src/sys/modules/vmm, branch main

arm64/vmm: Make remaining registers use hypctx_*_sys_reg

2026-07-06T15:18:30+00:00

Move vgic, timer and trapframe registers into sys_regs to handle them
in the same way as all the other registers.

Signed-off-by:	Kajetan Puchalski 
Reviewed by:	andrew
Sponsored by:	Arm Ltd
Differential Revision:	https://reviews.freebsd.org/D56556

vmm/arm64: Compile vmm_nvhe.c without SSP

2026-05-22T16:10:04+00:00

This file implements a set of EL2 hypercall handlers and is used to
switch between guests and the host kernel when VHE is not in use.  There
is no SSP runtime available there.

Reported by:	Jenkins
Fixes:		8deebce931fa ("kernel: Enable -fstack-protector-strong by default")

vmm: Deduplicate VM and vCPU state management code

2026-01-08T21:54:06+00:00

Now that the machine-independent fields of struct vm and struct vcpu are
available in a header, we can move lots of duplicated code into
sys/dev/vmm/vmm_vm.c.  This change does exactly that.

No functional change intended.

MFC after:	2 months
Sponsored by:	The FreeBSD Foundation
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D53585

sys/modules/vmm: ${CFLAGS:N-flto} -> ${CFLAGS:N-flto*}

2025-05-03T08:55:05+00:00

Fixes: 12a6257a96007222e5441d883709fca2a28febb5

Differential Revision: https://reviews.freebsd.org/D49940

vmm: Consolidate code which manages guest memory regions

2025-02-18T16:00:07+00:00

On all three platforms supported by vmm, we have mostly duplicated code
to manage guest physical memory regions.  Deduplicate much of this code
and move it into sys/dev/vmm/vmm_mem.c.

To avoid exporting struct vm outside of machdep vmm.c, add a new
struct vm_mem to contain the memory segment descriptors, and add a
vm_mem() accessor, akin to vm_vmspace().  This way vmm_mem.c can
implement its routines without needing to see the layout of struct vm.

The handling of the per-VM vmspace is also duplicated but will be moved
to vmm_mem.c in a follow-up patch.

On amd64, move the ppt_is_mmio() check out of vm_mem_allocated() to keep
the code MI, as PPT is only implemented on amd64.  There are only a
couple of callers, so this is not unreasonable.

No functional change intended.

Reviewed by:	jhb
Differential Revision:	https://reviews.freebsd.org/D48270

vmm: Add vmm_fence.c to SRCS for vmm.ko on riscv

2025-02-14T15:26:49+00:00

Fixes:	8f6b66a9d3f2 ("riscv vmm: implement SBI RFNC extension.")

vmm: Depend on vmm_hyp* files as needed

2025-01-24T16:21:06+00:00

The arm64 vmm_nvhe* files depend on a vmm_hyp file to provide most of
the implementation. As these are built with custom rules the normal
generated dependency information is not used, even if generated.

Add a dependency between these two sets of files to ensure when the
implementation is updated the file will be rebuilt.

Sponsored by:	Arm Ltd

riscv vmm: virtual timer support.

2025-01-02T16:02:39+00:00

Add a virtual timer implementation based on SBI Time extension.
This is needed for Eswin EIC7700 SoC which does not include the newer SSTC
extension.

Timer interrupt pending bit (STIP) could not be cleared in the guest system,
so rework interrupts handling: add new "interrupts_pending" field. Use it
for timer interrupt only for now, but later we can extend to store all
pending interrupts (Timer, IPI and External).

With this I'm able to boot FreeBSD (SMP) guest on HiFive Premier P550,
which is the first real hardware with RISC-V 'H'-spec included.

Differential Revision: https://reviews.freebsd.org/D48133

riscv: Add support for building vmm as a kernel module

2024-11-13T14:15:07+00:00

- Update sys/modules/vmm/Makefile.
- Add some required symbol definitions.
- Hook up vmm in sys/modules/Makefile.

Reviewed by:	br
Differential Revision:	https://reviews.freebsd.org/D47477

vmm: Rename the amdiommu driver to amdviiommu

2024-11-04T14:45:57+00:00

To avoid a conflict with the new amdiommu driver imported recently.

Fixes:		0f5116d7efe3 ("AMD IOMMU driver")
Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D47415