[edk2-devel] [PATCH v5 20/35] OvmfPkg/XenPlatformPei: Introduce XenPvhDetected
Laszlo Ersek
lersek at redhat.com
Thu Aug 15 08:54:29 UTC 2019
On 08/13/19 13:31, Anthony PERARD wrote:
> XenPvhDetected() can be used to figure out if OVMF has started via the
> Xen PVH entry point.
>
> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
> Signed-off-by: Anthony PERARD <anthony.perard at citrix.com>
> Acked-by: Laszlo Ersek <lersek at redhat.com>
> ---
>
> Notes:
> v5:
> - in XenPvhDetected, check mXenInfo.HyperPages instead of .VersionMajor
Right, and that seems to address
http://mid.mail-archive.com/20190808104354.wcl2vicpmvbl3rlz@Air-de-Roger
https://edk2.groups.io/g/devel/message/45159
So my ACK stands.
Thanks
Laszlo
> OvmfPkg/XenPlatformPei/Platform.h | 5 +++++
> OvmfPkg/XenPlatformPei/Xen.c | 13 +++++++++++++
> 2 files changed, 18 insertions(+)
>
> diff --git a/OvmfPkg/XenPlatformPei/Platform.h b/OvmfPkg/XenPlatformPei/Platform.h
> index 4a80057bdc..db9a62572f 100644
> --- a/OvmfPkg/XenPlatformPei/Platform.h
> +++ b/OvmfPkg/XenPlatformPei/Platform.h
> @@ -99,6 +99,11 @@ XenHvmloaderDetected (
> VOID
> );
>
> +BOOLEAN
> +XenPvhDetected (
> + VOID
> + );
> +
> VOID
> AmdSevInitialize (
> VOID
> diff --git a/OvmfPkg/XenPlatformPei/Xen.c b/OvmfPkg/XenPlatformPei/Xen.c
> index 29b42b746c..f26f0e56dd 100644
> --- a/OvmfPkg/XenPlatformPei/Xen.c
> +++ b/OvmfPkg/XenPlatformPei/Xen.c
> @@ -214,6 +214,19 @@ XenHvmloaderDetected (
> return (mXenHvmloaderInfo != NULL);
> }
>
> +BOOLEAN
> +XenPvhDetected (
> + VOID
> + )
> +{
> + //
> + // This function should only be used after XenConnect
> + //
> + ASSERT (mXenInfo.HyperPages != NULL);
> +
> + return mXenHvmloaderInfo == NULL;
> +}
> +
> VOID
> XenPublishRamRegions (
> VOID
>
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