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From: David Hildenbrand <david@redhat.com>
To: qemu-devel@nongnu.org
Cc: Florian Weimer <fweimer@redhat.com>,
	Thomas Huth <thuth@redhat.com>,
	David Hildenbrand <david@redhat.com>,
	Cornelia Huck <cohuck@redhat.com>,
	Stefano Brivio <sbrivio@redhat.com>,
	qemu-s390x@nongnu.org, Richard Henderson <rth@twiddle.net>
Subject: [Qemu-devel] [PATCH v2 19/28] s390x/tcg: MVCLU: Fault-safe handling
Date: Fri,  6 Sep 2019 09:57:41 +0200
Message-ID: <20190906075750.14791-20-david@redhat.com> (raw)
In-Reply-To: <20190906075750.14791-1-david@redhat.com>

The last remaining bit is padding with two bytes.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 target/s390x/mem_helper.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c
index f636f3a011..0366cbc753 100644
--- a/target/s390x/mem_helper.c
+++ b/target/s390x/mem_helper.c
@@ -900,15 +900,17 @@ static inline uint32_t do_mvcl(CPUS390XState *env,
         access_memset(env, *dest, pad, len, ra);
         *dest = wrap_address(env, *dest + len);
     } else {
+        S390Access desta = access_prepare(env, *dest, len, MMU_DATA_STORE, ra);
+
         /* The remaining length selects the padding byte. */
         for (i = 0; i < len; (*destlen)--, i++) {
             if (*destlen & 1) {
-                cpu_stb_data_ra(env, *dest, pad, ra);
+                access_set_byte(env, &desta, i, pad, ra);
             } else {
-                cpu_stb_data_ra(env, *dest, pad >> 8, ra);
+                access_set_byte(env, &desta, i, pad >> 8, ra);
             }
-            *dest = wrap_address(env, *dest + 1);
         }
+        *dest = wrap_address(env, *dest + len);
     }
 
     return *destlen ? 3 : cc;
-- 
2.21.0



  parent reply index

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-06  7:57 [Qemu-devel] [PATCH v2 00/28] s390x/tcg: mem_helper: " David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 01/28] s390x/tcg: Reset exception_index to -1 instead of 0 David Hildenbrand
2019-09-11 14:38   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 02/28] s390x/tcg: MVCL: Zero out unused bits of address David Hildenbrand
2019-09-11 14:40   ` Richard Henderson
2019-09-11 16:10     ` David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 03/28] s390x/tcg: MVCL: Detect destructive overlaps David Hildenbrand
2019-09-11 14:42   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 04/28] s390x/tcg: MVCL: Process max 2k bytes at a time David Hildenbrand
2019-09-11 14:52   ` Richard Henderson
2019-09-11 15:07     ` Richard Henderson
2019-09-11 16:12       ` David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 05/28] s390x/tcg: MVC: Increment the length once David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 06/28] s390x/tcg: MVC: Use is_destructive_overlap() David Hildenbrand
2019-09-11 14:54   ` Richard Henderson
2019-09-11 16:13     ` David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 07/28] s390x/tcg: MVPG: Check for specification exceptions David Hildenbrand
2019-09-11 14:57   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 08/28] s390x/tcg: MVPG: Properly wrap the addresses David Hildenbrand
2019-09-11 14:58   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 09/28] s390x/tcg: MVCLU/MVCLE: Process max 4k bytes at a time David Hildenbrand
2019-09-11 15:05   ` Richard Henderson
2019-09-11 16:14     ` David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 10/28] s390x/tcg: MVCS/MVCP: Check for special operation exceptions David Hildenbrand
2019-09-11 15:08   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 11/28] s390x/tcg: MVCS/MVCP: Properly wrap the length David Hildenbrand
2019-09-11 15:11   ` Richard Henderson
2019-09-11 16:15     ` David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 12/28] s390x/tcg: MVST: Check for specification exceptions David Hildenbrand
2019-09-11 15:14   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 13/28] s390x/tcg: MVST: Fix storing back the addresses to registers David Hildenbrand
2019-09-11 15:18   ` Richard Henderson
2019-09-11 16:15     ` David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 14/28] s390x/tcg: Always use MMU_USER_IDX for CONFIG_USER_ONLY David Hildenbrand
2019-09-11 15:19   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 15/28] s390x/tcg: Fault-safe memset David Hildenbrand
2019-09-11 15:29   ` Richard Henderson
2019-09-11 16:18     ` David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 16/28] s390x/tcg: Fault-safe memmove David Hildenbrand
2019-09-11 21:11   ` Richard Henderson
2019-09-11 22:03   ` Richard Henderson
2019-09-13 12:37     ` David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 17/28] s390x/tcg: MVCS/MVCP: Use access_memmove_idx() David Hildenbrand
2019-09-11 21:13   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 18/28] s390x/tcg: MVC: Fault-safe handling on destructive overlaps David Hildenbrand
2019-09-11 21:20   ` Richard Henderson
2019-09-06  7:57 ` David Hildenbrand [this message]
2019-09-11 21:24   ` [Qemu-devel] [PATCH v2 19/28] s390x/tcg: MVCLU: Fault-safe handling Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 20/28] s390x/tcg: OC: " David Hildenbrand
2019-09-11 21:26   ` Richard Henderson
2019-09-16 12:01     ` David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 21/28] s390x/tcg: XC: " David Hildenbrand
2019-09-11 21:29   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 22/28] s390x/tcg: NC: " David Hildenbrand
2019-09-11 21:32   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 23/28] s390x/tcg: MVCIN: " David Hildenbrand
2019-09-11 21:35   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 24/28] s390x/tcg: MVN: " David Hildenbrand
2019-09-11 21:37   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 25/28] s390x/tcg: MVZ: " David Hildenbrand
2019-09-11 21:38   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 26/28] s390x/tcg: MVST: " David Hildenbrand
2019-09-11 21:52   ` Richard Henderson
2019-09-16 10:39     ` David Hildenbrand
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 27/28] s390x/tcg: MVO: " David Hildenbrand
2019-09-11 22:09   ` Richard Henderson
2019-09-06  7:57 ` [Qemu-devel] [PATCH v2 28/28] tests/tcg: target/s390x: Test MVO David Hildenbrand
2019-09-11 11:11 ` [Qemu-devel] [qemu-s390x] [PATCH v2 00/28] s390x/tcg: mem_helper: Fault-safe handling David Hildenbrand

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