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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 BD955C83F17 for ; Mon, 14 Jul 2025 23:25:54 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ubSMd-00047R-F9; Mon, 14 Jul 2025 19:13:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ubSJQ-0005v1-7H for qemu-devel@nongnu.org; Mon, 14 Jul 2025 19:10:29 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ubSJO-000630-Ao for qemu-devel@nongnu.org; Mon, 14 Jul 2025 19:10:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1752534617; 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: in-reply-to:in-reply-to:references:references; bh=LQsMSXn3O6fJ5Qu14+HzAkdfpt7nRejvAZC4T7sYHrY=; b=DqI4NJlZl53ZJHfHnc3/zPZSpdMjiN7sgfaC4UYQMZzxO/h9r7E+3/BM+fpI3xHyQxZm/4 exnvQeqAEK2nfeNs7L0eR2Mj4V9GMevFX6TDv9O5Jjsx2Z9dmujW9+1u62UhDfLFaVi6aO zFEMxUaUy/N9uoDyUUq/1yMD81b0Kdc= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-253-ehCD-Ga1Pgi8gz3ZVxeWFg-1; Mon, 14 Jul 2025 19:10:16 -0400 X-MC-Unique: ehCD-Ga1Pgi8gz3ZVxeWFg-1 X-Mimecast-MFC-AGG-ID: ehCD-Ga1Pgi8gz3ZVxeWFg_1752534615 Received: by mail-wm1-f69.google.com with SMTP id 5b1f17b1804b1-45611579300so13303465e9.0 for ; Mon, 14 Jul 2025 16:10:15 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752534614; x=1753139414; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=LQsMSXn3O6fJ5Qu14+HzAkdfpt7nRejvAZC4T7sYHrY=; b=sSb4mSR+l5nK/EXSatJYOi5amp8A6jD/sLz1R3aNtGQw3jwhD8PXfnCzWjERA7K7ha +I4eNoWOgROnzber+OPvZ9SKl+LolOqC3zWrH+VdeMgOXxkdq50fEnU5FVEsx8nlkHM8 V7/02Ud0LCmXp/SXTppZ/3HokXoRTKvsw8x4lLLyo/voQA6Q4f61JxStK74HjmPcuhkD aFfnV/eFO6ue9rgkntSnbHvUq6svmHVefBYQpNH8iQr1czKQz1sDgE4OtGR21kmJ82e6 fd/4iFGGukKwhbEujothy0lhffTga3B3g/viKMYxDTlcv4F/HrHD46JVVREKXByhxieo PY8w== X-Gm-Message-State: AOJu0Yz4gy0rMLDPuLHMDjr6IyUH0wqjK6YlhFTypFI7dVRMYapn3adB V12jBTUSX8H5d1tQ1TXDW4mYArVwM6dvcp/4pZweInSUOsxKnYRxQzRAiNHKdh+z2cbHaelg0KK dX3s8VYPannSqbOsQHBmpSdpMBfB71Zy0e0XgzAOX8OVewpUz+R99t0tgRw0kCMpYnS3V+XSE8n rV6F4zt7JtqPNkPIYdHAkYhiobuJ6p97IF5w== X-Gm-Gg: ASbGncsinev3a0ukGbrRtpO69WpsAW90K6mO/5y60gTu5fOcc3tpU8AoJpHdbVHwy0l s5XbQxp5iocwsfzOgUkNYMjdAUTsF0H02W8M2WjaRQXcojMQbrpPO1c1p2wzhsQjn6DSdPh80Zm hdCvrLV775KXbuJNalV8YjZxg2ZzbQOCyAKDvJnA5OfOs2U1hgfjMJxbYrEW40j08jTD+DftIVv l/fBwN5jjaEB0FGmR+Q+jCVvskaHvItB5T1jUqHOHZxwGlcBH6ALfb5ki1CTD2A+bYGAtjuIYPT fikMfbc8MoJKwIHFe/ucIXppS5NWOmyp X-Received: by 2002:a05:6000:18a5:b0:3a6:d5fd:4687 with SMTP id ffacd0b85a97d-3b5f2dc2906mr8623572f8f.18.1752534614261; Mon, 14 Jul 2025 16:10:14 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGftFNumpmK0tJcuQI0+ugaBC56COUS4kShCPbFHqpW93kxGcMXvhqYdopb9wztBVHO2JzLTQ== X-Received: by 2002:a05:6000:18a5:b0:3a6:d5fd:4687 with SMTP id ffacd0b85a97d-3b5f2dc2906mr8623557f8f.18.1752534613695; Mon, 14 Jul 2025 16:10:13 -0700 (PDT) Received: from redhat.com ([2a0d:6fc0:150d:fc00:de3:4725:47c6:6809]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3b5e8e0d76fsm13835390f8f.64.2025.07.14.16.10.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Jul 2025 16:10:12 -0700 (PDT) Date: Mon, 14 Jul 2025 19:10:11 -0400 From: "Michael S. Tsirkin" To: qemu-devel@nongnu.org Cc: Peter Maydell , Anisa Su , Fan Ni , Jonathan Cameron Subject: [PULL 90/97] hw/cxl: mailbox-utils: 0x5601 - FMAPI Get Host Region Config Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent Received-SPF: pass client-ip=170.10.129.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Anisa Su FM DCD Management command 0x5601 implemented per CXL r3.2 Spec Section 7.6.7.6.2 Reviewed-by: Fan Ni Signed-off-by: Anisa Su Signed-off-by: Jonathan Cameron Message-Id: <20250714174509.1984430-5-Jonathan.Cameron@huawei.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/cxl/cxl-mailbox-utils.c | 106 +++++++++++++++++++++++++++++++++++++ 1 file changed, 106 insertions(+) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index 3304048922..bf1710b251 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -120,6 +120,7 @@ enum { #define MANAGEMENT_COMMAND 0x0 FMAPI_DCD_MGMT = 0x56, #define GET_DCD_INFO 0x0 + #define GET_HOST_DC_REGION_CONFIG 0x1 }; /* CCI Message Format CXL r3.1 Figure 7-19 */ @@ -3286,6 +3287,109 @@ static CXLRetCode cmd_fm_get_dcd_info(const struct cxl_cmd *cmd, return CXL_MBOX_SUCCESS; } +static void build_dsmas_flags(uint8_t *flags, CXLDCRegion *region) +{ + *flags = 0; + + if (region->nonvolatile) { + *flags |= BIT(CXL_DSMAS_FLAGS_NONVOLATILE); + } + if (region->sharable) { + *flags |= BIT(CXL_DSMAS_FLAGS_SHARABLE); + } + if (region->hw_managed_coherency) { + *flags |= BIT(CXL_DSMAS_FLAGS_HW_MANAGED_COHERENCY); + } + if (region->ic_specific_dc_management) { + *flags |= BIT(CXL_DSMAS_FLAGS_IC_SPECIFIC_DC_MANAGEMENT); + } + if (region->rdonly) { + *flags |= BIT(CXL_DSMAS_FLAGS_RDONLY); + } +} + +/* + * CXL r3.2 section 7.6.7.6.2: + * Get Host DC Region Configuration (Opcode 5601h) + */ +static CXLRetCode cmd_fm_get_host_dc_region_config(const struct cxl_cmd *cmd, + uint8_t *payload_in, + size_t len_in, + uint8_t *payload_out, + size_t *len_out, + CXLCCI *cci) +{ + struct { + uint16_t host_id; + uint8_t region_cnt; + uint8_t start_rid; + } QEMU_PACKED *in = (void *)payload_in; + struct { + uint16_t host_id; + uint8_t num_regions; + uint8_t regions_returned; + struct { + uint64_t base; + uint64_t decode_len; + uint64_t region_len; + uint64_t block_size; + uint8_t flags; + uint8_t rsvd1[3]; + uint8_t sanitize; + uint8_t rsvd2[3]; + } QEMU_PACKED records[]; + } QEMU_PACKED *out = (void *)payload_out; + struct { + uint32_t num_extents_supported; + uint32_t num_extents_available; + uint32_t num_tags_supported; + uint32_t num_tags_available; + } QEMU_PACKED *extra_out; + CXLType3Dev *ct3d = CXL_TYPE3(cci->d); + uint16_t record_count, out_pl_len, i; + + if (in->start_rid >= ct3d->dc.num_regions) { + return CXL_MBOX_INVALID_INPUT; + } + record_count = MIN(ct3d->dc.num_regions - in->start_rid, in->region_cnt); + + out_pl_len = sizeof(*out) + record_count * sizeof(out->records[0]); + extra_out = (void *)out + out_pl_len; + out_pl_len += sizeof(*extra_out); + + assert(out_pl_len <= CXL_MAILBOX_MAX_PAYLOAD_SIZE); + + stw_le_p(&out->host_id, 0); + out->num_regions = ct3d->dc.num_regions; + out->regions_returned = record_count; + + for (i = 0; i < record_count; i++) { + stq_le_p(&out->records[i].base, + ct3d->dc.regions[in->start_rid + i].base); + stq_le_p(&out->records[i].decode_len, + ct3d->dc.regions[in->start_rid + i].decode_len / + CXL_CAPACITY_MULTIPLIER); + stq_le_p(&out->records[i].region_len, + ct3d->dc.regions[in->start_rid + i].len); + stq_le_p(&out->records[i].block_size, + ct3d->dc.regions[in->start_rid + i].block_size); + build_dsmas_flags(&out->records[i].flags, + &ct3d->dc.regions[in->start_rid + i]); + /* Sanitize is bit 0 of flags. */ + out->records[i].sanitize = + ct3d->dc.regions[in->start_rid + i].flags & BIT(0); + } + + stl_le_p(&extra_out->num_extents_supported, CXL_NUM_EXTENTS_SUPPORTED); + stl_le_p(&extra_out->num_extents_available, CXL_NUM_EXTENTS_SUPPORTED - + ct3d->dc.total_extent_count); + stl_le_p(&extra_out->num_tags_supported, CXL_NUM_TAGS_SUPPORTED); + stl_le_p(&extra_out->num_tags_available, CXL_NUM_TAGS_SUPPORTED); + + *len_out = out_pl_len; + return CXL_MBOX_SUCCESS; +} + static const struct cxl_cmd cxl_cmd_set[256][256] = { [INFOSTAT][BACKGROUND_OPERATION_ABORT] = { "BACKGROUND_OPERATION_ABORT", cmd_infostat_bg_op_abort, 0, 0 }, @@ -3402,6 +3506,8 @@ static const struct cxl_cmd cxl_cmd_set_sw[256][256] = { static const struct cxl_cmd cxl_cmd_set_fm_dcd[256][256] = { [FMAPI_DCD_MGMT][GET_DCD_INFO] = { "GET_DCD_INFO", cmd_fm_get_dcd_info, 0, 0 }, + [FMAPI_DCD_MGMT][GET_HOST_DC_REGION_CONFIG] = { "GET_HOST_DC_REGION_CONFIG", + cmd_fm_get_host_dc_region_config, 4, 0 }, }; /* -- MST