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qemu-patch-raspberry4/target/ppc
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Suraj Jitindar Singh 31b2b0f846 target/ppc: Flush TLB on write to PIDR 
The PIDR (process id register) is used to store the id of the currently
running process, which is used to select the process table entry used to
perform address translation. This means that when we write to this register
all the translations in the TLB become outdated as they are for a
previously running process. Thus when this register is written to we need
to invalidate the TLB entries to ensure stale entries aren't used to
to perform translation for the new process, which would result in at best
segfaults or alternatively just random memory being accessed.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[dwg: Fixed compile error for 32-bit targets]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-04-26 12:41:56 +10:00
..
translate target-ppc: Add xscvqpudz and xscvqpuwz instructions 2017-02-22 11:28:28 +11:00
arch_dump.c target/ppc: Fix size of struct PPCElfPrstatus 2017-04-26 12:41:55 +10:00
compat.c target/ppc: Add POWER9/ISAv3.00 to compat_table 2017-03-03 11:30:59 +11:00
cpu-models.c target/ppc/cpu-models: Fix/remove bad CPU aliases 2017-01-31 13:46:26 +11:00
cpu-models.h powerpc/cpu-models: rename ISAv3.00 logical PVR definition 2017-01-31 10:10:14 +11:00
cpu-qom.h spapr: Add ibm,processor-radix-AP-encodings to the device tree 2017-04-26 12:00:41 +10:00
cpu.c target/ppc: support for 32-bit carry and overflow 2017-03-01 11:23:39 +11:00
cpu.h ppc/xics: introduce an 'intc' backlink under PowerPCCPU 2017-04-26 12:00:42 +10:00
dfp_helper.c Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
excp_helper.c ppc: Clean up and QOMify hypercall emulation 2017-01-31 10:10:13 +11:00
fpu_helper.c target/ppc: use helper for excp handling 2017-03-06 13:17:28 +11:00
gdbstub.c Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
helper.h target/ppc: Flush TLB on write to PIDR 2017-04-26 12:41:56 +10:00
helper_regs.h cputlb: drop flush_global flag from tlb_flush 2017-01-13 14:24:37 +00:00
int_helper.c target/ppc: introduce helper_update_ov_legacy 2017-03-01 11:23:39 +11:00
internal.h target-ppc: implement load atomic instruction 2017-02-22 11:28:27 +11:00
kvm-stub.c Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
kvm.c target-ppc/kvm: Enable in-kernel TCE acceleration for multi-tce 2017-04-26 12:00:41 +10:00
kvm_ppc.h target-ppc/kvm: Enable in-kernel TCE acceleration for multi-tce 2017-04-26 12:00:41 +10:00
machine.c target/ppc: Manage external HPT via virtual hypervisor 2017-03-01 11:23:39 +11:00
Makefile.objs target/ppc/POWER9: Add POWER9 mmu fault handler 2017-03-03 11:30:59 +11:00
mem_helper.c target-ppc: implement stxvll instructions 2017-01-31 10:10:13 +11:00
mfrom_table.c Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
mfrom_table_gen.c Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
misc_helper.c target/ppc: Flush TLB on write to PIDR 2017-04-26 12:41:56 +10:00
mmu-book3s-v3.c target/ppc/POWER9: Add POWER9 mmu fault handler 2017-03-03 11:30:59 +11:00
mmu-book3s-v3.h target/ppc/POWER9: Add POWER9 mmu fault handler 2017-03-03 11:30:59 +11:00
mmu-hash32.c target/ppc: Eliminate htab_base and htab_mask variables 2017-03-01 11:23:39 +11:00
mmu-hash32.h target/ppc: Manage external HPT via virtual hypervisor 2017-03-01 11:23:39 +11:00
mmu-hash64.c spapr: Small cleanup of PPC MMU enums 2017-03-03 11:30:59 +11:00
mmu-hash64.h target/ppc: Correct SDR1 masking 2017-03-01 11:23:39 +11:00
mmu_helper.c spapr: Small cleanup of PPC MMU enums 2017-03-03 11:30:59 +11:00
monitor.c monitor: Fix crashes when using HMP commands without CPU 2017-02-21 18:29:01 +00:00
STATUS Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
timebase_helper.c Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
trace-events Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
translate.c target/ppc: fix cpu_ov setting for 32-bit 2017-03-14 11:27:23 +11:00
translate_init.c target/ppc: Flush TLB on write to PIDR 2017-04-26 12:41:56 +10:00
user_only_helper.c Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00