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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 AB8E9CA9EAF for ; Sun, 27 Oct 2019 14:45:15 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 27BC821D81 for ; Sun, 27 Oct 2019 14:45:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="OjPTFRun" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 27BC821D81 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id BECB14A54B; Sun, 27 Oct 2019 10:45:14 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@kernel.org Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wcUmT0Za45qk; Sun, 27 Oct 2019 10:45:12 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 0CA8A4A50F; Sun, 27 Oct 2019 10:45:12 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id CF69C4AC81 for ; Sun, 27 Oct 2019 10:45:10 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id treJjZov538h for ; Sun, 27 Oct 2019 10:45:09 -0400 (EDT) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id D65B34A4FC for ; Sun, 27 Oct 2019 10:45:09 -0400 (EDT) Received: from localhost.localdomain (82-132-239-15.dab.02.net [82.132.239.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A261E21850; Sun, 27 Oct 2019 14:45:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572187509; bh=G89DNts1Mk+ZkFZ1zrEi0DKxHIKypo53heYw+LgA7vQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OjPTFRunxrGQwBJo0ZIv4wKHz2LQqkPC6bEOFh8gA2tyZ86uJIfSXkBNFpL8epMjw KI7kfgRp11gWDC+WwO77kgKtTtYKdAhSrLkYLh2N2nm6Uc1UoOAKGU6EQBhdZ6CGg9 6377i9zzzw0TTqWGR95PwUm6I8XxnaeFwVW6na4o= From: Marc Zyngier To: kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org Subject: [PATCH v2 19/36] irqchip/gic-v4.1: Add VPE INVALL callback Date: Sun, 27 Oct 2019 14:42:17 +0000 Message-Id: <20191027144234.8395-20-maz@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191027144234.8395-1-maz@kernel.org> References: <20191027144234.8395-1-maz@kernel.org> MIME-Version: 1.0 Cc: Lorenzo Pieralisi , Jason Cooper , Robert Richter , Jayachandran C , Thomas Gleixner X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Archived-At: List-Archive: GICv4.1 redistributors have a VPE-aware INVALL register. Progress! We can now emulate a guest-requested INVALL without emiting a VINVALL command. Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-gic-v3-its.c | 14 ++++++++++++++ include/linux/irqchip/arm-gic-v3.h | 3 +++ 2 files changed, 17 insertions(+) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index f7effd453729..10bd156aa042 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -3511,6 +3511,19 @@ static void its_vpe_4_1_deschedule(struct its_vpe *vpe, } } +static void its_vpe_4_1_invall(struct its_vpe *vpe) +{ + void __iomem *rdbase; + u64 val; + + val = GICR_INVLPIR_V; + val |= FIELD_PREP(GICR_INVLPIR_VPEID, vpe->vpe_id); + + /* Target the redistributor this vPE is currently known on */ + rdbase = per_cpu_ptr(gic_rdists->rdist, vpe->col_idx)->rd_base; + gic_write_lpir(val, rdbase + GICR_INVALLR); +} + static int its_vpe_4_1_set_vcpu_affinity(struct irq_data *d, void *vcpu_info) { struct its_vpe *vpe = irq_data_get_irq_chip_data(d); @@ -3526,6 +3539,7 @@ static int its_vpe_4_1_set_vcpu_affinity(struct irq_data *d, void *vcpu_info) return 0; case INVALL_VPE: + its_vpe_4_1_invall(vpe); return 0; default: diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h index 6fd89d77b2b2..b69f60792554 100644 --- a/include/linux/irqchip/arm-gic-v3.h +++ b/include/linux/irqchip/arm-gic-v3.h @@ -247,6 +247,9 @@ #define GICR_TYPER_COMMON_LPI_AFF GENMASK_ULL(25, 24) #define GICR_TYPER_AFFINITY GENMASK_ULL(63, 32) +#define GICR_INVLPIR_VPEID GENMASK_ULL(47, 32) +#define GICR_INVLPIR_V GENMASK_ULL(63, 63) + #define GIC_V3_REDIST_SIZE 0x20000 #define LPI_PROP_GROUP1 (1 << 1) -- 2.20.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm