From patchwork Mon Sep 25 13:38:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 13397845 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 BD17DCE7A81 for ; Mon, 25 Sep 2023 13:39:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232152AbjIYNj5 (ORCPT ); Mon, 25 Sep 2023 09:39:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232195AbjIYNjy (ORCPT ); Mon, 25 Sep 2023 09:39:54 -0400 Received: from mail-pl1-x62f.google.com (mail-pl1-x62f.google.com [IPv6:2607:f8b0:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D42BD1A7 for ; Mon, 25 Sep 2023 06:39:47 -0700 (PDT) Received: by mail-pl1-x62f.google.com with SMTP id d9443c01a7336-1c61bde0b4bso14708675ad.3 for ; Mon, 25 Sep 2023 06:39:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1695649187; x=1696253987; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=/vUWcwNassqNthW+S+LkFt6P4jG1B8nw+IYC+PUr7yI=; b=O79L0dYOVuVFQ6UGfZRCQcFAs0hK2hMV4CZmHzPW11+ELCKGgxw8v5hItOUWGKtAmj 8tYgtTkjkOxAl7bBGBH1p6p+ZJTksHLGhNpEGmuPAVuV5ijy92+mW0qJP1H96+d8BAKu aClp1Wxnee236ftIzaaF/6Cast1qG0Eti5c3CVe3H6t4mLaIa8wwmOTztIxa+zDPmhsv GioAjMkY4j929WA8JCWidNPB0AJ35+Rt8phADamOAXJ1b5+2t4ttlqoq5aSwa0a1j0St Z+VkX9e/ILFECM7+tzJZZzVVkiDrmJsk1QZ9/HIhlSDn6k3omW5RtdPtHcEB35+YJXr5 Mf8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695649187; x=1696253987; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=/vUWcwNassqNthW+S+LkFt6P4jG1B8nw+IYC+PUr7yI=; b=C+PoOFptOcKZDvPVni7PNzoW/miyJTYrnmmWbDngLvtXiFINIU5pqt/mmW0l8aAa85 PvDJjonZGNDPDvQoBjRN+1z8aUQC17mqyO+WQOa+rPvWTinG0hBKNOX69hgs1e3IAKS1 Qb9Dun9ummxcoPdg5QYrzu0m0MZiz5SdmreOwAyFSV85tkTr5ZEe4GOMBIwIH1KR7T4Z q2XNW66z68NkMAUuiilwT0a5rzQTwmD7j+asgkUFx+q2gnKPTyK1SnI0FkgcknmzMn/n HpAH/aHkHMGpR0JKZYdl21c/SxfPukHLcjssERF4UndRRhOme5ByeVB+Wk2GbBrXANDc 9FsA== X-Gm-Message-State: AOJu0YzauWq7YeeMTWVYbAfvQ/G9D49rj93rbXlf43qbBs8OXuwbrRYw NREswNCQ4avfPu3M8sXYBw+9/Q== X-Google-Smtp-Source: AGHT+IHSOl9ki8QCBXo+uVtTVFpD8HahTf26vYb6+QGHrGWFkZ/UI6Ksnsz5GkQiW3yp4D+zsZYpGw== X-Received: by 2002:a17:902:c412:b0:1c5:b4a1:ff3 with SMTP id k18-20020a170902c41200b001c5b4a10ff3mr9924366plk.40.1695649186774; Mon, 25 Sep 2023 06:39:46 -0700 (PDT) Received: from anup-ubuntu-vm.localdomain ([103.97.165.210]) by smtp.gmail.com with ESMTPSA id p11-20020a170902eacb00b001c625d6ffccsm969433pld.129.2023.09.25.06.39.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Sep 2023 06:39:46 -0700 (PDT) From: Anup Patel To: Paolo Bonzini , Atish Patra , Palmer Dabbelt , Paul Walmsley , Conor Dooley , Rob Herring , Krzysztof Kozlowski , Shuah Khan Cc: Andrew Jones , Mayuresh Chitale , devicetree@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Anup Patel Subject: [PATCH v2 5/9] RISC-V: KVM: Allow XVentanaCondOps extension for Guest/VM Date: Mon, 25 Sep 2023 19:08:55 +0530 Message-Id: <20230925133859.1735879-6-apatel@ventanamicro.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230925133859.1735879-1-apatel@ventanamicro.com> References: <20230925133859.1735879-1-apatel@ventanamicro.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org We extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable XVentanaCondOps extension for Guest/VM. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones --- arch/riscv/include/uapi/asm/kvm.h | 1 + arch/riscv/kvm/vcpu_onereg.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index b1baf6f096a3..e030c12c7dfc 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -138,6 +138,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZIFENCEI, KVM_RISCV_ISA_EXT_ZIHPM, KVM_RISCV_ISA_EXT_SMSTATEEN, + KVM_RISCV_ISA_EXT_XVENTANACONDOPS, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index 388599fcf684..17a847a1114b 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -40,6 +40,7 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(SVINVAL), KVM_ISA_EXT_ARR(SVNAPOT), KVM_ISA_EXT_ARR(SVPBMT), + KVM_ISA_EXT_ARR(XVENTANACONDOPS), KVM_ISA_EXT_ARR(ZBA), KVM_ISA_EXT_ARR(ZBB), KVM_ISA_EXT_ARR(ZBS), @@ -89,6 +90,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_SSTC: case KVM_RISCV_ISA_EXT_SVINVAL: case KVM_RISCV_ISA_EXT_SVNAPOT: + case KVM_RISCV_ISA_EXT_XVENTANACONDOPS: case KVM_RISCV_ISA_EXT_ZBA: case KVM_RISCV_ISA_EXT_ZBB: case KVM_RISCV_ISA_EXT_ZBS: