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Improve bhyve exit(3) error code.
The bhyve(8) exit status indicates how the VM was terminated: 0 rebooted 1 powered off 2 halted 3 triple fault The problem is when we have wrappers around bhyve that parses the exit error code and gets an exit(1) for an error but interprets it as "powered off". So to mitigate this issue and makes it less error prone for third part applications, I have added a new exit code 4 that is "exited due to an error". For now the bhyve(8) exit status are: 0 rebooted 1 powered off 2 halted 3 triple fault 4 exited due to an error Reviewed by: @jhb MFC after: 2 weeks. Sponsored by: iXsystems Inc. Differential Revision: https://reviews.freebsd.org/D16161
This commit is contained in:
Marcelo Araujo
parent
2c6d9edb2c
commit
989e062bea
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=336188
@ -24,7 +24,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd Jul 05, 2018
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.Dd Jul 11, 2018
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.Dt BHYVE 8
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.Os
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.Sh NAME
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@ -520,6 +520,8 @@ powered off
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halted
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.It 3
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triple fault
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.It 4
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exited due to an error
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.El
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.Sh EXAMPLES
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If not using a boot ROM, the guest operating system must have been loaded with
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@ -397,7 +397,7 @@ fbsdrun_deletecpu(struct vmctx *ctx, int vcpu)
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if (!CPU_ISSET(vcpu, &cpumask)) {
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fprintf(stderr, "Attempting to delete unknown cpu %d\n", vcpu);
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exit(1);
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exit(4);
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}
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CPU_CLR_ATOMIC(vcpu, &cpumask);
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@ -742,7 +742,7 @@ vm_loop(struct vmctx *ctx, int vcpu, uint64_t startrip)
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if (exitcode >= VM_EXITCODE_MAX || handler[exitcode] == NULL) {
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fprintf(stderr, "vm_loop: unexpected exitcode 0x%x\n",
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exitcode);
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exit(1);
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exit(4);
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}
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rc = (*handler[exitcode])(ctx, &vmexit[vcpu], &vcpu);
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@ -753,7 +753,7 @@ vm_loop(struct vmctx *ctx, int vcpu, uint64_t startrip)
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case VMEXIT_ABORT:
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abort();
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default:
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exit(1);
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exit(4);
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}
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}
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fprintf(stderr, "vm_run error %d, errno %d\n", error, errno);
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@ -785,7 +785,7 @@ fbsdrun_set_capabilities(struct vmctx *ctx, int cpu)
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err = vm_get_capability(ctx, cpu, VM_CAP_HALT_EXIT, &tmp);
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if (err < 0) {
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fprintf(stderr, "VM exit on HLT not supported\n");
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exit(1);
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exit(4);
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}
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vm_set_capability(ctx, cpu, VM_CAP_HALT_EXIT, 1);
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if (cpu == BSP)
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@ -800,7 +800,7 @@ fbsdrun_set_capabilities(struct vmctx *ctx, int cpu)
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if (err < 0) {
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fprintf(stderr,
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"SMP mux requested, no pause support\n");
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exit(1);
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exit(4);
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}
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vm_set_capability(ctx, cpu, VM_CAP_PAUSE_EXIT, 1);
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if (cpu == BSP)
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@ -814,7 +814,7 @@ fbsdrun_set_capabilities(struct vmctx *ctx, int cpu)
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if (err) {
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fprintf(stderr, "Unable to set x2apic state (%d)\n", err);
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exit(1);
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exit(4);
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}
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vm_set_capability(ctx, cpu, VM_CAP_ENABLE_INVPCID, 1);
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@ -850,7 +850,7 @@ do_open(const char *vmname)
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}
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} else {
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perror("vm_create");
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exit(1);
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exit(4);
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}
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} else {
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if (!romboot) {
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@ -859,14 +859,14 @@ do_open(const char *vmname)
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* bootrom must be configured to boot it.
