Qemu sdhci-pci device can't be recognized by Linux kernel

[Li, Yong]

Hello,

QEMU virt platform of RISCV-64 can emulate the mmc device by using below 
parameters:
-device sdhci-pci,sd-spec-version=3 \
-drive if=none,file=disk.img,format=raw,id=MMC1 \
-device sd-card,drive=MMC1

And as to u-boot, it do can recognize the mmc device and load the linux kernel 
from the sdcard partition.
But the mmc device can't be recognized by the linux kernel so that the root 
filesystem in the sdcard can't be loaded.

The logs are as below, any thoughts ? Thanks 


Starting kernel ...

[    0.000000] Linux version 6.7.0-rc3-g2bb52284d571-dirty 
(intel@intel-OptiPlex-7090) (riscv64-linux-gnu-gcc (Ubuntu 
9.4.0-1ubuntu1~20.04) 9.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #11 SMP Tue 
Feb 27 16:04:26 CST 2024
[    0.000000] random: crng init done
[    0.000000] Machine model: riscv-virtio,qemu
[    0.000000] SBI specification v1.0 detected
[    0.000000] SBI implementation ID=0x1 Version=0x10003
[    0.000000] SBI TIME extension detected
[    0.000000] SBI IPI extension detected
[    0.000000] SBI RFENCE extension detected
[    0.000000] earlycon: ns16550a0 at MMIO 0x0000000010000000 (options '')
[    0.000000] printk: legacy bootconsole [ns16550a0] enabled
[    0.000000] efi: UEFI not found.
[    0.000000] OF: reserved mem: 0x0000000080000000..0x000000008003ffff (256 
KiB) nomap non-reusable mmode_resv1@80000000
[    0.000000] OF: reserved mem: 0x0000000080040000..0x000000008005ffff (128 
KiB) nomap non-reusable mmode_resv0@80040000
[    0.000000] Zone ranges:
[    0.000000]   DMA32    [mem 0x0000000080000000-0x00000000ffffffff]
[    0.000000]   Normal   [mem 0x0000000100000000-0x000000017fffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000080000000-0x000000008005ffff]
[    0.000000]   node   0: [mem 0x0000000080060000-0x000000017fffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x000000017fffffff]
[    0.000000] SBI HSM extension detected
[    0.000000] CPU with hartid=1 is not available
[    0.000000] Falling back to deprecated "riscv,isa"
[    0.000000] riscv: base ISA extensions acdfhim
[    0.000000] riscv: ELF capabilities acdfim
[    0.000000] percpu: Embedded 20 pages/cpu s41976 r8192 d31752 u81920
[    0.000000] Kernel command line: root=/dev/vda1 ro earlycon 
console=ttyS0,115200n8
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 
bytes, linear)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, 
linear)
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 1032192
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: area num 1.
[    0.000000] software IO TLB: mapped [mem 
0x00000000faec6000-0x00000000feec6000] (64MB)
[    0.000000] Virtual kernel memory layout:
[    0.000000]       fixmap : 0xff1bfffffea00000 - 0xff1bffffff000000   (6144 
kB)
[    0.000000]       pci io : 0xff1bffffff000000 - 0xff1c000000000000   (  16 
MB)
[    0.000000]      vmemmap : 0xff1c000000000000 - 0xff20000000000000   (1024 
TB)
[    0.000000]      vmalloc : 0xff20000000000000 - 0xff60000000000000   (16384 
TB)
[    0.000000]      modules : 0xffffffff01589000 - 0xffffffff80000000   (2026 
MB)
[    0.000000]       lowmem : 0xff60000000000000 - 0xff60000100000000   (4096 
MB)
[    0.000000]       kernel : 0xffffffff80000000 - 0xffffffffffffffff   (2047 
MB)
[    0.000000] Memory: 4016708K/4194304K available (9472K kernel code, 4986K 
rwdata, 4096K rodata, 2222K init, 502K bss, 177596K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=1.
[    0.000000] rcu:     RCU debug extended QS entry/exit.
[    0.000000]  Tracing variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 
jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] riscv-intc: 64 local interrupts mapped using AIA
[    0.000000] riscv-imsic: imsics@28000000: invalid cpuid for parent irq1
[    0.000000] riscv-imsic: imsics@28000000: providing IPIs using interrupt 1
[    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[    0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff 
max_cycles: 0x24e6a1710, max_idle_ns: 440795202120 ns
[    0.000084] sched_clock: 64 bits at 10MHz, resolution 100ns, wraps every 
4398046511100ns
[    0.000338] riscv-timer: Timer interrupt in S-mode is available via sstc 
extension
[    0.005139] Console: colour dummy device 80x25
[    0.008888] Calibrating delay loop (skipped), value calculated using timer 
frequency.. 20.00 BogoMIPS (lpj=40000)
[    0.009171] pid_max: default: 32768 minimum: 301
[    0.010237] LSM: initializing lsm=capability,integrity
[    0.014518] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, 
linear)
[    0.014778] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 
bytes, linear)
[    0.033936] CPU node for /cpus/cpu@1 exist but the possible cpu range is :0
[    0.044500] RCU Tasks Trace: Setting shift to 0 and lim to 1 
rcu_task_cb_adjust=1.
[    0.045051] riscv: ELF compat mode supported
[    0.045275] ASID allocator using 16 bits (65536 entries)
[    0.046454] rcu: Hierarchical SRCU implementation.
[    0.046577] rcu:     Max phase no-delay instances is 1000.
[    0.048704] EFI services will not be available.
[    0.050031] smp: Bringing up secondary CPUs ...
[    0.051095] smp: Brought up 1 node, 1 CPU
[    0.063329] devtmpfs: initialized
[    0.074382] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, 
max_idle_ns: 7645041785100000 ns
[    0.074689] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
[    0.076688] pinctrl core: initialized pinctrl subsystem
[    0.080864] sse: Missing SBI SSE extension
[    0.082410] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.090488] DMA: preallocated 512 KiB GFP_KERNEL pool for atomic allocations
[    0.091007] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA32 pool for atomic 
allocations
[    0.091370] audit: initializing netlink subsys (disabled)
[    0.094571] thermal_sys: Registered thermal governor 'step_wise'
[    0.095183] audit: type=2000 audit(0.084:1): state=initialized 
audit_enabled=0 res=1
[    0.095906] cpuidle: using governor menu
[    0.120192] cpu0: Ratio of byte access time to unaligned word access is 
7.30, unaligned accesses are fast
[    0.121054] riscv-rpxy: SBI RPXY extension detected
[    0.143014] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages
[    0.143168] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page
[    0.147680] ACPI: Interpreter disabled.
[    0.148204] iommu: Default domain type: Translated
[    0.148299] iommu: DMA domain TLB invalidation policy: strict mode
[    0.150202] SCSI subsystem initialized
[    0.152031] usbcore: registered new interface driver usbfs
[    0.152332] usbcore: registered new interface driver hub
[    0.152545] usbcore: registered new device driver usb
[    0.154011] Advanced Linux Sound Architecture Driver Initialized.
[    0.164653] vgaarb: loaded
[    0.168952] clocksource: Switched to clocksource riscv_clocksource
[    0.170805] pnp: PnP ACPI: disabled
[    0.187515] NET: Registered PF_INET protocol family
[    0.188635] IP idents hash table entries: 65536 (order: 7, 524288 bytes, 
linear)
[    0.196372] tcp_listen_portaddr_hash hash table entries: 2048 (order: 4, 
65536 bytes, linear)
[    0.196668] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, 
linear)
[    0.196857] TCP established hash table entries: 32768 (order: 6, 262144 
bytes, linear)
[    0.197276] TCP bind hash table entries: 32768 (order: 9, 2097152 bytes, 
linear)
[    0.201318] TCP: Hash tables configured (established 32768 bind 32768)
[    0.202392] UDP hash table entries: 2048 (order: 5, 196608 bytes, linear)
[    0.202904] UDP-Lite hash table entries: 2048 (order: 5, 196608 bytes, 
linear)
[    0.204091] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    0.206864] RPC: Registered named UNIX socket transport module.
[    0.207015] RPC: Registered udp transport module.
[    0.207090] RPC: Registered tcp transport module.
[    0.207181] RPC: Registered tcp-with-tls transport module.
[    0.207256] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.207489] PCI: CLS 0 bytes, default 64
[    0.213042] workingset: timestamp_bits=46 max_order=20 bucket_order=0
[    0.214484] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.216473] NFS: Registering the id_resolver key type
[    0.217281] Key type id_resolver registered
[    0.217377] Key type id_legacy registered
