Hi, On 2015/5/19 10:40, Shannon Zhao wrote: > Hi, > > I'm testing PCIe root port (ioh3420) on ARM64. Firstly I use following > simple command line to check whether it works. > > qemu-system-aarch64 -M virt -device ioh3420 > > But it fails with below log: > > qemu-system-aarch64: -device ioh3420: Device initialization failed > qemu-system-aarch64: -device ioh3420: Device 'ioh3420' could not be > initialized >
I found that it fails at ioh3420_initfn when calling msi_init, while upstream qemu doesn't support msi on ARM64, so msi_init return -ENOTSUP and ioh3420_initfn fails. After I apply the following patch from Christoffer, the ioh3420 works. [PATCH v2 0/3] Add support for for GICv2m and MSIs to arm-virt But do we need to fix the failure for the current upstream qemu? > Is there something wrong with my command line? or ioh3420 can't be used > on ARM64? But from this patch and the discussions on it, it seems > ioh3420 should work on ARM64. > > Thanks, > Shannon > > On 2015/2/27 14:04, David Gibson wrote: >> The i82801b11, ioh3420 and xio3130 PCI Express devices are currently >> included in the build unconditionally. >> >> While they could theoretically appear on any target platform with PCI-E, >> they're pretty unlikely to appear on platforms that aren't Intel derived. >> >> Therefore, to avoid presenting unlikely-to-be-relevant devices to the user, >> add config options to enable these components, and enable them by default >> only on x86 and arm platforms. >> >> (Note that this patch does include these for aarch64, via its inclusion of >> arm-softmmu.mak). >> >> Signed-off-by: David Gibson <da...@gibson.dropbear.id.au> >> Reviewed-by: Peter Crosthwaite <peter.crosthwa...@xilinx.com> >> --- >> default-configs/arm-softmmu.mak | 4 ++++ >> default-configs/i386-softmmu.mak | 3 +++ >> default-configs/x86_64-softmmu.mak | 3 +++ >> hw/pci-bridge/Makefile.objs | 5 +++-- >> 4 files changed, 13 insertions(+), 2 deletions(-) >> >> diff --git a/default-configs/arm-softmmu.mak >> b/default-configs/arm-softmmu.mak >> index b00c2e1..6ee9b43 100644 >> --- a/default-configs/arm-softmmu.mak >> +++ b/default-configs/arm-softmmu.mak >> @@ -91,3 +91,7 @@ CONFIG_INTEGRATOR_DEBUG=y >> CONFIG_ALLWINNER_A10_PIT=y >> CONFIG_ALLWINNER_A10_PIC=y >> CONFIG_ALLWINNER_A10=y >> + >> +CONFIG_XIO3130=y >> +CONFIG_IOH3420=y >> +CONFIG_I82801B11=y >> diff --git a/default-configs/i386-softmmu.mak >> b/default-configs/i386-softmmu.mak >> index bd99af9..0b8ce4b 100644 >> --- a/default-configs/i386-softmmu.mak >> +++ b/default-configs/i386-softmmu.mak >> @@ -43,3 +43,6 @@ CONFIG_IOAPIC=y >> CONFIG_ICC_BUS=y >> CONFIG_PVPANIC=y >> CONFIG_MEM_HOTPLUG=y >> +CONFIG_XIO3130=y >> +CONFIG_IOH3420=y >> +CONFIG_I82801B11=y >> diff --git a/default-configs/x86_64-softmmu.mak >> b/default-configs/x86_64-softmmu.mak >> index e7c2734..6add04a 100644 >> --- a/default-configs/x86_64-softmmu.mak >> +++ b/default-configs/x86_64-softmmu.mak >> @@ -43,3 +43,6 @@ CONFIG_IOAPIC=y >> CONFIG_ICC_BUS=y >> CONFIG_PVPANIC=y >> CONFIG_MEM_HOTPLUG=y >> +CONFIG_XIO3130=y >> +CONFIG_IOH3420=y >> +CONFIG_I82801B11=y >> diff --git a/hw/pci-bridge/Makefile.objs b/hw/pci-bridge/Makefile.objs >> index 968b369..96c596e 100644 >> --- a/hw/pci-bridge/Makefile.objs >> +++ b/hw/pci-bridge/Makefile.objs >> @@ -1,5 +1,6 @@ >> common-obj-y += pci_bridge_dev.o >> -common-obj-y += ioh3420.o xio3130_upstream.o xio3130_downstream.o >> -common-obj-y += i82801b11.o >> +common-obj-$(CONFIG_XIO3130) += xio3130_upstream.o xio3130_downstream.o >> +common-obj-$(CONFIG_IOH3420) += ioh3420.o >> +common-obj-$(CONFIG_I82801B11) += i82801b11.o >> # NewWorld PowerMac >> common-obj-$(CONFIG_DEC_PCI) += dec.o >> > > > > . > -- Shannon
