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bh=LQ6XpvHQNUKBfbm9nqsdH5xFWwXs/utW2YgFeagOHxo=; b=K7/bsXzhJi0fn/juvEvRUKOGOXIZ8/INZ0O9lJj9RJVXXNGsJRTgS02gl6lEW/DKDD0dxs +k8qsswoSyNrcP1S1A5hJLrcLmToePYRPn22lc6aUDom0NhEHAeVCqdvUDvBmBgAf9+UJy S92KYgGQsfs9wu5rCQtWPOIhCSnnrsM= X-MC-Unique: k4HFnt0RMPKFBO6xOe-yvQ-1 From: Alberto Faria To: qemu-devel@nongnu.org Cc: David Hildenbrand , Peter Xu , Paolo Bonzini , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Alberto Faria , Stefan Hajnoczi Subject: [PATCH] softmmu/physmem: Fix address of FlatView access in address_space_(read|write)_cached_slow() Date: Fri, 26 Aug 2022 17:09:27 +0100 Message-Id: <20220826160927.322797-1-afaria@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=afaria@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1661530880442100001 Content-Type: text/plain; charset="utf-8" Apply cache->xlat to addr before passing it to flatview_(read|write)_continue(), to convert it from the MemoryRegionCache's address space to the FlatView's. Fixes: 48564041a7 ("exec: reintroduce MemoryRegion caching") Co-Developed-by: Stefan Hajnoczi Signed-off-by: Stefan Hajnoczi Signed-off-by: Alberto Faria --- softmmu/physmem.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/softmmu/physmem.c b/softmmu/physmem.c index dc3c3e5f2e..95d4c77cc3 100644 --- a/softmmu/physmem.c +++ b/softmmu/physmem.c @@ -3450,9 +3450,9 @@ address_space_read_cached_slow(MemoryRegionCache *cac= he, hwaddr addr, l =3D len; mr =3D address_space_translate_cached(cache, addr, &addr1, &l, false, MEMTXATTRS_UNSPECIFIED); - return flatview_read_continue(cache->fv, - addr, MEMTXATTRS_UNSPECIFIED, buf, len, - addr1, l, mr); + return flatview_read_continue(cache->fv, cache->xlat + addr, + MEMTXATTRS_UNSPECIFIED, buf, len, addr1,= l, + mr); } =20 /* Called from RCU critical section. address_space_write_cached uses this @@ -3468,9 +3468,9 @@ address_space_write_cached_slow(MemoryRegionCache *ca= che, hwaddr addr, l =3D len; mr =3D address_space_translate_cached(cache, addr, &addr1, &l, true, MEMTXATTRS_UNSPECIFIED); - return flatview_write_continue(cache->fv, - addr, MEMTXATTRS_UNSPECIFIED, buf, len, - addr1, l, mr); + return flatview_write_continue(cache->fv, cache->xlat + addr, + MEMTXATTRS_UNSPECIFIED, buf, len, addr1= , l, + mr); } =20 #define ARG1_DECL MemoryRegionCache *cache --=20 2.37.2