From e15a113700324f7fdcee95589875daed2b98a2fe Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Mon, 30 Nov 2009 03:02:02 +0000 Subject: powerpc/kvm: Sync guest visible MMU state Currently userspace has no chance to find out which virtual address space we're in and resolve addresses. While that is a big problem for migration, it's also unpleasent when debugging, as gdb and the monitor don't work on virtual addresses. This patch exports enough of the MMU segment state to userspace to make debugging work and thus also includes the groundwork for migration. Signed-off-by: Alexander Graf Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/kvm_book3s.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/powerpc/include/asm/kvm_book3s.h') diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index c601133..74b7369 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -46,6 +46,7 @@ struct kvmppc_sr { }; struct kvmppc_bat { + u64 raw; u32 bepi; u32 bepi_mask; bool vs; @@ -113,6 +114,8 @@ extern struct kvmppc_pte *kvmppc_mmu_find_pte(struct kvm_vcpu *vcpu, u64 ea, boo extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong eaddr, int size, void *ptr, bool data); extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong eaddr, int size, void *ptr); extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec); +extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, + bool upper, u32 val); extern u32 kvmppc_trampoline_lowmem; extern u32 kvmppc_trampoline_enter; -- cgit v1.1