_PANIC, NULL, "vm_smp_rendezvous"); - KASSERT(vcpuid == -1 || (vcpuid >= 0 && vcpuid < VM_MAXCPU), + KASSERT(vcpuid == -1 || (vcpuid >= 0 && vcpuid < vm->maxcpus), ("vm_smp_rendezvous: invalid vcpuid %d", vcpuid)); restart: @@ -2536,7 +2543,7 @@ restart: * Wake up any sleeping vcpus and trigger a VM-exit in any running * vcpus so they handle the rendezvous as soon as possible. */ - for (i = 0; i < VM_MAXCPU; i++) { + for (i = 0; i < vm->maxcpus; i++) { if (CPU_ISSET(i, &dest)) vcpu_notify_event(vm, i, false); } Modified: head/sys/amd64/vmm/vmm_dev.c ============================================================================== --- head/sys/amd64/vmm/vmm_dev.c Thu Apr 25 22:27:56 2019 (r346713) +++ head/sys/amd64/vmm/vmm_dev.c Thu Apr 25 22:51:36 2019 (r346714) @@ -111,7 +111,7 @@ vcpu_lock_one(struct vmmdev_softc *sc, int vcpu) { int error; - if (vcpu < 0 || vcpu >= VM_MAXCPU) + if (vcpu < 0 || vcpu >= vm_get_maxcpus(sc->vm)) return (EINVAL); error = vcpu_set_state(sc->vm, vcpu, VCPU_FROZEN, true); @@ -136,8 +136,10 @@ static int vcpu_lock_all(struct vmmdev_softc *sc) { int error, vcpu; + uint16_t maxcpus; - for (vcpu = 0; vcpu < VM_MAXCPU; vcpu++) { + maxcpus = vm_get_maxcpus(sc->vm); + for (vcpu = 0; vcpu < maxcpus; vcpu++) { error = vcpu_lock_one(sc, vcpu); if (error) break; @@ -155,8 +157,10 @@ static void vcpu_unlock_all(struct vmmdev_softc *sc) { int vcpu; + uint16_t maxcpus; - for (vcpu = 0; vcpu < VM_MAXCPU; vcpu++) + maxcpus = vm_get_maxcpus(sc->vm); + for (vcpu = 0; vcpu < maxcpus; vcpu++) vcpu_unlock_one(sc, vcpu); } @@ -191,6 +195,7 @@ vmmdev_rw(struct cdev *cdev, struct uio *uio, int flag vm_paddr_t gpa, maxaddr; void *hpa, *cookie; struct vmmdev_softc *sc; + uint16_t lastcpu; error = vmm_priv_check(curthread->td_ucred); if (error) @@ -203,7 +208,8 @@ vmmdev_rw(struct cdev *cdev, struct uio *uio, int flag /* * Get a read lock on the guest memory map by freezing any vcpu. */ - error = vcpu_lock_one(sc, VM_MAXCPU - 1); + lastcpu = vm_get_maxcpus(sc->vm) - 1; + error = vcpu_lock_one(sc, lastcpu); if (error) return (error); @@ -222,7 +228,8 @@ vmmdev_rw(struct cdev *cdev, struct uio *uio, int flag * Since this device does not support lseek(2), dd(1) will * read(2) blocks of data to simulate the lseek(2). */ - hpa = vm_gpa_hold(sc->vm, VM_MAXCPU - 1, gpa, c, prot, &cookie); + hpa = vm_gpa_hold(sc->vm, lastcpu, gpa, c, + prot, &cookie); if (hpa == NULL) { if (uio->uio_rw == UIO_READ && gpa < maxaddr) error = uiomove(__DECONST(void *, zero_region), @@ -234,7 +241,7 @@ vmmdev_rw(struct cdev *cdev, struct uio *uio, int flag vm_gpa_release(cookie); } } - vcpu_unlock_one(sc, VM_MAXCPU - 1); + vcpu_unlock_one(sc, lastcpu); return (error); } @@ -437,7 +444,7 @@ vmmdev_ioctl(struct cdev *cdev, u_long cmd, caddr_t da * Lock a vcpu to make sure that the memory map cannot be * modified while it is being