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Drivers: hv: Enable VTL mode for arm64

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Kconfig dependencies for arm64 guests on Hyper-V require that be
ACPI enabled, and limit VTL mode to x86/x64. To enable VTL mode
on arm64 as well, update the dependencies. Since VTL mode requires
DeviceTree instead of ACPI, don’t require arm64 guests on Hyper-V
to have ACPI unconditionally.

Signed-off-by: Roman Kisel <romank@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/20250428210742.435282-4-romank@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20250428210742.435282-4-romank@linux.microsoft.com>
This commit is contained in:
Roman Kisel 2025-04-28 14:07:34 -07:00 committed by Wei Liu
parent 36ebd328a5
commit f41ceff174
1 changed files with 3 additions and 3 deletions
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6
drivers/hv/Kconfig
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@ -5,7 +5,7 @@ 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)
select PARAVIRT
select X86_HV_CALLBACK_VECTOR if X86
select OF_EARLY_FLATTREE if OF
@ -15,7 +15,7 @@ config HYPERV
config HYPERV_VTL_MODE
bool "Enable Linux to boot in VTL context"
depends on X86_64 && HYPERV
depends on (X86_64 || ARM64) && HYPERV
depends on SMP
default n
help
@ -31,7 +31,7 @@ config HYPERV_VTL_MODE
Select this option to build a Linux kernel to run at a VTL other than
the normal VTL0, which currently is only VTL2. This option
initializes the x86 platform for VTL2, and adds the ability to boot
initializes the kernel to run in VTL2, and adds the ability to boot
secondary CPUs directly into 64-bit context as required for VTLs other
than 0. A kernel built with this option must run at VTL2, and will
not run as a normal guest.