drm/virtio: Expose allow_p2p capability to user space #40
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Test Done: 1. Android VM boot without issue. 2. Android display well on QNX. Tracked-On: OAM-119826 Signed-off-by: hangliu1 <[email protected]>
Add ACRN guest support so that it allows Linux to be booted under the ACRN hypervisor. Tracked-On: OAM-119803 Signed-off-by: Junjie Mao <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
Add virtio over shared memory front-end for both ACRN and QNX hypervisor. virtio_guest_shm.c is for QNX hypervisor based VM. virtio_ivshmem.c is for ACRN hypervisor based VM. Tracked-On: OAM-119803 Signed-off-by: Junjie Mao <[email protected]> Signed-off-by: Fei Li <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
Add driver for ivshm device. Tracked-On: OAM-119803 Signed-off-by: Junjie Mao <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
Tracked-On: OAM-119803 Signed-off-by: Junjie Mao <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
Tracked-On: OAM-119803 Signed-off-by: Junjie Mao <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
The inter-VM shared memory in QNX is only accessible from CPU and cannot be the source or target of DMA transactions. As a workaround, we alias-map that shared memory as DMA-able to another region in the guest physical address space when launching the VMs. Accordingly the drivers in guest OSes need to use that new address which is accessible to both CPUs and devices. This patch uses a hardcoded address base(96G) for simplicity. Later we should switch to a more generic approach such as ACPI SSDT for reporting the alias maps. Tracked-On: OAM-119803 Signed-off-by: Junjie Mao <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
WA QNX APIC LVT Timer clock accuracy issue by scaling APIC Timer Initial Count by setting qnx_lvtt_scale in kernel cmdline. Now this factor is 73 (TSC/clock ratio). Tracked-On: OAM-119803 Signed-off-by: Fei Li <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
Add extra MMIO window which is defined by cmdline. `pci_root_upper_base` is necessary config and `pci_root_upper_limit` is optional config. Tracked-On: OAM-119803 Signed-off-by: Junjie Mao <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
Add cmdline to set PCI config info for QNX. The two new parameters are `pci_config_override` and `pci_bar_override`. Tracked-On: OAM-119803 Signed-off-by: Junjie Mao <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
The virtual RTC provided by QNX does not support alarms. As a result qvm never binds irq 8 to the virtual RTC and may use that irq for other virtual devices. In such cases the kernel will complain that: genirq: Flags mismatch irq 8. 00000000 (guest_shm) vs. 00000000 (rtc0) That will prevent the real user of that irq from registering the handler and cause the impacted virtual device to malfunction. This patch makes the kernel skip RTC irq if it is not reported in the ACPI namespace, so that we can provide a I/O-port-only RTC device object to the kernel to make it aware that no irq is to be bound to the RTC. Tracked-On: OAM-119803 Signed-off-by: Junjie Mao <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
Provisioning VFs right after the driver is probed has a probability (~80%) to make the screen black. So enable the VF after reach `Main User Target' by setting 'i915_force_provisioning_vfs'. Tracked-On: OAM-119803 Signed-off-by: Junjie Mao <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
In current QNX solution, kernelflinger detected and set vqueues to virtio block device. However, kernel will probe virtio device again, and kernel returns error if vqueues have already been setup. As a workaround setup vqueues even if they have already set up. Tracked-On: OAM-119803 Signed-off-by: rajucm <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
As a workaround remove support for X86_FEATURE_MSR_SPEC_CTRL in QNX. Tracked-On: OAM-119803 Signed-off-by: rajucm <[email protected]> Signed-off-by: Zhong, Fangjian <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
As a workaround disable waitpkg & tme which not supported by QNX. Tracked-On: OAM-119803 Signed-off-by: rajucm <[email protected]> Signed-off-by: Yuanyuan Zhao <[email protected]>
OPTEE synced with the REE world through vdev shm mechanism. Tracked-On: OAM-124009 Signed-off-by: jizhenlo <[email protected]>
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Test done: 1. adb reboot twice successfully. 2. power on, power off work normally. 3. adb, BT, Wi-Fi audio work normally. Tracked-On: OAM-124023 Signed-off-by: Zhao, Shirley <[email protected]>
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Exposing allow_p2p capability allows user space (e.g., hwcomposer) to detect whether local memory buffer is optimal for scanning out. Tracked-On: OAM-124505 Signed-off-by: Weifeng Liu <[email protected]>
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