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| author | Gerd Hoffmann <kraxel@redhat.com> | 2024-11-13 13:44:26 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2024-11-15 12:26:04 +0100 |
| commit | 2a93c2765b790e14492549cca0e93e7546ae86b6 (patch) | |
| tree | 12ae20ec6a5dc9865c89ac55d1090dd28a429f66 | |
| parent | 62a1429ec1ec67f14c039d97627a6a7ef70a983c (diff) | |
| download | seabios-2a93c2765b790e14492549cca0e93e7546ae86b6.tar.gz | |
add guest hint variable
This holds the hint whenever the guest is 32-bit or 64-bit, so
seabios can optimize the memory layout (pci bar placement)
accordingly.
Default is '32' for best backward compatibility.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| -rw-r--r-- | src/fw/paravirt.c | 2 | ||||
| -rw-r--r-- | src/fw/paravirt.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/src/fw/paravirt.c b/src/fw/paravirt.c index e5d4eca0..fbd00f1c 100644 --- a/src/fw/paravirt.c +++ b/src/fw/paravirt.c @@ -36,6 +36,8 @@ u64 RamSizeOver4G; u8 CPUPhysBits; // 64bit processor u8 CPULongMode; +// memory layout hint (32bit or 64bit guests). +u8 GuestHint = 32; // Type of emulator platform. int PlatformRunningOn VARFSEG; // cfg enabled diff --git a/src/fw/paravirt.h b/src/fw/paravirt.h index 62a2cd07..cf28528e 100644 --- a/src/fw/paravirt.h +++ b/src/fw/paravirt.h @@ -33,6 +33,7 @@ extern u64 RamSizeOver4G; extern int PlatformRunningOn; extern u8 CPUPhysBits; extern u8 CPULongMode; +extern u8 GuestHint; static inline int runningOnQEMU(void) { return CONFIG_QEMU || ( |