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helo=lists.gnu.org; Received-SPF: pass client-ip=80.78.11.85; 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @eviden.com) X-ZM-MESSAGEID: 1713801231045100003 This piece of code can be shared by both IOTLB invalidation and PASID-based IOTLB invalidation Signed-off-by: Cl=C3=A9ment Mathieu--Drif Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/i386/intel_iommu.c | 57 +++++++++++++++++++++++++------------------ 1 file changed, 33 insertions(+), 24 deletions(-) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 3b9f120dec..aaac61bf6a 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -2890,13 +2890,42 @@ static bool vtd_process_inv_iec_desc(IntelIOMMUStat= e *s, return true; } =20 +static void do_invalidate_device_tlb(VTDAddressSpace *vtd_dev_as, + bool size, hwaddr addr) +{ + /* + * According to ATS spec table 2.4: + * S =3D 0, bits 15:12 =3D xxxx range size: 4K + * S =3D 1, bits 15:12 =3D xxx0 range size: 8K + * S =3D 1, bits 15:12 =3D xx01 range size: 16K + * S =3D 1, bits 15:12 =3D x011 range size: 32K + * S =3D 1, bits 15:12 =3D 0111 range size: 64K + * ... + */ + + IOMMUTLBEvent event; + uint64_t sz; + + if (size) { + sz =3D (VTD_PAGE_SIZE * 2) << cto64(addr >> VTD_PAGE_SHIFT); + addr &=3D ~(sz - 1); + } else { + sz =3D VTD_PAGE_SIZE; + } + + event.type =3D IOMMU_NOTIFIER_DEVIOTLB_UNMAP; + event.entry.target_as =3D &vtd_dev_as->as; + event.entry.addr_mask =3D sz - 1; + event.entry.iova =3D addr; + event.entry.perm =3D IOMMU_NONE; + event.entry.translated_addr =3D 0; + memory_region_notify_iommu(&vtd_dev_as->iommu, 0, event); +} static bool vtd_process_device_iotlb_desc(IntelIOMMUState *s, VTDInvDesc *inv_desc) { VTDAddressSpace *vtd_dev_as; - IOMMUTLBEvent event; hwaddr addr; - uint64_t sz; uint16_t sid; bool size; =20 @@ -2912,6 +2941,7 @@ static bool vtd_process_device_iotlb_desc(IntelIOMMUS= tate *s, return false; } =20 + /* * Using sid is OK since the guest should have finished the * initialization of both the bus and device. @@ -2921,28 +2951,7 @@ static bool vtd_process_device_iotlb_desc(IntelIOMMU= State *s, goto done; } =20 - /* According to ATS spec table 2.4: - * S =3D 0, bits 15:12 =3D xxxx range size: 4K - * S =3D 1, bits 15:12 =3D xxx0 range size: 8K - * S =3D 1, bits 15:12 =3D xx01 range size: 16K - * S =3D 1, bits 15:12 =3D x011 range size: 32K - * S =3D 1, bits 15:12 =3D 0111 range size: 64K - * ... - */ - if (size) { - sz =3D (VTD_PAGE_SIZE * 2) << cto64(addr >> VTD_PAGE_SHIFT); - addr &=3D ~(sz - 1); - } else { - sz =3D VTD_PAGE_SIZE; - } - - event.type =3D IOMMU_NOTIFIER_DEVIOTLB_UNMAP; - event.entry.target_as =3D &vtd_dev_as->as; - event.entry.addr_mask =3D sz - 1; - event.entry.iova =3D addr; - event.entry.perm =3D IOMMU_NONE; - event.entry.translated_addr =3D 0; - memory_region_notify_iommu(&vtd_dev_as->iommu, 0, event); + do_invalidate_device_tlb(vtd_dev_as, size, addr); =20 done: return true; --=20 2.44.0