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
next prev 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
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