Changes in Kconfig

24ffa71b - um: virt-pci: Refactor virtio_pcidev into its own module

Sat, 15 Mar 2025 16:19:09 +0000

um: virt-pci: Refactor virtio_pcidev into its own moduleDecouple virt-pci and virtio_pcidev, refactoring virtio_pcidev intoits own module. Define a set of APIs for virt-pci. This allows forfuture addition of more PCI emulation implementations.Signed-off-by: Tiwei Bie Link: https://patch.msgid.link/20250315161910.4082396-3-tiwei.btw@antgroup.comSigned-off-by: Johannes Berg List of files: /linux-6.15/arch/um/drivers/Kconfig

12b8e7e6 - um: Remove obsolete pcap driver

Thu, 28 Mar 2024 13:24:24 +0000

um: Remove obsolete pcap driverRemove the pcap driver in UML. It is obsolete. It does not build onrecent systems due to changes in libpcap and its dependencies.The vector driver's raw transport in UML provides identicalfunctionality.Signed-off-by: Anton Ivanov Link: https://patch.msgid.link/20240328132424.376456-1-anton.ivanov@cambridgegreys.comSigned-off-by: Johannes Berg List of files: /linux-6.15/arch/um/drivers/Kconfig

db4bfcba - um: Fix hostaudio build errors

Wed, 02 Aug 2023 05:15:00 +0000

um: Fix hostaudio build errorsUse "select" to ensure that the required kconfig symbols are setas expected.Drop HOSTAUDIO since it is now equivalent to UML_SOUND.Set CONFIG_SOUND=m in ARCH=um defconfig files to maintain thestatus quo of the default configs.Allow SOUND with UML regardless of HAS_IOMEM. Otherwise there is akconfig warning for unmet dependencies. (This was not an issue whenSOUND was defined in arch/um/drivers/Kconfig. I have done 50 randconfigbuilds and didn't find any issues.)This fixes build errors when CONFIG_SOUND is not set:ld: arch/um/drivers/hostaudio_kern.o: in function `hostaudio_cleanup_module':hostaudio_kern.c:(.exit.text+0xa): undefined reference to `unregister_sound_mixer'ld: hostaudio_kern.c:(.exit.text+0x15): undefined reference to `unregister_sound_dsp'ld: arch/um/drivers/hostaudio_kern.o: in function `hostaudio_init_module':hostaudio_kern.c:(.init.text+0x19): undefined reference to `register_sound_dsp'ld: hostaudio_kern.c:(.init.text+0x31): undefined reference to `register_sound_mixer'ld: hostaudio_kern.c:(.init.text+0x49): undefined reference to `unregister_sound_dsp'and this kconfig warning:WARNING: unmet direct dependencies detected for SOUNDFixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")Fixes: d886e87cb82b ("sound: make OSS sound core optional")Signed-off-by: Randy Dunlap Reported-by: kernel test robot Closes: lore.kernel.org/r/202307141416.vxuRVpFv-lkp@intel.comCc: Richard Weinberger Cc: Anton Ivanov Cc: Johannes Berg Cc: linux-um@lists.infradead.orgCc: Tejun Heo Cc: Takashi Iwai Cc: Jaroslav Kysela Cc: Masahiro Yamada Cc: Nathan Chancellor Cc: Nick Desaulniers Cc: Nicolas Schier Cc: linux-kbuild@vger.kernel.orgCc: alsa-devel@alsa-project.orgReviewed-by: Masahiro Yamada Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

910dba41 - um: Prevent building modules incompatible with MODVERSIONS

Fri, 13 Jan 2023 04:49:09 +0000

um: Prevent building modules incompatible with MODVERSIONSThe manual ld invocation in arch/um/drivers doesn't play nicely withgenksyms. Given the problematic modules are deprecated anyway, justprevent building them when using MODVERSIONS.e.g.MODPOST Module.symversarch/um/drivers/.pcap.o.cmd: No such file or directorySigned-off-by: Peter Foley Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

