diff options
Diffstat (limited to 'OvmfPkg')
| -rw-r--r-- | OvmfPkg/PlatformPei/Platform.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/OvmfPkg/PlatformPei/Platform.c b/OvmfPkg/PlatformPei/Platform.c index 7d09412..8e4da41 100644 --- a/OvmfPkg/PlatformPei/Platform.c +++ b/OvmfPkg/PlatformPei/Platform.c @@ -218,11 +218,10 @@ MemMapInitialization ( TopOfLowRam = GetSystemMemorySizeBelow4gb ();
if (mHostBridgeDevId == INTEL_Q35_MCH_DEVICE_ID) {
//
- // A 3GB base will always fall into Q35's 32-bit PCI host aperture,
- // regardless of the Q35 MMCONFIG BAR. Correspondingly, QEMU never lets
- // the RAM below 4 GB exceed it.
+ // On Q35 machine types that QEMU intends to support in the long term,
+ // QEMU never lets the RAM below 4 GB exceed 2 GB.
//
- PciBase = BASE_2GB + BASE_1GB;
+ PciBase = BASE_2GB;
ASSERT (TopOfLowRam <= PciBase);
} else {
PciBase = (TopOfLowRam < BASE_2GB) ? BASE_2GB : TopOfLowRam;
|