From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by smtp.lore.kernel.org (Postfix) with ESMTP id 290B5C433FE for ; Thu, 19 May 2022 13:48:09 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id DDAE14B4C1; Thu, 19 May 2022 09:48:08 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@kernel.org Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id nf26tgq4hd+j; Thu, 19 May 2022 09:48:07 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id C49C14B4C2; Thu, 19 May 2022 09:48:07 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 6504D4B45F for ; Thu, 19 May 2022 09:48:06 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mfpMDl8Q4fQe for ; Thu, 19 May 2022 09:48:05 -0400 (EDT) Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id DC5A14B3AD for ; Thu, 19 May 2022 09:48:04 -0400 (EDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id A45E4B8235B; Thu, 19 May 2022 13:48:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D4DACC36AE3; Thu, 19 May 2022 13:47:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652968082; bh=/Mo4K/TZgcyHThL34GJtkzmcE7F2fxw8lRcqi2rTW/c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lZctvavEBzQ00kZTcii/cmXssJ+6ByUMt0ooYB9x1ORwmzX45NFefcdnDcrDq00F3 8AUjJ3/5aQHqluBsoZAe2pb/lrKTqMGWEV1HGuQaUq2ta0BAlykMFyaBdVDuRcD4Oy UWTk3wBiKP9OguhQsQK1r3WxxQRCcQp7BDFBsDO4pxIhoI4cr0nF2xF67J0ne5r7Cl CVqHMqRNqN0zkRVfrQmTEojUH4MWxc6tBUzJ6EKZxn3pEUs8neqIjbPrywBgK2QNFf RsJKYFDUThn20OmDAG98aF1azY8/pjt5MOK3eJ6zQD7xU/u1I01BzedjWJU6qbOc1x Q6JDZvF3zpbhw== From: Will Deacon To: kvmarm@lists.cs.columbia.edu Subject: [PATCH 85/89] KVM: arm64: Document the KVM/arm64-specific calls in hypercalls.rst Date: Thu, 19 May 2022 14:42:00 +0100 Message-Id: <20220519134204.5379-86-will@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220519134204.5379-1-will@kernel.org> References: <20220519134204.5379-1-will@kernel.org> MIME-Version: 1.0 Cc: Marc Zyngier , kernel-team@android.com, kvm@vger.kernel.org, Andy Lutomirski , linux-arm-kernel@lists.infradead.org, Michael Roth , Catalin Marinas , Chao Peng , Will Deacon X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu KVM/arm64 makes use of the SMCCC "Vendor Specific Hypervisor Service Call Range" to expose KVM-specific hypercalls to guests in a discoverable and extensible fashion. Document the existence of this interface and the discovery hypercall. Signed-off-by: Will Deacon --- Documentation/virt/kvm/arm/hypercalls.rst | 46 +++++++++++++++++++++++ Documentation/virt/kvm/arm/index.rst | 1 + 2 files changed, 47 insertions(+) create mode 100644 Documentation/virt/kvm/arm/hypercalls.rst diff --git a/Documentation/virt/kvm/arm/hypercalls.rst b/Documentation/virt/kvm/arm/hypercalls.rst new file mode 100644 index 000000000000..17be111f493f --- /dev/null +++ b/Documentation/virt/kvm/arm/hypercalls.rst @@ -0,0 +1,46 @@ +.. SPDX-License-Identifier: GPL-2.0 + +=============================================== +KVM/arm64-specific hypercalls exposed to guests +=============================================== + +This file documents the KVM/arm64-specific hypercalls which may be +exposed by KVM/arm64 to guest operating systems. These hypercalls are +issued using the HVC instruction according to version 1.1 of the Arm SMC +Calling Convention (DEN0028/C): + +https://developer.arm.com/docs/den0028/c + +All KVM/arm64-specific hypercalls are allocated within the "Vendor +Specific Hypervisor Service Call" range with a UID of +``28b46fb6-2ec5-11e9-a9ca-4b564d003a74``. This UID should be queried by the +guest using the standard "Call UID" function for the service range in +order to determine that the KVM/arm64-specific hypercalls are available. + +``ARM_SMCCC_VENDOR_HYP_KVM_FEATURES_FUNC_ID`` +--------------------------------------------- + +Provides a discovery mechanism for other KVM/arm64 hypercalls. + ++---------------------+-------------------------------------------------------------+ +| Presence: | Mandatory for the KVM/arm64 UID | ++---------------------+-------------------------------------------------------------+ +| Calling convention: | HVC32 | ++---------------------+----------+--------------------------------------------------+ +| Function ID: | (uint32) | 0x86000000 | ++---------------------+----------+--------------------------------------------------+ +| Arguments: | None | ++---------------------+----------+----+---------------------------------------------+ +| Return Values: | (uint32) | R0 | Bitmap of available function numbers 0-31 | +| +----------+----+---------------------------------------------+ +| | (uint32) | R1 | Bitmap of available function numbers 32-63 | +| +----------+----+---------------------------------------------+ +| | (uint32) | R2 | Bitmap of available function numbers 64-95 | +| +----------+----+---------------------------------------------+ +| | (uint32) | R3 | Bitmap of available function numbers 96-127 | ++---------------------+----------+----+---------------------------------------------+ + +``ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID`` +---------------------------------------- + +See ptp_kvm.rst diff --git a/Documentation/virt/kvm/arm/index.rst b/Documentation/virt/kvm/arm/index.rst index 78a9b670aafe..b4067da3fcb6 100644 --- a/Documentation/virt/kvm/arm/index.rst +++ b/Documentation/virt/kvm/arm/index.rst @@ -8,6 +8,7 @@ ARM :maxdepth: 2 hyp-abi + hypercalls psci pvtime ptp_kvm -- 2.36.1.124.g0e6072fb45-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C08DC433FE for ; Thu, 19 May 2022 13:49:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238932AbiESNta (ORCPT ); Thu, 19 May 2022 09:49:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239219AbiESNt1 (ORCPT ); Thu, 19 May 2022 09:49:27 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9E2993FBDA for ; Thu, 19 May 2022 06:49:11 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id DB065617D2 for ; Thu, 19 May 2022 13:48:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D4DACC36AE3; Thu, 19 May 2022 13:47:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652968082; bh=/Mo4K/TZgcyHThL34GJtkzmcE7F2fxw8lRcqi2rTW/c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lZctvavEBzQ00kZTcii/cmXssJ+6ByUMt0ooYB9x1ORwmzX45NFefcdnDcrDq00F3 8AUjJ3/5aQHqluBsoZAe2pb/lrKTqMGWEV1HGuQaUq2ta0BAlykMFyaBdVDuRcD4Oy UWTk3wBiKP9OguhQsQK1r3WxxQRCcQp7BDFBsDO4pxIhoI4cr0nF2xF67J0ne5r7Cl CVqHMqRNqN0zkRVfrQmTEojUH4MWxc6tBUzJ6EKZxn3pEUs8neqIjbPrywBgK2QNFf RsJKYFDUThn20OmDAG98aF1azY8/pjt5MOK3eJ6zQD7xU/u1I01BzedjWJU6qbOc1x Q6JDZvF3zpbhw== From: Will Deacon To: kvmarm@lists.cs.columbia.edu Cc: Will Deacon , Ard Biesheuvel , Sean Christopherson , Alexandru Elisei , Andy Lutomirski , Catalin Marinas , James Morse , Chao Peng , Quentin Perret , Suzuki K Poulose , Michael Roth , Mark Rutland , Fuad Tabba , Oliver Upton , Marc Zyngier , kernel-team@android.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 85/89] KVM: arm64: Document the KVM/arm64-specific calls in hypercalls.rst Date: Thu, 19 May 2022 14:42:00 +0100 Message-Id: <20220519134204.5379-86-will@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220519134204.5379-1-will@kernel.org> References: <20220519134204.5379-1-will@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org KVM/arm64 makes use of the SMCCC "Vendor Specific Hypervisor Service Call Range" to expose KVM-specific hypercalls to guests in a discoverable and extensible fashion. Document the existence of this interface and the discovery hypercall. Signed-off-by: Will Deacon --- Documentation/virt/kvm/arm/hypercalls.rst | 46 +++++++++++++++++++++++ Documentation/virt/kvm/arm/index.rst | 1 + 2 files changed, 47 insertions(+) create mode 100644 Documentation/virt/kvm/arm/hypercalls.rst diff --git a/Documentation/virt/kvm/arm/hypercalls.rst b/Documentation/virt/kvm/arm/hypercalls.rst new file mode 100644 index 