xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc/kvm: Sync guest visible MMU state

Browse Source 
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 <agraf@suse.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Alexander Graf
2009-11-30 03:02:02 +00:00
committed by Benjamin Herrenschmidt
parent c0cefebc0b
commit e15a113700
8 changed files with 101 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/powerpc/include/asm/kvm_book3s.h
View File

@@ -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;