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bh=I1GegRRsYAOEmXogjdvduSgztiri02UqI880GVRk4zo=; b=VJYkhOHVWuT9lhj4427EAtObrAaXt+AyWhghw9qRVhizQKnwyKWbh5nYwgNxewSp6vsg81 w8jjFh8uytVshKEVhlNLHHn4kvmFiePrSPjFRFZPrGMHPKqpbdJJa6unaw0KbAhQpw8bYN KtfHrJQ1kh/OSQkm341zYkJ/9HdMGcQ= X-MC-Unique: StGjyNspPYW3UH82bEo_fQ-1 From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v1 4/5] softmmu/memory_mapping: factor out adding physical memory ranges Date: Wed, 10 Feb 2021 18:15:36 +0100 Message-Id: <20210210171537.32932-5-david@redhat.com> In-Reply-To: <20210210171537.32932-1-david@redhat.com> References: <20210210171537.32932-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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=216.205.24.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.568, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Thomas Huth , "Michael S. Tsirkin" , David Hildenbrand , "Dr . David Alan Gilbert" , Peter Xu , Alex Williamson , Claudio Fontana , Paolo Bonzini , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Igor Mammedov Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Let's factor out adding an item to the list, to be reused in RamDiscardMgr context next. Cc: Marc-Andr=C3=A9 Lureau Cc: Paolo Bonzini Cc: "Michael S. Tsirkin" Cc: Alex Williamson Cc: Dr. David Alan Gilbert Cc: Igor Mammedov Cc: Claudio Fontana Cc: Thomas Huth Cc: "Alex Benn=C3=A9e" Cc: Peter Xu Cc: Laurent Vivier Signed-off-by: David Hildenbrand --- softmmu/memory_mapping.c | 64 +++++++++++++++++++++------------------- 1 file changed, 34 insertions(+), 30 deletions(-) diff --git a/softmmu/memory_mapping.c b/softmmu/memory_mapping.c index ad4911427a..05e8270edc 100644 --- a/softmmu/memory_mapping.c +++ b/softmmu/memory_mapping.c @@ -194,35 +194,17 @@ typedef struct GuestPhysListener { MemoryListener listener; } GuestPhysListener; =20 -static void guest_phys_blocks_region_add(MemoryListener *listener, - MemoryRegionSection *section) +static void guest_phys_block_add(GuestPhysBlockList *list, MemoryRegion *m= r, + hwaddr target_start, hwaddr target_end, + uint8_t *host_addr) { - GuestPhysListener *g; - uint64_t section_size; - hwaddr target_start, target_end; - uint8_t *host_addr; - GuestPhysBlock *predecessor; - - /* we only care about RAM */ - if (!memory_region_is_ram(section->mr) || - memory_region_is_ram_device(section->mr) || - memory_region_is_nonvolatile(section->mr)) { - return; - } - - g =3D container_of(listener, GuestPhysListener, listener); - section_size =3D int128_get64(section->size); - target_start =3D section->offset_within_address_space; - target_end =3D target_start + section_size; - host_addr =3D memory_region_get_ram_ptr(section->mr) + - section->offset_within_region; - predecessor =3D NULL; + GuestPhysBlock *predecessor =3D NULL; =20 /* find continuity in guest physical address space */ - if (!QTAILQ_EMPTY(&g->list->head)) { + if (!QTAILQ_EMPTY(&list->head)) { hwaddr predecessor_size; =20 - predecessor =3D QTAILQ_LAST(&g->list->head); + predecessor =3D QTAILQ_LAST(&list->head); predecessor_size =3D predecessor->target_end - predecessor->target= _start; =20 /* the memory API guarantees monotonically increasing traversal */ @@ -231,7 +213,7 @@ static void guest_phys_blocks_region_add(MemoryListener= *listener, /* we want continuity in both guest-physical and host-virtual memo= ry */ if (predecessor->target_end < target_start || predecessor->host_addr + predecessor_size !=3D host_addr || - predecessor->mr !=3D section->mr) { + predecessor->mr !=3D mr) { predecessor =3D NULL; } } @@ -243,11 +225,11 @@ static void guest_phys_blocks_region_add(MemoryListen= er *listener, block->target_start =3D target_start; block->target_end =3D target_end; block->host_addr =3D host_addr; - block->mr =3D section->mr; - memory_region_ref(section->mr); + block->mr =3D mr; + memory_region_ref(mr); =20 - QTAILQ_INSERT_TAIL(&g->list->head, block, next); - ++g->list->num; + QTAILQ_INSERT_TAIL(&list->head, block, next); + ++list->num; } else { /* expand predecessor until @target_end; predecessor's start doesn= 't * change @@ -258,10 +240,32 @@ static void guest_phys_blocks_region_add(MemoryListen= er *listener, #ifdef DEBUG_GUEST_PHYS_REGION_ADD fprintf(stderr, "%s: target_start=3D" TARGET_FMT_plx " target_end=3D" TARGET_FMT_plx ": %s (count: %u)\n", __func__, target_start, - target_end, predecessor ? "joined" : "added", g->list->num); + target_end, predecessor ? "joined" : "added", list->num); #endif } =20 +static void guest_phys_blocks_region_add(MemoryListener *listener, + MemoryRegionSection *section) +{ + GuestPhysListener *g =3D container_of(listener, GuestPhysListener, lis= tener); + hwaddr target_start, target_end; + uint8_t *host_addr; + + /* we only care about RAM */ + if (!memory_region_is_ram(section->mr) || + memory_region_is_ram_device(section->mr) || + memory_region_is_nonvolatile(section->mr)) { + return; + } + + target_start =3D section->offset_within_address_space; + target_end =3D target_start + int128_get64(section->size); + host_addr =3D memory_region_get_ram_ptr(section->mr) + + section->offset_within_region; + guest_phys_block_add(g->list, section->mr, target_start, target_end, + host_addr); +} + void guest_phys_blocks_append(GuestPhysBlockList *list) { GuestPhysListener g =3D { 0 }; --=20 2.29.2