From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 C74442F0664; Tue, 2 Sep 2025 11:44:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756813495; cv=none; b=Aolzm/EPAxwD3VsqCq0blGUIHyEaXG+APWyX9Til7ZONVULV0Ql3OkMItaWRyPk0Rr07UcIimnkHIGGevT/hia0ilYXngWCJk9YFu1Fpno/rjwkYZfJsWnAjXKVTJUgWHJKCiV+ErQuDMaNQDsupw+THKq1nDv20w2dIi8bqm7g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756813495; c=relaxed/simple; bh=Sp+TAelZmX24aLyaDocHISqg813AdGCzZMNr5P6CYI4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=nni71y4jc4MiO2oTM3mPm6MbJCe1gL+et2pcFdC39O/DpFklc3xvdGngN4jOkPmiAjCtXV1CMBOBZiV7SfoeZjF93dkcTQrqHzVxr8fCrTGOVeszIH6Bi1ANsnVjf6QUbMBGxvr7+znMNY/GO5MKxYknwLKmtQLCX4GSLkEjDsY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YHAgqOE7; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YHAgqOE7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12673C4CEED; Tue, 2 Sep 2025 11:44:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756813494; bh=Sp+TAelZmX24aLyaDocHISqg813AdGCzZMNr5P6CYI4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=YHAgqOE7KQtKY7UsOu/+ZFQI7lrbO8HMaKS9ToJzVO6BjFO18dynGNlDq9+Ka1cGD iudfJAC8rK0ka3LMnYKE/gidF/QDLWZ5o5i8bCtnvPAZz0GQNzGFqbj/d5yZ1CArDD c+G/rhRJM713NtQhARKr4kVp8O3+E+lS3Fefm9S6XOxfhIiVFSH5c/zOKfLBFQFT0R 7FnmhxDipReRc4GxgjmeZVBxzLlxV3PRhBEkTVyOOKAfwpRCtXT2FaoTefr5LcfEOg 4Rb6AkO3QTlV+JLRu7TmuBHJrCbuLWf2nbXriCiIRV2AnWQOveOBAMHqJsuVAObBvy /ImwJdI9DL3Ng== From: Mark Brown Date: Tue, 02 Sep 2025 12:36:11 +0100 Subject: [PATCH v8 08/29] KVM: arm64: Pull ctxt_has_ helpers to start of sysreg-sr.h Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250902-kvm-arm64-sme-v8-8-2cb2199c656c@kernel.org> References: <20250902-kvm-arm64-sme-v8-0-2cb2199c656c@kernel.org> In-Reply-To: <20250902-kvm-arm64-sme-v8-0-2cb2199c656c@kernel.org> To: Marc Zyngier , Oliver Upton , Joey Gouly , Catalin Marinas , Suzuki K Poulose , Will Deacon , Paolo Bonzini , Jonathan Corbet , Shuah Khan Cc: Dave Martin , Fuad Tabba , Mark Rutland , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, Peter Maydell , Eric Auger , Mark Brown X-Mailer: b4 0.15-dev-cff91 X-Developer-Signature: v=1; a=openpgp-sha256; l=3907; i=broonie@kernel.org; h=from:subject:message-id; bh=Sp+TAelZmX24aLyaDocHISqg813AdGCzZMNr5P6CYI4=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBottiAK2q+ieSftP3JR5svFfItgXatZ39qk/zGd PtPYIYgO0iJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCaLbYgAAKCRAk1otyXVSH 0HJhCACA30PK9at39oFg90KacChbs0sADn+mpW6Jo0390EGQbphyyC/+K1gsocs7LFdd7VJ0Jwz ZMr0qkcmFhr3w0UrhdAceYzB6GblriRRheA8G6uE5xhCspowyxweVhB85A/J8GT9vABBOqpQqfQ K9HcMizFkem7RJxW5Vuxgl9TZAwZ/cG2Sqlj4ywasUB27UyqVoqwaFvUfst4NTzJ7g4nqDGL3vr cKRgJUzFaT1vajh2Aqn8EiqvdhSJ487Cc2Cf44TzBbSu1DLeFkNglQmM4Jf4duiD53wuE0c2nrr YRNx5Ed+EgsMg1/6dgC1uV1Qz1yepptm4iJjRWkxUkU5KAMO X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB Rather than add earlier prototypes of specific ctxt_has_ helpers let's just pull all their definitions to the top of sysreg-sr.h so they're all available to all the individual save/restore functions. Signed-off-by: Mark Brown --- arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h | 84 +++++++++++++++--------------- 1 file changed, 41 insertions(+), 43 deletions(-) diff --git a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h