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| author | Michael Ellerman <mpe@ellerman.id.au> | 2019-03-02 14:42:28 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-03-02 14:42:28 +1100 |
| commit | 2de04718ecf15bda3ca934b39855b763cb385fe6 (patch) | |
| tree | 4d6db1f2d11af22e9636e9bcd8d0dc9822a13ade /arch | |
| parent | bd3524feac214f0ab9693c6d4c0cb5be8e1318b9 (diff) | |
| parent | c3c7470c75566a077c8dc71dcf8f1948b8ddfab4 (diff) | |
| download | linux-2de04718ecf15bda3ca934b39855b763cb385fe6.tar.bz2 | |
Merge branch 'topic/ppc-kvm' into next
Merge another commit in the topic/ppc-kvm branch we're sharing with
kvm-ppc.
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_rmhandlers.S | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index f24f6a2f8eb5..25043b50cb30 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -58,6 +58,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300) #define STACK_SLOT_DAWR (SFS-56) #define STACK_SLOT_DAWRX (SFS-64) #define STACK_SLOT_HFSCR (SFS-72) +#define STACK_SLOT_AMR (SFS-80) +#define STACK_SLOT_UAMOR (SFS-88) /* the following is used by the P9 short path */ #define STACK_SLOT_NVGPRS (SFS-152) /* 18 gprs */ @@ -726,11 +728,9 @@ BEGIN_FTR_SECTION mfspr r5, SPRN_TIDR mfspr r6, SPRN_PSSCR mfspr r7, SPRN_PID - mfspr r8, SPRN_IAMR std r5, STACK_SLOT_TID(r1) std r6, STACK_SLOT_PSSCR(r1) std r7, STACK_SLOT_PID(r1) - std r8, STACK_SLOT_IAMR(r1) mfspr r5, SPRN_HFSCR std r5, STACK_SLOT_HFSCR(r1) END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) @@ -738,11 +738,18 @@ BEGIN_FTR_SECTION mfspr r5, SPRN_CIABR mfspr r6, SPRN_DAWR mfspr r7, SPRN_DAWRX + mfspr r8, SPRN_IAMR std r5, STACK_SLOT_CIABR(r1) std r6, STACK_SLOT_DAWR(r1) std r7, STACK_SLOT_DAWRX(r1) + std r8, STACK_SLOT_IAMR(r1) END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S) + mfspr r5, SPRN_AMR + std r5, STACK_SLOT_AMR(r1) + mfspr r6, SPRN_UAMOR + std r6, STACK_SLOT_UAMOR(r1) + BEGIN_FTR_SECTION /* Set partition DABR */ /* Do this before re-enabling PMU to avoid P7 DABR corruption bug */ @@ -1631,22 +1638,25 @@ ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300) mtspr SPRN_PSPB, r0 mtspr SPRN_WORT, r0 BEGIN_FTR_SECTION - mtspr SPRN_IAMR, r0 mtspr SPRN_TCSCR, r0 /* Set MMCRS to 1<<31 to freeze and disable the SPMC counters */ li r0, 1 sldi r0, r0, 31 mtspr SPRN_MMCRS, r0 END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300) -8: - /* Save and reset AMR and UAMOR before turning on the MMU */ + /* Save and restore AMR, IAMR and UAMOR before turning on the MMU */ + ld r8, STACK_SLOT_IAMR(r1) + mtspr SPRN_IAMR, r8 + +8: /* Power7 jumps back in here */ mfspr r5,SPRN_AMR mfspr r6,SPRN_UAMOR std r5,VCPU_AMR(r9) std r6,VCPU_UAMOR(r9) - li r6,0 - mtspr SPRN_AMR,r6 + ld r5,STACK_SLOT_AMR(r1) + ld r6,STACK_SLOT_UAMOR(r1) + mtspr SPRN_AMR, r5 mtspr SPRN_UAMOR, r6 /* Switch DSCR back to host value */ @@ -1746,11 +1756,9 @@ BEGIN_FTR_SECTION ld r5, STACK_SLOT_TID(r1) ld r6, STACK_SLOT_PSSCR(r1) ld r7, STACK_SLOT_PID(r1) - ld r8, STACK_SLOT_IAMR(r1) mtspr SPRN_TIDR, r5 mtspr SPRN_PSSCR, r6 mtspr SPRN_PID, r7 - mtspr SPRN_IAMR, r8 END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) #ifdef CONFIG_PPC_RADIX_MMU |