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Fri, 3 Jan 2020 07:40:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1578037233; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=if9IiSlR/AC0MKdJ6CQ9c4qOPjDZLnU89CEKkAoy8sM=; b=AMSkUvW032/jvQ1mgN0gx5vFQUrDj44on4DZsTEIH8KgjfRSartk5WUKv9egWHSiVt1qR1 FLTgh5/n2waNGsMS+VPtvODxW0uikn9x9uihhVR/okEThiRlOxqjybjeGNY1uq+3Y1622m pNQ/i8lbypLXA9CYj7Y7KDGsGMzGPb8= From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Subject: [PATCH v2 1/3] misc: use QEMU_IS_ALIGNED Date: Fri, 3 Jan 2020 11:39:58 +0400 Message-Id: <20200103074000.1006389-2-marcandre.lureau@redhat.com> In-Reply-To: <20200103074000.1006389-1-marcandre.lureau@redhat.com> References: <20200103074000.1006389-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-MC-Unique: qe_g83uIPHqIQewnwiDtnQ-1 X-Mimecast-Spam-Score: 0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.81 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: Juan Quintela , "Dr. David Alan Gilbert" , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , Stefan Berger , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Marc-Andr=C3=A9 Lureau Acked-by: Paolo Bonzini Reviewed-by: Juan Quintela Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Stefan Berger --- exec.c | 4 ++-- roms/SLOF | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/exec.c b/exec.c index d4b769d0d4..1feda49ca1 100644 --- a/exec.c +++ b/exec.c @@ -3895,7 +3895,7 @@ int ram_block_discard_range(RAMBlock *rb, uint64_t st= art, size_t length) =20 uint8_t *host_startaddr =3D rb->host + start; =20 - if ((uintptr_t)host_startaddr & (rb->page_size - 1)) { + if (!QEMU_PTR_IS_ALIGNED(host_startaddr, rb->page_size)) { error_report("ram_block_discard_range: Unaligned start address: %p= ", host_startaddr); goto err; @@ -3903,7 +3903,7 @@ int ram_block_discard_range(RAMBlock *rb, uint64_t st= art, size_t length) =20 if ((start + length) <=3D rb->used_length) { bool need_madvise, need_fallocate; - if (length & (rb->page_size - 1)) { + if (!QEMU_IS_ALIGNED(length, rb->page_size)) { error_report("ram_block_discard_range: Unaligned length: %zx", length); goto err; diff --git a/roms/SLOF b/roms/SLOF index 9546892a80..8ebf2f55e1 160000 --- a/roms/SLOF +++ b/roms/SLOF @@ -1 +1 @@ -Subproject commit 9546892a80d5a4c73deea6719de46372f007f4a6 +Subproject commit 8ebf2f55e1ba1492b942ba4b682160e644fc0f98 --=20 2.24.0.308.g228f53135a From nobody Mon Feb 9 15:55:52 2026 Delivered-To: importer@patchew.org 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; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1578037318; cv=none; d=zohomail.com; s=zohoarc; b=ECnft56rFOHlYw+DbNUB7AhBafTQ+5ahxhyOGKrB5TcasQbuv6+OBPg8nMZL46J1MeOkd56q8kG1PUrZbRutLqa8CFAqN7NGLta9u+minZ9HM6cikAXJItc2jAYva/4rdvSjBzFONiuCVjNln+VWuEmB+umYJl7rfKqGQNN5Avs= ARC-Message-Signature: i=1; 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charset="utf-8" post-copy migration fails on destination with error such as: 2019-12-26T10:22:44.714644Z qemu-kvm: ram_block_discard_range: Unaligned start address: 0x559d2afae9a0 Use qemu_memalign() to constrain the PPI RAM memory alignment. Cc: qemu-stable@nongnu.org Signed-off-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Dr. David Alan Gilbert Reviewed-by: Stefan Berger --- hw/tpm/tpm_ppi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/tpm/tpm_ppi.c b/hw/tpm/tpm_ppi.c index ff314592b4..6d9c1a3e40 100644 --- a/hw/tpm/tpm_ppi.c +++ b/hw/tpm/tpm_ppi.c @@ -43,7 +43,8 @@ void tpm_ppi_reset(TPMPPI *tpmppi) void tpm_ppi_init(TPMPPI *tpmppi, struct MemoryRegion *m, hwaddr addr, Object *obj) { - tpmppi->buf =3D g_malloc0(HOST_PAGE_ALIGN(TPM_PPI_ADDR_SIZE)); + tpmppi->buf =3D qemu_memalign(qemu_real_host_page_size, + HOST_PAGE_ALIGN(TPM_PPI_ADDR_SIZE)); memory_region_init_ram_device_ptr(&tpmppi->ram, obj, "tpm-ppi", TPM_PPI_ADDR_SIZE, tpmppi->buf); vmstate_register_ram(&tpmppi->ram, DEVICE(obj)); --=20 2.24.0.308.g228f53135a From nobody Mon Feb 9 15:55:52 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" Check the host pointer is correctly aligned, otherwise we may fail during migration in ram_block_discard_range(). Signed-off-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Juan Quintela Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- migration/savevm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/migration/savevm.c b/migration/savevm.c index a71b930b91..bbb7e89682 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2910,6 +2910,11 @@ err_drain: =20 void vmstate_register_ram(MemoryRegion *mr, DeviceState *dev) { + RAMBlock *rb =3D mr->ram_block; + + assert(QEMU_PTR_IS_ALIGNED(qemu_ram_get_host_addr(rb), + qemu_ram_pagesize(rb))); + qemu_ram_set_idstr(mr->ram_block, memory_region_name(mr), dev); qemu_ram_set_migratable(mr->ram_block); --=20 2.24.0.308.g228f53135a