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| author | Gerd Hoffmann <kraxel@redhat.com> | 2023-03-28 09:34:01 +0200 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-03-28 09:30:28 +0000 |
| commit | 82c1aa87f991d3fd7ec48b14eaec902376628301 (patch) | |
| tree | 937c4b063d3b513509c659a28def85262e2d2d50 /OvmfPkg/OvmfPkgX64.dsc | |
| parent | 5eab38ad03bcdc2e26134ce7caaf4f30ae2127d1 (diff) | |
| download | edk2-82c1aa87f991d3fd7ec48b14eaec902376628301.tar.gz edk2-82c1aa87f991d3fd7ec48b14eaec902376628301.tar.bz2 edk2-82c1aa87f991d3fd7ec48b14eaec902376628301.zip | |
OvmfPkg/PlatformInitLib: move mmconfig to 0xe0000000
Also swap the ordering of 32bit PCI MMIO window on q35, i.e. use the
room between end of low memory and the start of the mmconfig bar.
With a typical configuration on modern qemu with gigabyte-aligned memory
the MMIO window start at 0x8000000, sized 1532 MB. In case there is
memory present above 0x80000000 the window will start at 0xc0000000
instead, with 512 MB size.
This depends on qemu commit 4a4418369d6d ("q35: fix mmconfig and
PCI0._CRS"), so it raises the bar for the lowest supported version
to qemu 4.1 (released Aug 2019).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Diffstat (limited to 'OvmfPkg/OvmfPkgX64.dsc')
| -rw-r--r-- | OvmfPkg/OvmfPkgX64.dsc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc index 00f7005fca..4a276e1ec0 100644 --- a/OvmfPkg/OvmfPkgX64.dsc +++ b/OvmfPkg/OvmfPkgX64.dsc @@ -586,7 +586,7 @@ #
# On Q35 machine types that QEMU intends to support in the long term, QEMU
# never lets the RAM below 4 GB exceed 2816 MB.
- gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress|0xB0000000
+ gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress|0xE0000000
!if $(SOURCE_DEBUG_ENABLE) == TRUE
gEfiSourceLevelDebugPkgTokenSpaceGuid.PcdDebugLoadImageMethod|0x2
|