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From: Wei Liu <wei.liu@kernel.org>
To: Michael Kelley <mikelley@microsoft.com>
Cc: sthemmin@microsoft.com, kys@microsoft.com, wei.liu@kernel.org,
	decui@microsoft.com, tglx@linutronix.de, mingo@redhat.com,
	bp@alien8.de, x86@kernel.org, hpa@zytor.com, arnd@arndb.de,
	linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org,
	linux-arch@vger.kernel.org
Subject: Re: [PATCH 1/3] Drivers: hv: Make portions of Hyper-V init code be arch neutral
Date: Mon, 12 Jul 2021 18:24:00 +0000	[thread overview]
Message-ID: <20210712182400.yze3wochnyccaflw@liuwe-devbox-debian-v2> (raw)
In-Reply-To: <1626060316-2398-2-git-send-email-mikelley@microsoft.com>

On Sun, Jul 11, 2021 at 08:25:14PM -0700, Michael Kelley wrote:
[...]
> +int hv_common_cpu_init(unsigned int cpu)
> +{
> +	void **inputarg, **outputarg;
> +	u64 msr_vp_index;
> +	gfp_t flags;
> +	int pgcount = hv_root_partition ? 2 : 1;
> +
> +	/* hv_cpu_init() can be called with IRQs disabled from hv_resume() */
> +	flags = irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL;
> +
> +	inputarg = (void **)this_cpu_ptr(hyperv_pcpu_input_arg);
> +	*inputarg = kmalloc(pgcount * HV_HYP_PAGE_SIZE, flags);

This is changed from alloc_pages to kmalloc. Does it ensure the
alignment is still correct? 

Wei.

  reply	other threads:[~2021-07-12 18:24 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-12  3:25 [PATCH 0/3] Additional refactoring of Hyper-V arch specific code Michael Kelley
2021-07-12  3:25 ` [PATCH 1/3] Drivers: hv: Make portions of Hyper-V init code be arch neutral Michael Kelley
2021-07-12 18:24   ` Wei Liu [this message]
2021-07-12 18:40     ` Wei Liu
2021-07-12 18:41     ` Michael Kelley
2021-07-12 18:51       ` Wei Liu
2021-07-12  3:25 ` [PATCH 2/3] Drivers: hv: Add arch independent default functions for some Hyper-V handlers Michael Kelley
2021-07-12  3:25 ` [PATCH 3/3] Drivers: hv: Move Hyper-V misc functionality to arch-neutral code Michael Kelley
2021-07-14  9:37 ` [PATCH 0/3] Additional refactoring of Hyper-V arch specific code Wei Liu

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