From patchwork Wed Jan 16 08:20:42 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [1/8] KVM: PPC: booke: use vcpu reference from thread_struct Date: Tue, 15 Jan 2013 22:20:42 -0000 From: Bharat Bhushan X-Patchwork-Id: 212430 Message-Id: <1358324449-30111-2-git-send-email-bharat.bhushan@freescale.com> To: , , Cc: Bharat Bhushan , Bharat Bhushan From: Bharat Bhushan Like other places, use thread_struct to get vcpu reference. Signed-off-by: Bharat Bhushan --- arch/powerpc/include/asm/reg.h | 2 -- arch/powerpc/kernel/asm-offsets.c | 2 +- arch/powerpc/kvm/booke_interrupts.S | 6 ++---- 3 files changed, 3 insertions(+), 7 deletions(-) diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 97d3727..11ae3d8 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -919,8 +919,6 @@ #define SPRN_SPRG_RSCRATCH_DBG SPRN_SPRG9 #define SPRN_SPRG_WSCRATCH_DBG SPRN_SPRG9 #endif -#define SPRN_SPRG_RVCPU SPRN_SPRG1 -#define SPRN_SPRG_WVCPU SPRN_SPRG1 #endif #ifdef CONFIG_8xx diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 4e23ba2..46f6afd 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -117,7 +117,7 @@ int main(void) #ifdef CONFIG_KVM_BOOK3S_32_HANDLER DEFINE(THREAD_KVM_SVCPU, offsetof(struct thread_struct, kvm_shadow_vcpu)); #endif -#ifdef CONFIG_KVM_BOOKE_HV +#if defined(CONFIG_KVM) && defined(CONFIG_BOOKE) DEFINE(THREAD_KVM_VCPU, offsetof(struct thread_struct, kvm_vcpu)); #endif diff --git a/arch/powerpc/kvm/booke_interrupts.S b/arch/powerpc/kvm/booke_interrupts.S index bb46b32..ca16d57 100644 --- a/arch/powerpc/kvm/booke_interrupts.S +++ b/arch/powerpc/kvm/booke_interrupts.S @@ -56,7 +56,8 @@ _GLOBAL(kvmppc_handler_\ivor_nr) /* Get pointer to vcpu and record exit number. */ mtspr \scratch , r4 - mfspr r4, SPRN_SPRG_RVCPU + mfspr r4, SPRN_SPRG_THREAD + lwz r4, THREAD_KVM_VCPU(r4) stw r3, VCPU_GPR(R3)(r4) stw r5, VCPU_GPR(R5)(r4) stw r6, VCPU_GPR(R6)(r4) @@ -402,9 +403,6 @@ lightweight_exit: lwz r8, kvmppc_booke_handlers@l(r8) mtspr SPRN_IVPR, r8 - /* Save vcpu pointer for the exception handlers. */ - mtspr SPRN_SPRG_WVCPU, r4 - lwz r5, VCPU_SHARED(r4) /* Can't switch the stack pointer until after IVPR is switched,