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2021-12-20ath5k: switch to rate table based lookupJonas Jelonek1-2/+48
Switching from legacy usage of ieee80211_get_tx_rates() lookup to direct rate table lookup in struct ieee80211_sta->rates. The current rate control API allows drivers to directly get rates from ieee80211_sta->rates. ath5k is currently one of the legacy drivers that perform translation/merge with the internal rate table via ieee80211_get_tx_rates provided by rate control API. For our upcoming changes to rate control API and the implementation of transmit power control, this patch changes the behaviour. The call to ieee80211_get_tx_rates and subsequent calls are also avoided. ath5k now directly reads rates from sta->rates into its internal rate table. Cause ath5k does not rely on the rate array in SKB->CB, this is not considered anymore except for the first entry (used for probing). Tested this on a PCEngines ALIX with CMP9-GP miniPCI wifi card (Atheros AR5213A). Generated traffic between AP and multiple STAs before and after applying the patch and simultaneously measured throughput and captured rc_stats. Comparison resulted in same rate selection and no performance loss between both runs. Co-developed-by: Thomas Huehn <thomas.huehn@hs-nordhausen.de> Signed-off-by: Thomas Huehn <thomas.huehn@hs-nordhausen.de> Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20211215215042.637-1-jelonek.jonas@gmail.com
2021-12-20serial: sh-sci: Remove BREAK/FRAME/PARITY/OVERRUN printoutsMagnus Damm1-12/+0
Update the SCIF serial driver to remove printouts for break, frame, parity and overrun errors. This reduces the amount of console printouts generated by the defconfig kernel on R-Car Gen3 for certain use cases. To retrieve more information about such errors the user may inspect counters. Also these errors are fed into the TTY layer for further application specific handling. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Link: https://lore.kernel.org/r/163884254093.18109.2982470198301927679.sendpatchset@octo Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-20serial: 8250_pericom: Use serial_dl_write() instead of open codedAndy Shevchenko1-2/+2
It's better to stick with standard API to write and read DL value when the hardware is compatible with it. In case any quirks are needed it may be easily added in one place rather than modifying code here and there. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20211122133512.8947-4-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-20serial: 8250_pericom: Re-enable higher baud ratesJay Dolan1-1/+1
Add UPF_MAGIC_MULTIPLIER to the port flags since there is now range checking in serial8250_get_baud_rate() in 8250_port.c. Signed-off-by: Jay Dolan <jay.dolan@accesio.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20211122133512.8947-3-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-20serial: 8250_pci: Split out Pericom driverAndy Shevchenko4-400/+228
Pericom along with Acces I/O support consumes a lot of LOCs in 8250_pci.c. For the sake of easier maintenance, split it to a separate driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20211122133512.8947-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-20tty: serial: samsung: Fix console registration from moduleSam Protsenko1-2/+4
On modern Exynos SoCs (like Exynos850) the UART can be implemented as a part of USI IP-core. In such case, USI driver is used to initialize USI registers, and it also calls of_platform_populate() to instantiate all sub-nodes (e.g. serial node) of USI node. When serial driver is built-in, but USI driver is a module, and CONFIG_SERIAL_SAMSUNG_CONSOLE is enabled, next call chain will happen when loading USI module from user space: usi_init v usi_probe v of_platform_populate v s3c24xx_serial_probe v uart_add_one_port v uart_configure_port v register_console v try_enable_new_console v s3c24xx_serial_console_setup But because the serial driver is built-in, and s3c24xx_serial_console_setup() is marked with __init keyword, that symbol will discarded and long gone by that time already, causing failed paging request. That happens during the next config combination: EXYNOS_USI=m SERIAL_SAMSUNG=y SERIAL_SAMSUNG_CONSOLE=y That config should be completely possible, so rather than limiting SERIAL_SAMSUNG choice to "m" only when USI=m, remove __init keyword for all affected functions. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20211204195757.8600-6-semen.protsenko@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-20tty: serial: samsung: Enable console as moduleSam Protsenko2-5/+33
Enable serial driver to be built as a module. To do so, init the console support on driver/module load instead of using console_initcall(). Inspired by commit 87a0b9f98ac5 ("tty: serial: meson: enable console as module"). Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20211204195757.8600-5-semen.protsenko@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-20tty: serial: samsung: Remove USI initializationSam Protsenko2-41/+4
USI control is now extracted to the dedicated USI driver. Remove USI related code from serial driver to avoid conflicts and code duplication. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20211204195757.8600-4-semen.protsenko@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-20Merge branch 'xsa' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tipLinus Torvalds7-65/+190
