[edk2-devel] [PATCH 0/4] OvmfPkg: CloudHv: Reduce PIO and MMIO accesses

[Yao, Jiewen]

Acked-by: Jiewen Yao <Jiewen.yao at intel.com>

I notice the PR failed - https://github.com/tianocore/edk2/pull/2875

I just want to double confirm, do you have a success PR for this patch set?

Thank you
Yao Jiewen

> -----Original Message-----
> From: Boeuf, Sebastien <sebastien.boeuf at intel.com>
> Sent: Tuesday, May 10, 2022 8:51 PM
> To: devel at edk2.groups.io
> Cc: Yao, Jiewen <jiewen.yao at intel.com>; Justen, Jordan L
> <jordan.l.justen at intel.com>; kraxel at redhat.com; Boeuf, Sebastien
> <sebastien.boeuf at intel.com>
> Subject: [PATCH 0/4] OvmfPkg: CloudHv: Reduce PIO and MMIO accesses
> 
> From: Sebastien Boeuf <sebastien.boeuf at intel.com>
> 
> The goal of this series is to reduce the amount of inappropriate PIO
> and MMIO accesses generated by the firmware when running on Cloud
> Hypervisor.
> 
> For MMIO accesses, it is about providing the right base address where
> the firmware will be loaded by the VMM in order to avoid unexpected
> accesses to some address ranges.
> 
> For PIO accesses, it is about preventing some read/write to be performed
> in the first place, as we know the underlying device is not emulated by
> Cloud Hypervisor.
> 
> Signed-off-by: Sebastien Boeuf <sebastien.boeuf at intel.com>
> 
> Sebastien Boeuf (4):
>   OvmfPkg: CloudHv: Fix FW_BASE_ADDRESS
>   OvmfPkg: Check for QemuFwCfg availability before accessing it
>   OvmfPkg: CloudHv: Rely on QemuFwCfgLibNull implementation
>   OvmfPkg: Don't access A20 gate register on Cloud Hypervisor
> 
>  OvmfPkg/CloudHv/CloudHvDefines.fdf.inc        | 65 +++++++++++++++++++
>  OvmfPkg/CloudHv/CloudHvX64.dsc                |  4 +-
>  OvmfPkg/CloudHv/CloudHvX64.fdf                |  2 +-
>  OvmfPkg/Library/PlatformInitLib/Platform.c    | 13 ++--
>  .../QemuBootOrderLib/QemuBootOrderLib.c       |  8 ++-
>  5 files changed, 82 insertions(+), 10 deletions(-)
>  create mode 100644 OvmfPkg/CloudHv/CloudHvDefines.fdf.inc
> 
> --
> 2.32.0



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