qemu/target/s390x/tcg
David Hildenbrand c35622387e hw/s390x/s390-skeys: lazy storage key enablement under TCG
Let's enable storage keys lazily under TCG, just as we do under KVM.
Only fairly old Linux versions actually make use of storage keys, so it
can be kind of wasteful to allocate quite some memory and track
changes and references if nobody cares.

We have to make sure to flush the TLB when enabling storage keys after
the VM was already running: otherwise it might happen that we don't
catch references or modifications afterwards.

Add proper documentation to all callbacks.

The kvm-unit-tests skey tests keeps on working with this change.

Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210903155514.44772-14-david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-09-06 16:24:05 +02:00
..
cc_helper.c
crypto_helper.c
excp_helper.c s390x/mmu_helper: move address validation into mmu_translate*() 2021-09-06 16:24:05 +02:00
fpu_helper.c
insn-data.def
insn-format.def
int_helper.c
mem_helper.c hw/s390x/s390-skeys: lazy storage key enablement under TCG 2021-09-06 16:24:05 +02:00
meson.build
misc_helper.c s390x/tcg: fix and optimize SPX (SET PREFIX) 2021-09-06 16:23:16 +02:00
s390-tod.h
tcg_s390x.h
translate_vx.c.inc
translate.c accel/tcg: Remove TranslatorOps.breakpoint_check 2021-07-21 07:47:05 -10:00
vec_fpu_helper.c
vec_helper.c
vec_int_helper.c
vec_string_helper.c
vec.h