Merge xen fixes from Juergen Gross: "Fixes for two issues related to Xen and malicious guests: - Guest can force the netback driver to hog large amounts of memory - Denial of Service in other guests due to event storms" * 'xsa' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/netback: don't queue unlimited number of packages xen/netback: fix rx queue stall detection xen/console: harden hvc_xen against event channel storms xen/netfront: harden netfront against event channel storms xen/blkfront: harden blkfront against event channel storms
2021-12-20drm/i915: Ensure i915_vma tests do not get -ENOSPC with the locking changes.Maarten Lankhorst1-1/+16
Now that we require locking to evict, multiple vmas from the same object might not be evicted. This is expected and required, because execbuf will move to short-term pinning by using the lock only. This will cause these tests to fail, because they create a ton of vma's for the same object. Unbind manually to prevent spurious -ENOSPC in those mock tests. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-8-maarten.lankhorst@linux.intel.com
2021-12-20drm/i915: Ensure gem_contexts selftests work with unbind changes, v2.Maarten Lankhorst1-24/+35
In the next commits, we may not evict when refcount = 0. igt_vm_isolation() continuously tries to pin/unpin at same address, but also calls put() on the object, which means the object may not be unpinned in time. Instead of this, re-use the same object over and over, so they can be unbound as required. Changes since v1: - Fix cleaning up obj_b on failure. (Matt) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-7-maarten.lankhorst@linux.intel.com
2021-12-20drm/i915: Force ww lock for i915_gem_object_ggtt_pin_ww, v2.Maarten Lankhorst2-9/+28
We will need the lock to unbind the vma, and wait for bind to complete. Remove the special casing for the !ww path, and force ww locking for all. Changes since v1: - Pass err to for_i915_gem_ww handling for -EDEADLK handling. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-6-maarten.lankhorst@linux.intel.com
2021-12-20drm/i915: Take object lock in i915_ggtt_pin if ww is not setMaarten Lankhorst1-12/+28
i915_vma_wait_for_bind needs the vma lock held, fix the caller. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-5-maarten.lankhorst@linux.intel.com
2021-12-20Merge tag 'samsung-soc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/socArnd Bergmann7-12/+4
Samsung mach/soc changes for v5.17 1. Minor fixes for S3C platforms. 2. Remove HAVE_S3C2410_I2C Kconfig symbol - not really useful. * tag 'samsung-soc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: samsung: Remove HAVE_S3C2410_I2C and use direct dependencies ARM: s3c: add one more "fallthrough" statement in Jive ARM: s3c: include header for prototype of s3c2410_modify_misccr Link: https://lore.kernel.org/r/20211220115530.30961-3-krzysztof.kozlowski@canonical.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20drm/i915: Remove pages_mutex and intel_gtt->vma_ops.set/clear_pages members, v3.Maarten Lankhorst11-439/+374
Big delta, but boils down to moving set_pages to i915_vma.c, and removing the special handling, all callers use the defaults anyway. We only remap in ggtt, so default case will fall through. Because we still don't require locking in i915_vma_unpin(), handle this by using xchg in get_pages(), as it's locked with obj->mutex, and cmpxchg in unpin, which only fails if we race a against a new pin. Changes since v1: - aliasing gtt sets ZERO_SIZE_PTR, not -ENODEV, remove special case from __i915_vma_get_pages(). (Matt) Changes since v2: - Free correct old pages in __i915_vma_get_pages(). (Matt) Remove race of clearing vma->pages accidentally from put, free it but leave it set, as only get has the lock. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-4-maarten.lankhorst@linux.intel.com Reviewed-by: Matthew Auld <matthew.auld@intel.com>
2021-12-20Merge tag 'imx-soc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/socArnd Bergmann4-30/+16
i.MX SoC update for 5.17: - A couple of cleanups from Lukas Bulwahn to remove left-over from i.MX{27,31,35} board file removal, and rename DEBUG_IMX21_IMX27_UART to DEBUG_IMX27_UART. * tag 'imx-soc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: imx: rename DEBUG_IMX21_IMX27_UART to DEBUG_IMX27_UART ARM: imx: remove dead left-over from i.MX{27,31,35} removal Link: https://lore.kernel.org/r/20211218071427.26745-2-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'imx-defconfig-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/defconfigArnd Bergmann2-0/+12
i.MX defconfig update for 5.17: - Enable pinctrl and clock drivers for i.MX8 ULP SoC. - A couple of patches from Adam Ford to enable Camera driver support for Beacon EmbeddedWorks i.MX8MM development kit. - Enable drivers for devices found on TQMa8MxML-MBa8Mx board. - Enable RTC_DRV_RV3029C2 driver support for DHCOM devices. * tag 'imx-defconfig-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: imx_v6_v7_defconfig: Enable for DHCOM devices required RTC_DRV_RV3029C2 arm64: defconfig: enable drivers for booting i.MX8ULP arm64: defconfig: enable drivers for TQ TQMa8MxML-MBa8Mx arm64: defconfig: Enable OV5640 arm64: defconfig: Enable VIDEO_IMX_MEDIA Link: https://lore.kernel.org/r/20211218071427.26745-6-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20drm/i915: Change shrink ordering to use locking around unbinding.Maarten Lankhorst1-20/+18
Call drop_pages with the gem object lock held, instead of the other way around. This will allow us to drop the vma bindings with the gem object lock held. We plan to require the object lock for unpinning in the future, and this is an easy target. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-3-maarten.lankhorst@linux.intel.com
