[kvm-unit-tests GIT PULL 01/26] s390x: spec_ex: load full register

Nico Boehr
2023-11-10T13:54:21Z

There may be contents left in the upper 32 bits of executed_addr; hence
we should use a 64-bit load to make sure they are overwritten.

Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/r/20230811112949.888903-1-nrb@linux.ibm.com
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
---
s390x/spec_ex.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/s390x/spec_ex.c b/s390x/spec_ex.c
index e3dd85d..72b9425 100644
--- a/s390x/spec_ex.c
+++ b/s390x/spec_ex.c
@@ -142,7 +142,7 @@ static int psw_odd_address(void)
" larl %%r1,0f\n"
" stg %%r1,%[fixup_addr]\n"
" lpswe %[odd_psw]\n"
- "0: lr %[executed_addr],%%r0\n"
+ "0: lgr %[executed_addr],%%r0\n"
: [fixup_addr] "=&T" (fixup_psw.addr),
[executed_addr] "=d" (executed_addr)
: [odd_psw] "Q" (odd)
--
2.41.0