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Sat, 28 Sep 2024 01:58:16 -0700 (PDT) From: Phil Dennis-Jordan To: qemu-devel@nongnu.org Cc: agraf@csgraf.de, phil@philjordan.eu, peter.maydell@linaro.org, pbonzini@redhat.com, rad@semihalf.com, quic_llindhol@quicinc.com, marcin.juszkiewicz@linaro.org, stefanha@redhat.com, mst@redhat.com, slp@redhat.com, richard.henderson@linaro.org, eduardo@habkost.net, marcel.apfelbaum@gmail.com, gaosong@loongson.cn, jiaxun.yang@flygoat.com, chenhuacai@kernel.org, kwolf@redhat.com, hreitz@redhat.com, philmd@linaro.org, shorne@gmail.com, palmer@dabbelt.com, alistair.francis@wdc.com, bmeng.cn@gmail.com, liwei1518@gmail.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, jcmvbkbc@gmail.com, marcandre.lureau@redhat.com, berrange@redhat.com, akihiko.odaki@daynix.com, qemu-arm@nongnu.org, qemu-block@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v3 02/14] hw/display/apple-gfx: Adds PCI implementation Date: Sat, 28 Sep 2024 10:57:15 +0200 Message-Id: <20240928085727.56883-3-phil@philjordan.eu> X-Mailer: git-send-email 2.39.3 (Apple Git-145) In-Reply-To: <20240928085727.56883-1-phil@philjordan.eu> References: <20240928085727.56883-1-phil@philjordan.eu> MIME-Version: 1.0 Received-SPF: neutral client-ip=2a00:1450:4864:20::42c; envelope-from=phil@philjordan.eu; helo=mail-wr1-x42c.google.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, SPF_HELO_NONE=0.001, SPF_NEUTRAL=0.779 autolearn=no 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 This change wires up the PCI variant of the paravirtualised graphics device, mainly useful for x86-64 macOS guests, implemented by macOS's ParavirtualizedGraphics.framework. It builds on code shared with the vmapple/mmio variant of the PVG device. Signed-off-by: Phil Dennis-Jordan --- hw/display/Kconfig | 5 ++ hw/display/apple-gfx-pci.m | 138 +++++++++++++++++++++++++++++++++++++ hw/display/meson.build | 1 + 3 files changed, 144 insertions(+) create mode 100644 hw/display/apple-gfx-pci.m diff --git a/hw/display/Kconfig b/hw/display/Kconfig index 179a479d220..c2ec268f8e9 100644 --- a/hw/display/Kconfig +++ b/hw/display/Kconfig @@ -152,3 +152,8 @@ config MAC_PVG_VMAPPLE bool depends on MAC_PVG depends on ARM + +config MAC_PVG_PCI + bool + depends on MAC_PVG && PCI + default y if PCI_DEVICES diff --git a/hw/display/apple-gfx-pci.m b/hw/display/apple-gfx-pci.m new file mode 100644 index 00000000000..9370258ee46 --- /dev/null +++ b/hw/display/apple-gfx-pci.m @@ -0,0 +1,138 @@ +/* + * QEMU Apple ParavirtualizedGraphics.framework device, PCI variant + * + * Copyright © 2023-2024 Phil Dennis-Jordan + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + * ParavirtualizedGraphics.framework is a set of libraries that macOS provides + * which implements 3d graphics passthrough to the host as well as a + * proprietary guest communication channel to drive it. This device model + * implements support to drive that library from within QEMU as a PCI device + * aimed primarily at x86-64 macOS VMs. + */ + +#include "apple-gfx.h" +#include "hw/pci/pci_device.h" +#include "hw/pci/msi.h" +#include "qapi/error.h" +#include "trace.h" +#import + +typedef struct AppleGFXPCIState { + PCIDevice parent_obj; + + AppleGFXState common; +} AppleGFXPCIState; + +OBJECT_DECLARE_SIMPLE_TYPE(AppleGFXPCIState, APPLE_GFX_PCI) + +static const char* apple_gfx_pci_option_rom_path = NULL; + +static void