Re: [PATCH v10 5/7] arm64: hyperv: Initialize hypervisor on boot
From: Wei Liu <wei.liu@kernel.org>
Date: 2021-05-13 15:16:39
Also in:
linux-arm-kernel, linux-hyperv, lkml
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 <redacted>
[...]
quoted hunk ↗ jump to hunk
/* * 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