From: Peter Xu <peterx@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Peter Xu <peterx@redhat.com>, Yan Zhao <yan.y.zhao@intel.com>,
Jason Wang <jasowang@redhat.com>,
Alex Williamson <alex.williamson@redhat.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
Christophe de Dinechin <dinechin@redhat.com>,
"Michael S . Tsirkin" <mst@redhat.com>,
Kevin Tian <kevin.tian@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <sean.j.christopherson@intel.com>
Subject: [PATCH v6 11/14] KVM: selftests: Introduce after_vcpu_run hook for dirty log test
Date: Mon, 9 Mar 2020 18:25:24 -0400 [thread overview]
Message-ID: <20200309222524.345649-1-peterx@redhat.com> (raw)
In-Reply-To: <20200309214424.330363-1-peterx@redhat.com>
Provide a hook for the checks after vcpu_run() completes. Preparation
for the dirty ring test because we'll need to take care of another
exit reason.
Since at it, drop the pages_count because after all we have a better
summary right now with statistics, and clean it up a bit.
Signed-off-by: Peter Xu <peterx@redhat.com>
---
tools/testing/selftests/kvm/dirty_log_test.c | 39 ++++++++++++--------
1 file changed, 23 insertions(+), 16 deletions(-)
diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c
index 642886394e34..b6fb4f86032c 100644
--- a/tools/testing/selftests/kvm/dirty_log_test.c
+++ b/tools/testing/selftests/kvm/dirty_log_test.c
@@ -173,6 +173,15 @@ static void clear_log_collect_dirty_pages(struct kvm_vm *vm, int slot,
kvm_vm_clear_dirty_log(vm, slot, bitmap, 0, num_pages);
}
+static void default_after_vcpu_run(struct kvm_vm *vm)
+{
+ struct kvm_run *run = vcpu_state(vm, VCPU_ID);
+
+ TEST_ASSERT(get_ucall(vm, VCPU_ID, NULL) == UCALL_SYNC,
+ "Invalid guest sync status: exit_reason=%s\n",
+ exit_reason_str(run->exit_reason));
+}
+
struct log_mode {
const char *name;
/* Return true if this mode is supported, otherwise false */
@@ -182,16 +191,20 @@ struct log_mode {
/* Hook to collect the dirty pages into the bitmap provided */
void (*collect_dirty_pages) (struct kvm_vm *vm, int slot,
void *bitmap, uint32_t num_pages);
+ /* Hook to call when after each vcpu run */
+ void (*after_vcpu_run)(struct kvm_vm *vm);
} log_modes[LOG_MODE_NUM] = {
{
.name = "dirty-log",
.collect_dirty_pages = dirty_log_collect_dirty_pages,
+ .after_vcpu_run = default_after_vcpu_run,
},
{
.name = "clear-log",
.supported = clear_log_supported,
.create_vm_done = clear_log_create_vm_done,
.collect_dirty_pages = clear_log_collect_dirty_pages,
+ .after_vcpu_run = default_after_vcpu_run,
},
};
@@ -241,6 +254,14 @@ static void log_mode_collect_dirty_pages(struct kvm_vm *vm, int slot,
mode->collect_dirty_pages(vm, slot, bitmap, num_pages);
}
+static void log_mode_after_vcpu_run(struct kvm_vm *vm)
+{
+ struct log_mode *mode = &log_modes[host_log_mode];
+
+ if (mode->after_vcpu_run)
+ mode->after_vcpu_run(vm);
+}
+
static void generate_random_array(uint64_t *guest_array, uint64_t size)
{
uint64_t i;
@@ -254,31 +275,17 @@ static void *vcpu_worker(void *data)
