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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2022 Oxide Computer Company
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <strings.h>
#include <libgen.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/sysmacros.h>
#include <sys/debug.h>
#include <sys/vmm.h>
#include <sys/vmm_dev.h>
#include <vmmapi.h>
#include "in_guest.h"
#include "test_defs.h"
const char *strict_name = "STRICT_APICV";
static bool
strict_apicv(void)
{
const char *strict_val;
if ((strict_val = getenv(strict_name)) != NULL) {
if (strlen(strict_val) != 0 &&
strcmp(strict_val, "0") != 0) {
return (true);
}
}
return (false);
}
int
main(int argc, char *argv[])
{
const char *test_suite_name = basename(argv[0]);
struct vmctx *ctx = NULL;
int err;
ctx = test_initialize(test_suite_name);
err = test_setup_vcpu(ctx, 0, MEM_LOC_PAYLOAD, MEM_LOC_STACK);
if (err != 0) {
test_fail_errno(err, "Could not initialize vcpu0");
}
/*
* Although x2APIC should be off by default, make doubly sure by
* explicitly setting it so.
*/
err = vm_set_x2apic_state(ctx, 0, X2APIC_DISABLED);
if (err != 0) {
test_fail_errno(err, "Could not disable x2apic on vcpu0");
}
struct vm_entry ventry = { 0 };
struct vm_exit vexit = { 0 };
do {
const enum vm_exit_kind kind =
test_run_vcpu(ctx, 0, &ventry, &vexit);
switch (kind) {
case VEK_REENTR:
break;
case VEK_TEST_PASS:
test_pass();
break;
case VEK_TEST_FAIL:
test_fail_msg("payload signaled failure");
break;
case VEK_UNHANDLED:
/*
* Not all APICv-accelerated accesses are properly
* handled by the in-kernel emulation today.
* (See: illumos #13847).
*
* To allow this test to be useful on systems without
* APICv, we suppress such failures unless explicitly
* strict handling is requested.
*/
if (vexit.exitcode == VM_EXITCODE_VMX &&
(vexit.u.vmx.exit_reason == 44 ||
vexit.u.vmx.exit_reason == 56)) {
if (strict_apicv()) {
test_fail_vmexit(&vexit);
}
(void) fprintf(stderr,
"Ignoring APICv access issue\n"
"If strictness is desired, "
"run with %s=1 in env\n", strict_name);
test_pass();
}
test_fail_vmexit(&vexit);
break;
default:
test_fail_vmexit(&vexit);
break;
}
} while (true);
}
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