linux-kernel - [PATCH 118/128] KVM: selftests: Remove vcpu_get() usage from dirty_log

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Date:   Wed,  4 May 2022 22:49:04 +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 118/128] KVM: selftests: Remove vcpu_get() usage from dirty_log_test

Grab the vCPU from vm_vcpu_add() directly instead of doing vcpu_get()
after the fact.  This will allow removing vcpu_get() entirely.

Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
 tools/testing/selftests/kvm/dirty_log_test.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c
index b61af23ba434..73c6fd9c850c 100644
--- a/tools/testing/selftests/kvm/dirty_log_test.c
+++ b/tools/testing/selftests/kvm/dirty_log_test.c
@@ -668,7 +668,7 @@ static void vm_dirty_log_verify(enum vm_guest_mode mode, unsigned long *bmap)
 	}
 }
 
-static struct kvm_vm *create_vm(enum vm_guest_mode mode, uint32_t vcpuid,
+static struct kvm_vm *create_vm(enum vm_guest_mode mode, struct kvm_vcpu **vcpu,
 				uint64_t extra_mem_pages, void *guest_code)
 {
 	struct kvm_vm *vm;
@@ -679,7 +679,7 @@ static struct kvm_vm *create_vm(enum vm_guest_mode mode, uint32_t vcpuid,
 	vm = __vm_create(mode, DEFAULT_GUEST_PHY_PAGES + extra_pg_pages);
 
 	log_mode_create_vm_done(vm);
-	vm_vcpu_add(vm, vcpuid, guest_code);
+	*vcpu = vm_vcpu_add(vm, 0, guest_code);
 	return vm;
 }
 
@@ -713,10 +713,8 @@ static void run_test(enum vm_guest_mode mode, void *arg)
 	 * (e.g., 64K page size guest will need even less memory for
 	 * page tables).
 	 */
-	vm = create_vm(mode, 0,
-		       2ul << (DIRTY_MEM_BITS - PAGE_SHIFT_4K),
-		       guest_code);
-	vcpu = vcpu_get(vm, 0);
+	vm = create_vm(mode, &vcpu,
+		       2ul << (DIRTY_MEM_BITS - PAGE_SHIFT_4K), guest_code);
 
 	guest_page_size = vm_get_page_size(vm);
 	/*
-- 
2.36.0.464.gb9c8b46e94-goog