int ret;
struct kvm_vm *vm = data;
uint64_t *guest_array;
- uint64_t pages_count = 0;
- struct kvm_run *run;
-
- run = vcpu_state(vm, VCPU_ID);
guest_array = addr_gva2hva(vm, (vm_vaddr_t)random_array);
- generate_random_array(guest_array, TEST_PAGES_PER_LOOP);
while (!READ_ONCE(host_quit)) {
+ generate_random_array(guest_array, TEST_PAGES_PER_LOOP);
/* Let the guest dirty the random pages */
ret = _vcpu_run(vm, VCPU_ID);
TEST_ASSERT(ret == 0, "vcpu_run failed: %d\n", ret);
- if (get_ucall(vm, VCPU_ID, NULL) == UCALL_SYNC) {
- pages_count += TEST_PAGES_PER_LOOP;
- generate_random_array(guest_array, TEST_PAGES_PER_LOOP);
- } else {
- TEST_ASSERT(false,
- "Invalid guest sync status: "
- "exit_reason=%s\n",
- exit_reason_str(run->exit_reason));
- }
+ log_mode_after_vcpu_run(vm);
}
- DEBUG("Dirtied %"PRIu64" pages\n", pages_count);
-
return NULL;
}
--
2.24.1
next prev parent reply other threads:[~2020-03-09 22:25 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-09 21:44 [PATCH v6 00/14] KVM: Dirty ring interface Peter Xu
2020-03-09 21:44 ` [PATCH v6 01/14] KVM: X86: Change parameter for fast_page_fault tracepoint Peter Xu
2020-03-09 21:44 ` [PATCH v6 02/14] KVM: Cache as_id in kvm_memory_slot Peter Xu
2020-03-10 14:48 ` Sean Christopherson
2020-03-11 15:48 ` Peter Xu
2020-03-09 21:44 ` [PATCH v6 03/14] KVM: X86: Don't track dirty for KVM_SET_[TSS_ADDR|IDENTITY_MAP_ADDR] Peter Xu
2020-03-10 15:06 ` Sean Christopherson
2020-03-11 16:01 ` Peter Xu
2020-03-11 16:11 ` Sean Christopherson
2020-03-11 1:10 ` kbuild test robot
2020-03-11 16:39 ` Peter Xu
2020-03-11 17:09 ` Sean Christopherson
2020-03-18 20:04 ` Peter Xu
2020-03-09 21:44 ` [PATCH v6 04/14] KVM: Pass in kvm pointer into mark_page_dirty_in_slot() Peter Xu
2020-03-09 21:44 ` [PATCH v6 05/14] KVM: X86: Implement ring-based dirty memory tracking Peter Xu
2020-03-09 22:24 ` [PATCH v6 06/14] KVM: Make dirty ring exclusive to dirty bitmap log Peter Xu
2020-03-09 22:25 ` [PATCH v6 07/14] KVM: Don't allocate dirty bitmap if dirty ring is enabled Peter Xu
2020-03-09 22:25 ` [PATCH v6 08/14] KVM: selftests: Always clear dirty bitmap after iteration Peter Xu
2020-03-09 22:25 ` [PATCH v6 09/14] KVM: selftests: Sync uapi/linux/kvm.h to tools/ Peter Xu
2020-03-09 22:25 ` [PATCH v6 10/14] KVM: selftests: Use a single binary for dirty/clear log test Peter Xu
2020-03-10 8:10 ` Andrew Jones
2020-03-11 17:43 ` Peter Xu
2020-03-11 18:47 ` Andrew Jones
2020-03-09 22:25 ` Peter Xu [this message]
2020-03-09 22:25 ` [PATCH v6 12/14] KVM: selftests: Add dirty ring buffer test Peter Xu
2020-03-10 8:18 ` Andrew Jones
2020-03-11 17:44 ` Peter Xu
2020-03-09 22:25 ` [PATCH v6 13/14] KVM: selftests: Let dirty_log_test async for dirty ring test Peter Xu
2020-03-10 8:27 ` Andrew Jones
2020-03-11 17:45 ` Peter Xu
2020-03-09 22:25 ` [PATCH v6 14/14] KVM: selftests: Add "-c" parameter to dirty log test Peter Xu
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