[edk2-devel] [PATCH v4 03/35] OvmfPkg: Introduce XenResetVector
Laszlo Ersek
lersek at redhat.com
Tue Jul 30 09:16:20 UTC 2019
On 07/29/19 17:39, Anthony PERARD wrote:
> Introduce XenResetVector, a copy of OvmfPkg/ResetVector, with one
> changes:
> - SEC_DEFAULT_CR0: enable cache (bit 30 or CD set to 0)
>
> Xen copies the OVMF code to RAM, there is no need to disable cache.
>
> This new module will later be modified to add a new entry point, more
> detail in a following commit "OvmfPkg/XenResetVector: Add new entry point
> for Xen PVH"
>
> Value FILE_GUID of XenResetVector have not changed compare to ResetVector
> because it is a special value (gEfiFirmwareVolumeTopFileGuid).
>
> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
> Signed-off-by: Anthony PERARD <anthony.perard at citrix.com>
> Reviewed-by: Laszlo Ersek <lersek at redhat.com>
> ---
>
> Notes:
> v4:
> - Update Maintainers.txt
>
> v3:
> - Added gEfiFirmwareVolumeTopFileGuid to the commit message.
> - rebased: SPDX
>
> OvmfPkg/OvmfXen.dsc | 2 +-
> OvmfPkg/OvmfXen.fdf | 2 +-
> OvmfPkg/XenResetVector/XenResetVector.inf | 38 +++++
> Maintainers.txt | 1 +
> .../XenResetVector/Ia16/Real16ToFlat32.asm | 134 ++++++++++++++++
> OvmfPkg/XenResetVector/Ia32/PageTables64.asm | 149 ++++++++++++++++++
> OvmfPkg/XenResetVector/XenResetVector.nasmb | 68 ++++++++
> 7 files changed, 392 insertions(+), 2 deletions(-)
> create mode 100644 OvmfPkg/XenResetVector/XenResetVector.inf
> create mode 100644 OvmfPkg/XenResetVector/Ia16/Real16ToFlat32.asm
> create mode 100644 OvmfPkg/XenResetVector/Ia32/PageTables64.asm
> create mode 100644 OvmfPkg/XenResetVector/XenResetVector.nasmb
[...]
> diff --git a/Maintainers.txt b/Maintainers.txt
> index 98f6d828eb..34bdb275b4 100644
> --- a/Maintainers.txt
> +++ b/Maintainers.txt
> @@ -380,6 +380,7 @@ F: OvmfPkg/SmbiosPlatformDxe/*Xen.c
> F: OvmfPkg/XenBusDxe/
> F: OvmfPkg/XenIoPciDxe/
> F: OvmfPkg/XenPvBlkDxe/
> +F: OvmfPkg/XenResetVector/
> R: Anthony Perard <anthony.perard at citrix.com>
> R: Julien Grall <julien.grall at arm.com>
>
Reviewed-by: Laszlo Ersek <lersek at redhat.com>
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