The FW_BASE_ADDRESS value provided by OvmfPkgDefines.fdf.inc is
incorrect for the CloudHv target. We know the generated firmware
contains a PVH ELF header, meaning it will be loaded according to the
address provided through this header. And since we know this address
isn't going to change as it's part of CloudHvElfHeader.fdf.inc, we can
hardcode it through a new include file CloudHvDefines.fdf.inc, which
replaces the generic one OvmfPkgDefines.fdf.inc.
With this change, we prevent the firmware from accessing MMIO addresses
from the address range 0xffc00000-0xffffffff since we know the firmware
hasn't been loaded on this address range.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3711
XenTimerDxe is a local Apic timer driver and it has nothing to do
with Xen. So rename it to LocalApicTimerDxe.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Julien Grall <julien@xen.org>
Acked-by: Anthony PERARD <anthony.perard@citrix.com
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
Instead of hardcoding the address of the RSDP in the firmware, let's
rely on the PVH structure hvm_start_info to retrieve this information.
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Following the model from the Xen target, CloudHv is generated as a PVH
ELF binary to take advantage of the PVH specification, which requires
less emulation from the VMM.
The fdf include file CloudHvElfHeader.fdf.inc has been generated from
the following commands:
$ gcc -D PVH64 -o elf_gen OvmfPkg/OvmfXenElfHeaderGenerator.c
$ ./elf_gen 4194304 OvmfPkg/CloudHv/CloudHvElfHeader.fdf.inc
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
CloudHv doesn't need any VARS store, and it doesn't need the CODE
section to be generated separately either. The only thing needed is to
generate a firmware binary that can be used by Cloud Hypervisor.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Cloud Hypervisor doesn't need the support for legacy BIOS, therefore the
CSM support can be removed.
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Cloud Hypervisor doesn't emulate any USB controller or device, therefore
the support can be removed.
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
No need for video or virtio-gpu support since Cloud Hypervisor doesn't
emulate any of these.
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Cloud Hypervisor does not emulate any 8259 PIC, therefore there's no
reason to load the corresponding driver for it.
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Cloud Hypervisor doesn't emulate any LPC bridge, therefore we simply
need to rely on the serial I/O port to be connected as a console.
It reuses the code from Xen since it's very generic.
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Cloud Hypervisor doesn't emulate the legacy 8254 PIT, which is why
instead of relying on it as the timer UEFI services, rely on the
XenTimerDxe implementation. This is not Xen specific, as it simply uses
the local APIC timer triggering interrupts on the vector 32.
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Adding the new target CloudHvX64, copied directly from OvmfPkgX64. The
point is to create a target dedicated for Cloud Hypervisor rather than
trying to support both QEMU and Cloud Hypervisor on the same target.
Improvements and cleanups will be performed in follow up patches.
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Sebastien Boeuf
Min Xu