From: Alexander Graf <[email protected]> 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 <[email protected]> Signed-off-by: Avi Kivity <[email protected]> diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 221ba62..7492fe8 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 e8003ff..1804c2c 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)); -- To unsubscribe from this list: send the line "unsubscribe kvm-commits" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
