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From: Greg KH <gregkh@linuxfoundation.org>
To: Tianyu Lan <ltykernel@gmail.com>
Cc: kys@microsoft.com, haiyangz@microsoft.com,
	sthemmin@microsoft.com, wei.liu@kernel.org, decui@microsoft.com,
	catalin.marinas@arm.com, will@kernel.org, tglx@linutronix.de,
	mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com,
	dave.hansen@linux.intel.com, luto@kernel.org,
	peterz@infradead.org, konrad.wilk@oracle.com,
	boris.ostrovsky@oracle.com, jgross@suse.com,
	sstabellini@kernel.org, joro@8bytes.org, davem@davemloft.net,
	kuba@kernel.org, jejb@linux.ibm.com, martin.petersen@oracle.com,
	arnd@arndb.de, hch@lst.de, m.szyprowski@samsung.com,
	robin.murphy@arm.com, brijesh.singh@amd.com,
	thomas.lendacky@amd.com, Tianyu.Lan@microsoft.com,
	pgonda@google.com, martin.b.radev@gmail.com,
	akpm@linux-foundation.org, kirill.shutemov@linux.intel.com,
	rppt@kernel.org, hannes@cmpxchg.org, aneesh.kumar@linux.ibm.com,
	krish.sadhukhan@oracle.com, saravanand@fb.com,
	linux-arm-kernel@lists.infradead.org,
	xen-devel@lists.xenproject.org, rientjes@google.com,
	ardb@kernel.org, michael.h.kelley@microsoft.com,
	iommu@lists.linux-foundation.org, linux-arch@vger.kernel.org,
	linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-scsi@vger.kernel.org, netdev@vger.kernel.org,
	vkuznets@redhat.com, parri.andrea@gmail.com,
	dave.hansen@intel.com
Subject: Re: [PATCH V4 04/13] hyperv: Mark vmbus ring buffer visible to host in Isolation VM
Date: Fri, 27 Aug 2021 19:41:05 +0200	[thread overview]
Message-ID: <YSkjsapeNj+2j//o@kroah.com> (raw)
In-Reply-To: <20210827172114.414281-5-ltykernel@gmail.com>

On Fri, Aug 27, 2021 at 01:21:02PM -0400, Tianyu Lan wrote:
> From: Tianyu Lan <Tianyu.Lan@microsoft.com>
> 
> Mark vmbus ring buffer visible with set_memory_decrypted() when
> establish gpadl handle.
> 
> Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
> ---
> Change since v3:
>        * Change vmbus_teardown_gpadl() parameter and put gpadl handle,
>        buffer and buffer size in the struct vmbus_gpadl.
> ---
>  drivers/hv/channel.c            | 36 ++++++++++++++++++++++++++++-----
>  drivers/net/hyperv/hyperv_net.h |  1 +
>  drivers/net/hyperv/netvsc.c     | 16 +++++++++++----
>  drivers/uio/uio_hv_generic.c    | 14 +++++++++++--
>  include/linux/hyperv.h          |  8 +++++++-
>  5 files changed, 63 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
> index f3761c73b074..82650beb3af0 100644
> --- a/drivers/hv/channel.c
> +++ b/drivers/hv/channel.c
> @@ -17,6 +17,7 @@
>  #include <linux/hyperv.h>
>  #include <linux/uio.h>
>  #include <linux/interrupt.h>
> +#include <linux/set_memory.h>
>  #include <asm/page.h>
>  #include <asm/mshyperv.h>
>  
> @@ -474,6 +475,13 @@ static int __vmbus_establish_gpadl(struct vmbus_channel *channel,
>  	if (ret)
>  		return ret;
>  
> +	ret = set_memory_decrypted((unsigned long)kbuffer,
> +				   HVPFN_UP(size));
> +	if (ret) {
> +		pr_warn("Failed to set host visibility for new GPADL %d.\n", ret);

dev_warn()?  You have access to a struct device, why not use it?

same for all other instances here.

thanks,

greg k-h

  reply	other threads:[~2021-08-27 17:41 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-27 17:20 [PATCH V4 00/13] x86/Hyper-V: Add Hyper-V Isolation VM support Tianyu Lan
2021-08-27 17:20 ` [PATCH V4 01/13] x86/hyperv: Initialize GHCB page in Isolation VM Tianyu Lan
2021-09-02  0:15   ` Michael Kelley
2021-08-27 17:21 ` [PATCH V4 02/13] x86/hyperv: Initialize shared memory boundary in the " Tianyu Lan
2021-09-02  0:15   ` Michael Kelley
2021-09-02  6:35     ` Tianyu Lan
2021-08-27 17:21 ` [PATCH V4 03/13] x86/hyperv: Add new hvcall guest address host visibility support Tianyu Lan
2021-09-02  0:16   ` Michael Kelley
2021-08-27 17:21 ` [PATCH V4 04/13] hyperv: Mark vmbus ring buffer visible to host in Isolation VM Tianyu Lan
2021-08-27 17:41   ` Greg KH [this message]
2021-08-27 17:44     ` Tianyu Lan
2021-09-02  0:17   ` Michael Kelley
2021-08-27 17:21 ` [PATCH V4 05/13] hyperv: Add Write/Read MSR registers via ghcb page Tianyu Lan
2021-08-27 17:41   ` Greg KH
2021-08-27 17:46     ` Tianyu Lan
2021-09-02  3:32   ` Michael Kelley
2021-08-27 17:21 ` [PATCH V4 06/13] hyperv: Add ghcb hvcall support for SNP VM Tianyu Lan
2021-09-02  0:20   ` Michael Kelley
2021-08-27 17:21 ` [PATCH V4 07/13] hyperv/Vmbus: Add SNP support for VMbus channel initiate message Tianyu Lan
2021-09-02  0:21   ` Michael Kelley
2021-08-27 17:21 ` [PATCH V4 08/13] hyperv/vmbus: Initialize VMbus ring buffer for Isolation VM Tianyu Lan
2021-09-02  0:23   ` Michael Kelley
2021-09-02 13:35     ` Tianyu Lan
2021-09-02 16:14       ` Michael Kelley
2021-08-27 17:21 ` [PATCH V4 09/13] DMA: Add dma_map_decrypted/dma_unmap_encrypted() function Tianyu Lan
2021-08-27 17:21 ` [PATCH V4 10/13] x86/Swiotlb: Add Swiotlb bounce buffer remap function for HV IVM Tianyu Lan
2021-08-27 17:21 ` [PATCH V4 11/13] hyperv/IOMMU: Enable swiotlb bounce buffer for Isolation VM Tianyu Lan
2021-09-02  1:27   ` Michael Kelley
2021-08-27 17:21 ` [PATCH V4 12/13] hv_netvsc: Add Isolation VM support for netvsc driver Tianyu Lan
2021-09-02  2:34   ` Michael Kelley
2021-09-02  4:56     ` Michael Kelley
2021-08-27 17:21 ` [PATCH V4 13/13] hv_storvsc: Add Isolation VM support for storvsc driver Tianyu Lan
2021-09-02  2:08   ` Michael Kelley
2021-08-30 12:00 ` [PATCH V4 00/13] x86/Hyper-V: Add Hyper-V Isolation VM support Christoph Hellwig
2021-08-31 15:20   ` Tianyu Lan
2021-09-02  7:51     ` Christoph Hellwig
2021-08-31 17:16   ` Michael Kelley
2021-09-02  7:59     ` Christoph Hellwig
2021-09-02 11:21       ` Tianyu Lan
2021-09-02 15:57       ` Michael Kelley
2021-09-14 14:41         ` Tianyu Lan

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