linux-kernel - [PATCH v4 07/12] KVM: arm64: selftests: Finish generalizing get-reg-list

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Date:   Fri, 23 Jun 2023 18:40:09 +0800
From:   Haibo Xu <haibo1.xu@...el.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     xiaobo55x@...il.com, haibo1.xu@...el.com, ajones@...tanamicro.com,
        maz@...nel.org, oliver.upton@...ux.dev, seanjc@...gle.com,
        Paolo Bonzini <pbonzini@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        Anup Patel <anup@...infault.org>,
        Atish Patra <atishp@...shpatra.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Shuah Khan <shuah@...nel.org>,
        James Morse <james.morse@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Zenghui Yu <yuzenghui@...wei.com>,
        Ben Gardon <bgardon@...gle.com>,
        David Matlack <dmatlack@...gle.com>,
        Ricardo Koller <ricarkol@...gle.com>,
        Vishal Annapurve <vannapurve@...gle.com>,
        Vipin Sharma <vipinsh@...gle.com>,
        Colton Lewis <coltonlewis@...gle.com>, kvm@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        kvm-riscv@...ts.infradead.org, linux-riscv@...ts.infradead.org,
        linux-kselftest@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev
Subject: [PATCH v4 07/12] KVM: arm64: selftests: Finish generalizing get-reg-list

From: Andrew Jones <ajones@...tanamicro.com>

Add some unfortunate #ifdeffery to ensure the common get-reg-list.c
can be compiled and run with other architectures. The next
architecture to support get-reg-list should now only need to provide
$(ARCH_DIR)/get-reg-list.c where arch-specific print_reg() and
vcpu_configs[] get defined.

Signed-off-by: Andrew Jones <ajones@...tanamicro.com>
Signed-off-by: Haibo Xu <haibo1.xu@...el.com>
---
 tools/testing/selftests/kvm/get-reg-list.c | 26 +++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/kvm/get-reg-list.c b/tools/testing/selftests/kvm/get-reg-list.c
index 69bb91087081..f6ad7991a812 100644
--- a/tools/testing/selftests/kvm/get-reg-list.c
+++ b/tools/testing/selftests/kvm/get-reg-list.c
@@ -98,6 +98,7 @@ void __weak print_reg(const char *prefix, __u64 id)
 	printf("\t0x%llx,\n", id);
 }
 
+#ifdef __aarch64__
 static void prepare_vcpu_init(struct vcpu_reg_list *c, struct kvm_vcpu_init *init)
 {
 	struct vcpu_reg_sublist *s;
@@ -120,6 +121,25 @@ static void finalize_vcpu(struct kvm_vcpu *vcpu, struct vcpu_reg_list *c)
 	}
 }
 
+static struct kvm_vcpu *vcpu_config_get_vcpu(struct vcpu_reg_list *c, struct kvm_vm *vm)
+{
+	struct kvm_vcpu_init init = { .target = -1, };
+	struct kvm_vcpu *vcpu;
+
+	prepare_vcpu_init(c, &init);
+	vcpu = __vm_vcpu_add(vm, 0);
+	aarch64_vcpu_setup(vcpu, &init);
+	finalize_vcpu(vcpu, c);
+
+	return vcpu;
+}
+#else
+static struct kvm_vcpu *vcpu_config_get_vcpu(struct vcpu_reg_list *c, struct kvm_vm *vm)
+{
+	return __vm_vcpu_add(vm, 0);
+}
+#endif
+
 static void check_supported(struct vcpu_reg_list *c)
 {
 	struct vcpu_reg_sublist *s;
@@ -139,7 +159,6 @@ static bool print_filtered;
 
 static void run_test(struct vcpu_reg_list *c)
 {
-	struct kvm_vcpu_init init = { .target = -1, };
 	int new_regs = 0, missing_regs = 0, i, n;
 	int failed_get = 0, failed_set = 0, failed_reject = 0;
 	struct kvm_vcpu *vcpu;
@@ -149,10 +168,7 @@ static void run_test(struct vcpu_reg_list *c)
 	check_supported(c);
 
 	vm = vm_create_barebones();
-	prepare_vcpu_init(c, &init);
-	vcpu = __vm_vcpu_add(vm, 0);
-	aarch64_vcpu_setup(vcpu, &init);
-	finalize_vcpu(vcpu, c);
+	vcpu = vcpu_config_get_vcpu(c, vm);
 
 	reg_list = vcpu_get_reg_list(vcpu);
 
-- 
2.34.1