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From: CLEMENT MATHIEU--DRIF <clement.mathieu--drif@eviden.com>
To: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Cc: "pbonzini@redhat.com" <pbonzini@redhat.com>,
	"peterx@redhat.com" <peterx@redhat.com>,
	"david@redhat.com" <david@redhat.com>,
	"mst@redhat.com" <mst@redhat.com>,
	"jasowang@redhat.com" <jasowang@redhat.com>,
	"zhenzhong.duan@intel.com" <zhenzhong.duan@intel.com>,
	"kevin.tian@intel.com" <kevin.tian@intel.com>,
	"yi.l.liu@intel.com" <yi.l.liu@intel.com>,
	"joao.m.martins@oracle.com" <joao.m.martins@oracle.com>,
	"tjeznach@rivosinc.com" <tjeznach@rivosinc.com>,
	"minwoo.im@samsung.com" <minwoo.im@samsung.com>,
	Ethan MILON <ethan.milon@eviden.com>,
	CLEMENT MATHIEU--DRIF <clement.mathieu--drif@eviden.com>
Subject: [PATCH 04/10] intel_iommu: Fill the PASID field when creating an IOMMUTLBEntry
Date: Sat, 28 Jun 2025 18:04:02 +0000	[thread overview]
Message-ID: <20250628180226.133285-5-clement.mathieu--drif@eviden.com> (raw)
In-Reply-To: <20250628180226.133285-1-clement.mathieu--drif@eviden.com>

PASID value must be used by devices as a key (or part of a key)
when populating their ATC with the IOTLB entries returned by the IOMMU.

Signed-off-by: Clement Mathieu--Drif <clement.mathieu--drif@eviden.com>
---
 hw/i386/intel_iommu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 69d72ad35c..0fb4350d48 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -2503,6 +2503,7 @@ static void vtd_iotlb_page_invalidate_notify(IntelIOMMUState *s,
                         .translated_addr = 0,
                         .addr_mask = size - 1,
                         .perm = IOMMU_NONE,
+                        .pasid = vtd_as->pasid,
                     },
                 };
                 memory_region_notify_iommu(&vtd_as->iommu, 0, event);
@@ -3090,6 +3091,7 @@ static void do_invalidate_device_tlb(VTDAddressSpace *vtd_dev_as,
     event.entry.iova = addr;
     event.entry.perm = IOMMU_NONE;
     event.entry.translated_addr = 0;
+    event.entry.pasid = vtd_dev_as->pasid;
     memory_region_notify_iommu(&vtd_dev_as->iommu, 0, event);
 }
 
@@ -3672,6 +3674,7 @@ static IOMMUTLBEntry vtd_iommu_translate(IOMMUMemoryRegion *iommu, hwaddr addr,
     IOMMUTLBEntry iotlb = {
         /* We'll fill in the rest later. */
         .target_as = &address_space_memory,
+        .pasid = vtd_as->pasid,
     };
     bool success;
 
-- 
2.49.0


  parent reply	other threads:[~2025-06-28 18:05 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-28 18:03 [PATCH v5 00/10] intel_iommu: Add ATS support CLEMENT MATHIEU--DRIF
2025-06-28 18:03 ` [PATCH 01/10] pci: Add a memory attribute for pre-translated DMA operations CLEMENT MATHIEU--DRIF
2025-06-28 18:03 ` [PATCH 02/10] memory: Add permissions in IOMMUAccessFlags CLEMENT MATHIEU--DRIF
2025-06-28 18:04 ` [PATCH 03/10] memory: Allow to store the PASID in IOMMUTLBEntry CLEMENT MATHIEU--DRIF
2025-06-28 18:04 ` CLEMENT MATHIEU--DRIF [this message]
2025-06-28 18:04 ` [PATCH 05/10] intel_iommu: Declare supported PASID size CLEMENT MATHIEU--DRIF
2025-06-28 18:04 ` [PATCH 06/10] intel_iommu: Implement vtd_get_iotlb_info from PCIIOMMUOps CLEMENT MATHIEU--DRIF
2025-06-28 18:04 ` [PATCH 07/10] intel_iommu: Implement the PCIIOMMUOps callbacks related to invalidations of device-IOTLB CLEMENT MATHIEU--DRIF
2025-06-28 18:04 ` [PATCH 08/10] intel_iommu: Return page walk level even when the translation fails CLEMENT MATHIEU--DRIF
2025-06-28 18:04 ` [PATCH 09/10] intel_iommu: Set address mask when a translation fails and adjust W permission CLEMENT MATHIEU--DRIF
2025-06-28 18:04 ` [PATCH 10/10] intel_iommu: Add support for ATS CLEMENT MATHIEU--DRIF

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