All of lore.kernel.org
 help / color / mirror / Atom feed
From: Tom Lendacky <thomas.lendacky@amd.com>
To: Tianyu Lan <ltykernel@gmail.com>,
	kys@microsoft.com, haiyangz@microsoft.com,
	sthemmin@microsoft.com, wei.liu@kernel.org, decui@microsoft.com,
	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, davem@davemloft.net,
	kuba@kernel.org, gregkh@linuxfoundation.org, arnd@arndb.de,
	brijesh.singh@amd.com, jroedel@suse.de, Tianyu.Lan@microsoft.com,
	pgonda@google.com, akpm@linux-foundation.org, rppt@kernel.org,
	kirill.shutemov@linux.intel.com, saravanand@fb.com,
	aneesh.kumar@linux.ibm.com, rientjes@google.com, tj@kernel.org,
	michael.h.kelley@microsoft.com
Cc: linux-arch@vger.kernel.org, linux-hyperv@vger.kernel.org,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	vkuznets@redhat.com, konrad.wilk@oracle.com, hch@lst.de,
	robin.murphy@arm.com, joro@8bytes.org, parri.andrea@gmail.com,
	dave.hansen@intel.com
Subject: Re: [PATCH V6 5/8] x86/hyperv: Add Write/Read MSR registers via ghcb page
Date: Thu, 30 Sep 2021 13:34:34 -0500	[thread overview]
Message-ID: <a10b24fa-98dd-ae57-ca63-2789a06abe7a@amd.com> (raw)
In-Reply-To: <20210930130545.1210298-6-ltykernel@gmail.com>

On 9/30/21 8:05 AM, Tianyu Lan wrote:
> From: Tianyu Lan <Tianyu.Lan@microsoft.com>

...

> diff --git a/arch/x86/kernel/sev-shared.c b/arch/x86/kernel/sev-shared.c
> index 9f90f460a28c..dd7f37de640b 100644
> --- a/arch/x86/kernel/sev-shared.c
> +++ b/arch/x86/kernel/sev-shared.c
> @@ -94,10 +94,9 @@ static void vc_finish_insn(struct es_em_ctxt *ctxt)
>   	ctxt->regs->ip += ctxt->insn.length;
>   }
>   
> -static enum es_result sev_es_ghcb_hv_call(struct ghcb *ghcb,
> -					  struct es_em_ctxt *ctxt,
> -					  u64 exit_code, u64 exit_info_1,
> -					  u64 exit_info_2)
> +enum es_result sev_es_ghcb_hv_call_simple(struct ghcb *ghcb,
> +				   u64 exit_code, u64 exit_info_1,
> +				   u64 exit_info_2)

Oh, and a nice comment about when to use this function directly vs. the 
non-simple one would be nice to have (basically use this one only for the 
Hyper-V Isolation VM support).

Thanks,
Tom


  parent reply	other threads:[~2021-09-30 18:34 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-30 13:05 [PATCH V6 0/8] x86/Hyper-V: Add Hyper-V Isolation VM support(First part) Tianyu Lan
2021-09-30 13:05 ` [PATCH V6 1/8] x86/hyperv: Initialize GHCB page in Isolation VM Tianyu Lan
2021-09-30 13:05 ` [PATCH V6 2/8] x86/hyperv: Initialize shared memory boundary in the " Tianyu Lan
2021-09-30 13:05 ` [PATCH V6 3/8] x86/hyperv: Add new hvcall guest address host visibility support Tianyu Lan
2021-09-30 18:02   ` Borislav Petkov
2021-10-01 13:17     ` Tianyu Lan
2021-09-30 13:05 ` [PATCH V6 4/8] Drivers: hv: vmbus: Mark vmbus ring buffer visible to host in Isolation VM Tianyu Lan
2021-09-30 13:05 ` [PATCH V6 5/8] x86/hyperv: Add Write/Read MSR registers via ghcb page Tianyu Lan
2021-09-30 18:20   ` Borislav Petkov
2021-10-01 13:31     ` Tianyu Lan
2021-09-30 18:27   ` Tom Lendacky
2021-09-30 18:33     ` Borislav Petkov
2021-10-01 13:44     ` Tianyu Lan
2021-09-30 18:34   ` Tom Lendacky [this message]
2021-09-30 13:05 ` [PATCH V6 6/8] x86/hyperv: Add ghcb hvcall support for SNP VM Tianyu Lan
2021-09-30 13:05 ` [PATCH V6 7/8] Drivers: hv: vmbus: Add SNP support for VMbus channel initiate message Tianyu Lan
2021-10-02 13:26   ` Michael Kelley
2021-10-02 14:39     ` Tianyu Lan
2021-10-04  2:39       ` Michael Kelley
2021-09-30 13:05 ` [PATCH V6 8/8] Drivers: hv : vmbus: Initialize VMbus ring buffer for Isolation VM Tianyu Lan

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=a10b24fa-98dd-ae57-ca63-2789a06abe7a@amd.com \
    --to=thomas.lendacky@amd.com \
    --cc=Tianyu.Lan@microsoft.com \
    --cc=akpm@linux-foundation.org \
    --cc=aneesh.kumar@linux.ibm.com \
    --cc=arnd@arndb.de \
    --cc=bp@alien8.de \
    --cc=brijesh.singh@amd.com \
    --cc=dave.hansen@intel.com \
    --cc=dave.hansen@linux.intel.com \
    --cc=davem@davemloft.net \
    --cc=decui@microsoft.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=haiyangz@microsoft.com \
    --cc=hch@lst.de \
    --cc=hpa@zytor.com \
    --cc=joro@8bytes.org \
    --cc=jroedel@suse.de \
    --cc=kirill.shutemov@linux.intel.com \
    --cc=konrad.wilk@oracle.com \
    --cc=kuba@kernel.org \
    --cc=kys@microsoft.com \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-hyperv@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=ltykernel@gmail.com \
    --cc=luto@kernel.org \
    --cc=michael.h.kelley@microsoft.com \
    --cc=mingo@redhat.com \
    --cc=netdev@vger.kernel.org \
    --cc=parri.andrea@gmail.com \
    --cc=peterz@infradead.org \
    --cc=pgonda@google.com \
    --cc=rientjes@google.com \
    --cc=robin.murphy@arm.com \
    --cc=rppt@kernel.org \
    --cc=saravanand@fb.com \
    --cc=sthemmin@microsoft.com \
    --cc=tglx@linutronix.de \
    --cc=tj@kernel.org \
    --cc=vkuznets@redhat.com \
    --cc=wei.liu@kernel.org \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.