diff options
Diffstat (limited to 'arch/powerpc/kvm/booke_interrupts.S')
| -rw-r--r-- | arch/powerpc/kvm/booke_interrupts.S | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/booke_interrupts.S b/arch/powerpc/kvm/booke_interrupts.S index 55410cc45ad7..8cb3dfe29f75 100644 --- a/arch/powerpc/kvm/booke_interrupts.S +++ b/arch/powerpc/kvm/booke_interrupts.S @@ -13,6 +13,7 @@ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * Copyright IBM Corp. 2007 + * Copyright 2011 Freescale Semiconductor, Inc. * * Authors: Hollis Blanchard <hollisb@us.ibm.com> */ @@ -239,6 +240,14 @@ _GLOBAL(kvmppc_resume_host) heavyweight_exit: /* Not returning to guest. */ +#ifdef CONFIG_SPE + /* save guest SPEFSCR and load host SPEFSCR */ + mfspr r9, SPRN_SPEFSCR + stw r9, VCPU_SPEFSCR(r4) + lwz r9, VCPU_HOST_SPEFSCR(r4) + mtspr SPRN_SPEFSCR, r9 +#endif + /* We already saved guest volatile register state; now save the * non-volatiles. */ stw r15, VCPU_GPR(r15)(r4) @@ -340,6 +349,14 @@ _GLOBAL(__kvmppc_vcpu_run) lwz r30, VCPU_GPR(r30)(r4) lwz r31, VCPU_GPR(r31)(r4) +#ifdef CONFIG_SPE + /* save host SPEFSCR and load guest SPEFSCR */ + mfspr r3, SPRN_SPEFSCR + stw r3, VCPU_HOST_SPEFSCR(r4) + lwz r3, VCPU_SPEFSCR(r4) + mtspr SPRN_SPEFSCR, r3 +#endif + lightweight_exit: stw r2, HOST_R2(r1) @@ -425,3 +442,24 @@ lightweight_exit: lwz r3, VCPU_GPR(r3)(r4) lwz r4, VCPU_GPR(r4)(r4) rfi + +#ifdef CONFIG_SPE +_GLOBAL(kvmppc_save_guest_spe) + cmpi 0,r3,0 + beqlr- + SAVE_32EVRS(0, r4, r3, VCPU_EVR) + evxor evr6, evr6, evr6 + evmwumiaa evr6, evr6, evr6 + li r4,VCPU_ACC + evstddx evr6, r4, r3 /* save acc */ + blr + +_GLOBAL(kvmppc_load_guest_spe) + cmpi 0,r3,0 + beqlr- + li r4,VCPU_ACC + evlddx evr6,r4,r3 + evmra evr6,evr6 /* load acc */ + REST_32EVRS(0, r4, r3, VCPU_EVR) + blr +#endif |