[    0.217680] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.217865] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver 
Registering...
[    0.218602] 9p: Installing v9fs 9p2000 file system support
[    0.221381] NET: Registered PF_ALG protocol family
[    0.221731] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 
244)
[    0.221978] io scheduler mq-deadline registered
[    0.222128] io scheduler kyber registered
[    0.222306] io scheduler bfq registered
[    0.224296] riscv-imsic: imsics@28000000: hart-index-bits: 0,  
guest-index-bits: 0
[    0.224426] riscv-imsic: imsics@28000000: group-index-bits: 1, 
group-index-shift: 24
[    0.224566] riscv-imsic: imsics@28000000: per-CPU IDs 255 at base PPN 
0x0000000028000000
[    0.224711] riscv-imsic: imsics@28000000: total 254 interrupts available
[    0.227558] pci-host-generic 30000000.pci: host bridge /soc/pci@30000000 
ranges:
[    0.228230] pci-host-generic 30000000.pci:       IO 
0x0003000000..0x000300ffff -> 0x0000000000
[    0.228676] pci-host-generic 30000000.pci:      MEM 
0x0040000000..0x007fffffff -> 0x0040000000
[    0.228857] pci-host-generic 30000000.pci:      MEM 
0x0400000000..0x07ffffffff -> 0x0400000000
[    0.229362] pci-host-generic 30000000.pci: Memory resource size exceeds max 
for 32 bits
[    0.229814] pci-host-generic 30000000.pci: ECAM at [mem 
0x30000000-0x3fffffff] for [bus 00-ff]
[    0.232176] pci-host-generic 30000000.pci: PCI host bridge to bus 0000:00
[    0.232487] pci_bus 0000:00: root bus resource [bus 00-ff]
[    0.232634] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    0.232765] pci_bus 0000:00: root bus resource [mem 0x40000000-0x7fffffff]
[    0.232899] pci_bus 0000:00: root bus resource [mem 0x400000000-0x7ffffffff]
[    0.234091] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000
[    0.236786] pci 0000:00:01.0: [1b36:0007] type 00 class 0x080501
[    0.237291] pci 0000:00:01.0: reg 0x10: [mem 0x40000000-0x400000ff]
[    0.239022] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000
[    0.239705] pci 0000:00:02.0: reg 0x10: [io  0x1000-0x101f]
[    0.240324] pci 0000:00:02.0: reg 0x14: [mem 0x40001000-0x40001fff]
[    0.242455] pci 0000:00:02.0: reg 0x20: [mem 0x40004000-0x40007fff 64bit 
pref]
[    0.243046] pci 0000:00:02.0: reg 0x30: [mem 0x40040000-0x4007ffff pref]
[    0.245209] pci 0000:00:02.0: BAR 6: assigned [mem 0x40000000-0x4003ffff 
pref]
[    0.245492] pci 0000:00:02.0: BAR 4: assigned [mem 0x400000000-0x400003fff 
64bit pref]
[    0.245989] pci 0000:00:02.0: BAR 1: assigned [mem 0x40040000-0x40040fff]
[    0.246294] pci 0000:00:01.0: BAR 0: assigned [mem 0x40041000-0x400410ff]
[    0.246655] pci 0000:00:02.0: BAR 0: assigned [io  0x0020-0x003f]
[    0.252094] clk-sbi-rpxy soc:sbi-rpxy-clk: RPMI Clock Service Group Probe 
Failed
[    0.255411] irq: no irq domain found for aplic@d008000 !
[    0.338181] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    0.347886] SuperH (H)SCI(F) driver initialized
[    0.363037] loop: module loaded
[    0.373271] genirq: irq_chip IMSIC-PCI did not update eff. affinity mask of 
irq 11
[    0.378037] e1000e: Intel(R) PRO/1000 Network Driver
[    0.378140] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[    0.380675] usbcore: registered new interface driver uas
[    0.380903] usbcore: registered new interface driver usb-storage
[    0.381666] mousedev: PS/2 mouse device common for all mice
[    0.384073] sdhci: Secure Digital Host Controller Interface driver
[    0.384182] sdhci: Copyright(c) Pierre Ossman
[    0.384361] sdhci-pltfm: SDHCI platform and OF driver helper
[    0.385528] usbcore: registered new interface driver usbhid
[    0.385646] usbhid: USB HID core driver
[    0.386192] riscv-pmu-sbi: SBI PMU extension is available
[    0.386646] riscv-pmu-sbi: 16 firmware and 18 hardware counters
[    0.386789] riscv-pmu-sbi: Perf sampling/filtering is not supported as sscof 
extension is not available
[    0.387628] irq: no irq domain found for aplic@d008000 !
[    0.387809] sdhci-pci 0000:00:01.0: SDHCI controller found [1b36:0007] (rev 
0)
[    0.417829] mmc0: Failed to request IRQ 0: -22
[    0.421338] sdhci-pci: probe of 0000:00:01.0 failed with error -22


Thanks,
Yong Li