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 CA80FC001B5 for ; Fri, 2 Sep 2022 17:02:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=1Ww+cSg5LrX9Sz61veBdt+YaQXvE4XWV44hu35l4VpE=; b=bJkzUKasvTM249 Zf7k3Cj0zZwR7eyI+DafLJqQ3VVgQzYufHmv63zpb2kbJPqE7Xsac8C5EEv+gECZVJrvwfzG+e4t0 Gwu2KlooP8+a5l9p3Y8Nd8OIZrdw5dfSP45BdP452c/3MYCqEK3ixT3D+OpJr3d1udJjYMIllmG+I AZOcsdeFxGTCepPgP7P9TJlL3Qz4icvq8cjkSWo835PMUfAYu0fKJOptX+B8l2iHeR7jIoROOyWsd 3WKkl70xfmZRvw8OfnRCMm/hbrz0D3PbBXHRcPVpetMbRKn7mX2+YAgqULak0NgnjH0UE6RP8rPjg xL4iKVTkcLmda9ynB3QQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oUA3W-007bc4-CA; Fri, 02 Sep 2022 17:02:10 +0000 Received: from mail-pg1-x52b.google.com ([2607:f8b0:4864:20::52b]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oUA3U-007bRs-5B for linux-riscv@lists.infradead.org; Fri, 02 Sep 2022 17:02:09 +0000 Received: by mail-pg1-x52b.google.com with SMTP id r69so2471436pgr.2 for ; Fri, 02 Sep 2022 10:01:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=IdtU6srtyQUAra4AuQSnCBSrs6xPYmqcvUoxT84dqvs=; b=h6X6Jml+DFCgSlcblU7ih6G2hbgk9gPVz4m8qUHc5LeRkRfdc+Q90oEQPsOKEjx4mX 75o8Q8QOeg/L1reH9+QfSoZQQPeeX7bKiQSpwwL2uNar65Sv7Os6bFo5qDFeKG7deg3X WyPv5UB0Ex2xD6K1KBZn7ViHcxlgBE4QdTV7GmDGFSyqOhh9RCLpk2lEaVYw7KAUUgQn tYHdVrGbqDc5AQJXZ4EOPCSu2NmWdpOHAOEWgfdiZN+9IJH8ekLSrHfAbMNLCsd05fJQ jAau0uoMXjVcdGhajRk9xw6tR9UdZ4n++pL8mQJH+NPbKOcdq1xDwN11izhb+qDSGh1J XPmw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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; bh=IdtU6srtyQUAra4AuQSnCBSrs6xPYmqcvUoxT84dqvs=; b=BmklUqdno3jtAzt8DQWPxAWvqpkSRjonbrbuWs6ERvMT6evZgfCyw/wVhbc6iFGfce E+IkG4GZnuUBdmYP0gO5dEB/WqGgrwZQJEd71+6OQBMhUE0+jo3TCnlgV8hSkanzlMYa kANQrzszqy4maHKvBJUd5megEU/IUjlYYShmSqla8/uJmkopyxBeN3eUxy3ELjguy4Ji kojvGBb+Pit36HhSloJ2jEiYH/sqNib5uD/4ih0g2jWBZjUDRCaJULgB2uLFijlnuE7t C5WL+TXgpvEfvpWwB+7dLwEm794eXjbh9KmMqsfL41eAzOtdS+WNoPv/IMvb1lcrkieB zDxg== X-Gm-Message-State: ACgBeo0sf68K2QpyR2Wnmao8DPEzk0/G1kjlrWkAmFIM+Rfqhhy6xyCK 1BzkFYup4d89oG47X56AQMXxqw== X-Google-Smtp-Source: AA6agR6s8PyY3S+hAOSutXy8mJL01o/t3sjUFMZZYl79YgZSuqG1Ot/bMxugG/CWnUDsB4CVdyQgLA== X-Received: by 2002:a05:6a00:8d0:b0:53b:2cbd:fab6 with SMTP id s16-20020a056a0008d000b0053b2cbdfab6mr6003300pfu.3.1662138115408; Fri, 02 Sep 2022 10:01:55 -0700 (PDT) Received: from anup-ubuntu64-vm.. ([171.76.83.155]) by smtp.gmail.com with ESMTPSA id w10-20020a65534a000000b0043014f9a4c9sm1638800pgr.93.2022.09.02.10.01.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Sep 2022 10:01:54 -0700 (PDT) From: Anup Patel To: Paolo Bonzini , Atish Patra Cc: Palmer Dabbelt , Paul Walmsley , Anup Patel , kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Anup Patel Subject: [PATCH 3/3] RISC-V: KVM: Allow Guest use Svinval extension Date: Fri, 2 Sep 2022 22:31:31 +0530 Message-Id: <20220902170131.32334-4-apatel@ventanamicro.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220902170131.32334-1-apatel@ventanamicro.com> References: <20220902170131.32334-1-apatel@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220902_100208_223886_826BE8BC X-CRM114-Status: UNSURE ( 8.38 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org We should advertise Svinval ISA extension to KVM user-space whenever host supports it. This will allow KVM user-space (i.e. QEMU or KVMTOOL) to pass on this information to Guest via ISA string. Signed-off-by: Anup Patel --- arch/riscv/include/uapi/asm/kvm.h | 1 + arch/riscv/kvm/vcpu.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 7351417afd62..b6770ee08872 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -98,6 +98,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_M, KVM_RISCV_ISA_EXT_SVPBMT, KVM_RISCV_ISA_EXT_SSTC, + KVM_RISCV_ISA_EXT_SVINVAL, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c index d0f08d5b4282..901bb5c0cb50 100644 --- a/arch/riscv/kvm/vcpu.c +++ b/arch/riscv/kvm/vcpu.c @@ -53,6 +53,7 @@ static const unsigned long kvm_isa_ext_arr[] = { RISCV_ISA_EXT_m, RISCV_ISA_EXT_SVPBMT, RISCV_ISA_EXT_SSTC, + RISCV_ISA_EXT_SVINVAL, }; static unsigned long kvm_riscv_vcpu_base2isa_ext(unsigned long base_ext) @@ -87,6 +88,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_I: case KVM_RISCV_ISA_EXT_M: case KVM_RISCV_ISA_EXT_SSTC: + case KVM_RISCV_ISA_EXT_SVINVAL: return false; default: break; -- 2.34.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv