1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* IRQ routing offset tests.
*
* Copyright IBM Corp. 2026
*
* Authors:
* Janosch Frank <frankja@linux.ibm.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include "test_util.h"
#include "kvm_util.h"
#include "kselftest.h"
#include "ucall_common.h"
extern char guest_code[];
asm("guest_code:\n"
"diag %r0,%r0,0\n"
"j .\n");
static void test(void)
{
struct kvm_irq_routing *routing;
struct kvm_vcpu *vcpu;
struct kvm_vm *vm;
vm_paddr_t mem;
int ret;
struct kvm_irq_routing_entry ue = {
.type = KVM_IRQ_ROUTING_S390_ADAPTER,
.gsi = 1,
};
vm = vm_create_with_one_vcpu(&vcpu, guest_code);
mem = vm_phy_pages_alloc(vm, 2, 4096 * 42, 0);
routing = kvm_gsi_routing_create();
routing->nr = 1;
routing->entries[0] = ue;
routing->entries[0].u.adapter.summary_addr = (uintptr_t)mem;
routing->entries[0].u.adapter.ind_addr = (uintptr_t)mem;
routing->entries[0].u.adapter.summary_offset = 4096 * 8;
ret = __vm_ioctl(vm, KVM_SET_GSI_ROUTING, routing);
ksft_test_result(ret == -1 && errno == EINVAL, "summary offset outside of page\n");
routing->entries[0].u.adapter.summary_offset -= 4;
ret = __vm_ioctl(vm, KVM_SET_GSI_ROUTING, routing);
ksft_test_result(ret == 0, "summary offset inside of page\n");
routing->entries[0].u.adapter.ind_offset = 4096 * 8;
ret = __vm_ioctl(vm, KVM_SET_GSI_ROUTING, routing);
ksft_test_result(ret == -1 && errno == EINVAL, "ind offset outside of page\n");
routing->entries[0].u.adapter.ind_offset -= 4;
ret = __vm_ioctl(vm, KVM_SET_GSI_ROUTING, routing);
ksft_test_result(ret == 0, "ind offset inside of page\n");
kvm_vm_free(vm);
}
int main(int argc, char *argv[])
{
TEST_REQUIRE(kvm_has_cap(KVM_CAP_IRQ_ROUTING));
ksft_print_header();
ksft_set_plan(4);
test();
ksft_finished(); /* Print results and exit() accordingly */
}
|
