Fixes: 35164034e390 ("arm64/vmm: Make remaining registers use hypctx_*_sys_reg")
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| sys/conf/files.arm64 | ||
|---|---|---|
| 186 |
Yes. I have a patch for that, I will submit.
I did not see a way to compile it statically into riscv either. options.riscv does not have VMM? About all this, I am also unsure when you should write device vmm (and when/if that compiles the files) vs options VMM. From what I understand, device is for literal/pseudo hardware devices/drivers, and options is for general subsystems. | |
| sys/conf/files.arm64 | ||
|---|---|---|
| 186 | Hum. I am not sure how this works to be honest. I can add device vmm to sys/riscv/conf/GENERIC, and the kernel builds but fails to link (because vmm_vm.c is missing). It may be that there is no authoritative list of kernel devices, I think config(8) just verifies that there is some source file in sys/conf/files* that depends on a given device. As far as I know options and device are basically the same thing now. I think config(8) used to emit some extra glue code for devices, before it was possible for drivers to dynamically register nodes in /dev during boot. I think the options* files are only used to generate the LINT configuration files, they are not authoritative. | |
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| sys/conf/files.arm64 | ||
|---|---|---|
| 186 | Hmm, that makes sense. I guess the only time you'd use options would be when you need conditional includes provided via the opt_[name].h file. | |
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I tried cross-compiling an arm64 kernel from amd64 with "device vmm" in sys/arm64/conf/GENERIC, and I see an error:
> make -j32 -s buildkernel TARGET=arm64 WITH_CLEAN=
make[1]: /home/markj/sb/claude/src/Makefile.inc1:369: SYSTEM_COMPILER: Determined that CC=/usr/local/bin/ccache cc matches the source tree. Not bootstrapping a cross-compiler.
make[1]: /home/markj/sb/claude/src/Makefile.inc1:376: SYSTEM_LINKER: libclang will be built for bootstrapping a cross-linker.
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>>> Kernel build for GENERIC started on Mon Aug 10 16:37:39 UTC 2026
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===> GENERIC
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>>> stage 1: configuring the kernel
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Kernel build directory is /home/markj/sb/claude/obj/home/markj/sb/claude/src/arm64.aarch64/sys/GENERIC
Don't forget to do ``make cleandepend && make depend''
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>>> stage 2.1: cleaning up the object tree
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0.51 real 5.77 user 5.84 sys
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>>> stage 2.3: build tools
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0.06 real 0.04 user 0.01 sys
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>>> stage 3.1: building everything
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make[2]: Graph cycles through `hyp_assym.h'
make[2]: Graph cycles through `hyp_genassym.o'
`opt_global.h' is up to dateComment Actions
Looks good. I tested bhyve on an arm64 box with this patch and "device vmm" configured.