@@ -85,6 +85,7 @@ struct test_params {
useconds_t delay;
uint64_t nr_iterations;
bool partition_vcpu_memory_access;
+ bool disable_slot_zap_quirk;
};
static void run_test(enum vm_guest_mode mode, void *arg)
@@ -95,6 +96,13 @@ static void run_test(enum vm_guest_mode mode, void *arg)
vm = memstress_create_vm(mode, nr_vcpus, guest_percpu_mem_size, 1,
VM_MEM_SRC_ANONYMOUS,
p->partition_vcpu_memory_access);
+#ifdef __x86_64__
+ if (p->disable_slot_zap_quirk)
+ vm_enable_cap(vm, KVM_CAP_DISABLE_QUIRKS2, KVM_X86_QUIRK_SLOT_ZAP_ALL);
+
+ pr_info("Memslot zap quirk %s\n", p->disable_slot_zap_quirk ?
+ "disabled" : "enabled");
+#endif
pr_info("Finished creating vCPUs\n");
@@ -113,11 +121,12 @@ static void run_test(enum vm_guest_mode mode, void *arg)
static void help(char *name)
{
puts("");
- printf("usage: %s [-h] [-m mode] [-d delay_usec]\n"
+ printf("usage: %s [-h] [-m mode] [-d delay_usec] [-q]\n"
" [-b memory] [-v vcpus] [-o] [-i iterations]\n", name);
guest_modes_help();
printf(" -d: add a delay between each iteration of adding and\n"
" deleting a memslot in usec.\n");
+ printf(" -q: Disable memslot zap quirk.\n");
printf(" -b: specify the size of the memory region which should be\n"
" accessed by each vCPU. e.g. 10M or 3G.\n"
" Default: 1G\n");
@@ -143,7 +152,7 @@ int main(int argc, char *argv[])
guest_modes_append_default();
- while ((opt = getopt(argc, argv, "hm:d:b:v:oi:")) != -1) {
+ while ((opt = getopt(argc, argv, "hm:d:qb:v:oi:")) != -1) {
switch (opt) {
case 'm':
guest_modes_cmdline(optarg);
@@ -166,6 +175,12 @@ int main(int argc, char *argv[])
case 'i':
p.nr_iterations = atoi_positive("Number of iterations", optarg);
break;
+ case 'q':
+ p.disable_slot_zap_quirk = true;
+
+ TEST_REQUIRE(kvm_check_cap(KVM_CAP_DISABLE_QUIRKS2) &
+ KVM_X86_QUIRK_SLOT_ZAP_ALL);
+ break;
case 'h':
default:
help(argv[0]);
Add a new user option to memslot_modification_stress_test to allow testing with slot zap quirk KVM_X86_QUIRK_SLOT_ZAP_ALL disabled. Signed-off-by: Yan Zhao <yan.y.zhao@intel.com> --- .../kvm/memslot_modification_stress_test.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-)