From patchwork Fri Mar 29 13:00:26 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dave Martin X-Patchwork-Id: 10877013 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D5C6D15AC for ; Fri, 29 Mar 2019 13:01:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BC80F29186 for ; Fri, 29 Mar 2019 13:01:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B9A3029297; Fri, 29 Mar 2019 13:01:47 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4F93529188 for ; Fri, 29 Mar 2019 13:01:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=fNx7GG2xdXvTj6ciu5RBw0Rk0Pb4gPFJF3mDnMrDHqA=; b=WjkGKZR7z/WAJizbSmQVSExpGe kK+lQDBFA1PNyUEdr3Joc3iEh2yBBo9OUhxtjnQw3+EBXouuer7XvJq8pZlyLeievycQLVkDmoiPe Sg48EhMNw644/Ai/ZeqrMGgqp3wggLCnGCFdsRdatmFCc1K0ufktcNll8eOMEqv5F4hYRuZ0RMEEg 14V1igUGa2zar5FsQtHlH1B2wXKUrU9G1kMjmV7csOgDV6NTXB1V8ovK16XEbukTH/v88PthGnIUS HHPbhmvi1lATrrt7iMPipvBthNiXiXFnHDsrb/VbLQKbdNiWYTH4zJFqnQw5oA3T+mImVsgmB07WW VEUdtnCg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h9r8j-0003a1-SO; Fri, 29 Mar 2019 13:01:45 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h9r8g-0003Za-QH for linux-arm-kernel@lists.infradead.org; Fri, 29 Mar 2019 13:01:44 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 402A3A78; Fri, 29 Mar 2019 06:01:42 -0700 (PDT) Received: from e103592.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 4B3213F575; Fri, 29 Mar 2019 06:01:40 -0700 (PDT) From: Dave Martin To: kvmarm@lists.cs.columbia.edu Subject: [PATCH v7 01/27] KVM: Documentation: Document arm64 core registers in detail Date: Fri, 29 Mar 2019 13:00:26 +0000 Message-Id: <1553864452-15080-2-git-send-email-Dave.Martin@arm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1553864452-15080-1-git-send-email-Dave.Martin@arm.com> References: <1553864452-15080-1-git-send-email-Dave.Martin@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190329_060142_862595_08087DD1 X-CRM114-Status: GOOD ( 10.68 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Okamoto Takayuki , Christoffer Dall , Ard Biesheuvel , Marc Zyngier , Catalin Marinas , Will Deacon , Zhang Lei , Julien Grall , =?utf-8?q?Alex_Benn=C3=A9e?= , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Since the the sizes of individual members of the core arm64 registers vary, the list of register encodings that make sense is not a simple linear sequence. To clarify which encodings to use, this patch adds a brief list to the documentation. Signed-off-by: Dave Martin Reviewed-by: Julien Grall Reviewed-by: Peter Maydell Reviewed-by: Alex Bennée --- Documentation/virtual/kvm/api.txt | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 7de9eee..2d4f7ce 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2107,6 +2107,30 @@ contains elements ranging from 32 to 128 bits. The index is a 32bit value in the kvm_regs structure seen as a 32bit array. 0x60x0 0000 0010 +Specifically: + Encoding Register Bits kvm_regs member +---------------------------------------------------------------- + 0x6030 0000 0010 0000 X0 64 regs.regs[0] + 0x6030 0000 0010 0002 X1 64 regs.regs[1] + ... + 0x6030 0000 0010 003c X30 64 regs.regs[30] + 0x6030 0000 0010 003e SP 64 regs.sp + 0x6030 0000 0010 0040 PC 64 regs.pc + 0x6030 0000 0010 0042 PSTATE 64 regs.pstate + 0x6030 0000 0010 0044 SP_EL1 64 sp_el1 + 0x6030 0000 0010 0046 ELR_EL1 64 elr_el1 + 0x6030 0000 0010 0048 SPSR_EL1 64 spsr[KVM_SPSR_EL1] (alias SPSR_SVC) + 0x6030 0000 0010 004a SPSR_ABT 64 spsr[KVM_SPSR_ABT] + 0x6030 0000 0010 004c SPSR_UND 64 spsr[KVM_SPSR_UND] + 0x6030 0000 0010 004e SPSR_IRQ 64 spsr[KVM_SPSR_IRQ] + 0x6060 0000 0010 0050 SPSR_FIQ 64 spsr[KVM_SPSR_FIQ] + 0x6040 0000 0010 0054 V0 128 fp_regs.vregs[0] + 0x6040 0000 0010 0058 V1 128 fp_regs.vregs[1] + ... + 0x6040 0000 0010 00d0 V31 128 fp_regs.vregs[31] + 0x6020 0000 0010 00d4 FPSR 32 fp_regs.fpsr + 0x6020 0000 0010 00d5 FPCR 32 fp_regs.fpcr + arm64 CCSIDR registers are demultiplexed by CSSELR value: 0x6020 0000 0011 00