Greg Kurz 3e5365b7aa target/ppc: Fix QEMU crash with stxsdx ... I've been hitting several QEMU crashes while running a fedora29 ppc64le guest under TCG. Each time, this would occur several minutes after the guest reached login: Fedora 29 (Twenty Nine) Kernel 4.20.6-200.fc29.ppc64le on an ppc64le (hvc0) Web console: https://localhost:9090/ localhost login: tcg/tcg.c:3211: tcg fatal error This happens because a bug crept up in the gen_stxsdx() helper when it was converted to use VSR register accessors by commit 8b3b2d75c7 "target/ppc: introduce get_cpu_vsr{l,h}() and set_cpu_vsr{l,h}() helpers for VSR register access". The code creates a temporary, passes it directly to gen_qemu_st64_i64() and then to set_cpu_vrsh()... which looks like this was mistakenly coded as a load instead of a store. Reverse the logic: read the VSR to the temporary first and then store it to memory. Fixes: 8b3b2d75c7 Signed-off-by: Greg Kurz <groug@kaod.org> Message-Id: <155371035249.2038502.12364252604337688538.stgit@bahia.lan> Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>		2019-03-29 10:22:22 +11:00
..
dfp-impl.inc.c	target/ppc: move FP and VMX registers into aligned vsr register array	2019-01-09 09:28:14 +11:00
dfp-ops.inc.c
fp-impl.inc.c	target/ppc: introduce get_fpr() and set_fpr() helpers for FP register access	2019-01-09 09:28:13 +11:00
fp-ops.inc.c	target/ppc: add external PID support	2018-11-08 12:04:40 +11:00
spe-impl.inc.c
spe-ops.inc.c
vmx-impl.inc.c	target/ppc: improve avr64_offset() and use it to simplify get_avr64()/set_avr64()	2019-03-12 14:33:04 +11:00
vmx-ops.inc.c	Changes requirement for "vsubsbs" instruction	2018-12-21 09:29:12 +11:00
vsx-impl.inc.c	target/ppc: Fix QEMU crash with stxsdx	2019-03-29 10:22:22 +11:00
vsx-ops.inc.c	target-ppc: Add xscvqpudz and xscvqpuwz instructions	2017-02-22 11:28:28 +11:00