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 236FEC43458 for ; Wed, 1 Jul 2026 08:49:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=S8V8xtoKAqPlqqdP66L19gg4AeWHREfPI94nLKFh6Tk=; b=vRWgGWTBrEAYx1cXxCGhlQhdT7 Gj1+pXtCLxAiYba4UcotxKa5zkXAuU7rmFc5r4UXDf8LmLEo1ZqIrqzBTwV4xfvgMTcQ7fqWqfzXs UNZeAXLxi7Tw3YTpEbsgV8QK3yVml1+2BdlwS4QuoWF54mqrW3Ewrygh6tvX6VO/RJzT0P9O8Ftyb mbrJQLzs5Skdbt92KMK/IZU1t6BomeBHDwF3rl/I0wAavxcpBgDUrJ7TzmAd4+RBrSyvvKpGjk0Q/ 4/dTWOw/cQmXqGInq8LoEdMryW7Locn3PqnBTXKG6bshDieOLQD2c+XFqZV6RWdfQnmwcfPQl/oWg MdqdbzFg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1weqd2-000000016Mf-3aTl; Wed, 01 Jul 2026 08:49:08 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1weqd2-000000016If-00K0 for linux-arm-kernel@bombadil.infradead.org; Wed, 01 Jul 2026 08:49:08 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Cc:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Sender:Reply-To:Content-ID:Content-Description; bh=S8V8xtoKAqPlqqdP66L19gg4AeWHREfPI94nLKFh6Tk=; b=QqNC8BpCPq7Tq85dEFVE8KfcAk 3T8s0PBmrIO3/QXMKfXhfwzMQ4j8iKm8pZJPeNU8cgeVaQLwWNe4hxJDLXn/suYYbLU1XJ4R3gG9D 8Kk5QMb6VSNCW6it0sy5CTXM8aif4yTiHC5mE+k7T6vFlta2RrlTjvAZei3oQc8DeDTXMeeej+wzn s43S5UjAZgQsW40fF1RwtRZ+NhPsEZps7ya2D0YVNLsjydgrUbAEXsK1Mta1+O2BN+hi7nzIZH+8E 8g3xUUFwdXuJfIN3SZV7tAtF0PERp1vdcUAYs0DAPP4bVShZSkLIBYSB0LeexTSOMY5P+xZVARLWn JG/QPpog==; Received: from out-188.mta0.migadu.com ([2001:41d0:1004:224b::bc]) by desiato.infradead.org with esmtps (Exim 4.99.2 #2 (Red Hat Linux)) id 1weqcv-00000002Wyq-44vl for linux-arm-kernel@lists.infradead.org; Wed, 01 Jul 2026 08:49:06 +0000 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1782895740; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=S8V8xtoKAqPlqqdP66L19gg4AeWHREfPI94nLKFh6Tk=; b=uiLH+Uh9dSNQoPC8h35NhiprnhamkymjKrSZfhp5i7VWRDdYEQfxzf1+izxnVLZHjMPFdW Irb4Biq7+mvnafDeeOOeK+cLN8zFyvXbp+2h/MBYrmuZn6bRvcgDio4rKEq1dCP5yqytrR boC+/qSkoW2lzlnlYwySyWjT3Gviwc8= From: Atish Patra Date: Wed, 01 Jul 2026 01:47:09 -0700 Subject: [PATCH v8 21/22] TEST(do-not-upstream): fake qemu-virt PMU events for cdeleg counter-mask testing MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260701-counter_delegation-v8-21-7909f863a645@meta.com> References: <20260701-counter_delegation-v8-0-7909f863a645@meta.com> In-Reply-To: <20260701-counter_delegation-v8-0-7909f863a645@meta.com> To: Jiri Olsa , Paul Walmsley , Mark Rutland , Rob Herring , Anup Patel , Namhyung Kim , Arnaldo Carvalho de Melo , Krzysztof Kozlowski , Atish Patra , Ian Rogers , Will Deacon , James Clark Cc: linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-perf-users@vger.kernel.org, Conor Dooley X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260701_094903_597012_33621B97 X-CRM114-Status: UNSURE ( 9.73 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Atish Patra Adds fake-any/fake-ctr3/fake-ctr34 (event codes 0xF0x QEMU doesn't model) with counterid_masks, to exercise the counter-delegation allocation + counter-mask constraint in QEMU (events read 0 = allocated/programmed, vs 'not supported'). Signed-off-by: Atish Patra --- drivers/perf/riscv_pmu_sbi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c index 6d528eafb525..725816c274e5 100644 --- a/drivers/perf/riscv_pmu_sbi.c +++ b/drivers/perf/riscv_pmu_sbi.c @@ -492,6 +492,12 @@ RVPMU_EVENT_CMASK_ATTR(instructions, instructions, 0x02, 0xFFFFFFF8); RVPMU_EVENT_CMASK_ATTR(dTLB-load-misses, dTLB_load_miss, 0x10019, 0xFFFFFFF8); RVPMU_EVENT_CMASK_ATTR(dTLB-store-misses, dTLB_store_miss, 0x1001B, 0xFFFFFFF8); RVPMU_EVENT_CMASK_ATTR(iTLB-load-misses, iTLB_load_miss, 0x10021, 0xFFFFFFF8); +/* + * FAKE events for cdeleg mechanism testing: event codes QEMU does NOT model. + */ +RVPMU_EVENT_CMASK_ATTR(fake-any, fake_any, 0xF00, 0xFFFFFFF8); +RVPMU_EVENT_CMASK_ATTR(fake-ctr3, fake_ctr3, 0xF01, 0x8); +RVPMU_EVENT_CMASK_ATTR(fake-ctr34, fake_ctr34, 0xF02, 0x18); static struct attribute *qemu_virt_event_group[] = { RVPMU_EVENT_ATTR_PTR(cycles), @@ -499,6 +505,9 @@ static struct attribute *qemu_virt_event_group[] = { RVPMU_EVENT_ATTR_PTR(dTLB_load_miss), RVPMU_EVENT_ATTR_PTR(dTLB_store_miss), RVPMU_EVENT_ATTR_PTR(iTLB_load_miss), + RVPMU_EVENT_ATTR_PTR(fake_any), + RVPMU_EVENT_ATTR_PTR(fake_ctr3), + RVPMU_EVENT_ATTR_PTR(fake_ctr34), NULL, }; -- 2.53.0-Meta