apple_gfx_init_option_rom_path(void) +{ + NSURL *option_rom_url = PGCopyOptionROMURL(); + const char *option_rom_path = option_rom_url.fileSystemRepresentation; + if (option_rom_url.fileURL && option_rom_path != NULL) { + apple_gfx_pci_option_rom_path = g_strdup(option_rom_path); + } + [option_rom_url release]; +} + +static void apple_gfx_pci_init(Object *obj) +{ + AppleGFXPCIState *s = APPLE_GFX_PCI(obj); + + if (!apple_gfx_pci_option_rom_path) { + /* Done on device not class init to avoid -daemonize ObjC fork crash */ + PCIDeviceClass *pci = PCI_DEVICE_CLASS(object_get_class(obj)); + apple_gfx_init_option_rom_path(); + pci->romfile = apple_gfx_pci_option_rom_path; + } + + apple_gfx_common_init(obj, &s->common, TYPE_APPLE_GFX_PCI); +} + +static void apple_gfx_pci_interrupt(PCIDevice *dev, AppleGFXPCIState *s, + uint32_t vector) +{ + bool msi_ok; + trace_apple_gfx_raise_irq(vector); + + msi_ok = msi_enabled(dev); + if (msi_ok) { + msi_notify(dev, vector); + } +} + +static void apple_gfx_pci_realize(PCIDevice *dev, Error **errp) +{ + AppleGFXPCIState *s = APPLE_GFX_PCI(dev); + Error *err = NULL; + int ret; + + pci_register_bar(dev, PG_PCI_BAR_MMIO, + PCI_BASE_ADDRESS_SPACE_MEMORY, &s->common.iomem_gfx); + + ret = msi_init(dev, 0x0 /* config offset; 0 = find space */, + PG_PCI_MAX_MSI_VECTORS, true /* msi64bit */, + false /*msi_per_vector_mask*/, &err); + if (ret != 0) { + error_propagate(errp, err); + return; + } + + @autoreleasepool { + PGDeviceDescriptor *desc = [PGDeviceDescriptor new]; + desc.raiseInterrupt = ^(uint32_t vector) { + apple_gfx_pci_interrupt(dev, s, vector); + }; + + apple_gfx_common_realize(&s->common, desc); + [desc release]; + desc = nil; + } +} + +static void apple_gfx_pci_reset(Object *obj, ResetType type) +{ + AppleGFXPCIState *s = APPLE_GFX_PCI(obj); + [s->common.pgdev reset]; +} + +static void apple_gfx_pci_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *pci = PCI_DEVICE_CLASS(klass); + ResettableClass *rc = RESETTABLE_CLASS(klass); + + assert(rc->phases.hold == NULL); + rc->phases.hold = apple_gfx_pci_reset; + dc->desc = "macOS Paravirtualized Graphics PCI Display Controller"; + dc->hotpluggable = false; + set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); + + pci->vendor_id = PG_PCI_VENDOR_ID; + pci->device_id = PG_PCI_DEVICE_ID; + pci->class_id = PCI_CLASS_DISPLAY_OTHER; + pci->realize = apple_gfx_pci_realize; + + // TODO: Property for setting mode list +} + +static TypeInfo apple_gfx_pci_types[] = { + { + .name = TYPE_APPLE_GFX_PCI, + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(AppleGFXPCIState), + .class_init = apple_gfx_pci_class_init, + .instance_init = apple_gfx_pci_init, + .interfaces = (InterfaceInfo[]) { + { INTERFACE_PCIE_DEVICE }, + { }, + }, + } +}; +DEFINE_TYPES(apple_gfx_pci_types) + diff --git a/hw/display/meson.build b/hw/display/meson.build index 70d855749c0..ceb7bb07612 100644 --- a/hw/display/meson.build +++ b/hw/display/meson.build @@ -67,6 +67,7 @@ system_ss.add(when: 'CONFIG_ATI_VGA', if_true: [files('ati.c', 'ati_2d.c', 'ati_ system_ss.add(when: 'CONFIG_MAC_PVG', if_true: [files('apple-gfx.m'), pvg, metal]) system_ss.add(when: 'CONFIG_MAC_PVG_VMAPPLE', if_true: [files('apple-gfx-vmapple.m'), pvg, metal]) +system_ss.add(when: 'CONFIG_MAC_PVG_PCI', if_true: [files('apple-gfx-pci.m'), pvg, metal]) if config_all_devices.has_key('CONFIG_VIRTIO_GPU') virtio_gpu_ss = ss.source_set()