Contributors: 11
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Andrew Jones |
210 |
28.19% |
8 |
32.00% |
| Marc Zyngier |
148 |
19.87% |
4 |
16.00% |
| Wu Fei |
127 |
17.05% |
1 |
4.00% |
| Ben Gardon |
81 |
10.87% |
2 |
8.00% |
| Christian Bornträger |
67 |
8.99% |
1 |
4.00% |
| Ryan Roberts |
62 |
8.32% |
2 |
8.00% |
| Anup Patel |
35 |
4.70% |
1 |
4.00% |
| Paolo Bonzini |
8 |
1.07% |
1 |
4.00% |
| Sean Christopherson |
3 |
0.40% |
3 |
12.00% |
| Shaoqin Huang |
3 |
0.40% |
1 |
4.00% |
| Peter Xu |
1 |
0.13% |
1 |
4.00% |
| Total |
745 |
|
25 |
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2020, Red Hat, Inc.
*/
#include "guest_modes.h"
#if defined(__aarch64__) || defined(__riscv)
#include "processor.h"
enum vm_guest_mode vm_mode_default;
#endif
struct guest_mode guest_modes[NUM_VM_MODES];
void guest_modes_append_default(void)
{
#if !defined(__aarch64__) && !defined(__riscv)
guest_mode_append(VM_MODE_DEFAULT, true);
#endif
#ifdef __aarch64__
{
unsigned int limit = kvm_check_cap(KVM_CAP_ARM_VM_IPA_SIZE);
uint32_t ipa4k, ipa16k, ipa64k;
int i;
aarch64_get_supported_page_sizes(limit, &ipa4k, &ipa16k, &ipa64k);
guest_mode_append(VM_MODE_P52V48_4K, ipa4k >= 52);
guest_mode_append(VM_MODE_P52V48_16K, ipa16k >= 52);
guest_mode_append(VM_MODE_P52V48_64K, ipa64k >= 52);
guest_mode_append(VM_MODE_P48V48_4K, ipa4k >= 48);
guest_mode_append(VM_MODE_P48V48_16K, ipa16k >= 48);
guest_mode_append(VM_MODE_P48V48_64K, ipa64k >= 48);
guest_mode_append(VM_MODE_P40V48_4K, ipa4k >= 40);
guest_mode_append(VM_MODE_P40V48_16K, ipa16k >= 40);
guest_mode_append(VM_MODE_P40V48_64K, ipa64k >= 40);
guest_mode_append(VM_MODE_P36V48_4K, ipa4k >= 36);
guest_mode_append(VM_MODE_P36V48_16K, ipa16k >= 36);
guest_mode_append(VM_MODE_P36V48_64K, ipa64k >= 36);
guest_mode_append(VM_MODE_P36V47_16K, ipa16k >= 36);
vm_mode_default = ipa4k >= 40 ? VM_MODE_P40V48_4K : NUM_VM_MODES;
/*
* Pick the first supported IPA size if the default
* isn't available.
*/
for (i = 0; vm_mode_default == NUM_VM_MODES && i < NUM_VM_MODES; i++) {
if (guest_modes[i].supported && guest_modes[i].enabled)
vm_mode_default = i;
}
TEST_ASSERT(vm_mode_default != NUM_VM_MODES,
"No supported mode!");
}
#endif
#ifdef __s390x__
{
int kvm_fd, vm_fd;
struct kvm_s390_vm_cpu_processor info;
kvm_fd = open_kvm_dev_path_or_exit();
vm_fd = __kvm_ioctl(kvm_fd, KVM_CREATE_VM, NULL);
kvm_device_attr_get(vm_fd, KVM_S390_VM_CPU_MODEL,
KVM_S390_VM_CPU_PROCESSOR, &info);
close(vm_fd);
close(kvm_fd);
/* Starting with z13 we have 47bits of physical address */
if (info.ibc >= 0x30)
guest_mode_append(VM_MODE_P47V64_4K, true);
}
#endif
#ifdef __riscv
{
unsigned int sz = kvm_check_cap(KVM_CAP_VM_GPA_BITS);
unsigned long satp_mode = riscv64_get_satp_mode() << SATP_MODE_SHIFT;
int i;
switch (sz) {
case 59:
guest_mode_append(VM_MODE_P56V57_4K, satp_mode >= SATP_MODE_57);
guest_mode_append(VM_MODE_P56V48_4K, satp_mode >= SATP_MODE_48);
guest_mode_append(VM_MODE_P56V39_4K, satp_mode >= SATP_MODE_39);
break;
case 50:
guest_mode_append(VM_MODE_P50V57_4K, satp_mode >= SATP_MODE_57);
guest_mode_append(VM_MODE_P50V48_4K, satp_mode >= SATP_MODE_48);
guest_mode_append(VM_MODE_P50V39_4K, satp_mode >= SATP_MODE_39);
break;
case 41:
guest_mode_append(VM_MODE_P41V57_4K, satp_mode >= SATP_MODE_57);
guest_mode_append(VM_MODE_P41V48_4K, satp_mode >= SATP_MODE_48);
guest_mode_append(VM_MODE_P41V39_4K, satp_mode >= SATP_MODE_39);
break;
default:
break;
}
/* set the first supported mode as default */
vm_mode_default = NUM_VM_MODES;
for (i = 0; vm_mode_default == NUM_VM_MODES && i < NUM_VM_MODES; i++) {
if (guest_modes[i].supported && guest_modes[i].enabled)
vm_mode_default = i;
}
TEST_ASSERT(vm_mode_default != NUM_VM_MODES, "No supported mode!");
}
#endif
}
void for_each_guest_mode(void (*func)(enum vm_guest_mode, void *), void *arg)
{
int i;
for (i = 0; i < NUM_VM_MODES; ++i) {
if (!guest_modes[i].enabled)
continue;
TEST_ASSERT(guest_modes[i].supported,
"Guest mode ID %d (%s) not supported.",
i, vm_guest_mode_string(i));
func(i, arg);
}
}
void guest_modes_help(void)
{
int i;
printf(" -m: specify the guest mode ID to test\n"
" (default: test all supported modes)\n"
" This option may be used multiple times.\n"
" Guest mode IDs:\n");
for (i = 0; i < NUM_VM_MODES; ++i) {
printf(" %d: %s%s\n", i, vm_guest_mode_string(i),
guest_modes[i].supported ? " (supported)" : "");
}
}
void guest_modes_cmdline(const char *arg)
{
static bool mode_selected;
unsigned int mode;
int i;
if (!mode_selected) {
for (i = 0; i < NUM_VM_MODES; ++i)
guest_modes[i].enabled = false;
mode_selected = true;
}
mode = atoi_non_negative("Guest mode ID", arg);
TEST_ASSERT(mode < NUM_VM_MODES, "Guest mode ID %d too big", mode);
guest_modes[mode].enabled = true;
}