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| author |   Alexander Graf <agraf@suse.de> | 2010-04-16 00:11:51 +0200 |
|---|---|---|
| committer |   Avi Kivity <avi@redhat.com> | 2010-05-17 12:18:43 +0300 |
| commit | 97e492558f423d99c51eb934506b7a3d7c64613b (patch) | |
| tree | bcd578e91456e46cd4d22f94d20897a74c4f983d | |
| parent | KVM: PPC: Remove fetch fail code (diff) | |
| download | linux-dev-97e492558f423d99c51eb934506b7a3d7c64613b.tar.xz linux-dev-97e492558f423d99c51eb934506b7a3d7c64613b.zip | |
KVM: PPC: Add SVCPU to Book3S_32
We need to keep the pointer to the shadow vcpu somewhere accessible from
within really early interrupt code. The best fit I found was the thread
struct, as that resides in an SPRG.
So let's put a pointer to the shadow vcpu in the thread struct and add
an asm-offset so we can find it.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/kernel/asm-offsets.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 221ba6240464..7492fe8ad6e4 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -229,6 +229,9 @@ struct thread_struct { unsigned long spefscr; /* SPE & eFP status */ int used_spe; /* set if process has used spe */ #endif /* CONFIG_SPE */ +#ifdef CONFIG_KVM_BOOK3S_32_HANDLER + void* kvm_shadow_vcpu; /* KVM internal data */ +#endif /* CONFIG_KVM_BOOK3S_32_HANDLER */ }; #define ARCH_MIN_TASKALIGN 16 diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index e8003ff81eef..1804c2cd1dfd 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -108,6 +108,9 @@ int main(void) DEFINE(THREAD_USED_SPE, offsetof(struct thread_struct, used_spe)); #endif /* CONFIG_SPE */ #endif /* CONFIG_PPC64 */ +#ifdef CONFIG_KVM_BOOK3S_32_HANDLER + DEFINE(THREAD_KVM_SVCPU, offsetof(struct thread_struct, kvm_shadow_vcpu)); +#endif DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); DEFINE(TI_LOCAL_FLAGS, offsetof(struct thread_info, local_flags)); |