Re: [PATCH v12 5/5] Drivers: hv: Enable Hyper-V code to be built on ARM64
From: Catalin Marinas <catalin.marinas@arm.com>
Date: 2021-08-04 16:12:53
Also in:
linux-arm-kernel, linux-efi, lkml
On Wed, Aug 04, 2021 at 08:52:39AM -0700, Michael Kelley wrote:
quoted hunk ↗ jump to hunk
Update drivers/hv/Kconfig so CONFIG_HYPERV can be selected on ARM64, causing the Hyper-V specific code to be built. Exclude the Hyper-V enlightened clocks/timers code from being built for ARM64. Signed-off-by: Michael Kelley <redacted> Reviewed-by: Boqun Feng <redacted> Acked-by: Marc Zyngier <maz@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> --- drivers/hv/Kconfig | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig index 66c794d..e509d5d 100644 --- a/drivers/hv/Kconfig +++ b/drivers/hv/Kconfig@@ -4,7 +4,8 @@ menu "Microsoft Hyper-V guest support" config HYPERV tristate "Microsoft Hyper-V client drivers" - depends on X86 && ACPI && X86_LOCAL_APIC && HYPERVISOR_GUEST + depends on ACPI && ((X86 && X86_LOCAL_APIC && HYPERVISOR_GUEST) \ + || (ARM64 && !CPU_BIG_ENDIAN)) select PARAVIRT select X86_HV_CALLBACK_VECTOR
Does this need to be: select X86_HV_CALLBACK_VECTOR if X86 I haven't checked whether it gives a warning on arm64 but that symbol doesn't exist. Anyway, I can fix it up locally. As an additional patch (it can be done later, once this goes upstream) I think we should replace the depends on with a single ARCH_HAS_HYPERV. -- Catalin