linux-kernel - [PATCH 043/128] KVM: selftests: Convert rseq_test away from VCPU

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Date:   Wed,  4 May 2022 22:47:49 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Andrew Jones <drjones@...hat.com>,
        David Matlack <dmatlack@...gle.com>,
        Ben Gardon <bgardon@...gle.com>,
        Oliver Upton <oupton@...gle.com>,
        Sean Christopherson <seanjc@...gle.com>
Subject: [PATCH 043/128] KVM: selftests: Convert rseq_test away from VCPU_ID

Convert rseq_test to use vm_create_with_one_vcpu() and pass around a
'struct kvm_vcpu' object instead of using a global VCPU_ID.

Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
 tools/testing/selftests/kvm/rseq_test.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/kvm/rseq_test.c b/tools/testing/selftests/kvm/rseq_test.c
index 4158da0da2bb..fd754de0b74c 100644
--- a/tools/testing/selftests/kvm/rseq_test.c
+++ b/tools/testing/selftests/kvm/rseq_test.c
@@ -20,8 +20,6 @@
 #include "processor.h"
 #include "test_util.h"
 
-#define VCPU_ID 0
-
 static __thread volatile struct rseq __rseq = {
 	.cpu_id = RSEQ_CPU_ID_UNINITIALIZED,
 };
@@ -207,6 +205,7 @@ int main(int argc, char *argv[])
 {
 	int r, i, snapshot;
 	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
 	u32 cpu, rseq_cpu;
 
 	/* Tell stdout not to buffer its content */
@@ -228,14 +227,14 @@ int main(int argc, char *argv[])
 	 * GUEST_SYNC, while concurrently migrating the process by setting its
 	 * CPU affinity.
 	 */
-	vm = vm_create_default(VCPU_ID, 0, guest_code);
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
 	ucall_init(vm, NULL);
 
 	pthread_create(&migration_thread, NULL, migration_worker, 0);
 
 	for (i = 0; !done; i++) {
-		vcpu_run(vm, VCPU_ID);
-		TEST_ASSERT(get_ucall(vm, VCPU_ID, NULL) == UCALL_SYNC,
+		vcpu_run(vm, vcpu->id);
+		TEST_ASSERT(get_ucall(vm, vcpu->id, NULL) == UCALL_SYNC,
 			    "Guest failed?");
 
 		/*
-- 
2.36.0.464.gb9c8b46e94-goog