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Sun, 17 Nov 2024 18:18:34 -0800 (PST) From: Joel Stanley To: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Andrew Jeffery , Jamin Lin , Steven Lee , Troy Lee Cc: BMC-SW@aspeedtech.com, qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH] hw/aspeed: Correct minimum access size for all models Date: Mon, 18 Nov 2024 12:48:19 +1030 Message-ID: <20241118021820.4928-1-joel@jms.id.au> X-Mailer: git-send-email 2.45.2 MIME-Version: 1.0 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=2607:f8b0:4864:20::52a; envelope-from=joel.stan@gmail.com; helo=mail-pg1-x52a.google.com X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.001, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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: fail (Header signature does not verify) X-ZM-MESSAGEID: 1731896368637116600 Content-Type: text/plain; charset="utf-8" Guest code was performing a byte load to the SCU MMIO region, leading to the guest code crashing (it should be using proper accessors, but that is not Qemu's bug). Hardware and the documentation[1] both agree that byte loads are okay, so change all of the aspeed devices to accept a minimum access size of 1. [1] See the 'ARM Address Space Mapping' table in the ASPEED docs. This is section 6.1 in the ast2400 and ast2700, and 7.1 in the ast2500 and ast2600 datasheets. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2636 Signed-off-by: Joel Stanley Reviewed-by: Troy Lee --- hw/fsi/aspeed_apb2opb.c | 2 +- hw/gpio/aspeed_gpio.c | 4 ++-- hw/intc/aspeed_vic.c | 2 +- hw/misc/aspeed_scu.c | 4 ++-- hw/misc/aspeed_sdmc.c | 2 +- hw/misc/aspeed_xdma.c | 2 +- hw/net/ftgmac100.c | 4 ++-- hw/sd/aspeed_sdhci.c | 2 +- hw/timer/aspeed_timer.c | 2 +- hw/watchdog/wdt_aspeed.c | 2 +- 10 files changed, 13 insertions(+), 13 deletions(-) diff --git a/hw/fsi/aspeed_apb2opb.c b/hw/fsi/aspeed_apb2opb.c index 0e2cc143f105..855dccf6094c 100644 --- a/hw/fsi/aspeed_apb2opb.c +++ b/hw/fsi/aspeed_apb2opb.c @@ -259,7 +259,7 @@ static const struct MemoryRegionOps aspeed_apb2opb_ops = =3D { .read =3D fsi_aspeed_apb2opb_read, .write =3D fsi_aspeed_apb2opb_write, .valid.max_access_size =3D 4, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .impl.max_access_size =3D 4, .impl.min_access_size =3D 4, .endianness =3D DEVICE_LITTLE_ENDIAN, diff --git a/hw/gpio/aspeed_gpio.c b/hw/gpio/aspeed_gpio.c index a5b3f454e800..c8bb7e590696 100644 --- a/hw/gpio/aspeed_gpio.c +++ b/hw/gpio/aspeed_gpio.c @@ -1372,7 +1372,7 @@ static const MemoryRegionOps aspeed_gpio_ops =3D { .read =3D aspeed_gpio_read, .write =3D aspeed_gpio_write, .endianness =3D DEVICE_LITTLE_ENDIAN, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, }; =20 @@ -1380,7 +1380,7 @@ static const MemoryRegionOps aspeed_gpio_2700_ops =3D= { .read =3D aspeed_gpio_2700_read, .write =3D aspeed_gpio_2700_write, .endianness =3D DEVICE_LITTLE_ENDIAN, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, }; =20 diff --git a/hw/intc/aspeed_vic.c b/hw/intc/aspeed_vic.c index 55fe51a6675f..8ee662064469 100644 --- a/hw/intc/aspeed_vic.c +++ b/hw/intc/aspeed_vic.c @@ -286,7 +286,7 @@ static const MemoryRegionOps aspeed_vic_ops =3D { .read =3D aspeed_vic_read, .write =3D aspeed_vic_write, .endianness =3D DEVICE_LITTLE_ENDIAN, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, .valid.unaligned =3D false, }; diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c