inspected. */ - vcpu = VM_MAXCPU - 1; + vcpu = vm_get_maxcpus(sc->vm) - 1; error = vcpu_lock_one(sc, vcpu); if (error) goto done; @@ -797,6 +804,7 @@ vmmdev_mmap_single(struct cdev *cdev, vm_ooffset_t *of size_t len; vm_ooffset_t segoff, first, last; int error, found, segid; + uint16_t lastcpu; bool sysmem; error = vmm_priv_check(curthread->td_ucred); @@ -817,7 +825,8 @@ vmmdev_mmap_single(struct cdev *cdev, vm_ooffset_t *of /* * Get a read lock on the guest memory map by freezing any vcpu. */ - error = vcpu_lock_one(sc, VM_MAXCPU - 1); + lastcpu = vm_get_maxcpus(sc->vm) - 1; + error = vcpu_lock_one(sc, lastcpu); if (error) return (error); @@ -846,7 +855,7 @@ vmmdev_mmap_single(struct cdev *cdev, vm_ooffset_t *of error = EINVAL; } } - vcpu_unlock_one(sc, VM_MAXCPU - 1); + vcpu_unlock_one(sc, lastcpu); return (error); } @@ -1045,6 +1054,7 @@ devmem_mmap_single(struct cdev *cdev, vm_ooffset_t *of vm_ooffset_t first, last; size_t seglen; int error; + uint16_t lastcpu; bool sysmem; dsc = cdev->si_drv1; @@ -1058,7 +1068,8 @@ devmem_mmap_single(struct cdev *cdev, vm_ooffset_t *of if ((nprot & PROT_EXEC) || first < 0 || first >= last) return (EINVAL); - error = vcpu_lock_one(dsc->sc, VM_MAXCPU - 1); + lastcpu = vm_get_maxcpus(dsc->sc->vm) - 1; + error = vcpu_lock_one(dsc->sc, lastcpu); if (error) return (error); @@ -1066,7 +1077,7 @@ devmem_mmap_single(struct cdev *cdev, vm_ooffset_t *of KASSERT(error == 0 && !sysmem && *objp != NULL, ("%s: invalid devmem segment %d", __func__, dsc->segid)); - vcpu_unlock_one(dsc->sc, VM_MAXCPU - 1); + vcpu_unlock_one(dsc->sc, lastcpu); if (seglen >= last) { vm_object_reference(*objp); Modified: head/sys/amd64/vmm/vmm_lapic.c ============================================================================== --- head/sys/amd64/vmm/vmm_lapic.c Thu Apr 25 22:27:56 2019 (r346713) +++ head/sys/amd64/vmm/vmm_lapic.c Thu Apr 25 22:51:36 2019 (r346714) @@ -56,7 +56,7 @@ lapic_set_intr(struct vm *vm, int cpu, int vector, boo { struct vlapic *vlapic; - if (cpu < 0 || cpu >= VM_MAXCPU) + if (cpu < 0 || cpu >= vm_get_maxcpus(vm)) return (EINVAL); /* @@ -79,7 +79,7 @@ lapic_set_local_intr(struct vm *vm, int cpu, int vecto cpuset_t dmask; int error; - if (cpu < -1 || cpu >= VM_MAXCPU) + if (cpu < -1 || cpu >= vm_get_maxcpus(vm)) return (EINVAL); if (cpu == -1) Modified: head/sys/amd64/vmm/vmm_stat.c ============================================================================== --- head/sys/amd64/vmm/vmm_stat.c Thu Apr 25 22:27:56 2019 (r346713) +++ head/sys/amd64/vmm/vmm_stat.c Thu Apr 25 22:51:36 2019 (r346714) @@ -88,7 +88,7 @@ vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *stats; int i; - if (vcpu < 0 || vcpu >= VM_MAXCPU) + if (vcpu < 0 || vcpu >= vm_get_maxcpus(vm)) return (EINVAL); /* Let stats functions update their counters */
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