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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CFDD6C433EF for ; Mon, 29 Nov 2021 20:04:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349891AbhK2UHd (ORCPT ); Mon, 29 Nov 2021 15:07:33 -0500 Received: from sin.source.kernel.org ([145.40.73.55]:49344 "EHLO sin.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229538AbhK2UFc (ORCPT ); Mon, 29 Nov 2021 15:05:32 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id AF0F0CE13F9 for ; Mon, 29 Nov 2021 20:02:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D9AFBC53FCF; Mon, 29 Nov 2021 20:02:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1638216131; bh=JIlqAddKl/85lpIm3FWWCZ7fbOCEiWhQkqCIpNen/Oo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uKxRWBZJtPq2mZZ7uVYc9BHyGwFM+Ms9WGiTI6X+o1PyFZuKEM7EOcPRpoGYrZMXI hGM0gaXx+DI+R7M4kHe4k8jamiJW3CIPx/E547crz5BcBbRXTJWsxQLUbM84V1LweL +G0y21TZBbM5qxOP3ltoq7t+kybNiduAEwQ9zlYMeA9a3ORuZWp6rhzyfoUm5vomLC cRO4e0G+lsFAGsK4gYVHlyzvBNruz4fVoJ8ZGAl6sy+1YrOW7rg4GysCKWW32CUB0i A2tA1dYznbyRPePw435Eeg/a55ldEr9Ym9N08fTUJHoQOoOtq7oVoler4/CJ2NtkUA kzhasaUXuYyeg== Received: from sofa.misterjones.org ([185.219.108.64] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mrmqo-008gvR-2h; Mon, 29 Nov 2021 20:02:10 +0000 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: Andre Przywara , Christoffer Dall , Jintack Lim , Haibo Xu , Ganapatrao Kulkarni , James Morse , Suzuki K Poulose , Alexandru Elisei , kernel-team@android.com Subject: [PATCH v5 03/69] KVM: arm64: Add minimal handling for the ARMv8.7 PMU Date: Mon, 29 Nov 2021 20:00:44 +0000 Message-Id: <20211129200150.351436-4-maz@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211129200150.351436-1-maz@kernel.org> References: <20211129200150.351436-1-maz@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, andre.przywara@arm.com, christoffer.dall@arm.com, jintack@cs.columbia.edu, haibo.xu@linaro.org, gankulkarni@os.amperecomputing.com, james.morse@arm.com, suzuki.poulose@arm.com, alexandru.elisei@arm.com, kernel-team@android.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org When running a KVM guest hosted on an ARMv8.7 machine, the host kernel complains that it doesn't know about the architected number of events. Fix it by adding the PMUver code corresponding to PMUv3 for ARMv8.7. Reviewed-by: Alexandru Elisei Tested-by: Alexandru Elisei Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20211126115533.217903-1-maz@kernel.org --- arch/arm64/include/asm/sysreg.h | 1 + arch/arm64/kvm/pmu-emul.c | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 16b3f1a1d468..615dd6278f8b 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -937,6 +937,7 @@ #define ID_AA64DFR0_PMUVER_8_1 0x4 #define ID_AA64DFR0_PMUVER_8_4 0x5 #define ID_AA64DFR0_PMUVER_8_5 0x6 +#define ID_AA64DFR0_PMUVER_8_7 0x7 #define ID_AA64DFR0_PMUVER_IMP_DEF 0xf #define ID_AA64DFR0_PMSVER_8_2 0x1 diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c index a5e4bbf5e68f..ca92cc5c71c6 100644 --- a/arch/arm64/kvm/pmu-emul.c +++ b/arch/arm64/kvm/pmu-emul.c @@ -28,6 +28,7 @@ static u32 kvm_pmu_event_mask(struct kvm *kvm) case ID_AA64DFR0_PMUVER_8_1: case ID_AA64DFR0_PMUVER_8_4: case ID_AA64DFR0_PMUVER_8_5: + case ID_AA64DFR0_PMUVER_8_7: return GENMASK(15, 0); default: /* Shouldn't be here, just for sanity */ WARN_ONCE(1, "Unknown PMU version %d\n", kvm->arch.pmuver); -- 2.30.2