Mark Johnston e17eca3276 vmm: Avoid embedding cpuset_t ioctl ABIs ... Commit 0bda8d3e9f ("vmm: permit some IPIs to be handled by userspace") embedded cpuset_t into the vmm(4) ioctl ABI. This was a mistake since we otherwise have some leeway to change the cpuset_t for the whole system, but we want to keep the vmm ioctl ABI stable. Rework IPI reporting to avoid this problem. Along the way, make VM_RUN a bit more efficient: - Split vmexit metadata out of the main VM_RUN structure. This data is only written by the kernel. - Have userspace pass a cpuset_t pointer and cpusetsize in the VM_RUN structure, as is done for cpuset syscalls. - Have the destination CPU mask for VM_EXITCODE_IPIs live outside the vmexit info structure, and make VM_RUN copy it out separately. Zero out any extra bytes in the CPU mask, like cpuset syscalls do. - Modify the vmexit handler prototype to take a full VM_RUN structure. PR: 271330 Reviewed by: corvink, jhb (previous versions) Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D40113		2023-05-23 21:15:59 -04:00
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internal.h	libvmmapi: Add a struct vcpu and use it in most APIs.	2023-03-24 11:49:06 -07:00
Makefile	libvmmapi: Add a struct vcpu and use it in most APIs.	2023-03-24 11:49:06 -07:00
Makefile.depend	Update/fix Makefile.depend for userland	2023-04-18 17:14:23 -07:00
vmmapi_freebsd.c	spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD	2023-05-12 10:44:03 -06:00
vmmapi.c	vmm: Avoid embedding cpuset_t ioctl ABIs	2023-05-23 21:15:59 -04:00
vmmapi.h	vmm: Avoid embedding cpuset_t ioctl ABIs	2023-05-23 21:15:59 -04:00