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From: Wei Liu <wei.liu@kernel.org>
To: Michael Kelley <mikelley@microsoft.com>
Cc: will@kernel.org, catalin.marinas@arm.com, mark.rutland@arm.com,
	lorenzo.pieralisi@arm.com, sudeep.holla@arm.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org,
	linux-efi@vger.kernel.org, arnd@arndb.de, wei.liu@kernel.org,
	ardb@kernel.org, daniel.lezcano@linaro.org, kys@microsoft.com
Subject: Re: [PATCH v10 5/7] arm64: hyperv: Initialize hypervisor on boot
Date: Thu, 13 May 2021 15:16:25 +0000	[thread overview]
Message-ID: <20210513151625.ww2cznl4myzwbvg5@liuwe-devbox-debian-v2> (raw)
In-Reply-To: <1620841067-46606-6-git-send-email-mikelley@microsoft.com>

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@microsoft.com>
[...]
>  /*
>   * 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
> 

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  reply	other threads:[~2021-05-13 15:18 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-12 17:37 [PATCH v10 0/7] Enable Linux guests on Hyper-V on ARM64 Michael Kelley
2021-05-12 17:37 ` [PATCH v10 1/7] asm-generic: hyperv: Fix incorrect architecture dependencies Michael Kelley
2021-05-12 17:37 ` [PATCH v10 2/7] arm64: hyperv: Add Hyper-V hypercall and register access utilities Michael Kelley
2021-05-14 12:52   ` Mark Rutland
2021-05-14 15:14     ` Michael Kelley
2021-05-17 11:44       ` Mark Rutland
2021-05-17 16:41         ` Michael Kelley
2021-05-12 17:37 ` [PATCH v10 3/7] arm64: hyperv: Add Hyper-V clocksource/clockevent support Michael Kelley
2021-05-14 12:37   ` Mark Rutland
2021-05-14 15:35     ` Michael Kelley
2021-05-17 13:08       ` Mark Rutland
2021-05-17 17:27         ` Michael Kelley
2021-05-18 17:00           ` Mark Rutland
2021-06-08 15:36             ` Michael Kelley
2021-06-10 16:45               ` Mark Rutland
2021-06-14  2:42                 ` Michael Kelley
2021-06-16 20:17                   ` Michael Kelley
2021-06-22  9:54                   ` Mark Rutland
2021-06-23  8:56                     ` Marc Zyngier
2021-06-28  2:21                       ` Michael Kelley
2021-05-12 17:37 ` [PATCH v10 4/7] arm64: hyperv: Add kexec and panic handlers Michael Kelley
2021-05-12 17:37 ` [PATCH v10 5/7] arm64: hyperv: Initialize hypervisor on boot Michael Kelley
2021-05-13 15:16   ` Wei Liu [this message]
2021-05-12 17:37 ` [PATCH v10 6/7] arm64: efi: Export screen_info Michael Kelley
2021-05-12 17:37 ` [PATCH v10 7/7] Drivers: hv: Enable Hyper-V code to be built on ARM64 Michael Kelley
2021-05-13 13:17 ` [PATCH v10 0/7] Enable Linux guests on Hyper-V " Sudeep Holla

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