On 24/08/2020 18:24, Ard Biesheuvel wrote:
On Mon, 24 Aug 2020 at 18:48, Michael Kelley <mikelley@xxxxxxxxxxxxx> wrote:Update drivers/hv/Kconfig so CONFIG_HYPERV can be selected on ARM64, causing the Hyper-V specific code to be built. Signed-off-by: Michael Kelley <mikelley@xxxxxxxxxxxxx> --- drivers/hv/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig index 79e5356..1113e49 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) select PARAVIRT select X86_HV_CALLBACK_VECTOR helpGiven the comment in a previous patch +/* + * All data structures defined in the TLFS that are shared between Hyper-V + * and a guest VM use Little Endian byte ordering. This matches the default + * byte ordering of Linux running on ARM64, so no special handling is required. + */ shouldn't this depend on !CONFIG_CPU_BIG_ENDIAN ?
or mark the data __le and have the appropriate accessor functions do the swapping. -- Ben Dooks http://www.codethink.co.uk/ Senior Engineer Codethink - Providing Genius https://www.codethink.co.uk/privacy.html
