From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-2.mta0.migadu.com (out-2.mta0.migadu.com [91.218.175.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 55E1BBA4C for ; Tue, 4 Apr 2023 15:41:13 +0000 (UTC) X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1680622870; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=AoqsVgN2tC8iCvDotSp79/T9YBYSz/45h6FJpoqtxMc=; b=SLeo11OSxiTqh8c0Y7MSei3WKsLEbicdrSY4CcR1dj4VJo59La+NZvErDrQKJrRIdnLI8e KP/mOhn8AtQrR+4c+7tBV1VkNn3kOLA7SKl7ksErAWbzpfNFT+kBtwSzPJRyQy1rqj/7yd e4PgbLMHhJMQbu7gGSz+8kEui627JQI= From: Oliver Upton To: kvmarm@lists.linux.dev Cc: kvm@vger.kernel.org, Paolo Bonzini , Marc Zyngier , James Morse , Suzuki K Poulose , Zenghui Yu , Sean Christopherson , Salil Mehta , Oliver Upton Subject: [PATCH v3 02/13] KVM: arm64: Add a helper to check if a VM has ran once Date: Tue, 4 Apr 2023 15:40:39 +0000 Message-Id: <20230404154050.2270077-3-oliver.upton@linux.dev> In-Reply-To: <20230404154050.2270077-1-oliver.upton@linux.dev> References: <20230404154050.2270077-1-oliver.upton@linux.dev> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT The test_bit(...) pattern is quite a lot of keystrokes. Replace existing callsites with a helper. No functional change intended. Signed-off-by: Oliver Upton --- arch/arm64/include/asm/kvm_host.h | 3 +++ arch/arm64/kvm/hypercalls.c | 3 +-- arch/arm64/kvm/pmu-emul.c | 4 ++-- 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index bcd774d74f34..d091d1c9890b 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -1061,6 +1061,9 @@ bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu); (system_supports_32bit_el0() && \ !static_branch_unlikely(&arm64_mismatched_32bit_el0)) +#define kvm_vm_has_ran_once(kvm) \ + (test_bit(KVM_ARCH_FLAG_HAS_RAN_ONCE, &(kvm)->arch.flags)) + int kvm_trng_call(struct kvm_vcpu *vcpu); #ifdef CONFIG_KVM extern phys_addr_t hyp_mem_base; diff --git a/arch/arm64/kvm/hypercalls.c b/arch/arm64/kvm/hypercalls.c index 5da884e11337..a09a526a7d7c 100644 --- a/arch/arm64/kvm/hypercalls.c +++ b/arch/arm64/kvm/hypercalls.c @@ -379,8 +379,7 @@ static int kvm_arm_set_fw_reg_bmap(struct kvm_vcpu *vcpu, u64 reg_id, u64 val) mutex_lock(&kvm->lock); - if (test_bit(KVM_ARCH_FLAG_HAS_RAN_ONCE, &kvm->arch.flags) && - val != *fw_reg_bmap) { + if (kvm_vm_has_ran_once(kvm) && val != *fw_reg_bmap) { ret = -EBUSY; goto out; } diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c index 24908400e190..a0fc569fdbca 100644 --- a/arch/arm64/kvm/pmu-emul.c +++ b/arch/arm64/kvm/pmu-emul.c @@ -880,7 +880,7 @@ static int kvm_arm_pmu_v3_set_pmu(struct kvm_vcpu *vcpu, int pmu_id) list_for_each_entry(entry, &arm_pmus, entry) { arm_pmu = entry->arm_pmu; if (arm_pmu->pmu.type == pmu_id) { - if (test_bit(KVM_ARCH_FLAG_HAS_RAN_ONCE, &kvm->arch.flags) || + if (kvm_vm_has_ran_once(kvm) || (kvm->arch.pmu_filter && kvm->arch.arm_pmu != arm_pmu)) { ret = -EBUSY; break; @@ -963,7 +963,7 @@ int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr) mutex_lock(&kvm->lock); - if (test_bit(KVM_ARCH_FLAG_HAS_RAN_ONCE, &kvm->arch.flags)) { + if (kvm_vm_has_ran_once(kvm)) { mutex_unlock(&kvm->lock); return -EBUSY; } -- 2.40.0.348.gf938b09366-goog