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vm_arm: move vpci code to dedicated module
This calls vmm_pci_init() only when vpci is enabled. Signed-off-by: Axel Heider <[email protected]>
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Axel Heider
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Jan 28, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| /* | ||
| * Copyright 2023, Hensoldt Cyber | ||
| * | ||
| * SPDX-License-Identifier: BSD-2-Clause | ||
| */ | ||
|
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| #include <vmlinux.h> | ||
| #include <camkes.h> | ||
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| #include <sel4vmmplatsupport/ioports.h> | ||
| #include <sel4vmmplatsupport/arch/vpci.h> | ||
| #include <sel4vmmplatsupport/drivers/pci_helper.h> | ||
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| #include <libfdt.h> | ||
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| extern vmm_io_port_list_t *io_ports; | ||
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| /* Can't make this static, because others uses it */ | ||
| vmm_pci_space_t *pci = NULL; | ||
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| /* Various other modules can register PCI devices. Update the device tree | ||
| * eventually. | ||
| */ | ||
| int vpci_update_dtb(vm_t *vm, const vm_config_t *vm_config, void *dtb, | ||
| void *fdt, char const *gic_node) | ||
| { | ||
| if (!vm_config->generate_dtb) { | ||
| return 0; | ||
| } | ||
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| ZF_LOGF_IF(!fdt_ori, "fdt not set"); | ||
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| int gic_offset = fdt_path_offset(fdt, gic_node); | ||
| if (gic_offset < 0) { | ||
| ZF_LOGE("Failed to find gic node from path: %s", gic_node); | ||
| return -1; | ||
| } | ||
| int gic_phandle = fdt_get_phandle(fdt, gic_offset); | ||
| if (0 == gic_phandle) { | ||
| ZF_LOGE("Failed to find phandle in gic node (%d)", gic_phandle); | ||
| return -1; | ||
| } | ||
| int err = fdt_generate_vpci_node(vm, pci, dtb, gic_phandle); | ||
| if (err) { | ||
| ZF_LOGE("Couldn't generate vpci_node (%d)", err); | ||
| return -1; | ||
| } | ||
|
|
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| } | ||
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| static void vpci_init_module(vm_t *vm, void *cookie) | ||
| { | ||
| int err; | ||
|
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| err = vmm_pci_init(&pci); | ||
| if (err) { | ||
| ZF_LOGE("Failed to initialise vmm pci (%d)", err); | ||
| return; | ||
| } | ||
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| ZF_LOGF_IF(!io_ports, "io_ports not set"); | ||
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| err = vm_install_vpci(vm, io_ports, pci); | ||
| if (err) { | ||
| ZF_LOGE("Failed to install VPCI device (%d)", err); | ||
| return; | ||
| } | ||
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| } | ||
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| DEFINE_MODULE(vpci, NULL, vpci_init_module) |