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| author | Thomas Barrett <tbarrett@crusoeenergy.com> | 2024-01-12 18:31:43 +0000 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-01-15 15:57:42 +0000 |
| commit | 6d204e8fbcfe4b38de0c5462ee68ebce6f426a2c (patch) | |
| tree | bb0a5b1b16e436fb26155ea92e9a025c590a0998 /OvmfPkg | |
| parent | bfad87ceec39eae9f836a5e2c9597948fc1a7395 (diff) | |
| download | edk2-6d204e8fbcfe4b38de0c5462ee68ebce6f426a2c.zip edk2-6d204e8fbcfe4b38de0c5462ee68ebce6f426a2c.tar.gz edk2-6d204e8fbcfe4b38de0c5462ee68ebce6f426a2c.tar.bz2 | |
OvmfPkg: Update PlatformAddressWidthInitialization for CloudHv
In addition to initializing the PhysMemAddressWidth and
FirstNonAddress fields in PlatformInfoHob, the
PlatformAddressWidthInitialization function is responsible
for initializing the PcdPciMmio64Base and PcdPciMmio64Size
fields.
Currently, for CloudHv guests, the PcdPciMmio64Base is
placed immediately after either the 4G boundary or the
last RAM region, whichever is greater. We do not change
this behavior.
Previously, when booting CloudHv guests with greater than
1TiB of high memory, the PlatformAddressWidthInitialization
function incorrect calculates the amount of RAM using the
overflowed 24-bit CMOS register.
Now, we update the PlatformAddressWidthInitialization
behavior on CloudHv to scan the E820 entries to detect
the amount of RAM. This allows CloudHv guests to boot with
greater than 1TiB of RAM
Signed-off-by: Thomas Barrett <tbarrett@crusoeenergy.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'OvmfPkg')
| -rw-r--r-- | OvmfPkg/Library/PlatformInitLib/MemDetect.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/OvmfPkg/Library/PlatformInitLib/MemDetect.c b/OvmfPkg/Library/PlatformInitLib/MemDetect.c index 76a9dc9..f042517 100644 --- a/OvmfPkg/Library/PlatformInitLib/MemDetect.c +++ b/OvmfPkg/Library/PlatformInitLib/MemDetect.c @@ -874,6 +874,18 @@ PlatformAddressWidthInitialization ( if (PlatformInfoHob->HostBridgeDevId == 0xffff /* microvm */) {
PlatformAddressWidthFromCpuid (PlatformInfoHob, FALSE);
return;
+ } else if (PlatformInfoHob->HostBridgeDevId == CLOUDHV_DEVICE_ID) {
+ PlatformInfoHob->FirstNonAddress = BASE_4GB;
+ Status = PlatformScanE820 (PlatformGetFirstNonAddressCB, PlatformInfoHob);
+ if (EFI_ERROR (Status)) {
+ PlatformInfoHob->FirstNonAddress = BASE_4GB + PlatformGetSystemMemorySizeAbove4gb ();
+ }
+
+ PlatformInfoHob->PcdPciMmio64Base = PlatformInfoHob->FirstNonAddress;
+ PlatformAddressWidthFromCpuid (PlatformInfoHob, FALSE);
+ PlatformInfoHob->PcdPciMmio64Size = PlatformInfoHob->FirstNonAddress - PlatformInfoHob->PcdPciMmio64Base;
+
+ return;
}
//
|