Date: Tue, 15 Jun 2021 10:30:00 +0200 From: =?UTF-8?q?Corvin=20K=C3=B6hne?= <c.koehne@beckhoff.com> To: <freebsd-virtualization@freebsd.org> Cc: <p.bruenn@beckhoff.com>, =?UTF-8?q?Corvin=20K=C3=B6hne?= <c.koehne@beckhoff.com> Subject: [PATCH 4/4] OvmfPkg/Bhyve: use static PCI32Base address Message-ID: <20210615083000.1286-5-c.koehne@beckhoff.com> In-Reply-To: <20210615083000.1286-1-c.koehne@beckhoff.com> References: <20210615083000.1286-1-c.koehne@beckhoff.com>
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=EF=BB=BFIt's neccessary to allocate a Graphics Stolen Memory area to enabl=
e
GPU-Passthrough for integrated Intel GPUs. Therefore, use a new
memory layout with a static Pci32Baseaddress.
Old layout:
[... , lowmemlimit] RAM
[lowmemlimit, 0xE000 0000] PCI Space
New layout:
[... , lowmemlimit] RAM
[lowmemlimit, gsmbase ] Memory hole (may be absent)
[gsmbase , 0xC000 0000] GSM (may be absent)
[0xC000 0000, 0xE000 0000] PCI Space
Signed-off-by: Corvin K=C3=B6hne <c.koehne@beckhoff.com>
---
OvmfPkg/Bhyve/BhyveX64.dsc | 4 ++--
OvmfPkg/Bhyve/PlatformPei/Platform.c | 4 +++-
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/OvmfPkg/Bhyve/BhyveX64.dsc b/OvmfPkg/Bhyve/BhyveX64.dsc
index c35bf18449..e5d1dbccff 100644
--- a/OvmfPkg/Bhyve/BhyveX64.dsc
+++ b/OvmfPkg/Bhyve/BhyveX64.dsc
@@ -537,8 +537,8 @@
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId|0
gUefiOvmfPkgTokenSpaceGuid.PcdPciIoBase|0x0
gUefiOvmfPkgTokenSpaceGuid.PcdPciIoSize|0x0
- gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Base|0x0
- gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Size|0x0
+ gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Base|0xC0000000
+ gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio32Size|0x20000000
gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Base|0x0
gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Size|0x800000000
=20
diff --git a/OvmfPkg/Bhyve/PlatformPei/Platform.c b/OvmfPkg/Bhyve/PlatformP=
ei/Platform.c
index 3a414ffcb7..f38e74ccfc 100644
--- a/OvmfPkg/Bhyve/PlatformPei/Platform.c
+++ b/OvmfPkg/Bhyve/PlatformPei/Platform.c
@@ -191,7 +191,9 @@ MemMapInitialization (
ASSERT (PciExBarBase <=3D MAX_UINT32 - SIZE_256MB);
PciBase =3D (UINT32)(PciExBarBase + SIZE_256MB);
} else {
- PciBase =3D (TopOfLowRam < BASE_2GB) ? BASE_2GB : TopOfLowRam;
+ PciBase =3D PcdGet64(PcdPciMmio32Base);
+ if (PciBase =3D=3D 0)
+ PciBase =3D (TopOfLowRam < BASE_2GB) ? BASE_2GB : TopOfLowRam;
}
=20
//
--=20
2.11.0
Beckhoff Automation GmbH & Co. KG | Managing Director: Dipl. Phys. Hans Bec=
khoff
Registered office: Verl, Germany | Register court: Guetersloh HRA 7075
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