Commit 2dc7094b authored May 06, 2007 by Matthew Gregan Committed by Avi Kivity Jul 16, 2007

KVM: Implement IA32_EBL_CR_POWERON msr



Attempting to boot the default 'bsd' kernel of OpenBSD 4.1 i386 in a guest
fails early in the kernel init inside p3_get_bus_clock while trying to read
the IA32_EBL_CR_POWERON MSR.  KVM logs an 'unhandled MSR' message and the
guest kernel faults.

This patch is sufficient to allow OpenBSD to boot, after which it seems to
run fine.  I'm not sure if this is the correct solution for dealing with
this particular MSR, but it works for me.

Signed-off-by: Matthew Gregan <kinetik@flim.org>
Signed-off-by: Avi Kivity <avi@qumranet.com>

parent a3a06367

drivers/kvm/kvm_main.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1470,6 +1470,7 @@ int kvm_get_msr_common(struct kvm_vcpu vcpu, u32 msr, u64 pdata)
		case MSR_IA32_MC0_MISC+16:
		case MSR_IA32_UCODE_REV:
		case MSR_IA32_PERF_STATUS:
		case MSR_IA32_EBL_CR_POWERON:
		/* MTRR registers */
		case 0xfe:
		case 0x200 ... 0x2ff: