On Wed, May 12, 2021 at 10:37:45AM -0700, Michael Kelley wrote: > Add ARM64-specific code to initialize the Hyper-V > hypervisor when booting as a guest VM. Provide functions > and data structures indicating hypervisor status that > are needed by VMbus driver. > > This code is built only when CONFIG_HYPERV is enabled. > > Signed-off-by: Michael Kelley <mikelley@xxxxxxxxxxxxx> [...] > /* > * Declare calls to get and set Hyper-V VP register values on ARM64, which > * requires a hypercall. > diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c > index 61845c0..7b17d6a 100644 > --- a/arch/arm64/kernel/setup.c > +++ b/arch/arm64/kernel/setup.c > @@ -49,6 +49,7 @@ > #include <asm/traps.h> > #include <asm/efi.h> > #include <asm/xen/hypervisor.h> > +#include <asm/mshyperv.h> > #include <asm/mmu_context.h> > > static int num_standard_resources; > @@ -355,6 +356,9 @@ void __init __no_sanitize_address setup_arch(char **cmdline_p) > if (acpi_disabled) > unflatten_device_tree(); > > + /* Do after acpi_boot_table_init() so local FADT is available */ > + hyperv_early_init(); > + Arm maintainers, this requires your attention. Thanks. The rest is Hyper-V specific, feel free to skip that portion. Wei. > bootmem_init(); > > kasan_init(); > -- > 1.8.3.1 >
