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Ip=[216.228.117.161]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF00001CE3.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS5PPF7B9F1F8E0 Received-SPF: permerror client-ip=2a01:111:f403:c107::9; envelope-from=nicolinc@nvidia.com; helo=PH7PR06CU001.outbound.protection.outlook.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, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@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-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org On Tue, Feb 10, 2026 at 12:51:09AM -0800, Shameer Kolothum Thodi wrote: > > On Fri, Feb 06, 2026 at 02:48:09PM +0000, Shameer Kolothum wrote: > > > +static uint64_t tegra241_cmdqv_read_vintf(Tegra241CMDQV *cmdqv, > > hwaddr offset) > > > +{ > > > + int i; > > > + > > > + switch (offset) { > > > + case A_VINTF0_CONFIG: > > > + return cmdqv->vintf_config; > > > + case A_VINTF0_STATUS: > > > + return cmdqv->vintf_status; > > > + case A_VINTF0_LVCMDQ_ERR_MAP_0 ... > > A_VINTF0_LVCMDQ_ERR_MAP_3: > > > + i = (offset - A_VINTF0_LVCMDQ_ERR_MAP_0) / 4; > > > + return cmdqv->vintf_cmdq_err_map[i]; > > > + default: > > > + qemu_log_mask(LOG_UNIMP, "%s unhandled read access at 0x%" > > PRIx64 "\n", > > > + __func__, offset); > > > + return 0; > > > > I wonder if we'd still need to implement VINTF0_SID_MATCH/REPLACE > > registers as it's a part of HW spec. They don't need to associate > > with anything but register cache alone to support MMIO. > > Ok. But I was thinking Guest should not be allowed to configure it as it > belongs to hypervisor, right? That's correct for the physical registers. But I think guest could still MMIO the VM registers? So, what we'd need is just two arrays in the register cache list to support read/write. Nicolin