index 2c919349cfc0..b7a62da45907 100644 --- a/hw/misc/aspeed_scu.c +++ b/hw/misc/aspeed_scu.c @@ -436,7 +436,7 @@ static const MemoryRegionOps aspeed_ast2500_scu_ops =3D= { .read =3D aspeed_scu_read, .write =3D aspeed_ast2500_scu_write, .endianness =3D DEVICE_LITTLE_ENDIAN, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, .valid.unaligned =3D false, }; @@ -777,7 +777,7 @@ static const MemoryRegionOps aspeed_ast2600_scu_ops =3D= { .read =3D aspeed_ast2600_scu_read, .write =3D aspeed_ast2600_scu_write, .endianness =3D DEVICE_LITTLE_ENDIAN, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, .valid.unaligned =3D false, }; diff --git a/hw/misc/aspeed_sdmc.c b/hw/misc/aspeed_sdmc.c index 4bc9faf691d6..ba700b008e5e 100644 --- a/hw/misc/aspeed_sdmc.c +++ b/hw/misc/aspeed_sdmc.c @@ -195,7 +195,7 @@ static const MemoryRegionOps aspeed_sdmc_ops =3D { .read =3D aspeed_sdmc_read, .write =3D aspeed_sdmc_write, .endianness =3D DEVICE_LITTLE_ENDIAN, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, }; =20 diff --git a/hw/misc/aspeed_xdma.c b/hw/misc/aspeed_xdma.c index 1dd32f72f453..f222c632c099 100644 --- a/hw/misc/aspeed_xdma.c +++ b/hw/misc/aspeed_xdma.c @@ -114,7 +114,7 @@ static const MemoryRegionOps aspeed_xdma_ops =3D { .read =3D aspeed_xdma_read, .write =3D aspeed_xdma_write, .endianness =3D DEVICE_NATIVE_ENDIAN, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, }; =20 diff --git a/hw/net/ftgmac100.c b/hw/net/ftgmac100.c index 478356ee3e10..c8f6e1138ed0 100644 --- a/hw/net/ftgmac100.c +++ b/hw/net/ftgmac100.c @@ -1150,7 +1150,7 @@ static ssize_t ftgmac100_receive(NetClientState *nc, = const uint8_t *buf, static const MemoryRegionOps ftgmac100_ops =3D { .read =3D ftgmac100_read, .write =3D ftgmac100_write, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, .endianness =3D DEVICE_LITTLE_ENDIAN, }; @@ -1158,7 +1158,7 @@ static const MemoryRegionOps ftgmac100_ops =3D { static const MemoryRegionOps ftgmac100_high_ops =3D { .read =3D ftgmac100_high_read, .write =3D ftgmac100_high_write, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, .endianness =3D DEVICE_LITTLE_ENDIAN, }; diff --git a/hw/sd/aspeed_sdhci.c b/hw/sd/aspeed_sdhci.c index 98d5460905df..85e3f05e438f 100644 --- a/hw/sd/aspeed_sdhci.c +++ b/hw/sd/aspeed_sdhci.c @@ -123,7 +123,7 @@ static const MemoryRegionOps aspeed_sdhci_ops =3D { .read =3D aspeed_sdhci_read, .write =3D aspeed_sdhci_write, .endianness =3D DEVICE_NATIVE_ENDIAN, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, }; =20 diff --git a/hw/timer/aspeed_timer.c b/hw/timer/aspeed_timer.c index 149f7cc5a6aa..a116488aa2dd 100644 --- a/hw/timer/aspeed_timer.c +++ b/hw/timer/aspeed_timer.c @@ -460,7 +460,7 @@ static const MemoryRegionOps aspeed_timer_ops =3D { .read =3D aspeed_timer_read, .write =3D aspeed_timer_write, .endianness =3D DEVICE_LITTLE_ENDIAN, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, .valid.unaligned =3D false, }; diff --git a/hw/watchdog/wdt_aspeed.c b/hw/watchdog/wdt_aspeed.c index 39c3f362a833..d9fd6fc9079f 100644 --- a/hw/watchdog/wdt_aspeed.c +++ b/hw/watchdog/wdt_aspeed.c @@ -229,7 +229,7 @@ static const MemoryRegionOps aspeed_wdt_ops =3D { .read =3D aspeed_wdt_read, .write =3D aspeed_wdt_write, .endianness =3D DEVICE_LITTLE_ENDIAN, - .valid.min_access_size =3D 4, + .valid.min_access_size =3D 1, .valid.max_access_size =3D 4, .valid.unaligned =3D false, }; --=20 2.45.2