On 9/13/23 13:02, Ard Biesheuvel wrote: > On Wed, 13 Sept 2023 at 12:56, Laszlo Ersek <ler...@redhat.com> wrote: >> >> "acpi=off" is arguably unusual with UEFI guest OSes; add a note to explain >> it. Original explanation by Drew Jones. >> > > Out of curiosity: how is this different from the -no-acpi QEMU command > line option?
They are the same thing: https://www.qemu.org/docs/master/about/deprecated.html#no-acpi-since-8-0 "The -no-acpi setting has been turned into a machine property. Use -machine acpi=off instead." That is, "-no-acpi" has been deprecated since QEMU 8.0. Cheers Laszlo > > >> Cc: Andrei Warkentin <andrei.warken...@intel.com> >> Cc: Andrew Jones <ajo...@ventanamicro.com> >> Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org> >> Cc: Gerd Hoffmann <kra...@redhat.com> >> Cc: Jiewen Yao <jiewen....@intel.com> >> Cc: Jordan Justen <jordan.l.jus...@intel.com> >> Cc: Sunil V L <suni...@ventanamicro.com> >> Signed-off-by: Laszlo Ersek <ler...@redhat.com> >> --- >> OvmfPkg/RiscVVirt/README.md | 5 +++++ >> 1 file changed, 5 insertions(+) >> >> diff --git a/OvmfPkg/RiscVVirt/README.md b/OvmfPkg/RiscVVirt/README.md >> index 193e4afe8dee..1dba1a26af2d 100644 >> --- a/OvmfPkg/RiscVVirt/README.md >> +++ b/OvmfPkg/RiscVVirt/README.md >> @@ -70,6 +70,11 @@ Below example shows how to boot openSUSE Tumbleweed E20. >> -device virtio-blk-device,drive=hd0 \ >> -drive >> file=openSUSE-Tumbleweed-RISC-V-E20-efi.riscv64.raw,format=raw,id=hd0 >> >> + Note: the `acpi=off` machine property is specified because Linux guest >> + support for ACPI (that is, the ACPI consumer side) is a work in >> progress. >> + Currently, `acpi=off` is recommended unless you are developing ACPI >> support >> + yourself. >> + >> ## Test with your own OpenSBI binary >> Using the above QEMU command line, **RISCV_VIRT_CODE.fd** is launched by the >> OpenSBI binary that is bundled with QEMU. You can build your own OpenSBI >> binary >> > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#108598): https://edk2.groups.io/g/devel/message/108598 Mute This Topic: https://groups.io/mt/101334265/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/leave/9847357/21656/1706620634/xyzzy [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