000000000000..17be111f493f --- /dev/null +++ b/Documentation/virt/kvm/arm/hypercalls.rst @@ -0,0 +1,46 @@ +.. SPDX-License-Identifier: GPL-2.0 + +=============================================== +KVM/arm64-specific hypercalls exposed to guests +=============================================== + +This file documents the KVM/arm64-specific hypercalls which may be +exposed by KVM/arm64 to guest operating systems. These hypercalls are +issued using the HVC instruction according to version 1.1 of the Arm SMC +Calling Convention (DEN0028/C): + +https://developer.arm.com/docs/den0028/c + +All KVM/arm64-specific hypercalls are allocated within the "Vendor +Specific Hypervisor Service Call" range with a UID of +``28b46fb6-2ec5-11e9-a9ca-4b564d003a74``. This UID should be queried by the +guest using the standard "Call UID" function for the service range in +order to determine that the KVM/arm64-specific hypercalls are available. + +``ARM_SMCCC_VENDOR_HYP_KVM_FEATURES_FUNC_ID`` +--------------------------------------------- + +Provides a discovery mechanism for other KVM/arm64 hypercalls. + ++---------------------+-------------------------------------------------------------+ +| Presence: | Mandatory for the KVM/arm64 UID | ++---------------------+-------------------------------------------------------------+ +| Calling convention: | HVC32 | ++---------------------+----------+--------------------------------------------------+ +| Function ID: | (uint32) | 0x86000000 | ++---------------------+----------+--------------------------------------------------+ +| Arguments: | None | ++---------------------+----------+----+---------------------------------------------+ +| Return Values: | (uint32) | R0 | Bitmap of available function numbers 0-31 | +| +----------+----+---------------------------------------------+ +| | (uint32) | R1 | Bitmap of available function numbers 32-63 | +| +----------+----+---------------------------------------------+ +| | (uint32) | R2 | Bitmap of available function numbers 64-95 | +| +----------+----+---------------------------------------------+ +| | (uint32) | R3 | Bitmap of available function numbers 96-127 | ++---------------------+----------+----+---------------------------------------------+ + +``ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID`` +---------------------------------------- + +See ptp_kvm.rst diff --git a/Documentation/virt/kvm/arm/index.rst b/Documentation/virt/kvm/arm/index.rst index 78a9b670aafe..b4067da3fcb6 100644 --- a/Documentation/virt/kvm/arm/index.rst +++ b/Documentation/virt/kvm/arm/index.rst @@ -8,6 +8,7 @@ ARM :maxdepth: 2 hyp-abi + hypercalls psci pvtime ptp_kvm -- 2.36.1.124.g0e6072fb45-goog From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 85B43C433EF for ; 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Thu, 19 May 2022 14:48:16 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nrgVZ-0077gL-2G for linux-arm-kernel@lists.infradead.org; Thu, 19 May 2022 13:48:07 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id A45E4B8235B; Thu, 19 May 2022 13:48:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D4DACC36AE3; Thu, 19 May 2022 13:47:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652968082; bh=/Mo4K/TZgcyHThL34GJtkzmcE7F2fxw8lRcqi2rTW/c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lZctvavEBzQ00kZTcii/cmXssJ+6ByUMt0ooYB9x1ORwmzX45NFefcdnDcrDq00F3 8AUjJ3/5aQHqluBsoZAe2pb/lrKTqMGWEV1HGuQaUq2ta0BAlykMFyaBdVDuRcD4Oy UWTk3wBiKP9OguhQsQK1r3WxxQRCcQp7BDFBsDO4pxIhoI4cr0nF2xF67J0ne5r7Cl CVqHMqRNqN0zkRVfrQmTEojUH4MWxc6tBUzJ6EKZxn3pEUs8neqIjbPrywBgK2QNFf RsJKYFDUThn20OmDAG98aF1azY8/pjt5MOK3eJ6zQD7xU/u1I01BzedjWJU6qbOc1x Q6JDZvF3zpbhw== From: Will Deacon To: kvmarm@lists.cs.columbia.edu Cc: Will Deacon , Ard Biesheuvel , Sean Christopherson , Alexandru Elisei , Andy Lutomirski , Catalin Marinas , James Morse , Chao Peng , Quentin Perret , Suzuki K Poulose , Michael Roth , Mark Rutland , Fuad Tabba , Oliver Upton , Marc Zyngier , kernel-team@android.