From: Nico Boehr <nrb@linux.ibm.com>
To: frankja@linux.ibm.com, imbrenda@linux.ibm.com, thuth@redhat.com,
nsg@linux.ibm.com
Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org
Subject: [kvm-unit-tests PATCH v1] s390x: spec_ex: load full register
Date: Fri, 11 Aug 2023 13:29:36 +0200 [thread overview]
Message-ID: <20230811112949.888903-1-nrb@linux.ibm.com> (raw)
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.
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 e3dd85dcb153..72b942576369 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
next reply other threads:[~2023-08-11 11:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-11 11:29 Nico Boehr [this message]
2023-08-11 12:02 ` [kvm-unit-tests PATCH v1] s390x: spec_ex: load full register Claudio Imbrenda
2023-08-14 10:23 ` Thomas Huth
2023-08-22 7:26 ` Janosch Frank
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