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[176.131.220.199]) by smtp.gmail.com with ESMTPSA id j19-20020a05600c191300b004090ca6d785sm11949457wmq.2.2023.11.06.03.09.04 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 06 Nov 2023 03:09:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1699268947; x=1699873747; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=csVQGgR+Tak3/eKK57JrtNqjD/O4/1GmajzGwSgP8l0=; b=DYMW4RZy27l8e4reUPVYHN/4PADcJ/tuebYjcEw0YBCjycdVYGZk2Ty+3iUk2yyPY7 kqmnvtshznWNT7JyuspG4jiW5V+kL0FL/WoB0xR8xM3AT6uCYxsOWPGArObqPA1+JHtX y3rD1Mb4QF/eZvRmaaxxE72B2nfOTTxog/Ge8zFOTbvBp88UPEKBnnGD+vbZIboVaECn XVNwNwOwLZsJT7ZEHyxrBm4mLHbo6LBB3K6kXJh9UEyINpyu42dAQMUX/YB9w4u/iTLn DBKJR8GXG8CeKq6OxUSMY7bWJgyCxbCcN7yuNF4eVwr9XATHS5q4LPAjC59UUGx5kjhq +PYg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699268947; x=1699873747; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=csVQGgR+Tak3/eKK57JrtNqjD/O4/1GmajzGwSgP8l0=; b=s3f5r37Ys8NpkehNdOMen0yu9JF5rv+lXoiJ3aVmAj1B/2Ck2wk5zT6bYJAysBzzvN K1N1btuvZWnpsXWt+3G78jfiK5io/k+hWqG51MUtOF+KVCLX2IThQYUGinIwIbtoP5WK mZX9cugx59ZDyLlk5TO4X1Q+MiyFxLQ/bhZlyPkPVYMGfA676V23OvXBwdixF2Q87fjn OtPUC0L/25Cu7RVsTH9Isiv8zQpoEXl8pjzHyprTzEGZxrCCawXonLSJO0DiOk0FUv/j +f49bcxjrAaOWOmduyaEJeUhHeG+6vIhmZbH8Vu5C8UnqmAuFHPCy4Gn/Bfx/RSFkCAx pJXA== X-Gm-Message-State: AOJu0YwJQGTo3zS82gf7DOTlPuq9tk7LlSAEeo1ud2+SEVO/Mj295H9G XFefoBmpJ9W1bpVlQJnkWs451mGGkbrBdvizLOw= X-Google-Smtp-Source: AGHT+IF/NpB8HMHP7H/FI9jfuMU1i8ZqGUSvagHUJCDZQ+ivvnwriIb7n7tIOJDMRsdh2YcofDQnWA== X-Received: by 2002:a05:6512:370b:b0:507:a6a5:a87b with SMTP id z11-20020a056512370b00b00507a6a5a87bmr20578908lfr.51.1699268946691; Mon, 06 Nov 2023 03:09:06 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: kvm@vger.kernel.org, qemu-s390x@nongnu.org, qemu-block@nongnu.org, qemu-riscv@nongnu.org, qemu-ppc@nongnu.org, qemu-arm@nongnu.org, Fiona Ebner , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , John Snow , Thomas Huth , Laurent Vivier , Paolo Bonzini Subject: [PULL 48/60] tests/qtest: ahci-test: add test exposing reset issue with pending callback Date: Mon, 6 Nov 2023 12:03:20 +0100 Message-ID: <20231106110336.358-49-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231106110336.358-1-philmd@linaro.org> References: <20231106110336.358-1-philmd@linaro.org> MIME-Version: 1.0 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=2a00:1450:4864:20::136; envelope-from=philmd@linaro.org; helo=mail-lf1-x136.google.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, 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=unavailable 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-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1699270398087100003 From: Fiona Ebner Before commit "hw/ide: reset: cancel async DMA operation before resetting state", this test would fail, because a reset with a pending write operation would lead to an unsolicited write to the first sector of the disk. The test writes a pattern to the beginning of the disk and verifies that it is still intact after a reset with a pending operation. It also checks that the pending operation actually completes correctly. Signed-off-by: Fiona Ebner Message-ID: <20230906130922.142845-2-f.ebner@proxmox.com> Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- tests/qtest/ahci-test.c | 86 ++++++++++++++++++++++++++++++++++++++++- 1 file changed, 85 insertions(+), 1 deletion(-) diff --git a/tests/qtest/ahci-test.c b/tests/qtest/ahci-test.c index eea8b5f77b..5a1923f721 100644 --- a/tests/qtest/ahci-test.c +++ b/tests/qtest/ahci-test.c @@ -1424,6 +1424,89 @@ static void test_reset(void) ahci_shutdown(ahci); } =20 +static void test_reset_pending_callback(void) +{ + AHCIQState *ahci; + AHCICommand *cmd; + uint8_t port; + uint64_t ptr1; + uint64_t ptr2; + + int bufsize =3D 4 * 1024; + int speed =3D bufsize + (bufsize / 2); + int offset1 =3D 0; + int offset2 =3D bufsize / AHCI_SECTOR_SIZE; + + g_autofree unsigned char *tx1 =3D g_malloc(bufsize); + g_autofree unsigned char *tx2 =3D g_malloc(bufsize); + g_autofree unsigned char *rx1 =3D g_malloc0(bufsize); + g_autofree unsigned char *rx2 =3D g_malloc0(bufsize); + + /* Uses throttling to make test independent of specific environment. */ + ahci =3D ahci_boot_and_enable("-drive if=3Dnone,id=3Ddrive0,file=3D%s," + "cache=3Dwriteback,format=3D%s," + "throttling.bps-write=3D%d " + "-M q35 " + "-device ide-hd,drive=3Ddrive0 ", + tmp_path, imgfmt, speed); + + port =3D ahci_port_select(ahci); + ahci_port_clear(ahci, port); + + ptr1 =3D ahci_alloc(ahci, bufsize); + ptr2 =3D ahci_alloc(ahci, bufsize); + + g_assert(ptr1 && ptr2); + + /* Need two different patterns. */ + do { + generate_pattern(tx1, bufsize, AHCI_SECTOR_SIZE); + generate_pattern(tx2, bufsize, AHCI_SECTOR_SIZE); + } while (memcmp(tx1, tx2, bufsize) =3D=3D 0); + + qtest_bufwrite(ahci->parent->qts, ptr1, tx1, bufsize); + qtest_bufwrite(ahci->parent->qts, ptr2, tx2, bufsize); + + /* Write to beginning of disk to check it wasn't overwritten later. */ + ahci_guest_io(ahci, port, CMD_WRITE_DMA_EXT, ptr1, bufsize, offset1); + + /* Issue asynchronously to get a pending callback during reset. */ + cmd =3D ahci_command_create(CMD_WRITE_DMA_EXT); + ahci_command_adjust(cmd, offset2, ptr2, bufsize, 0); + ahci_command_commit(ahci, cmd, port); + ahci_command_issue_async(ahci, cmd); + + ahci_set(ahci, AHCI_GHC, AHCI_GHC_HR); + + ahci_command_free(cmd); + + /* Wait for throttled write to finish. */ + sleep(1); + + /* Start again. */ + ahci_clean_mem(ahci); + ahci_pci_enable(ahci); + ahci_hba_enable(ahci); + port =3D ahci_port_select(ahci); + ahci_port_clear(ahci, port); + + /* Read and verify. */ + ahci_guest_io(ahci, port, CMD_READ_DMA_EXT, ptr1, bufsize, offset1); + qtest_bufread(ahci->parent->qts, ptr1, rx1, bufsize); + g_assert_cmphex(memcmp(tx1, rx1, bufsize), =3D=3D, 0); + + ahci_guest_io(ahci, port, CMD_READ_DMA_EXT, ptr2, bufsize, offset2); + qtest_bufread(ahci->parent->qts, ptr2, rx2, bufsize); + g_assert_cmphex(memcmp(tx2, rx2, bufsize), =3D=3D, 0); + + ahci_free(ahci, ptr1); + ahci_free(ahci, ptr2); + + ahci_clean_mem(ahci); + + ahci_shutdown(ahci); +} + static void test_ncq_simple(void) { AHCIQState *ahci; @@ -1945,7 +2028,8 @@ int main(int argc, char **argv) qtest_add_func("/ahci/migrate/dma/halted", test_migrate_halted_dma); =20 qtest_add_func("/ahci/max", test_max); - qtest_add_func("/ahci/reset", test_reset); + qtest_add_func("/ahci/reset/simple", test_reset); + qtest_add_func("/ahci/reset/pending_callback", test_reset_pending_call= back); =20 qtest_add_func("/ahci/io/ncq/simple", test_ncq_simple); qtest_add_func("/ahci/migrate/ncq/simple", test_migrate_ncq); --=20 2.41.0