index a17cbe7582de..5624fd705ae3 100644 --- a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h +++ b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h @@ -16,8 +16,6 @@ #include #include -static inline bool ctxt_has_s1poe(struct kvm_cpu_context *ctxt); - static inline struct kvm_vcpu *ctxt_to_vcpu(struct kvm_cpu_context *ctxt) { struct kvm_vcpu *vcpu = ctxt->__hyp_running_vcpu; @@ -28,47 +26,6 @@ static inline struct kvm_vcpu *ctxt_to_vcpu(struct kvm_cpu_context *ctxt) return vcpu; } -static inline bool ctxt_is_guest(struct kvm_cpu_context *ctxt) -{ - return host_data_ptr(host_ctxt) != ctxt; -} - -static inline u64 *ctxt_mdscr_el1(struct kvm_cpu_context *ctxt) -{ - struct kvm_vcpu *vcpu = ctxt_to_vcpu(ctxt); - - if (ctxt_is_guest(ctxt) && kvm_host_owns_debug_regs(vcpu)) - return &vcpu->arch.external_mdscr_el1; - - return &ctxt_sys_reg(ctxt, MDSCR_EL1); -} - -static inline u64 ctxt_midr_el1(struct kvm_cpu_context *ctxt) -{ - struct kvm *kvm = kern_hyp_va(ctxt_to_vcpu(ctxt)->kvm); - - if (!(ctxt_is_guest(ctxt) && - test_bit(KVM_ARCH_FLAG_WRITABLE_IMP_ID_REGS, &kvm->arch.flags))) - return read_cpuid_id(); - - return kvm_read_vm_id_reg(kvm, SYS_MIDR_EL1); -} - -static inline void __sysreg_save_common_state(struct kvm_cpu_context *ctxt) -{ - *ctxt_mdscr_el1(ctxt) = read_sysreg(mdscr_el1); - - // POR_EL0 can affect uaccess, so must be saved/restored early. - if (ctxt_has_s1poe(ctxt)) - ctxt_sys_reg(ctxt, POR_EL0) = read_sysreg_s(SYS_POR_EL0); -} - -static inline void __sysreg_save_user_state(struct kvm_cpu_context *ctxt) -{ - ctxt_sys_reg(ctxt, TPIDR_EL0) = read_sysreg(tpidr_el0); - ctxt_sys_reg(ctxt, TPIDRRO_EL0) = read_sysreg(tpidrro_el0); -} - static inline bool ctxt_has_mte(struct kvm_cpu_context *ctxt) { struct kvm_vcpu *vcpu = ctxt_to_vcpu(ctxt); @@ -131,6 +88,47 @@ static inline bool ctxt_has_sctlr2(struct kvm_cpu_context *ctxt) return kvm_has_sctlr2(kern_hyp_va(vcpu->kvm)); } +static inline bool ctxt_is_guest(struct kvm_cpu_context *ctxt) +{ + return host_data_ptr(host_ctxt) != ctxt; +} + +static inline u64 *ctxt_mdscr_el1(struct kvm_cpu_context *ctxt) +{ + struct kvm_vcpu *vcpu = ctxt_to_vcpu(ctxt); + + if (ctxt_is_guest(ctxt) && kvm_host_owns_debug_regs(vcpu)) + return &vcpu->arch.external_mdscr_el1; + + return &ctxt_sys_reg(ctxt, MDSCR_EL1); +} + +static inline u64 ctxt_midr_el1(struct kvm_cpu_context *ctxt) +{ + struct kvm *kvm = kern_hyp_va(ctxt_to_vcpu(ctxt)->kvm); + + if (!(ctxt_is_guest(ctxt) && + test_bit(KVM_ARCH_FLAG_WRITABLE_IMP_ID_REGS, &kvm->arch.flags))) + return read_cpuid_id(); + + return kvm_read_vm_id_reg(kvm, SYS_MIDR_EL1); +} + +static inline void __sysreg_save_common_state(struct kvm_cpu_context *ctxt) +{ + *ctxt_mdscr_el1(ctxt) = read_sysreg(mdscr_el1); + + // POR_EL0 can affect uaccess, so must be saved/restored early. + if (ctxt_has_s1poe(ctxt)) + ctxt_sys_reg(ctxt, POR_EL0) = read_sysreg_s(SYS_POR_EL0); +} + +static inline void __sysreg_save_user_state(struct kvm_cpu_context *ctxt) +{ + ctxt_sys_reg(ctxt, TPIDR_EL0) = read_sysreg(tpidr_el0); + ctxt_sys_reg(ctxt, TPIDRRO_EL0) = read_sysreg(tpidrro_el0); +} + static inline void __sysreg_save_el1_state(struct kvm_cpu_context *ctxt) { ctxt_sys_reg(ctxt, SCTLR_EL1) = read_sysreg_el1(SYS_SCTLR); -- 2.39.5