From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 2436453D9E6; Thu, 1 Oct 2026 21:08:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790888898; cv=none; b=eYVXCpRlRS35wq6+Y6FrZDHelmnI0ddkyDjcpxMoDFtv0pgOIDfDmPoliYhEmU12zBOefZu0U6ny3OnPO5GpTetFJzNsQFdnhc0kRi4sigw6qs5TEe0PMwgVbjKbkpJXQh8OeUivjabhonM8VbOvHu5jWpitzsbpa7FPWVRfMMs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790888898; c=relaxed/simple; bh=p+zcxg7BECsR89IwYH5uWpbzH4ouiCsroF6MFra80bY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=B0ykbY8RxTp6WmhPsfsdeVQroLR3XPX/fM3vXzvnUpeSfMjUZ6FWMEs38B83bl+sGOQK6GVmSlZKkcP8ksVfERYYz4+yNv5kBeFVrs6qJtI7dUxpp2WxVwM7KjfJO1pJvavqwfLb6HjQtvFKpJSwzCczjF+n4Ja24LYO9xq+dkQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=ljudYv2O; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="ljudYv2O" Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 139821476; Thu, 1 Oct 2026 14:08:13 -0700 (PDT) Received: from ewhatever.cambridge.arm.com (ewhatever.cambridge.arm.com [10.2.197.99]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 1CE943F86F; Thu, 1 Oct 2026 14:08:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1790888896; bh=p+zcxg7BECsR89IwYH5uWpbzH4ouiCsroF6MFra80bY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ljudYv2O+d9WFowhQOpSnrEkj9JxfgGTUeAPHmD6frk3qiRft2zy0dsr6z/d6SIfW 2ShRlTfZKa1IN3/1rxRd7BVQIS53yQzz/FbXdFLb2cRigCZAgXeroi1aQZX/+behuH vuabQTWZpPoFNatOKgSPs1taNoM0lr4nZLVWLDc8= From: Suzuki K Poulose To: kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: maz@kernel.org, will@kernel.org, catalin.marinas@arm.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, steven.price@arm.com, aneesh.kumar@kernel.org, oupton@kernel.org, gshan@redhat.com, joey.gouly@arm.com, tabba@google.com, yuzenghui@huawei.com, linux-coco@lists.linux.dev, gankulkarni@os.amperecomputing.com, sdonthineni@nvidia.com, alpergun@google.com, fj0570is@fujitsu.com, WeiLin.Chang@arm.com, lpieralisi@kernel.org, enju.kohei@fujitsu.com, sudeep.holla@arm.com, jonathan.cameron@oss.qualcomm.com, Suzuki K Poulose Subject: [PATCH v21 15/23] KVM: arm64: CCA: Add VCPU load/put for Realms Date: Thu, 1 Oct 2026 22:06:55 +0100 Message-ID: <20261001210703.1597150-16-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261001210703.1597150-1-suzuki.poulose@arm.com> References: <20261001210703.1597150-1-suzuki.poulose@arm.com> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit RMM controls the VCPU settings and most are hidden from the KVM, except for the VGIC and timer bits. A later patch would add syncing the VCPU state into the Realm REC related SMC parameters. Signed-off-by: Suzuki K Poulose --- arch/arm64/kvm/arm.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 3ab722f2af7c8..8b1beddd80ea5 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -802,6 +802,13 @@ static void pkvm_vcpu_load(struct kvm_vcpu *vcpu) &vcpu->arch.vgic_cpu.vgic_v3); } +static void realm_vcpu_load(struct kvm_vcpu *vcpu) +{ + kvm_timer_vcpu_load(vcpu); + kvm_vgic_load(vcpu); + vcpu_set_wfx_traps(vcpu); +} + void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { vcpu->cpu = cpu; @@ -854,6 +861,12 @@ static void pkvm_vcpu_put(struct kvm_vcpu *vcpu) kvm_vcpu_pmu_restore_host(vcpu); } +static void realm_vcpu_put(struct kvm_vcpu *vcpu) +{ + kvm_timer_vcpu_put(vcpu); + kvm_vgic_put(vcpu); +} + void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) { vcpu->arch.vcpu_ops->vcpu_put(vcpu); @@ -2211,6 +2224,11 @@ static const struct kvm_vcpu_ops pkvm_vcpu_ops = { .vcpu_put = pkvm_vcpu_put, }; +static const struct kvm_vcpu_ops realm_vcpu_ops = { + .vcpu_load = realm_vcpu_load, + .vcpu_put = realm_vcpu_put, +}; + #define KVM_VCPU_OPS(flavor, ops) \ [(flavor)] = (ops) -- 2.43.0