a474d3fb - PCI/MSI: Get rid of PCI_MSI_IRQ_DOMAIN

Fri, 11 Nov 2022 13:54:38 +0000

PCI/MSI: Get rid of PCI_MSI_IRQ_DOMAINWhat a zoo: PCI_MSI select GENERIC_MSI_IRQ PCI_MSI_IRQ_DOMAIN def_bool y depends on PCI_MSI select GENERIC_MSI_IRQ_DOMAINErgo PCI_MSI enables PCI_MSI_IRQ_DOMAIN which in turn selectsGENERIC_MSI_IRQ_DOMAIN. So all the dependencies on PCI_MSI_IRQ_DOMAIN arejust an indirection to PCI_MSI.Match the reality and just admit that PCI_MSI requiresGENERIC_MSI_IRQ_DOMAIN.Signed-off-by: Thomas Gleixner Reviewed-by: Jason Gunthorpe Acked-by: Bjorn Helgaas Link: https://lore.kernel.org/r/20221111122014.467556921@linutronix.de List of files: /linux-6.15/arch/um/drivers/Kconfig

e7d523f8 - um/drivers: Kconfig: Fix indentation

Wed, 25 May 2022 12:50:01 +0000

um/drivers: Kconfig: Fix indentationThe convention for indentation seems to be a single tab. Help text isfurther indented by an additional two whitespaces. Fix the lines thatviolate these rules.Signed-off-by: Juerg Haefliger Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

b0cbccf4 - um: daemon: Make default socket configurable

Thu, 24 Mar 2022 12:13:44 +0000

um: daemon: Make default socket configurableEven if daemon network is deprecated, some configurations maystill use it (e.g. Debian), and not want to default to the/tmp/uml.ctl socket location. Allow configuring the defaultsocket location.Signed-off-by: Johannes Berg Acked-By: Anton Ivanov Tested-by: Ritesh Raj Sarraf Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

16aa835a - um: xterm: Make default terminal emulator configurable

Thu, 24 Mar 2022 12:13:43 +0000

um: xterm: Make default terminal emulator configurableMake the default terminal emulator configurable so e.g.Debian can set it to x-terminal-emulator instead of thecurrent default of xterm.Signed-off-by: Johannes Berg Acked-By: Anton Ivanov Tested-by: Ritesh Raj Sarraf Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

68f5d3f3 - um: add PCI over virtio emulation driver

Fri, 05 Mar 2021 12:19:58 +0000

um: add PCI over virtio emulation driverTo support testing of PCI/PCIe drivers in UML, add a PCI bussupport driver. This driver uses virtio, which in UML is reallyjust vhost-user, to talk to devices, and adds the devices tothe virtual PCI bus in the system.Since virtio already allows DMA/bus mastering this really isn'tall that hard, of course we need the logic_iomem infrastructurethat was added by a previous patch.The protocol to talk to the device is has a few fairly simplemessages for reading to/writing from config and IO spaces, andmessages for the device to send the various interrupts (INT#,MSI/MSI-X and while suspended PME#).Note that currently no offical virtio device ID is assigned forthis protocol, as a consequence this patch requires defining itin the Kconfig, with a default that makes the driver refuse towork at all.Finally, in order to add support for MSI/MSI-X interrupts, somesmall changes are needed in the UML IRQ code, it needs to havemore interrupts, changing NR_IRQS from 64 to 128 if this driveris enabled, but not actually use them for anything so that thegeneric IRQ domain/MSI infrastructure can allocate IRQ numbers.Signed-off-by: Johannes Berg Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

dde8b58d - um: add a pseudo RTC

Fri, 15 Jan 2021 12:12:18 +0000

um: add a pseudo RTCAdd a pseudo RTC that simply is able to send an alarm signalwaking up the system at a given time in the future.Since apparently timerfd_create() FDs don't support SIGIO, weuse the sigio-creating helper thread, which just learned to dosuspend/resume properly in the previous patch.For time-travel mode, OTOH, just add an event at the specifiedtime in the future, and that's already sufficient to wake upthe system at that point in time since suspend will just be inan "endless wait".For s2idle support also call pm_system_wakeup().Signed-off-by: Johannes Berg Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

3a5f4154 - um: fix spelling mistake in Kconfig "privleges" -> "privileges"

Wed, 16 Dec 2020 11:47:55 +0000

um: fix spelling mistake in Kconfig "privleges" -> "privileges"There is a spelling mistake in the Kconfig help text. Fix it.Signed-off-by: Colin Ian King Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