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*/
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fprintf(stderr, "virtual machine cannot be booted\n");
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exit(1);
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exit(4);
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}
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}
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ctx = vm_open(vmname);
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if (ctx == NULL) {
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perror("vm_open");
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exit(1);
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exit(4);
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}
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#ifndef WITHOUT_CAPSICUM
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@ -888,7 +888,7 @@ do_open(const char *vmname)
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error = vm_reinit(ctx);
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if (error) {
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perror("vm_reinit");
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exit(1);
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exit(4);
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}
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}
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error = vm_set_topology(ctx, sockets, cores, threads, maxcpus);
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@ -967,7 +967,7 @@ main(int argc, char *argv[])
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break;
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case 's':
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if (pci_parse_slot(optarg) != 0)
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exit(1);
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exit(4);
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else
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break;
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case 'S':
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@ -1033,7 +1033,7 @@ main(int argc, char *argv[])
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if (guest_ncpus > max_vcpus) {
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fprintf(stderr, "%d vCPUs requested but only %d available\n",
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guest_ncpus, max_vcpus);
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exit(1);
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exit(4);
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}
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fbsdrun_set_capabilities(ctx, BSP);
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@ -1042,13 +1042,13 @@ main(int argc, char *argv[])
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err = vm_setup_memory(ctx, memsize, VM_MMAP_ALL);
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if (err) {
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fprintf(stderr, "Unable to setup memory (%d)\n", errno);
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exit(1);
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exit(4);
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}
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error = init_msr();
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if (error) {
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fprintf(stderr, "init_msr error %d", error);
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exit(1);
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exit(4);
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}
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init_mem();
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@ -1063,8 +1063,10 @@ main(int argc, char *argv[])
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/*
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* Exit if a device emulation finds an error in its initilization
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*/
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if (init_pci(ctx) != 0)
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exit(1);
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if (init_pci(ctx) != 0) {
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perror("device emulation initialization error");
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exit(4);
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}
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if (dbg_port != 0)
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init_dbgport(dbg_port);
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@ -1079,7 +1081,7 @@ main(int argc, char *argv[])
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if (vm_set_capability(ctx, BSP, VM_CAP_UNRESTRICTED_GUEST, 1)) {
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fprintf(stderr, "ROM boot failed: unrestricted guest "
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"capability not available\n");
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exit(1);
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exit(4);
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}
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error = vcpu_reset(ctx, BSP);
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assert(error == 0);
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@ -1093,8 +1095,10 @@ main(int argc, char *argv[])
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*/
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if (mptgen) {
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error = mptable_build(ctx, guest_ncpus);
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if (error)
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exit(1);
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if (error) {
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perror("error to build the guest tables");
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exit(4);
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}
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}
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error = smbios_build(ctx);
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@ -1133,5 +1137,5 @@ main(int argc, char *argv[])
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*/
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mevent_dispatch();
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exit(1);
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exit(4);
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}
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@ -139,8 +139,8 @@ init_dbgport(int sport)
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conn_fd = -1;
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if ((listen_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
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perror("socket");
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exit(1);
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perror("cannot create socket");
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exit(4);
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}
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sin.sin_len = sizeof(sin);
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@ -151,18 +151,18 @@ init_dbgport(int sport)
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reuse = 1;
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if (setsockopt(listen_fd, SOL_SOCKET, SO_REUSEADDR, &reuse,
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sizeof(reuse)) < 0) {
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perror("setsockopt");
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exit(1);
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perror("cannot set socket options");
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exit(4);
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}
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if (bind(listen_fd, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
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perror("bind");
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exit(1);
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perror("cannot bind socket");
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exit(4);
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}
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if (listen(listen_fd, 1) < 0) {
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perror("listen");
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exit(1);
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perror("cannot listen socket");
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exit(4);
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}
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#ifndef WITHOUT_CAPSICUM
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@ -375,7 +375,7 @@ fwctl_request(uint32_t value)
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/* Verify size */
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if (value < 12) {
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printf("msg size error");
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exit(1);
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exit(4);
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}
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rinfo.req_size = value;
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rinfo.req_count = 1;
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@ -143,7 +143,7 @@ echoer(void *param)
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mev = mevent_add(fd, EVF_READ, echoer_callback, &sync);
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if (mev == NULL) {
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printf("Could not allocate echoer event\n");
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exit(1);
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exit(4);
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}
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while (!pthread_cond_wait(&sync.e_cond, &sync.e_mt)) {
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@ -200,8 +200,8 @@ acceptor(void *param)
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static int first;
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if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
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perror("socket");
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exit(1);
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perror("cannot create socket");
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exit(4);
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}
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sin.sin_len = sizeof(sin);
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@ -210,13 +210,13 @@ acceptor(void *param)
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sin.sin_port = htons(TEST_PORT);
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if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
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perror("bind");
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exit(1);
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perror("cannot bind socket");
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exit(4);
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}
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if (listen(s, 1) < 0) {
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perror("listen");
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exit(1);
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perror("cannot listen socket");
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exit(4);
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}
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(void) mevent_add(s, EVF_READ, acceptor_callback, NULL);
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@ -2224,7 +2224,7 @@ e82545_open_tap(struct e82545_softc *sc, char *opts)
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sc->esc_tapfd = open(tbuf, O_RDWR);
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if (sc->esc_tapfd == -1) {
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DPRINTF("unable to open tap device %s\n", opts);
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exit(1);
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exit(4);
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}
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/*
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