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Marcin Juszkiewicz 449dca6ac9 pcie: enable Extended tag field support ... >From what I read PCI has 32 transactions, PCI Express devices can handle 256 with Extended tag enabled (spec mentions also larger values but I lack PCIe knowledge). QEMU leaves 'Extended tag field' with 0 as value: Capabilities: [e0] Express (v1) Root Complex Integrated Endpoint, IntMsgNum 0 DevCap: MaxPayload 128 bytes, PhantFunc 0 ExtTag- RBE+ FLReset- TEE-IO- SBSA ACS has test 824 which checks for PCIe device capabilities. BSA specification [1] (SBSA is on top of BSA) in section F.3.2 lists expected values for Device Capabilities Register: Device Capabilities Register Requirement Role based error reporting RCEC and RCiEP: Hardwired to 1 Endpoint L0s acceptable latency RCEC and RCiEP: Hardwired to 0 L1 acceptable latency RCEC and RCiEP: Hardwired to 0 Captured slot power limit scale RCEC and RCiEP: Hardwired to 0 Captured slot power limit value RCEC and RCiEP: Hardwired to 0 Max payload size value must be compliant with PCIe spec Phantom functions RCEC and RCiEP: Recommendation is to hardwire this bit to 0. Extended tag field Hardwired to 1 1. https://developer.arm.com/documentation/den0094/c/ This change enables Extended tag field. All versioned platforms should have it disabled for older versions (tested with Arm/virt). Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org> Message-Id: <20241023113820.486017-1-marcin.juszkiewicz@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		4 weeks ago
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Kconfig	kconfig: Add PCIe devices to s390x machines	1 year ago
meson.build	meson: remove CONFIG_ALL	11 months ago
msi.c	hw/pci/msi: Restrict xen_is_pirq_msi() call to Xen	9 months ago
msix.c	hw/pci: Constify VMState	11 months ago
pci-hmp-cmds.c	hw/pci/pci-hmp-cmds: Avoid displaying bogus size in 'info pci'	3 months ago
pci-internal.h	hw/pci/aer: Make PCIE AER error injection facility available for other emulation to use.	2 years ago
pci-qmp-cmds.c	pci: Move QMP commands to new hw/pci/pci-qmp-cmds.c	2 years ago
pci-stub.c	hw/pci: remove return after g_assert_not_reached()	2 months ago
pci.c	pcie: enable Extended tag field support	4 weeks ago
pci_bridge.c	virtio-pci: fix memory_region_find for VirtIOPCIRegion's MR	4 weeks ago
pci_host.c	Revert "hw/pci: Rename has_power to enabled"	4 months ago
pcie.c	pcie: enable Extended tag field support	4 weeks ago
pcie_aer.c	hw/pci: Constify VMState	11 months ago
pcie_doe.c	hw/pci: PCIe Data Object Exchange emulation	2 years ago
pcie_host.c	include/hw/pci: Split pci_device.h off pci.h	2 years ago
pcie_port.c	hw/pci: Remove unused pcie_chassis_find_slot	2 months ago
pcie_sriov.c	Revert "pcie_sriov: Do not manually unrealize"	4 months ago
shpc.c	hw/pci: add some convenient trace-events for pcie and shpc hotplug	9 months ago
slotid_cap.c	include/hw/pci: Split pci_device.h off pci.h	2 years ago
trace-events	Revert "pcie_sriov: Remove num_vfs from PCIESriovPF"	4 months ago
trace.h	trace: switch position of headers to what Meson requires	4 years ago