Revision 41cb62c2 kvm-all.c
| b/kvm-all.c | ||
|---|---|---|
| 501 | 501 |
} |
| 502 | 502 |
|
| 503 | 503 |
static int kvm_set_ioeventfd_mmio(int fd, uint32_t addr, uint32_t val, |
| 504 |
bool assign, uint32_t size) |
|
| 504 |
bool assign, uint32_t size, bool datamatch)
|
|
| 505 | 505 |
{
|
| 506 | 506 |
int ret; |
| 507 | 507 |
struct kvm_ioeventfd iofd; |
| 508 | 508 |
|
| 509 |
iofd.datamatch = val;
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|
| 509 |
iofd.datamatch = datamatch ? val : 0;
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|
| 510 | 510 |
iofd.addr = addr; |
| 511 | 511 |
iofd.len = size; |
| 512 |
iofd.flags = KVM_IOEVENTFD_FLAG_DATAMATCH;
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|
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iofd.flags = 0;
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|
| 513 | 513 |
iofd.fd = fd; |
| 514 | 514 |
|
| 515 | 515 |
if (!kvm_enabled()) {
|
| 516 | 516 |
return -ENOSYS; |
| 517 | 517 |
} |
| 518 | 518 |
|
| 519 |
if (datamatch) {
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|
| 520 |
iofd.flags |= KVM_IOEVENTFD_FLAG_DATAMATCH; |
|
| 521 |
} |
|
| 519 | 522 |
if (!assign) {
|
| 520 | 523 |
iofd.flags |= KVM_IOEVENTFD_FLAG_DEASSIGN; |
| 521 | 524 |
} |
| ... | ... | |
| 530 | 533 |
} |
| 531 | 534 |
|
| 532 | 535 |
static int kvm_set_ioeventfd_pio(int fd, uint16_t addr, uint16_t val, |
| 533 |
bool assign, uint32_t size) |
|
| 536 |
bool assign, uint32_t size, bool datamatch)
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|
| 534 | 537 |
{
|
| 535 | 538 |
struct kvm_ioeventfd kick = {
|
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.datamatch = val,
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|
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.datamatch = datamatch ? val : 0,
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|
| 537 | 540 |
.addr = addr, |
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.flags = KVM_IOEVENTFD_FLAG_PIO, |
|
| 538 | 542 |
.len = size, |
| 539 |
.flags = KVM_IOEVENTFD_FLAG_DATAMATCH | KVM_IOEVENTFD_FLAG_PIO, |
|
| 540 | 543 |
.fd = fd, |
| 541 | 544 |
}; |
| 542 | 545 |
int r; |
| 543 | 546 |
if (!kvm_enabled()) {
|
| 544 | 547 |
return -ENOSYS; |
| 545 | 548 |
} |
| 549 |
if (datamatch) {
|
|
| 550 |
kick.flags |= KVM_IOEVENTFD_FLAG_DATAMATCH; |
|
| 551 |
} |
|
| 546 | 552 |
if (!assign) {
|
| 547 | 553 |
kick.flags |= KVM_IOEVENTFD_FLAG_DEASSIGN; |
| 548 | 554 |
} |
| ... | ... | |
| 571 | 577 |
if (ioeventfds[i] < 0) {
|
| 572 | 578 |
break; |
| 573 | 579 |
} |
| 574 |
ret = kvm_set_ioeventfd_pio(ioeventfds[i], 0, i, true, 2); |
|
| 580 |
ret = kvm_set_ioeventfd_pio(ioeventfds[i], 0, i, true, 2, true);
|
|
| 575 | 581 |
if (ret < 0) {
|
| 576 | 582 |
close(ioeventfds[i]); |
| 577 | 583 |
break; |
| ... | ... | |
| 582 | 588 |
ret = i == ARRAY_SIZE(ioeventfds); |
| 583 | 589 |
|
| 584 | 590 |
while (i-- > 0) {
|
| 585 |
kvm_set_ioeventfd_pio(ioeventfds[i], 0, i, false, 2); |
|
| 591 |
kvm_set_ioeventfd_pio(ioeventfds[i], 0, i, false, 2, true);
|
|
| 586 | 592 |
close(ioeventfds[i]); |
| 587 | 593 |
} |
| 588 | 594 |
return ret; |
| ... | ... | |
| 802 | 808 |
int fd = event_notifier_get_fd(e); |
| 803 | 809 |
int r; |
| 804 | 810 |
|
| 805 |
assert(match_data && section->size <= 8); |
|
| 806 |
|
|
| 807 | 811 |
r = kvm_set_ioeventfd_mmio(fd, section->offset_within_address_space, |
| 808 |
data, true, section->size); |
|
| 812 |
data, true, section->size, match_data);
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|
| 809 | 813 |
if (r < 0) {
|
| 810 | 814 |
abort(); |
| 811 | 815 |
} |
| ... | ... | |
| 820 | 824 |
int r; |
| 821 | 825 |
|
| 822 | 826 |
r = kvm_set_ioeventfd_mmio(fd, section->offset_within_address_space, |
| 823 |
data, false, section->size); |
|
| 827 |
data, false, section->size, match_data);
|
|
| 824 | 828 |
if (r < 0) {
|
| 825 | 829 |
abort(); |
| 826 | 830 |
} |
| ... | ... | |
| 834 | 838 |
int fd = event_notifier_get_fd(e); |
| 835 | 839 |
int r; |
| 836 | 840 |
|
| 837 |
assert(match_data && section->size <= 8); |
|
| 838 |
|
|
| 839 | 841 |
r = kvm_set_ioeventfd_pio(fd, section->offset_within_address_space, |
| 840 |
data, true, section->size); |
|
| 842 |
data, true, section->size, match_data);
|
|
| 841 | 843 |
if (r < 0) {
|
| 842 | 844 |
abort(); |
| 843 | 845 |
} |
| ... | ... | |
| 853 | 855 |
int r; |
| 854 | 856 |
|
| 855 | 857 |
r = kvm_set_ioeventfd_pio(fd, section->offset_within_address_space, |
| 856 |
data, false, section->size); |
|
| 858 |
data, false, section->size, match_data);
|
|
| 857 | 859 |
if (r < 0) {
|
| 858 | 860 |
abort(); |
| 859 | 861 |
} |
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