summaryrefslogtreecommitdiff
path: root/arch/powerpc/kvm/book3s_segment.S
diff options
context:
space:
mode:
authorPaul Mundt <lethal@linux-sh.org>2012-05-18 09:13:27 (GMT)
committerPaul Mundt <lethal@linux-sh.org>2012-05-18 09:13:27 (GMT)
commitc1dbccc3c7cc70e8211a7ad6ba55ecbc18e77a5a (patch)
tree570fbd1ab42d12257a820460fae0e6e7bc891900 /arch/powerpc/kvm/book3s_segment.S
parent00d6025e58c6e3b229e28cab721c568af5b1ae05 (diff)
parent58796ce67a80e8725220af83c5a550bf6a4dab12 (diff)
downloadlinux-fsl-qoriq-c1dbccc3c7cc70e8211a7ad6ba55ecbc18e77a5a.tar.xz
Merge branch 'sh/evt2irq-migration' into sh-latest
Conflicts: arch/sh/kernel/cpu/sh3/setup-sh770x.c arch/sh/kernel/cpu/sh3/setup-sh7710.c arch/sh/kernel/cpu/sh3/setup-sh7720.c arch/sh/kernel/cpu/sh4/setup-sh7750.c arch/sh/kernel/cpu/sh4a/setup-sh7343.c arch/sh/kernel/cpu/sh4a/setup-sh7366.c arch/sh/kernel/cpu/sh4a/setup-sh7722.c arch/sh/kernel/cpu/sh4a/setup-sh7723.c arch/sh/kernel/cpu/sh4a/setup-sh7724.c arch/sh/kernel/cpu/sh4a/setup-sh7757.c arch/sh/kernel/cpu/sh4a/setup-sh7763.c arch/sh/kernel/cpu/sh4a/setup-sh7770.c arch/sh/kernel/cpu/sh4a/setup-sh7785.c arch/sh/kernel/cpu/sh4a/setup-sh7786.c Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/powerpc/kvm/book3s_segment.S')
-rw-r--r--arch/powerpc/kvm/book3s_segment.S42
1 files changed, 28 insertions, 14 deletions
diff --git a/arch/powerpc/kvm/book3s_segment.S b/arch/powerpc/kvm/book3s_segment.S
index 0676ae2..6e6e9ce 100644
--- a/arch/powerpc/kvm/book3s_segment.S
+++ b/arch/powerpc/kvm/book3s_segment.S
@@ -197,7 +197,8 @@ kvmppc_interrupt:
/* Save guest PC and MSR */
#ifdef CONFIG_PPC64
BEGIN_FTR_SECTION
- andi. r0,r12,0x2
+ andi. r0, r12, 0x2
+ cmpwi cr1, r0, 0
beq 1f
mfspr r3,SPRN_HSRR0
mfspr r4,SPRN_HSRR1
@@ -250,6 +251,12 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
beq ld_last_prev_inst
cmpwi r12, BOOK3S_INTERRUPT_ALIGNMENT
beq- ld_last_inst
+#ifdef CONFIG_PPC64
+BEGIN_FTR_SECTION
+ cmpwi r12, BOOK3S_INTERRUPT_H_EMUL_ASSIST
+ beq- ld_last_inst
+END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
+#endif
b no_ld_last_inst
@@ -316,23 +323,17 @@ no_dcbz32_off:
* Having set up SRR0/1 with the address where we want
* to continue with relocation on (potentially in module
* space), we either just go straight there with rfi[d],
- * or we jump to an interrupt handler with bctr if there
- * is an interrupt to be handled first. In the latter
- * case, the rfi[d] at the end of the interrupt handler
- * will get us back to where we want to continue.
+ * or we jump to an interrupt handler if there is an
+ * interrupt to be handled first. In the latter case,
+ * the rfi[d] at the end of the interrupt handler will
+ * get us back to where we want to continue.
*/
- cmpwi r12, BOOK3S_INTERRUPT_EXTERNAL
- beq 1f
- cmpwi r12, BOOK3S_INTERRUPT_DECREMENTER
- beq 1f
- cmpwi r12, BOOK3S_INTERRUPT_PERFMON
-1: mtctr r12
-
/* Register usage at this point:
*
* R1 = host R1
* R2 = host R2
+ * R10 = raw exit handler id
* R12 = exit handler id
* R13 = shadow vcpu (32-bit) or PACA (64-bit)
* SVCPU.* = guest *
@@ -342,12 +343,25 @@ no_dcbz32_off:
PPC_LL r6, HSTATE_HOST_MSR(r13)
PPC_LL r8, HSTATE_VMHANDLER(r13)
- /* Restore host msr -> SRR1 */
+#ifdef CONFIG_PPC64
+BEGIN_FTR_SECTION
+ beq cr1, 1f
+ mtspr SPRN_HSRR1, r6
+ mtspr SPRN_HSRR0, r8
+END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
+#endif
+1: /* Restore host msr -> SRR1 */
mtsrr1 r6
/* Load highmem handler address */
mtsrr0 r8
/* RFI into the highmem handler, or jump to interrupt handler */
- beqctr
+ cmpwi r12, BOOK3S_INTERRUPT_EXTERNAL
+ beqa BOOK3S_INTERRUPT_EXTERNAL
+ cmpwi r12, BOOK3S_INTERRUPT_DECREMENTER
+ beqa BOOK3S_INTERRUPT_DECREMENTER
+ cmpwi r12, BOOK3S_INTERRUPT_PERFMON
+ beqa BOOK3S_INTERRUPT_PERFMON
+
RFI
kvmppc_handler_trampoline_exit_end: