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| author | Corvin Köhne <c.koehne@beckhoff.com> | 2021-07-05 13:08:42 +0200 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-07-05 12:12:00 +0000 |
| commit | 44ced03798d3af47577af3e7a865be33383766d0 (patch) | |
| tree | 022bfbba98da7158c9b7aa90e7ec136f93161235 /OvmfPkg/Bhyve/PlatformPei | |
| parent | 1e0c441c922d92dae736f1b47df05373490045ae (diff) | |
| download | edk2-44ced03798d3af47577af3e7a865be33383766d0.tar.gz edk2-44ced03798d3af47577af3e7a865be33383766d0.tar.bz2 edk2-44ced03798d3af47577af3e7a865be33383766d0.zip | |
OvmfPkg/Bhyve: use static PCI32Base address
It's neccessary to allocate a Graphics Stolen Memory area to enable
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
Reviewed-by: Peter Grehan <grehan@freebsd.org>
Acked-by: Rebecca Cran <rebecca@bsdio.com>
Signed-off-by: Corvin Köhne <c.koehne@beckhoff.com>
Message-Id: <20210705110842.14088-2-c.koehne@beckhoff.com>
Diffstat (limited to 'OvmfPkg/Bhyve/PlatformPei')
| -rw-r--r-- | OvmfPkg/Bhyve/PlatformPei/Platform.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/OvmfPkg/Bhyve/PlatformPei/Platform.c b/OvmfPkg/Bhyve/PlatformPei/Platform.c index 3a414ffcb7..d980e3fcb0 100644 --- a/OvmfPkg/Bhyve/PlatformPei/Platform.c +++ b/OvmfPkg/Bhyve/PlatformPei/Platform.c @@ -191,7 +191,9 @@ MemMapInitialization ( ASSERT (PciExBarBase <= MAX_UINT32 - SIZE_256MB);
PciBase = (UINT32)(PciExBarBase + SIZE_256MB);
} else {
- PciBase = (TopOfLowRam < BASE_2GB) ? BASE_2GB : TopOfLowRam;
+ PciBase = PcdGet64 (PcdPciMmio32Base);
+ if (PciBase == 0)
+ PciBase = (TopOfLowRam < BASE_2GB) ? BASE_2GB : TopOfLowRam;
}
//
|