[v3] Add AMD Secure Nested Paging (SEV-SNP) support

[edk2-devel] [PATCH RFC v3 22/22] MdePkg/GHCB: increase the GHCB protocol max version

Posted by Brijesh Singh 4 years, 8 months ago

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275

Now that OvmfPkg supports version 2 of the GHCB specification, bump the
protocol version.

Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
---
 MdePkg/Include/Register/Amd/Ghcb.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MdePkg/Include/Register/Amd/Ghcb.h b/MdePkg/Include/Register/Amd/Ghcb.h
index 4d1ee29e0a5e..191fd0876060 100644
--- a/MdePkg/Include/Register/Amd/Ghcb.h
+++ b/MdePkg/Include/Register/Amd/Ghcb.h
@@ -24,7 +24,7 @@
 #define VC_EXCEPTION 29
 
 #define GHCB_VERSION_MIN     1
-#define GHCB_VERSION_MAX     1
+#define GHCB_VERSION_MAX     2
 
 #define GHCB_STANDARD_USAGE  0
 
-- 
2.17.1



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Re: [edk2-devel] [PATCH RFC v3 22/22] MdePkg/GHCB: increase the GHCB protocol max version

Posted by Laszlo Ersek 4 years, 8 months ago

Copying the MdePkg reviewers.

Thanks
Laszlo

On 05/27/21 01:11, Brijesh Singh wrote:
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275
> 
> Now that OvmfPkg supports version 2 of the GHCB specification, bump the
> protocol version.
> 
> Cc: James Bottomley <jejb@linux.ibm.com>
> Cc: Min Xu <min.m.xu@intel.com>
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> Cc: Tom Lendacky <thomas.lendacky@amd.com>
> Cc: Jordan Justen <jordan.l.justen@intel.com>
> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> Cc: Laszlo Ersek <lersek@redhat.com>
> Cc: Erdem Aktas <erdemaktas@google.com>
> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
> ---
>  MdePkg/Include/Register/Amd/Ghcb.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/MdePkg/Include/Register/Amd/Ghcb.h b/MdePkg/Include/Register/Amd/Ghcb.h
> index 4d1ee29e0a5e..191fd0876060 100644
> --- a/MdePkg/Include/Register/Amd/Ghcb.h
> +++ b/MdePkg/Include/Register/Amd/Ghcb.h
> @@ -24,7 +24,7 @@
>  #define VC_EXCEPTION 29
>  
>  #define GHCB_VERSION_MIN     1
> -#define GHCB_VERSION_MAX     1
> +#define GHCB_VERSION_MAX     2
>  
>  #define GHCB_STANDARD_USAGE  0
>  
> 



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回复: [edk2-devel] [PATCH RFC v3 22/22] MdePkg/GHCB: increase the GHCB protocol max version

Posted by gaoliming 4 years, 8 months ago

Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>

> -----邮件原件-----
> 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Laszlo Ersek
> 发送时间: 2021年6月3日 21:09
> 收件人: devel@edk2.groups.io
> 抄送: brijesh.singh@amd.com; James Bottomley <jejb@linux.ibm.com>; Min
> Xu <min.m.xu@intel.com>; Jiewen Yao <jiewen.yao@intel.com>; Tom
> Lendacky <thomas.lendacky@amd.com>; Jordan Justen
> <jordan.l.justen@intel.com>; Erdem Aktas <erdemaktas@google.com>; Eric
> Dong <eric.dong@intel.com>; Ray Ni <ray.ni@intel.com>; Rahul Kumar
> <rahul1.kumar@intel.com>; Ard Biesheuvel <ardb+tianocore@kernel.org>;
> Michael D Kinney <michael.d.kinney@intel.com>; Liming Gao
> <gaoliming@byosoft.com.cn>; Zhiguang Liu <zhiguang.liu@intel.com>
> 主题: Re: [edk2-devel] [PATCH RFC v3 22/22] MdePkg/GHCB: increase the
> GHCB protocol max version
> 
> Copying the MdePkg reviewers.
> 
> Thanks
> Laszlo
> 
> On 05/27/21 01:11, Brijesh Singh wrote:
> > BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275
> >
> > Now that OvmfPkg supports version 2 of the GHCB specification, bump the
> > protocol version.
> >
> > Cc: James Bottomley <jejb@linux.ibm.com>
> > Cc: Min Xu <min.m.xu@intel.com>
> > Cc: Jiewen Yao <jiewen.yao@intel.com>
> > Cc: Tom Lendacky <thomas.lendacky@amd.com>
> > Cc: Jordan Justen <jordan.l.justen@intel.com>
> > Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> > Cc: Laszlo Ersek <lersek@redhat.com>
> > Cc: Erdem Aktas <erdemaktas@google.com>
> > Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
> > ---
> >  MdePkg/Include/Register/Amd/Ghcb.h | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/MdePkg/Include/Register/Amd/Ghcb.h
> b/MdePkg/Include/Register/Amd/Ghcb.h
> > index 4d1ee29e0a5e..191fd0876060 100644
> > --- a/MdePkg/Include/Register/Amd/Ghcb.h
> > +++ b/MdePkg/Include/Register/Amd/Ghcb.h
> > @@ -24,7 +24,7 @@
> >  #define VC_EXCEPTION 29
> >
> >  #define GHCB_VERSION_MIN     1
> > -#define GHCB_VERSION_MAX     1
> > +#define GHCB_VERSION_MAX     2
> >
> >  #define GHCB_STANDARD_USAGE  0
> >
> >
> 
> 
> 
> 
> 





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