From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dl1-f73.google.com (mail-dl1-f73.google.com [74.125.82.73]) (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 BA7CB34C98C for ; Tue, 7 Apr 2026 07:20:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775546405; cv=none; b=L8N9LfERmX0co/aYJcd3ToI0+rdvRJHvA8JZYV6j0pNoqmx3LDMnPlM+kCDlBT69X62wugSbdYFPtq7KzhSZxHWpGjuVg/oMOzjYGlWjQyvCktHt7U9+rMfxsUqYAnd5CDphExqYTNp4Bd35/cPUlAV8Qcy9qWi57qPVwuv7O/g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775546405; c=relaxed/simple; bh=VGXIjtQ+zcgpDmjQnxagz2doQwln72F27aRoSrmUNjQ=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=r+WNHv+Sd2m8z/nDJGKVd/PXxMczdyWgpRSIz28c4/tnbQV6A+4HCWGqWiNUUUXIEi9DBKAu6c8/lgObjgWiFFz9LNXiM/pXnX6cYI77Or/qIX+Fm0TjdPqvwKF2bVFrcKefI1o7e2yUXHtuzte+MPx+yYjJgkqn1bqVSdNaams= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--wnliu.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=SGGyGQF5; arc=none smtp.client-ip=74.125.82.73 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--wnliu.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="SGGyGQF5" Received: by mail-dl1-f73.google.com with SMTP id a92af1059eb24-1270dcd11c1so8072049c88.0 for ; Tue, 07 Apr 2026 00:20:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1775546404; x=1776151204; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:from:subject:message-id:references :mime-version:in-reply-to:date:from:to:cc:subject:date:message-id :reply-to; bh=VGXIjtQ+zcgpDmjQnxagz2doQwln72F27aRoSrmUNjQ=; b=SGGyGQF5yZHn5ctN5thHrusuR49n9dt5ooLGkeQTHiPK93o1E8GfR8rVbdQJ3ttPGz kYF8iOZggK6vhk7WgM0hoDfejVkOYojn0coq06NNBF0VG9kL3/3XkmhJ5iOASEwtAjt9 SvmxTrjX1QEQpkx3FLidAKarIu6f0JuI+Vffu7SG288lqfumpAtohRMrdXKcxCnLUX+I szOp+wyEGEnmtnANIxUq72G0MdG1SwgmT4WvDoxJVzILj1GgS9yDE6XzCfd6U8Rvg2EW 7HPnWH9ma3jmQ3aT4jcvvfo2nWQ3dEumwyb7oIEfKATEboMbGAdCsKIWm6a+8YPbZy0+ A9hA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775546404; x=1776151204; h=content-transfer-encoding:cc:to:from:subject:message-id:references :mime-version:in-reply-to:date:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=VGXIjtQ+zcgpDmjQnxagz2doQwln72F27aRoSrmUNjQ=; b=A9JzeStXiSFJqCDIHwLw2IWlFNvF+PfUy1u8hBOolS+ijmxGrUawJHnyuV1N8qmpyw Yetnfyckm5GSmkzaJeya9ulN2RzCdNKmR0u+N3zDe1YW6+uRhWFuBed2ee9oMP+cSZ6o qL4EF6BuIBI4wqTFOO5NEyGBol+SU5KyrhDcILGOjKlbENt4RAgPn1wFcxUT0lTxFL64 67GFFrNuE21K9CBjzGSY/jshr6BMT36nVn3iEhe/eah+oqd3D74qKq6S+8U8EfIe3Fl/ UrPUXJsErcolRCsfC2h0106K30S4+LNWkqOo2R4j6OdVb0xpD68JlRGF3zfuxAJMfHR+ dBWw== X-Forwarded-Encrypted: i=1; AJvYcCVJNDzxkaKKXQy4Y1GOZigigoJ+82YlGjDpvdTvQsudojtPqi2skdZRbRtjf6xdxGFWSR5GbKV+DLlFJPU=@vger.kernel.org X-Gm-Message-State: AOJu0YwxNPe385+GoU8EyZAmsymXh2N/rypnbhlWjETPV2Gb7AELRT2l XyhRbHFGJE7RO5AE4JLgmyA6c6v6XXwFF2z1lY9Q9GSHzEcdkVlSi3hUrzjqPPA3Sf6NG6A0ouE fgA== X-Received: from dlbvs3.prod.google.com ([2002:a05:7022:3f03:b0:12a:7a40:ea24]) (user=wnliu job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:6997:b0:128:cf75:42a3 with SMTP id a92af1059eb24-12bfb745b32mr7158994c88.21.1775546403614; Tue, 07 Apr 2026 00:20:03 -0700 (PDT) Date: Tue, 7 Apr 2026 07:20:01 +0000 In-Reply-To: <20260330084206.9251-9-suravee.suthikulpanit@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260330084206.9251-9-suravee.suthikulpanit@amd.com> X-Mailer: git-send-email 2.53.0.1213.gd9a14994de-goog Message-ID: <20260407072001.638812-1-wnliu@google.com> Subject: Re: [PATCH 8/22] iommu/amd: Introduce Reset vMMIO Command From: Weinan Liu To: suravee.suthikulpanit@amd.com Cc: chriscli@google.com, dantuluris@google.com, iommu@lists.linux.dev, jay.chen@amd.com, jgg@nvidia.com, jon.grimm@amd.com, joro@8bytes.org, kevin.tian@intel.com, kpsingh@google.com, linux-kernel@vger.kernel.org, nicolinc@nvidia.com, sairaj.arunkodilkar@amd.com, santosh.shukla@amd.com, vasant.hegde@amd.com, wnliu@google.com, wvw@google.com, yi.l.liu@intel.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, Mar 30, 2026 at 1:43=E2=80=AFAM Suravee Suthikulpanit wrote: > > Introduce new IOMMU commands for vIOMMU to reset > virtualized MMIO registers of a particular guest. > > Signed-off-by: Suravee Suthikulpanit Reviewed-by: Weinan Liu