From patchwork Thu Sep 9 01:38:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raghavendra Rao Ananta X-Patchwork-Id: 12482213 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 07FF2C433F5 for ; Thu, 9 Sep 2021 01:39:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E669360525 for ; Thu, 9 Sep 2021 01:39:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349876AbhIIBkX (ORCPT ); Wed, 8 Sep 2021 21:40:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41748 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242112AbhIIBkE (ORCPT ); Wed, 8 Sep 2021 21:40:04 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 32A1FC0613A3 for ; Wed, 8 Sep 2021 18:38:45 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id f8-20020a2585480000b02905937897e3daso436915ybn.2 for ; Wed, 08 Sep 2021 18:38:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=joYYrt7hpuPfUeQcd44dEnmpKJRkC3m+olCPcRklPKY=; b=FmT4tXPeRDgw2DsrBZpZGU6PcjTlqMTB9wZqCZm9tFBuL4YGumdgIw8m9nJpGy7K2o QYsOw8LRgRYm95W4lSQlPjO7sHUsJHvmCf//Z9HkzC5WFE0ltOxtgtruZBHWU5+lyW8d tyISweHmsA2pL8jnZ1XopsISmcAGv1TGUh3i1sOmjVR+89zSpnjVbubTD5YxqU6axujR iC5Bo6uEchxMhU7sTZonLg1PKJy5nk4TN+T3O3lRQY+zvf8akm5MfKalvVWOHQh+ZZZh xa6NDR8lw9UzwQzVVyNZ4oE7mAM9CccSUMU4oq2kLeew6YO2bKG9NmIZqb2LZBM5sUaT cSog== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=joYYrt7hpuPfUeQcd44dEnmpKJRkC3m+olCPcRklPKY=; b=x7Q/gjoaVOtaW8AzbkMLnCdIzWLj6iJgJlkIhaN2U6qUN+aqaUrD02Y+Y05ruOYEzF jqjs0KX/zVRzWp4A2wumm4DvgswVmq5/OO9j3wY/sNB7FliI5Hl80odbxPOLEXcKq7RH m3zqqlhOaUXm4V8ktwaXcFIKNrliNlmIu8gvVyy3DK/M57jO8AK4R1zSrOSN2qJAXvMO /8zJtnAv1ri1JwQsIeyFvMFyu19RWIqE54VqTIUgXmaG/58dlwi1jTbJgZQmBpoOz5uy zbtpEPIo9mLYIJWdyJ4kaclWoJGN99tCzadJ5iwA/GZTLm5Jrs+M+2gvYZA8xTgFkqQr 7ePA== X-Gm-Message-State: AOAM533k0N/yMjEEvaUAMku5ZCrqQ0U842yqeZSWh/gP59gRdggTgm1T e+HSnBVIaGTJKeC1yVBjYSSNSrhZdTee X-Google-Smtp-Source: ABdhPJwFC/OW1Z5F2EdPKG+1rynUG9GSXEW3pl0UpRo9goR7t0bNT4MLjGR/06vsJCUHuxOMHJCWVlVpiEKi X-Received: from rananta-virt.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:1bcc]) (user=rananta job=sendgmr) by 2002:a25:3894:: with SMTP id f142mr565481yba.464.1631151524424; Wed, 08 Sep 2021 18:38:44 -0700 (PDT) Date: Thu, 9 Sep 2021 01:38:08 +0000 In-Reply-To: <20210909013818.1191270-1-rananta@google.com> Message-Id: <20210909013818.1191270-9-rananta@google.com> Mime-Version: 1.0 References: <20210909013818.1191270-1-rananta@google.com> X-Mailer: git-send-email 2.33.0.153.gba50c8fa24-goog Subject: [PATCH v4 08/18] KVM: arm64: selftests: Add support to disable and enable local IRQs From: Raghavendra Rao Ananta To: Paolo Bonzini , Marc Zyngier , Andrew Jones , James Morse , Alexandru Elisei , Suzuki K Poulose Cc: Catalin Marinas , Will Deacon , Peter Shier , Ricardo Koller , Oliver Upton , Reiji Watanabe , Jing Zhang , Raghavendra Rao Anata , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Add functions local_irq_enable() and local_irq_disable() to enable and disable the IRQs from the guest, respectively. Signed-off-by: Raghavendra Rao Ananta Reviewed-by: Oliver Upton Reviewed-by: Andrew Jones --- .../testing/selftests/kvm/include/aarch64/processor.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/testing/selftests/kvm/include/aarch64/processor.h b/tools/testing/selftests/kvm/include/aarch64/processor.h index 166d273ad715..b6088c3c67a3 100644 --- a/tools/testing/selftests/kvm/include/aarch64/processor.h +++ b/tools/testing/selftests/kvm/include/aarch64/processor.h @@ -184,4 +184,14 @@ static __always_inline u32 __raw_readl(const volatile void *addr) #define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c));}) #define readl(c) ({ u32 __v = readl_relaxed(c); __iormb(__v); __v; }) +static inline void local_irq_enable(void) +{ + asm volatile("msr daifclr, #3" : : : "memory"); +} + +static inline void local_irq_disable(void) +{ + asm volatile("msr daifset, #3" : : : "memory"); +} + #endif /* SELFTEST_KVM_PROCESSOR_H */