qemu/target/ppc
Nicholas Piggin f9e3e1a35e target/ppc: Fix slbia TLB invalidation gap
slbia must invalidate TLBs even if it does not remove a valid SLB
entry, because slbmte can overwrite valid entries without removing
their TLBs.

As the architecture says, slbia invalidates all lookaside information,
not conditionally based on if it removed valid entries.

It does not seem possible for POWER8 or earlier Linux kernels to hit
this bug because it never changes its kernel SLB translations, and it
should always have valid entries if any accesses are made to userspace
regions. However other operating systems which may modify SLB entry 0
or do more fancy things with segments might be affected.

When POWER9 slbia support is added in the next patch, this becomes a
real problem because some new slbia variants don't invalidate all
non-zero entries.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20200318044135.851716-1-npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-03-24 11:05:37 +11:00
..
translate target/ppc: Fix typo in comments 2020-02-21 09:15:04 +11:00
arch_dump.c target/ppc: Add helper_mfvscr 2019-02-18 11:00:44 +11:00
compat.c target/ppc: Add POWER10 DD1.0 model information 2019-12-17 10:39:48 +11:00
cpu-models.c target/ppc: Add POWER10 DD1.0 model information 2019-12-17 10:39:48 +11:00
cpu-models.h target/ppc: Add POWER10 DD1.0 model information 2019-12-17 10:39:48 +11:00
cpu-param.h tcg: Split out target/arch/cpu-param.h 2019-06-10 07:03:34 -07:00
cpu-qom.h x86 and machine queue for 5.0 soft freeze 2020-03-19 14:22:46 +00:00
cpu.c target/ppc: support for 32-bit carry and overflow 2017-03-01 11:23:39 +11:00
cpu.h Testing and gdbstub updates: 2020-03-18 20:25:23 +00:00
dfp_helper.c target/ppc: remove unnecessary if() around calls to set_dfp{64,128}() in DFP macros 2019-10-04 19:08:21 +10:00
excp_helper.c target/ppc: allow ppc_cpu_do_system_reset to take an alternate vector 2020-03-17 17:00:22 +11:00
fpu_helper.c target/ppc: Fix typo in comments 2020-02-21 09:15:04 +11:00
gdbstub.c gdbstub: extend GByteArray to read register helpers 2020-03-17 17:38:38 +00:00
helper_regs.h ppc: Ignore the CPU_INTERRUPT_EXITTB interrupt with KVM 2019-12-17 10:39:48 +11:00
helper.h target/ppc: Add privileged message send facilities 2020-02-02 14:07:57 +11:00
int_helper.c target/ppc: use Vsr macros in BCD helpers 2019-10-04 19:08:21 +10:00
internal.h ppc: Add support for 'mffscrn','mffscrni' instructions 2019-10-04 10:25:23 +10:00
kvm_ppc.h spapr,ppc: Simplify signature of kvmppc_rma_size() 2020-03-17 09:41:15 +11:00
kvm-stub.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
kvm.c spapr,ppc: Simplify signature of kvmppc_rma_size() 2020-03-17 09:41:15 +11:00
machine.c Include hw/boards.h a bit less 2019-08-16 13:31:53 +02:00
Makefile.objs build: remove CONFIG_LIBDECNUMBER 2017-10-16 18:03:52 +02:00
mem_helper.c target/ppc: Use probe_write for DCBZ 2020-02-03 11:33:11 +11:00
mfrom_table_gen.c target/ppc: Style fixes for mfrom_table.inc.c & mfrom_table_gen.c 2019-04-26 10:42:38 +10:00
mfrom_table.inc.c target/ppc: Style fixes for mfrom_table.inc.c & mfrom_table_gen.c 2019-04-26 10:42:38 +10:00
misc_helper.c target/ppc: add support for Hypervisor Facility Unavailable Exception 2020-02-02 14:07:57 +11:00
mmu_helper.c target/ppc: Rewrite a fall through comment 2019-08-21 10:57:28 +02:00
mmu-book3s-v3.c target/ppc: Support for POWER9 native hash 2019-02-26 09:21:25 +11:00
mmu-book3s-v3.h Clean up header guards that don't match their file name 2019-05-13 08:58:55 +02:00
mmu-hash32.c ppc/hash32: Rework R and C bit updates 2019-04-26 11:37:57 +10:00
mmu-hash32.h target/ppc: Manage external HPT via virtual hypervisor 2017-03-01 11:23:39 +11:00
mmu-hash64.c target/ppc: Fix slbia TLB invalidation gap 2020-03-24 11:05:37 +11:00
mmu-hash64.h ppc/hash64: Rework R and C bit updates 2019-04-26 11:37:57 +10:00
mmu-radix64.c ppc/pnv: Add support for HRMOR on Radix host 2020-02-02 14:07:57 +11:00
mmu-radix64.h target/ppc: Rename PATB/PATBE -> PATE 2019-02-26 09:21:25 +11:00
monitor.c hmp: Move hmp.h to include/monitor/ 2019-07-02 07:19:45 +02:00
timebase_helper.c target/ppc: Add SPR TBU40 2019-12-17 10:39:48 +11:00
trace-events target/ppc: Handle NMI guest exit 2020-02-03 11:33:10 +11:00
translate_init.inc.c x86 and machine queue for 5.0 soft freeze 2020-03-19 14:22:46 +00:00
translate.c target/ppc: Fix rlwinm on ppc64 2020-03-17 15:08:50 +11:00
user_only_helper.c target/ppc: Convert to CPUClass::tlb_fill 2019-05-10 11:12:50 -07:00