From nobody Tue Dec 23 10:51:30 2025 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B961B2676C3 for ; Mon, 24 Mar 2025 17:33:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.74 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742837596; cv=none; b=B9muI3qRxrrYsVs6RUmm12wTV8iNHWyVN3Q1R//EttqaWWgPttVzgvoPmY+ajxRTElIVGoonNJKRD38Jlep0CnGtCD6A0hVv7loqkrDj0wliAZnObEX+HdBol80K5+NV30z7KYvz+b3bgT0jBSZKvSN9mOBb2uLuJzxdzIOb/SY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742837596; c=relaxed/simple; bh=xgxYVwZdjRquH478VTURKv/ZwPIL/P+KKLaH5KZ8A0k=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=R05MQgJnxFHm3fN+DhoqbBLe9ZCPyYn6HrVkOmi6/8oUygjBuv9zZIXFcUAKK8dCEEU/tNEFJ3n4SI/W28vRZkQK24cPufQzP25l4HnzI9/TTg16yVqLyeqyxRhHydM1GKLSLW8Zio/YZFgeVoyWF9MioTgV/ulk6qD7stbvabU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--mizhang.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=rYMaB95W; arc=none smtp.client-ip=209.85.216.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--mizhang.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="rYMaB95W" Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-3032ea03448so3599323a91.2 for ; Mon, 24 Mar 2025 10:33:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1742837593; x=1743442393; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=5OIbd6+hOx7hGMg1T3kEmCwLM9O3N837RBR3OmTqUzg=; b=rYMaB95WbcGG1k1CIUlndOliRt3vEQHamyedYYykG3bBU06zS++5geWA6MOkt8RXt9 lkbnjL2bSVN6B/BC3+aK7K3blAFEj6CqsBVcB3h1fs9qPCkNxQ91sTElP01qBuwLYXNQ yzYDKNEuKRlpnWnFYqXC5o9gnAPLS9O07+trxq6t9OEwf4rfxNypDdLhTrsd/eqP/w9w LwTEObju00+w2nVTEpsdGy87/Iguz0oT/XNS5GqIoSQdqQfO8mDy03KH1WLCBmA0ShF6 y0AtHmvptkceRfwIru9D9bbQ9dzqC57CzAd8/II/4CqO2BQgn4pPsHpBszqLeV7OISRl VyRQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742837593; x=1743442393; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=5OIbd6+hOx7hGMg1T3kEmCwLM9O3N837RBR3OmTqUzg=; b=X2foPd6tLZywo1EpCTlJTWTUjbt7Ryu3AEJBjC/ugvG63MOtDNDXBfabzIlD2zEkYt FlBAdct9FRZVVJ8GNuxSjj6j4GeP5FTFfzVcAEUjkddmeZS5DXJ/5ixgkZ5s3Wb9Tro1 5cRWaZFHzbw4xTDytRFIoTB89ui2rCckXwz4GwFXTsvwUZMMHHmiLc1K8YnMJc531icv N65/z1aF/8dt5tOLYx37L//BaJjeX30LJ6BmNJi0G33VwaHIHlI4tsrkaOhXJ70mCMRz ozTyQSKdaVgxta4TlNvt0el6Wy45zmsYveiYDi2IS0mJbr389i6Y0hLW84B79kQA77xs Xu8A== X-Forwarded-Encrypted: i=1; AJvYcCU7UoRE3EXyCcLMZNxlTSQ2xwYOCuG9C4UgWx6kkUP95aC+bhh9d3dXPmdF3KA9PssFNMlUgWZ7p1mE9IM=@vger.kernel.org X-Gm-Message-State: AOJu0YwSVlDj9w7phl8q5m91OJEnyjy3aNc7zDSdWllFNm2uS9cqoya6 3+WbHxJFTyfNDYuznTygFUzyjfCVUmvRa1WPI9vII4VrSX1hh3Ujk/kjJRwzuCtjH52MfN/dGRo abXaFoA== X-Google-Smtp-Source: AGHT+IEdo7ypzX77GetTJ9C36fdgW9oGowukok+4d1hBh9wD+ALdjl7qpWu1TMmZXtF4P0hSuyHVg9HGlwBC X-Received: from pjc7.prod.google.com ([2002:a17:90b:2f47:b0:2f9:e05f:187f]) (user=mizhang job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:4b10:b0:2ff:796b:4d05 with SMTP id 98e67ed59e1d1-3030fea7630mr23371014a91.11.1742837593268; Mon, 24 Mar 2025 10:33:13 -0700 (PDT) Reply-To: Mingwei Zhang Date: Mon, 24 Mar 2025 17:30:53 +0000 In-Reply-To: <20250324173121.1275209-1-mizhang@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250324173121.1275209-1-mizhang@google.com> X-Mailer: git-send-email 2.49.0.395.g12beb8f557-goog Message-ID: <20250324173121.1275209-14-mizhang@google.com> Subject: [PATCH v4 13/38] perf/x86/core: Plumb mediated PMU capability from x86_pmu to x86_pmu_cap From: Mingwei Zhang To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Sean Christopherson , Paolo Bonzini Cc: Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Liang@google.com, Kan , "H. Peter Anvin" , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, Mingwei Zhang , Yongwei Ma , Xiong Zhang , Dapeng Mi , Jim Mattson , Sandipan Das , Zide Chen , Eranian Stephane , Das Sandipan , Shukla Manali , Nikunj Dadhania Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Plumb mediated PMU capability to x86_pmu_cap in order to let any kernel entity such as KVM know that host PMU support mediated PMU mode and has the implementation. Signed-off-by: Mingwei Zhang --- arch/x86/events/core.c | 1 + arch/x86/include/asm/perf_event.h | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index 7c852ee3e217..7a792486d9fb 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -3112,6 +3112,7 @@ void perf_get_x86_pmu_capability(struct x86_pmu_capab= ility *cap) cap->events_mask =3D (unsigned int)x86_pmu.events_maskl; cap->events_mask_len =3D x86_pmu.events_mask_len; cap->pebs_ept =3D x86_pmu.pebs_ept; + cap->mediated =3D !!(pmu.capabilities & PERF_PMU_CAP_MEDIATED_VPMU); } EXPORT_SYMBOL_GPL(perf_get_x86_pmu_capability); =20 diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_= event.h index 0ba8d20f2d1d..3aee76f3316c 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -285,6 +285,7 @@ struct x86_pmu_capability { unsigned int events_mask; int events_mask_len; unsigned int pebs_ept :1; + unsigned int mediated :1; }; =20 /* --=20 2.49.0.395.g12beb8f557-goog