Re: [PATCH v7 10/10] Drivers: hv: Enable Hyper-V code to be built on ARM64
From: Ben Dooks <hidden>
Date: 2020-08-25 09:30:29
Also in:
linux-arch, linux-efi, linux-hyperv, lkml
On 24/08/2020 18:24, Ard Biesheuvel wrote:
On Mon, 24 Aug 2020 at 18:48, Michael Kelley [off-list ref] wrote:quoted
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 <redacted> --- 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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel