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X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_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 On 6/23/25 12:53 PM, Sairaj Kodilkar wrote: > > > On 5/2/2025 7:45 AM, Alejandro Jimenez wrote: >> Add the minimal data structures required to maintain a list of address >> spaces (i.e. devices) with registered notifiers, and to update the >> type of >> events that require notifications. >> Note that the ability to register for MAP notifications is not available. >> It will be unblocked by following changes that enable the >> synchronization of >> guest I/O page tables with host IOMMU state, at which point an amd-iommu >> device property will be introduced to control this capability. >> >> Signed-off-by: Alejandro Jimenez >> --- >>   hw/i386/amd_iommu.c | 26 +++++++++++++++++++++++--- >>   hw/i386/amd_iommu.h |  3 +++ >>   2 files changed, 26 insertions(+), 3 deletions(-) >> >> diff --git a/hw/i386/amd_iommu.c b/hw/i386/amd_iommu.c >> index 6a2ba878dfa7..2f69459ab68d 100644 >> --- a/hw/i386/amd_iommu.c >> +++ b/hw/i386/amd_iommu.c >> @@ -66,6 +66,11 @@ struct AMDVIAddressSpace { >>       MemoryRegion iommu_nodma;   /* Alias of shared nodma memory >> region  */ >>       MemoryRegion iommu_ir;      /* Device's interrupt remapping >> region  */ >>       AddressSpace as;            /* device's corresponding address >> space */ >> + >> +    /* DMA address translation support */ >> +    IOMMUNotifierFlag notifier_flags; >> +    /* entry in list of Address spaces with registered notifiers */ >> +    QLIST_ENTRY(AMDVIAddressSpace) next; >>   }; >>   /* AMDVI cache entry */ >> @@ -1711,6 +1716,7 @@ static AddressSpace *amdvi_host_dma_iommu(PCIBus >> *bus, void *opaque, int devfn) >>           iommu_as[devfn]->bus_num = (uint8_t)bus_num; >>           iommu_as[devfn]->devfn = (uint8_t)devfn; >>           iommu_as[devfn]->iommu_state = s; >> +        iommu_as[devfn]->notifier_flags = IOMMU_NONE; > > Hey > Use IOMMU_NOTIFIER_NONE instead of IOMMU_NONE. Though both are same, the > clang compiler complains about it and fails to compile (GCC works ok). > Good catch, IOMMU_NOTIFIER_NONE is the correct type to use. I fixed it and checked it builds with no errors using: CC=clang CCX=clang++ ./configure --target-list=x86_64-softmmu --enable-debug Also fixed the whitespace changes you pointed out on the earlier reply. Thank you, Alejandro > Thanks > Sairaj Kodilkar >