From nobody Mon Feb 9 12:23:23 2026 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 9C84A2D662F; Wed, 21 Jan 2026 21:46:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769031989; cv=none; b=Qxtxzcgqc4Iuskn7mJMaB3z2Bx7TTohioCNEjQpEeXOUXmBVM92B/A+fAVoTT8NQM3q+sal/gGxkQpcYxETfI344y4V55lNf9gL0vP318vuibpunQ03rNK9tDvgNpHMuMZ7g9sMO6rgpb43GoQblJoKdy1vO+0Vu/mrLqGWT61A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769031989; c=relaxed/simple; bh=LGyzTX4xWSJJekGMkFmdCSwur90Dz4p/8piG3psISFY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sJWiTHqbGVwgxD/o7mtpZ5I6NaSfpne9pjCQUjzjUJ4Vftv3Um55Bo6lWxq7id04qebcAfwHKfOMOjIuOvWIG86FqKI8a92DHyc6beVxQuND9j6dZ4ZBl33Pc/qIH+HYYRxYbEDuFhIzTqVS4azbsQamWQ6NpVVWS58llXPVR64= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=sMHZDtGD; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="sMHZDtGD" Received: by linux.microsoft.com (Postfix, from userid 1032) id 15C2320B716E; Wed, 21 Jan 2026 13:46:27 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 15C2320B716E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1769031987; bh=BGaYS6fQUdhPyKlCCJgGza596ULYdDNfZRmn2XlPOsQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sMHZDtGD8/tOrCzQcA24yocVqaKy9LQV6tCuKqD6ZN6se16ovYKfcLR3xWRkKEwQN QX+zO3EyP/0d3/bE5OufKYP0sL+tZPNFMuKp3xpM53B0Uhp0aecGMTSXcZxBY1qFhL RcHFDOIVBXmztzo53U4Y0JctHYsvOOxDFZUV1gAg= From: Nuno Das Neves To: linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, mhklinux@outlook.com, skinsburskii@linux.microsoft.com Cc: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, longli@microsoft.com, prapal@linux.microsoft.com, mrathor@linux.microsoft.com, paekkaladevi@linux.microsoft.com, Nuno Das Neves Subject: [PATCH v4 5/7] mshv: Update hv_stats_page definitions Date: Wed, 21 Jan 2026 13:46:21 -0800 Message-ID: <20260121214623.76374-6-nunodasneves@linux.microsoft.com> X-Mailer: git-send-email 2.43.7 In-Reply-To: <20260121214623.76374-1-nunodasneves@linux.microsoft.com> References: <20260121214623.76374-1-nunodasneves@linux.microsoft.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" hv_stats_page belongs in hvhdk.h, move it there. It does not require a union to access the data for different counters, just use a single u64 array for simplicity and to match the Windows definitions. While at it, correct the ARM64 value for VpRootDispatchThreadBlocked. Signed-off-by: Nuno Das Neves Reviewed-by: Stanislav Kinsburskii --- drivers/hv/mshv_root_main.c | 22 ++++++---------------- include/hyperv/hvhdk.h | 8 ++++++++ 2 files changed, 14 insertions(+), 16 deletions(-) diff --git a/drivers/hv/mshv_root_main.c b/drivers/hv/mshv_root_main.c index fbfc9e7d9fa4..12825666e21b 100644 --- a/drivers/hv/mshv_root_main.c +++ b/drivers/hv/mshv_root_main.c @@ -39,23 +39,14 @@ MODULE_AUTHOR("Microsoft"); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Microsoft Hyper-V root partition VMM interface /dev/ms= hv"); =20 -/* TODO move this to another file when debugfs code is added */ enum hv_stats_vp_counters { /* HV_THREAD_COUNTER */ #if defined(CONFIG_X86) - VpRootDispatchThreadBlocked =3D 202, + VpRootDispatchThreadBlocked =3D 202, #elif defined(CONFIG_ARM64) - VpRootDispatchThreadBlocked =3D 94, + VpRootDispatchThreadBlocked =3D 95, #endif - VpStatsMaxCounter }; =20 -struct hv_stats_page { - union { - u64 vp_cntrs[VpStatsMaxCounter]; /* VP counters */ - u8 data[HV_HYP_PAGE_SIZE]; - }; -} __packed; - struct mshv_root mshv_root; =20 enum hv_scheduler_type hv_scheduler_type; @@ -485,12 +476,11 @@ static u64 mshv_vp_interrupt_pending(struct mshv_vp *= vp) static bool mshv_vp_dispatch_thread_blocked(struct mshv_vp *vp) { struct hv_stats_page **stats =3D vp->vp_stats_pages; - u64 *self_vp_cntrs =3D stats[HV_STATS_AREA_SELF]->vp_cntrs; - u64 *parent_vp_cntrs =3D stats[HV_STATS_AREA_PARENT]->vp_cntrs; + u64 *self_vp_cntrs =3D stats[HV_STATS_AREA_SELF]->data; + u64 *parent_vp_cntrs =3D stats[HV_STATS_AREA_PARENT]->data; =20 - if (self_vp_cntrs[VpRootDispatchThreadBlocked]) - return self_vp_cntrs[VpRootDispatchThreadBlocked]; - return parent_vp_cntrs[VpRootDispatchThreadBlocked]; + return parent_vp_cntrs[VpRootDispatchThreadBlocked] || + self_vp_cntrs[VpRootDispatchThreadBlocked]; } =20 static int diff --git a/include/hyperv/hvhdk.h b/include/hyperv/hvhdk.h index 469186df7826..ac501969105c 100644 --- a/include/hyperv/hvhdk.h +++ b/include/hyperv/hvhdk.h @@ -10,6 +10,14 @@ #include "hvhdk_mini.h" #include "hvgdk.h" =20 +/* + * Hypervisor statistics page format + */ +struct hv_stats_page { + u64 data[HV_HYP_PAGE_SIZE / sizeof(u64)]; +} __packed; + + /* Bits for dirty mask of hv_vp_register_page */ #define HV_X64_REGISTER_CLASS_GENERAL 0 #define HV_X64_REGISTER_CLASS_IP 1 --=20 2.34.1