1d2f938fdSPatrick Mooney /*
2d2f938fdSPatrick Mooney * This file and its contents are supplied under the terms of the
3d2f938fdSPatrick Mooney * Common Development and Distribution License ("CDDL"), version 1.0.
4d2f938fdSPatrick Mooney * You may only use this file in accordance with the terms of version
5d2f938fdSPatrick Mooney * 1.0 of the CDDL.
6d2f938fdSPatrick Mooney *
7d2f938fdSPatrick Mooney * A full copy of the text of the CDDL should have accompanied this
8d2f938fdSPatrick Mooney * source. A copy of the CDDL is also available via the Internet at
9d2f938fdSPatrick Mooney * http://www.illumos.org/license/CDDL.
10d2f938fdSPatrick Mooney */
11d2f938fdSPatrick Mooney
12d2f938fdSPatrick Mooney /*
13d2f938fdSPatrick Mooney * Copyright 2022 Oxide Computer Company
14d2f938fdSPatrick Mooney */
15d2f938fdSPatrick Mooney
16d2f938fdSPatrick Mooney #include <stdio.h>
17d2f938fdSPatrick Mooney #include <unistd.h>
18d2f938fdSPatrick Mooney #include <stdlib.h>
19d2f938fdSPatrick Mooney #include <strings.h>
20d2f938fdSPatrick Mooney #include <libgen.h>
21d2f938fdSPatrick Mooney #include <assert.h>
22*32640292SAndy Fiddaman #include <errno.h>
23d2f938fdSPatrick Mooney
24d2f938fdSPatrick Mooney #include <sys/types.h>
25d2f938fdSPatrick Mooney #include <sys/sysmacros.h>
26d2f938fdSPatrick Mooney #include <sys/debug.h>
27d2f938fdSPatrick Mooney #include <sys/vmm.h>
28d2f938fdSPatrick Mooney #include <sys/vmm_dev.h>
29d2f938fdSPatrick Mooney #include <vmmapi.h>
30d2f938fdSPatrick Mooney
31d2f938fdSPatrick Mooney #include "in_guest.h"
32d2f938fdSPatrick Mooney #include "test_defs.h"
33d2f938fdSPatrick Mooney
34d2f938fdSPatrick Mooney const char *strict_name = "STRICT_APICV";
35d2f938fdSPatrick Mooney
36d2f938fdSPatrick Mooney static bool
strict_apicv(void)37d2f938fdSPatrick Mooney strict_apicv(void)
38d2f938fdSPatrick Mooney {
39d2f938fdSPatrick Mooney const char *strict_val;
40d2f938fdSPatrick Mooney
41d2f938fdSPatrick Mooney if ((strict_val = getenv(strict_name)) != NULL) {
42d2f938fdSPatrick Mooney if (strlen(strict_val) != 0 &&
43d2f938fdSPatrick Mooney strcmp(strict_val, "0") != 0) {
44d2f938fdSPatrick Mooney return (true);
45d2f938fdSPatrick Mooney }
46d2f938fdSPatrick Mooney }
47d2f938fdSPatrick Mooney return (false);
48d2f938fdSPatrick Mooney }
49d2f938fdSPatrick Mooney
50d2f938fdSPatrick Mooney int
main(int argc,char * argv[])51d2f938fdSPatrick Mooney main(int argc, char *argv[])
52d2f938fdSPatrick Mooney {
53d2f938fdSPatrick Mooney const char *test_suite_name = basename(argv[0]);
54d2f938fdSPatrick Mooney struct vmctx *ctx = NULL;
55*32640292SAndy Fiddaman struct vcpu *vcpu;
56d2f938fdSPatrick Mooney int err;
57d2f938fdSPatrick Mooney
58d2f938fdSPatrick Mooney ctx = test_initialize(test_suite_name);
59d2f938fdSPatrick Mooney
60*32640292SAndy Fiddaman if ((vcpu = vm_vcpu_open(ctx, 0)) == NULL) {
61*32640292SAndy Fiddaman test_fail_errno(errno, "Could not open vcpu0");
62*32640292SAndy Fiddaman }
63*32640292SAndy Fiddaman
64*32640292SAndy Fiddaman err = test_setup_vcpu(vcpu, MEM_LOC_PAYLOAD, MEM_LOC_STACK);
65d2f938fdSPatrick Mooney if (err != 0) {
66d2f938fdSPatrick Mooney test_fail_errno(err, "Could not initialize vcpu0");
67d2f938fdSPatrick Mooney }
68d2f938fdSPatrick Mooney
69d2f938fdSPatrick Mooney /*
70d2f938fdSPatrick Mooney * Although x2APIC should be off by default, make doubly sure by
71d2f938fdSPatrick Mooney * explicitly setting it so.
72d2f938fdSPatrick Mooney */
73*32640292SAndy Fiddaman err = vm_set_x2apic_state(vcpu, X2APIC_DISABLED);
74d2f938fdSPatrick Mooney if (err != 0) {
75d2f938fdSPatrick Mooney test_fail_errno(err, "Could not disable x2apic on vcpu0");
76d2f938fdSPatrick Mooney }
77d2f938fdSPatrick Mooney
78d2f938fdSPatrick Mooney struct vm_entry ventry = { 0 };
79d2f938fdSPatrick Mooney struct vm_exit vexit = { 0 };
80d2f938fdSPatrick Mooney
81d2f938fdSPatrick Mooney do {
82d2f938fdSPatrick Mooney const enum vm_exit_kind kind =
83*32640292SAndy Fiddaman test_run_vcpu(vcpu, &ventry, &vexit);
84d2f938fdSPatrick Mooney switch (kind) {
85d2f938fdSPatrick Mooney case VEK_REENTR:
86d2f938fdSPatrick Mooney break;
87d2f938fdSPatrick Mooney case VEK_TEST_PASS:
88d2f938fdSPatrick Mooney test_pass();
89d2f938fdSPatrick Mooney break;
90d2f938fdSPatrick Mooney case VEK_TEST_FAIL:
91d2f938fdSPatrick Mooney test_fail_msg("payload signaled failure");
92d2f938fdSPatrick Mooney break;
93d2f938fdSPatrick Mooney case VEK_UNHANDLED:
94d2f938fdSPatrick Mooney /*
95d2f938fdSPatrick Mooney * Not all APICv-accelerated accesses are properly
96d2f938fdSPatrick Mooney * handled by the in-kernel emulation today.
97d2f938fdSPatrick Mooney * (See: illumos #13847).
98d2f938fdSPatrick Mooney *
99d2f938fdSPatrick Mooney * To allow this test to be useful on systems without
100d2f938fdSPatrick Mooney * APICv, we suppress such failures unless explicitly
101d2f938fdSPatrick Mooney * strict handling is requested.
102d2f938fdSPatrick Mooney */
103d2f938fdSPatrick Mooney if (vexit.exitcode == VM_EXITCODE_VMX &&
104d2f938fdSPatrick Mooney (vexit.u.vmx.exit_reason == 44 ||
105d2f938fdSPatrick Mooney vexit.u.vmx.exit_reason == 56)) {
106d2f938fdSPatrick Mooney if (strict_apicv()) {
107d2f938fdSPatrick Mooney test_fail_vmexit(&vexit);
108d2f938fdSPatrick Mooney }
109d2f938fdSPatrick Mooney (void) fprintf(stderr,
110d2f938fdSPatrick Mooney "Ignoring APICv access issue\n"
111d2f938fdSPatrick Mooney "If strictness is desired, "
112d2f938fdSPatrick Mooney "run with %s=1 in env\n", strict_name);
113d2f938fdSPatrick Mooney test_pass();
114d2f938fdSPatrick Mooney }
115d2f938fdSPatrick Mooney test_fail_vmexit(&vexit);
116d2f938fdSPatrick Mooney break;
117d2f938fdSPatrick Mooney default:
118d2f938fdSPatrick Mooney test_fail_vmexit(&vexit);
119d2f938fdSPatrick Mooney break;
120d2f938fdSPatrick Mooney }
121d2f938fdSPatrick Mooney } while (true);
122d2f938fdSPatrick Mooney }
123