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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 2024 Oxide Computer Company
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <libgen.h>
#include <sys/stat.h>
#include <errno.h>
#include <err.h>
#include <assert.h>
#include <sys/sysmacros.h>
#include <stdbool.h>
#include <sys/vmm.h>
#include <sys/vmm_dev.h>
#include <sys/vmm_data.h>
#include <vmmapi.h>
#include "common.h"
int
main(int argc, char *argv[])
{
const char *suite_name = basename(argv[0]);
struct vmctx *ctx;
ctx = create_test_vm(suite_name);
if (ctx == NULL) {
errx(EXIT_FAILURE, "could not open test VM");
}
/* Query VM_MAXCPU equivalent via VM topology */
uint16_t sockets, cores, threads, maxcpus;
if (vm_get_topology(ctx, &sockets, &cores, &threads, &maxcpus) != 0) {
err(EXIT_FAILURE,
"could not query maxcpu via vm_get_topology()");
}
for (int i = 0; i < maxcpus; i++) {
struct vcpu *vcpu;
uint64_t val = 0;
if ((vcpu = vm_vcpu_open(ctx, i)) == NULL) {
err(EXIT_FAILURE, "could not open vcpu %d", i);
}
/* Check that all valid vCPUs can be activated... */
if (vm_activate_cpu(vcpu) != 0) {
err(EXIT_FAILURE, "could not activate vcpu %d", i);
}
/* and that we can do something basic (like read a register) */
if (vm_get_register(vcpu, VM_REG_GUEST_RAX, &val) != 0) {
err(EXIT_FAILURE, "could not read %%rax on vcpu %d", i);
}
vm_vcpu_close(vcpu);
}
/* Check some bogus inputs as well */
const int bad_inputs[] = {-1, maxcpus, maxcpus + 1};
for (uint_t i = 0; i < ARRAY_SIZE(bad_inputs); i++) {
const int vcpuid = bad_inputs[i];
/*
* There is no logic (currently) in vm_vcpu_open() checking
* vcpuid for validity, so we must use a further operation to
* perform a useful test.
*/
struct vcpu *vcpu = vm_vcpu_open(ctx, vcpuid);
if (vcpu == NULL) {
errx(EXIT_FAILURE,
"unexpected failure from vm_vcpu_open()");
}
if (vm_activate_cpu(vcpu) == 0) {
err(EXIT_FAILURE,
"unexpected VM_ACTIVATE success for bad vcpuid %d",
vcpuid);
}
vm_vcpu_close(vcpu);
}
vm_destroy(ctx);
(void) printf("%s\tPASS\n", suite_name);
return (EXIT_SUCCESS);
}
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