| History log of /src/sys/arch/amd64/conf/MICROVM |
| Revision | | Date | Author | Comments |
| 1.4 |
| 23-Aug-2025 |
imil | Add `+invtsc` to the QEMU command line example, this enables the
invariant TSC feature, allowing the kernel to use CPUID 0x40000010 to
read TSC and LAPIC frequencies from the host, thus avoiding the need
for frequency calculation and gaining over 200ms in boot speed.
|
| 1.3 |
| 28-Mar-2025 |
imil | branches: 1.3.2; 1.3.4;
x86: consolidate MICROVM kernel configurations
Move common configuration options from amd64/conf/MICROVM and
i386/conf/MICROVM into a shared x86/conf/MICROVM.common file.
|
| 1.2 |
| 27-Mar-2025 |
riastradh | virtio(4): Consolidate kernel configs.
No functional change intended.
Leave `# XXX ?' comments where I don't know why the driver in
question is excluded. (Typical reason is that PAGE_SIZE is not 4096
but I didn't investigate -- if you do investigate, please either
update the comment if you determine a reason, or enable the driver if
you don't.)
PR kern/59211: vio9p(4): missing from various GENERICs and MAKEDEVs
|
| 1.1 |
| 15-Jan-2025 |
imil | Add support for command line MMIO devices, at least qemu and
Firecracker pass MMIO virtual devices mapping through the kernel
command line.
This driver is based on Colin Percival's FreeBSD virtio_mmio_cmdline.c
https://github.com/freebsd/freebsd-src/blob/main/sys/dev/virtio/mmio/virtio_mmio_cmdline.c
The following kernel options are needed
options MPBIOS
options MPTABLE_LINUX_BUG_COMPAT
As are these drivers
pv* at pvbus?
virtio* at pv?
Exemple qemu usage on a Linux host to boot a NetBSD guest:
qemu-system-x86_64 \
-M microvm,x-option-roms=off,rtc=on,acpi=off,pic=off,accel=kvm \
-m 256 -cpu host -kernel ${KERNEL} \
-append "root=ld0a console=com rw -v" \
-device virtio-blk-device,drive=hd0 \
-drive file=${IMG},format=raw,id=hd0 \
-device virtio-net-device,netdev=net0 \
-netdev user,id=net0,ipv6=off,hostfwd=::2200-:22 \
-global virtio-mmio.force-legacy=false -display none -serial stdio
A lightweight kernel configuration named MICROVM if available for this
use case.
|
| 1.3.4.2 |
| 02-Aug-2025 |
perseant | Sync with HEAD
|
| 1.3.4.1 |
| 28-Mar-2025 |
perseant | file MICROVM was added on branch perseant-exfatfs on 2025-08-02 05:55:24 +0000
|
| 1.3.2.1 |
| 25-Aug-2025 |
martin | Pull up following revision(s) (requested by imil in ticket #14):
sys/arch/amd64/conf/MICROVM: revision 1.4
sys/arch/i386/conf/MICROVM: revision 1.4
Add `+invtsc` to the QEMU command line example, this enables the
invariant TSC feature, allowing the kernel to use CPUID 0x40000010 to
read TSC and LAPIC frequencies from the host, thus avoiding the need
for frequency calculation and gaining over 200ms in boot speed.
|
