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Detect KVM hypervisor and set /hypervisor properties accordingly

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The ePAPR spec requires us to have a /hypervisor node that tells the guest OS
which hypervisor it's running on and which hypercall to use to call into it.

So let's fetch all that information from Qemu's fw_cfg interface and put it
into place, making everyone happy.

Signed-off-by: Alexander Graf <agraf@suse.de>

git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@853 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Alexander Graf
2010-08-17 15:42:10 +00:00
parent 0d2c29f1ef
commit 736d3849ea
3 changed files with 62 additions and 0 deletions
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3
include/arch/common/fw_cfg.h
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@@ -41,6 +41,9 @@
#define FW_CFG_PPC_DEPTH (FW_CFG_ARCH_LOCAL + 0x02)
#define FW_CFG_PPC_TBFREQ (FW_CFG_ARCH_LOCAL + 0x03)
#define FW_CFG_PPC_CPUFREQ (FW_CFG_ARCH_LOCAL + 0x04)
#define FW_CFG_PPC_IS_KVM (FW_CFG_ARCH_LOCAL + 0x05)
#define FW_CFG_PPC_KVM_HC (FW_CFG_ARCH_LOCAL + 0x06)
#define FW_CFG_PPC_KVM_PID (FW_CFG_ARCH_LOCAL + 0x07)
#define FW_CFG_INVALID 0xffff