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kvm: selftests: dirty_log_test: reset guest test phys offset

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We need to reset the offset for each mode as it will change
depending on the number of guest physical address bits.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
This commit is contained in:
Andrew Jones 2018-11-06 14:57:09 +01:00 committed by Paolo Bonzini
parent 6498e1da84
commit fd3f6f8139
1 changed files with 7 additions and 4 deletions
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11
tools/testing/selftests/kvm/dirty_log_test.c
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@ -231,7 +231,7 @@ static struct kvm_vm *create_vm(enum vm_guest_mode mode, uint32_t vcpuid,
}
static void run_test(enum vm_guest_mode mode, unsigned long iterations,
unsigned long interval)
unsigned long interval, uint64_t phys_offset)
{
unsigned int guest_pa_bits, guest_page_shift;
pthread_t vcpu_thread;
@ -279,9 +279,11 @@ static void run_test(enum vm_guest_mode mode, unsigned long iterations,
host_num_pages = (guest_num_pages * guest_page_size) / host_page_size +
!!((guest_num_pages * guest_page_size) % host_page_size);
if (!guest_test_phys_mem) {
if (!phys_offset) {
guest_test_phys_mem = (max_gfn - guest_num_pages) * guest_page_size;
guest_test_phys_mem &= ~(host_page_size - 1);
} else {
guest_test_phys_mem = phys_offset;
}
DEBUG("guest physical test memory offset: 0x%lx\n", guest_test_phys_mem);
@ -414,6 +416,7 @@ int main(int argc, char *argv[])
unsigned long iterations = TEST_HOST_LOOP_N;
unsigned long interval = TEST_HOST_LOOP_INTERVAL;
bool mode_selected = false;
uint64_t phys_offset = 0;
unsigned int mode;
int opt, i;
@ -433,7 +436,7 @@ int main(int argc, char *argv[])
interval = strtol(optarg, NULL, 10);
break;
case 'p':
guest_test_phys_mem = strtoull(optarg, NULL, 0);
phys_offset = strtoull(optarg, NULL, 0);
break;
case 'm':
if (!mode_selected) {
@ -468,7 +471,7 @@ int main(int argc, char *argv[])
"Guest mode ID %d (%s) not supported.",
vm_guest_modes[i].mode,
vm_guest_mode_string(vm_guest_modes[i].mode));
run_test(vm_guest_modes[i].mode, iterations, interval);
run_test(vm_guest_modes[i].mode, iterations, interval, phys_offset);
}
return 0;