730586ff - um: Allow static linking for non-glibc implementations

Sun, 19 Jul 2020 21:02:22 +0000

um: Allow static linking for non-glibc implementationsIt is possible to produce a statically linked UML binary with UML_NET_VECTOR,UML_NET_VDE and UML_NET_PCAP options enabled using alternative libcimplementations, which do not rely on NSS, such as musl.Allow static linking in this case.Signed-off-by: Ignat Korchagin Reviewed-by: Brendan Higgins Tested-by: Brendan Higgins Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

33631793 - um: Make CONFIG_STATIC_LINK actually static

Fri, 24 Jan 2020 22:14:01 +0000

um: Make CONFIG_STATIC_LINK actually staticCurrently, CONFIG_STATIC_LINK can be enabled with options which cannotbe statically linked, namely UML_NET_VECTOR, UML_NET_VDE, andUML_NET_PCAP; this is because glibc tries to load NSS which does notsupport being statically linked. So make CONFIG_STATIC_LINK depend on!UML_NET_VECTOR && !UML_NET_VDE && !UML_NET_PCAP.Link: https://lore.kernel.org/lkml/f658f317-be54-ed75-8296-c373c2dcc697@cambridgegreys.com/#tSigned-off-by: Brendan Higgins Acked-By: Anton Ivanov Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

40814b98 - um: Mark non-vector net transports as obsolete

Tue, 10 Dec 2019 22:34:03 +0000

um: Mark non-vector net transports as obsoleteUML_NET_VECTOR now supports filters compiled with pcap outside of UML;it also supports: EoGRE, EoL2TPv3, RAW (+/- BPF), TAP and BESS.While vector drivers are not 1:1 replacements for the existing drivers,you can achieve the same topologies and the same connectivity at muchhigher performance (2.5 to 9 Gbit on mid-range Ryzen desktop) - the olddrivers test out in the 500Mbit range on the same hardware.For all these reasons, the non-vector based transports are nowunnecessary, and some, most notably pcap and vde are maintenanceburdens. Thus, it makes sense to at least start thinking about removingthe non-vector transports, so for now, mark them as obsolete.Link: https://lore.kernel.org/lkml/15f048d3-07ab-61c1-c6e0-0712e626dd33@cambridgegreys.com/T/#uSuggested-by: Anton Ivanov Signed-off-by: Brendan Higgins Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

bf9f80cf - um: virtio_uml: Disallow modular build

Tue, 08 Oct 2019 15:43:21 +0000

um: virtio_uml: Disallow modular buildThis driver *can* be a module, but then its parameters (socket path)are untrusted data from inside the VM, and that isn't allowed. Allowthe code to only be built-in to avoid that.Fixes: 5d38f324993f ("um: drivers: Add virtio vhost-user driver")Signed-off-by: Johannes Berg Acked-by: Anton Ivanov Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

5d38f324 - um: drivers: Add virtio vhost-user driver

Wed, 11 Sep 2019 12:51:20 +0000

um: drivers: Add virtio vhost-user driverThis module allows virtio devices to be used over a vhost-user socket.Signed-off-by: Erel Geron Signed-off-by: Johannes Berg Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

75f24f78 - arch: um: drivers: Kconfig: pedantic formatting

Thu, 07 Mar 2019 22:22:37 +0000

arch: um: drivers: Kconfig: pedantic formattingFormatting of Kconfig files doesn't look so pretty, so justtake damp cloth and clean it up. Just indention changes.Signed-off-by: Enrico Weigelt, metux IT consult Signed-off-by: Richard Weinberger List of files: /linux-6.15/arch/um/drivers/Kconfig

9bea1801 - um: create a proper drivers Kconfig

Tue, 31 Jul 2018 11:39:28 +0000

um: create a proper drivers KconfigMerge arch/um/Kconfig.char and arch/um/Kconfig.net into a newarch/um/drivers/Kconfig. This fits the way Kconfig files are placedelsewhere in the kernel tree.Signed-off-by: Christoph Hellwig Acked-by: Richard Weinberger Signed-off-by: Masahiro Yamada List of files: /linux-6.15/arch/um/drivers/Kconfig