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boundary="_000_BY5PR11MB440118731DBAC209C5AC36C0EAD49BY5PR11MB4401namp_" --_000_BY5PR11MB440118731DBAC209C5AC36C0EAD49BY5PR11MB4401namp_ Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Hi, Sorry to bother you folks, but I was wondering if you had this patchset on = your radar :) Thanks for your time, Sebastien ________________________________ From: Boeuf, Sebastien Sent: Tuesday, May 10, 2022 2:50 PM To: devel@edk2.groups.io Cc: Yao, Jiewen ; Justen, Jordan L ; kraxel@redhat.com ; Boeuf, Sebastien Subject: [PATCH 0/4] OvmfPkg: CloudHv: Reduce PIO and MMIO accesses From: Sebastien Boeuf 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 (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 --------------------------------------------------------------------- Intel Corporation SAS (French simplified joint stock company) Registered headquarters: "Les Montalets"- 2, rue de Paris, = 92196 Meudon Cedex, France Registration Number: 302 456 199 R.C.S. NANTERRE Capital: 5 208 026.16 Euros This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. --_000_BY5PR11MB440118731DBAC209C5AC36C0EAD49BY5PR11MB4401namp_ Content-Type: text/html; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable

Hi,

Sorry to bother you folks, but I was wondering if you had this patchset on = your radar :)

Thanks for your time,
Sebastien
From: Boeuf, Sebastien <= sebastien.boeuf@intel.com>
Sent: Tuesday, May 10, 2022 2:50 PM
To: devel@edk2.groups.io <devel@edk2.groups.io>
Cc: Yao, Jiewen <jiewen.yao@intel.com>; Justen, Jordan L <j= ordan.l.justen@intel.com>; kraxel@redhat.com <kraxel@redhat.com>; = Boeuf, Sebastien <sebastien.boeuf@intel.com>
Subject: [PATCH 0/4] OvmfPkg: CloudHv: Reduce PIO and MMIO accesses<= /font>
 
From: Sebastien Boeuf <sebastien.boeuf@intel.co= m>

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@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     &= nbsp;  | 65 +++++++++++++++++++
 OvmfPkg/CloudHv/CloudHvX64.dsc      &nb= sp;         |  4 +-
 OvmfPkg/CloudHv/CloudHvX64.fdf      &nb= sp;         |  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

---------------------------------------------------------------------
Intel Corporation SAS (French simplified joint stock company)
Registered headquarters: "Les Montalets"- 2, rue de Paris,
92196 Meudon Cedex, France
Registration Number:  302 456 199 R.C.S. NANTERRE
Capital: 5 208 026.16 Euros

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