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 85/89] KVM: arm64: Document the KVM/arm64-specific calls in hypercalls.rst Date: Thu, 19 May 2022 14:42:00 +0100 Message-Id: <20220519134204.5379-86-will@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220519134204.5379-1-will@kernel.org> References: <20220519134204.5379-1-will@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220519_064805_475885_2ED14FF8 X-CRM114-Status: GOOD ( 15.62 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org KVM/arm64 makes use of the SMCCC "Vendor Specific Hypervisor Service Call Range" to expose KVM-specific hypercalls to guests in a discoverable and extensible fashion. Document the existence of this interface and the discovery hypercall. Signed-off-by: Will Deacon --- Documentation/virt/kvm/arm/hypercalls.rst | 46 +++++++++++++++++++++++ Documentation/virt/kvm/arm/index.rst | 1 + 2 files changed, 47 insertions(+) create mode 100644 Documentation/virt/kvm/arm/hypercalls.rst diff --git a/Documentation/virt/kvm/arm/hypercalls.rst b/Documentation/virt/kvm/arm/hypercalls.rst new file mode 100644 index 000000000000..17be111f493f --- /dev/null +++ b/Documentation/virt/kvm/arm/hypercalls.rst @@ -0,0 +1,46 @@ +.. SPDX-License-Identifier: GPL-2.0 + +=============================================== +KVM/arm64-specific hypercalls exposed to guests +=============================================== + +This file documents the KVM/arm64-specific hypercalls which may be +exposed by KVM/arm64 to guest operating systems. These hypercalls are +issued using the HVC instruction according to version 1.1 of the Arm SMC +Calling Convention (DEN0028/C): + +https://developer.arm.com/docs/den0028/c + +All KVM/arm64-specific hypercalls are allocated within the "Vendor +Specific Hypervisor Service Call" range with a UID of +``28b46fb6-2ec5-11e9-a9ca-4b564d003a74``. This UID should be queried by the +guest using the standard "Call UID" function for the service range in +order to determine that the KVM/arm64-specific hypercalls are available. + +``ARM_SMCCC_VENDOR_HYP_KVM_FEATURES_FUNC_ID`` +--------------------------------------------- + +Provides a discovery mechanism for other KVM/arm64 hypercalls. + ++---------------------+-------------------------------------------------------------+ +| Presence: | Mandatory for the KVM/arm64 UID | ++---------------------+-------------------------------------------------------------+ +| Calling convention: | HVC32 | ++---------------------+----------+--------------------------------------------------+ +| Function ID: | (uint32) | 0x86000000 | ++---------------------+----------+--------------------------------------------------+ +| Arguments: | None | ++---------------------+----------+----+---------------------------------------------+ +| Return Values: | (uint32) | R0 | Bitmap of available function numbers 0-31 | +| +----------+----+---------------------------------------------+ +| | (uint32) | R1 | Bitmap of available function numbers 32-63 | +| +----------+----+---------------------------------------------+ +| | (uint32) | R2 | Bitmap of available function numbers 64-95 | +| +----------+----+---------------------------------------------+ +| | (uint32) | R3 | Bitmap of available function numbers 96-127 | ++---------------------+----------+----+---------------------------------------------+ + +``ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID`` +---------------------------------------- + +See ptp_kvm.rst diff --git a/Documentation/virt/kvm/arm/index.rst b/Documentation/virt/kvm/arm/index.rst index 78a9b670aafe..b4067da3fcb6 100644 --- a/Documentation/virt/kvm/arm/index.rst +++ b/Documentation/virt/kvm/arm/index.rst @@ -8,6 +8,7 @@ ARM :maxdepth: 2 hyp-abi + hypercalls psci pvtime ptp_kvm -- 2.36.1.124.g0e6072fb45-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel