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Fri, 5 Jul 2024 11:01:56 +0000 From: CLEMENT MATHIEU--DRIF To: "qemu-devel@nongnu.org" CC: "jasowang@redhat.com" , "zhenzhong.duan@intel.com" , "kevin.tian@intel.com" , "yi.l.liu@intel.com" , "joao.m.martins@oracle.com" , "peterx@redhat.com" , "mst@redhat.com" , CLEMENT MATHIEU--DRIF Subject: [PATCH v4 1/4] intel_iommu: fix FRCD construction macro Thread-Topic: [PATCH v4 1/4] intel_iommu: fix FRCD construction macro Thread-Index: AQHazsrARhZLqun5JEis8sZiKlyPAg== Date: Fri, 5 Jul 2024 11:01:56 +0000 Message-ID: <20240705105937.1630829-2-clement.mathieu--drif@eviden.com> References: <20240705105937.1630829-1-clement.mathieu--drif@eviden.com> In-Reply-To: <20240705105937.1630829-1-clement.mathieu--drif@eviden.com> Accept-Language: en-GB, fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=eviden.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: AM8PR07MB7602:EE_|AS8PR07MB7303:EE_ x-ms-office365-filtering-correlation-id: 5bf0e129-ae69-499c-a499-08dc9ce1e300 x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; 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envelope-from=clement.mathieu--drif@eviden.com; helo=smarthost4.eviden.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-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: Clément Mathieu--Drif The constant must be unsigned, otherwise the two's complement overrides the other fields when a PASID is present. Fixes: 1b2b12376c8a ("intel-iommu: PASID support") Signed-off-by: Clément Mathieu--Drif Reviewed-by: Yi Liu Reviewed-by: Zhenzhong Duan --- hw/i386/intel_iommu_internal.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index f8cf99bddf..cbc4030031 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -267,7 +267,7 @@ /* For the low 64-bit of 128-bit */ #define VTD_FRCD_FI(val) ((val) & ~0xfffULL) #define VTD_FRCD_PV(val) (((val) & 0xffffULL) << 40) -#define VTD_FRCD_PP(val) (((val) & 0x1) << 31) +#define VTD_FRCD_PP(val) (((val) & 0x1ULL) << 31) #define VTD_FRCD_IR_IDX(val) (((val) & 0xffffULL) << 48) /* DMA Remapping Fault Conditions */ From patchwork Fri Jul 5 11:01:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: CLEMENT MATHIEU--DRIF X-Patchwork-Id: 13724967 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 A801EC30658 for ; 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envelope-from=clement.mathieu--drif@eviden.com; helo=smarthost4.eviden.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-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: Clément Mathieu--Drif These 2 macros are for high 64-bit of the FRCD registers. Declarations have to be moved accordingly. Signed-off-by: Clément Mathieu--Drif --- hw/i386/intel_iommu_internal.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index cbc4030031..faea23e8d6 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -264,10 +264,10 @@ #define VTD_FRCD_FR(val) (((val) & 0xffULL) << 32) #define VTD_FRCD_SID_MASK 0xffffULL #define VTD_FRCD_SID(val) ((val) & VTD_FRCD_SID_MASK) -/* For the low 64-bit of 128-bit */ -#define VTD_FRCD_FI(val) ((val) & ~0xfffULL) #define VTD_FRCD_PV(val) (((val) & 0xffffULL) << 40) #define VTD_FRCD_PP(val) (((val) & 0x1ULL) << 31) +/* For the low 64-bit of 128-bit */ +#define VTD_FRCD_FI(val) ((val) & ~0xfffULL) #define VTD_FRCD_IR_IDX(val) (((val) & 0xffffULL) << 48) /* DMA Remapping Fault Conditions */ From patchwork Fri Jul 5 11:01:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: CLEMENT MATHIEU--DRIF X-Patchwork-Id: 13724966 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 78A8DC41513 for ; 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envelope-from=clement.mathieu--drif@eviden.com; helo=smarthost1.eviden.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-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: Clément Mathieu--Drif The mask we are trying to store into VTDIOTLBPageInvInfo.mask might not fit in an uint8_t. Use uint64_t to avoid overflows Signed-off-by: Clément Mathieu--Drif --- hw/i386/intel_iommu_internal.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index faea23e8d6..5f32c36943 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -436,7 +436,7 @@ struct VTDIOTLBPageInvInfo { uint16_t domain_id; uint32_t pasid; uint64_t addr; - uint8_t mask; + uint64_t mask; }; typedef struct VTDIOTLBPageInvInfo VTDIOTLBPageInvInfo; From patchwork Fri Jul 5 11:01:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: CLEMENT MATHIEU--DRIF X-Patchwork-Id: 13724968 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 465FDC3271F for ; 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envelope-from=clement.mathieu--drif@eviden.com; helo=smarthost4.eviden.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-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: Clément Mathieu--Drif The 'level' field in vtd_iotlb_key is an unsigned integer. We don't need to store level as an int in vtd_lookup_iotlb. This is not an issue by itself, but using unsigned here seems cleaner. Signed-off-by: Clément Mathieu--Drif --- hw/i386/intel_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 37c21a0aec..be0cb39b5c 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -358,7 +358,7 @@ static VTDIOTLBEntry *vtd_lookup_iotlb(IntelIOMMUState *s, uint16_t source_id, { struct vtd_iotlb_key key; VTDIOTLBEntry *entry; - int level; + unsigned level; for (level = VTD_SL_PT_LEVEL; level < VTD_SL_PML4_LEVEL; level++) { key.gfn = vtd_get_iotlb_gfn(addr, level);