/*
* We layout physical memory as follows:
* 0x0000 - 0x00ff : Secondary processor spin code
- * 0x0100 - 0x2fff : pSeries Interrupt prologs
- * 0x3000 - 0x5fff : interrupt support common interrupt prologs
- * 0x6000 - 0x6fff : Initial (CPU0) segment table
+ * 0x0100 - 0x17ff : pSeries Interrupt prologs
+ * 0x1800 - 0x4000 : interrupt support common interrupt prologs
+ * 0x4000 - 0x5fff : pSeries interrupts with IR=1,DR=1
+ * 0x6000 - 0x6fff : more interrupt support including for IR=1,DR=1
* 0x7000 - 0x7fff : FWNMI data area
- * 0x8000 - : Early init and support code
+ * 0x8000 - 0x8fff : Initial (CPU0) segment table
+ * 0x9000 - : Early init and support code
*/
/* Syscall routine is used twice, in reloc-off and reloc-on paths */
#define SYSCALL_PSERIES_1 \
b . /* prevent spec. execution */
#endif /* __DISABLED__ */
- .align 7
- .globl __end_interrupts
-__end_interrupts:
-
/*
* Code from here down to __end_handlers is invoked from the
* exception prologs above. Because the prologs assemble the
STD_EXCEPTION_COMMON(0x1800, cbe_thermal, .cbe_thermal_exception)
#endif /* CONFIG_CBE_RAS */
+ /*
+ * Relocation-on interrupts: A subset of the interrupts can be delivered
+ * with IR=1/DR=1, if AIL==2 and MSR.HV won't be changed by delivering
+ * it. Addresses are the same as the original interrupt addresses, but
+ * offset by 0xc000000000004000.
+ * It's impossible to receive interrupts below 0x300 via this mechanism.
+ * KVM: None of these traps are from the guest ; anything that escalated
+ * to HV=1 from HV=0 is delivered via real mode handlers.
+ */
+
+ /*
+ * This uses the standard macro, since the original 0x300 vector
+ * only has extra guff for STAB-based processors -- which never
+ * come here.
+ */
+ STD_RELON_EXCEPTION_PSERIES(0x4300, 0x300, data_access)
+ . = 0x4380
+ .globl data_access_slb_relon_pSeries
+data_access_slb_relon_pSeries:
+ HMT_MEDIUM
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_1(PACA_EXSLB, NOTEST, 0x380)
+ std r3,PACA_EXSLB+EX_R3(r13)
+ mfspr r3,SPRN_DAR
+ mfspr r12,SPRN_SRR1
+#ifndef CONFIG_RELOCATABLE
+ b .slb_miss_realmode
+#else
+ /*
+ * We can't just use a direct branch to .slb_miss_realmode
+ * because the distance from here to there depends on where
+ * the kernel ends up being put.
+ */
+ mfctr r11
+ ld r10,PACAKBASE(r13)
+ LOAD_HANDLER(r10, .slb_miss_realmode)
+ mtctr r10
+ bctr
+#endif
+
+ STD_RELON_EXCEPTION_PSERIES(0x4400, 0x400, instruction_access)
+ . = 0x4480
+ .globl instruction_access_slb_relon_pSeries
+instruction_access_slb_relon_pSeries:
+ HMT_MEDIUM
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_1(PACA_EXSLB, NOTEST, 0x480)
+ std r3,PACA_EXSLB+EX_R3(r13)
+ mfspr r3,SPRN_SRR0 /* SRR0 is faulting address */
+ mfspr r12,SPRN_SRR1
+#ifndef CONFIG_RELOCATABLE
+ b .slb_miss_realmode
+#else
+ mfctr r11
+ ld r10,PACAKBASE(r13)
+ LOAD_HANDLER(r10, .slb_miss_realmode)
+ mtctr r10
+ bctr
+#endif
+
+ . = 0x4500
+ .globl hardware_interrupt_relon_pSeries;
+ .globl hardware_interrupt_relon_hv;
+hardware_interrupt_relon_pSeries:
+hardware_interrupt_relon_hv:
+ BEGIN_FTR_SECTION
+ _MASKABLE_RELON_EXCEPTION_PSERIES(0x502, hardware_interrupt, EXC_HV, SOFTEN_TEST_HV)
+ FTR_SECTION_ELSE
+ _MASKABLE_RELON_EXCEPTION_PSERIES(0x500, hardware_interrupt, EXC_STD, SOFTEN_TEST_PR)
+ ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_206)
+ STD_RELON_EXCEPTION_PSERIES(0x4600, 0x600, alignment)
+ STD_RELON_EXCEPTION_PSERIES(0x4700, 0x700, program_check)
+ STD_RELON_EXCEPTION_PSERIES(0x4800, 0x800, fp_unavailable)
+ MASKABLE_RELON_EXCEPTION_PSERIES(0x4900, 0x900, decrementer)
+ STD_RELON_EXCEPTION_HV(0x4980, 0x982, hdecrementer)
+ STD_RELON_EXCEPTION_PSERIES(0x4b00, 0xb00, trap_0b)
+
+ . = 0x4c00
+ .globl system_call_relon_pSeries
+system_call_relon_pSeries:
+ HMT_MEDIUM
+ SYSCALL_PSERIES_1
+ SYSCALL_PSERIES_2_DIRECT
+ SYSCALL_PSERIES_3
+
+ STD_RELON_EXCEPTION_PSERIES(0x4d00, 0xd00, single_step)
+
+ . = 0x4e00
+ b h_data_storage_relon_hv
+
+ . = 0x4e20
+ b h_instr_storage_relon_hv
+
+ . = 0x4e40
+ b emulation_assist_relon_hv
+
+ . = 0x4e50
+ b hmi_exception_relon_hv
+
+ . = 0x4e60
+ b hmi_exception_relon_hv
+
+ /* For when we support the doorbell interrupt:
+ STD_RELON_EXCEPTION_HYPERVISOR(0x4e80, 0xe80, doorbell_hyper)
+ */
+
+performance_monitor_relon_pSeries_1:
+ . = 0x4f00
+ b performance_monitor_relon_pSeries
+
+altivec_unavailable_relon_pSeries_1:
+ . = 0x4f20
+ b altivec_unavailable_relon_pSeries
+
+vsx_unavailable_relon_pSeries_1:
+ . = 0x4f40
+ b vsx_unavailable_relon_pSeries
+
+#ifdef CONFIG_CBE_RAS
+ STD_RELON_EXCEPTION_HV(0x5200, 0x1202, cbe_system_error)
+#endif /* CONFIG_CBE_RAS */
+ STD_RELON_EXCEPTION_PSERIES(0x5300, 0x1300, instruction_breakpoint)
+#ifdef CONFIG_PPC_DENORMALISATION
+ . = 0x5500
+ b denorm_exception_hv
+#endif
+#ifdef CONFIG_CBE_RAS
+ STD_RELON_EXCEPTION_HV(0x5600, 0x1602, cbe_maintenance)
+#else
+#ifdef CONFIG_HVC_SCOM
+ STD_RELON_EXCEPTION_HV(0x5600, 0x1600, maintence_interrupt)
+ KVM_HANDLER_SKIP(PACA_EXGEN, EXC_HV, 0x1600)
+#endif /* CONFIG_HVC_SCOM */
+#endif /* CONFIG_CBE_RAS */
+ STD_RELON_EXCEPTION_PSERIES(0x5700, 0x1700, altivec_assist)
+#ifdef CONFIG_CBE_RAS
+ STD_RELON_EXCEPTION_HV(0x5800, 0x1802, cbe_thermal)
+#endif /* CONFIG_CBE_RAS */
+
+ /* Other future vectors */
+ .align 7
+ .globl __end_interrupts
+__end_interrupts:
+
.align 7
+system_call_entry_direct:
+#if defined(CONFIG_RELOCATABLE)
+ /* The first level prologue may have used LR to get here, saving
+ * orig in r10. To save hacking/ifdeffing common code, restore here.
+ */
+ mtlr r10
+#endif
system_call_entry:
b system_call_common
rfid
b . /* prevent speculative execution */
+
+ /* Equivalents to the above handlers for relocation-on interrupt vectors */
+ STD_RELON_EXCEPTION_HV(., 0xe00, h_data_storage)
+ KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe00)
+ STD_RELON_EXCEPTION_HV(., 0xe20, h_instr_storage)
+ KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe20)
+ STD_RELON_EXCEPTION_HV(., 0xe40, emulation_assist)
+ KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe40)
+ STD_RELON_EXCEPTION_HV(., 0xe60, hmi_exception)
+ KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe60)
+
+ STD_RELON_EXCEPTION_PSERIES(., 0xf00, performance_monitor)
+ STD_RELON_EXCEPTION_PSERIES(., 0xf20, altivec_unavailable)
+ STD_RELON_EXCEPTION_PSERIES(., 0xf40, vsx_unavailable)
+
#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
/*
* Data area reserved for FWNMI option.
git.openpandora.org / pandora-kernel.git / commitdiff