On 3/8/2025 1:05 PM, Arnd Bergmann wrote:
On Fri, Mar 7, 2025, at 23:02, Roman Kisel wrote:
@@ -5,18 +5,20 @@ menu "Microsoft Hyper-V guest support"
config HYPERV
tristate "Microsoft Hyper-V client drivers"
depends on (X86 && X86_LOCAL_APIC && HYPERVISOR_GUEST) \
- || (ACPI && ARM64 && !CPU_BIG_ENDIAN)
+ || (ARM64 && !CPU_BIG_ENDIAN)
+ depends on (ACPI || HYPERV_VTL_MODE)
select PARAVIRT
select X86_HV_CALLBACK_VECTOR if X86
- select OF_EARLY_FLATTREE if OF
help
Select this option to run Linux as a Hyper-V client operating
system.
config HYPERV_VTL_MODE
bool "Enable Linux to boot in VTL context"
- depends on X86_64 && HYPERV
+ depends on (X86_64 || ARM64)
depends on SMP
+ select OF_EARLY_FLATTREE
+ select OF
default n
help
Having the dependency below the top-level Kconfig entry feels a little
counterintuitive. You could flip that back as it was before by doing
select HYPERV_VTL_MODE if !ACPI
depends on ACPI || SMP
in the HYPERV option, leaving the dependency on HYPERV in
HYPERV_VTL_MODE.
I was implementing Michael's suggestion, and might've gone a bit
overboard, my bad. I'll fix this, thanks a lot for reviewing!
Is OF_EARLY_FLATTREE actually needed on x86?
No, it is not needed on x86. It is only needed when VTL mode is used.
Arnd
--
Thank you,
Roman