2021-12-20drm/i915: Remove unused bits of i915_vma/active apiMaarten Lankhorst4-57/+14
When reworking the code to move the eviction fence to the object, the best code is removed code. Remove some functions that are unused, and change the function definition if it's only used in 1 place. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> [mlankhorst: Remove new use of i915_active_has_exclusive] Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-2-maarten.lankhorst@linux.intel.com
2021-12-20Merge tag 'at91-defconfig-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/defconfigArnd Bergmann3-3/+19
AT91 defconfig #1 for 5.17: - Sama7: addition of QSPI SPI-NOR and the QSPI controller for this product - Addition of the crypto algorithms that are fallbacks for HW engines * tag 'at91-defconfig-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: ARM: configs: at91: Enable crypto software implementations ARM: configs: at91: sama7: Enable SPI NOR and QSPI controller Link: https://lore.kernel.org/r/20211217165850.29694-1-nicolas.ferre@microchip.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'tegra-for-5.17-arm-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/defconfigArnd Bergmann2-0/+20
ARM: tegra: Default configuration changes for v5.17-rc1 These patches enable various drivers used by new and existing boards in both the Tegra default configuration and the multi-v7 configuration. * tag 'tegra-for-5.17-arm-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: ARM: config: multi v7: Enable NVIDIA Tegra20 APB DMA driver ARM: config: multi v7: Enable NVIDIA Tegra20 S/PDIF driver ARM: tegra_defconfig: Enable S/PDIF driver ARM: config: multi v7: Enable display drivers used by Tegra devices ARM: tegra_defconfig: Enable drivers wanted by Acer Chromebooks and ASUS tablets Link: https://lore.kernel.org/r/20211217162253.1801077-6-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'samsung-dt64-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/dtArnd Bergmann9-33/+258
Samsung DTS ARM64 changes for v5.17 1. Add bindings for: Exynos USI, Samsung Galaxy A8 (2018) board, WinLink E850-96 board and WinLink vendor prefix. 2. Add pinctrl definitions used for Exynos850. 3. Minor fixes and improvements. 4. Convert serial on ExynosAutov9 to new hierarchy where serial is part of USI node. * tag 'samsung-dt64-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: dt-bindings: pinctrl: samsung: Add pin drive definitions for Exynos850 dt-bindings: arm: samsung: Document E850-96 board binding dt-bindings: Add vendor prefix for WinLink dt-bindings: arm: samsung: document jackpotlte board binding dt-bindings: soc: samsung: Fix I2C clocks order in USI binding example arm64: dts: exynos: convert serial_0 to USI on ExynosAutov9 dt-bindings: soc: samsung: Add Exynos USI bindings arm64: dts: exynos: Rename hsi2c nodes to i2c for Exynos5433 and Exynos7 Link: https://lore.kernel.org/r/20211220115530.30961-2-krzysztof.kozlowski@canonical.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'samsung-dt-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/dtArnd Bergmann2-6/+9
Samsung DTS ARM changes for v5.17 1. Fix Bluetooth GPIO on GT-I9100. 2. Minor improvements and dtschema fixes. * tag 'samsung-dt-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: dts: exynos: Rename hsi2c nodes to i2c for Exynos5260 ARM: dts: exynos: Use interrupt for BCM4330 host wakeup in I9100 ARM: dts: exynos: Fix BCM4330 Bluetooth reset polarity in I9100 Link: https://lore.kernel.org/r/20211220115530.30961-1-krzysztof.kozlowski@canonical.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'v5.16-next-dts32' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/dtArnd Bergmann3-1/+32
- add device tree for Fairphone 1 (mt6589) * tag 'v5.16-next-dts32' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux: arm: dts: mt6589: Add device tree for Fairphone 1 Link: https://lore.kernel.org/r/9ea1efa3-492b-7204-58f8-5253cd5b05f9@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'v5.16-next-dts64' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/dtArnd Bergmann22-89/+569
mt8183: - add Acer Chromebook 314 - evb: add node to read thermisor from AUXIN0 - add several sku's for Lenovo IdeaPad Flex 3 Chromebook and ASUS Chromebook Detachable CM3 - update sensor mapping of the board temperature sensor - add some coresight nodes for CPU debugging - USB Type C connector description to all Chromebooks mt8192, mt8516: - smaller i2c related fixes mt8173: - enable backlight enable pin to all Chromebooks mt7986[a,b]: - add basic support * tag 'v5.16-next-dts64' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux: (21 commits) arm64: dts: mediatek: add pinctrl support for mt7986b arm64: dts: mediatek: add pinctrl support for mt7986a arm64: dts: mt8183: kukui: Add Type C node arm64: dts: mediatek: add basic mt7986 support dt-bindings: arm64: dts: mediatek: Add mt7986 series arm64: dts: mt8183: support coresight-cpu-debug for mt8183 arm64: dts: mediatek: mt8173-elm: Add backlight enable pin config arm64: dts: mediatek: mt8173-elm: Move pwm pinctrl to pwm0 node arm64: dts: mt8183-kukui: Update Tboard sensor mapping table arm64: dts: mediatek: mt8173: Add gce-client-reg to display od/ufo dt-bindings: arm64: dts: mediatek: Add sku22 for mt8183 kakadu board dt-bindings: arm64: dts: mediatek: Add more SKUs for mt8183 fennel board dt-bindings: arm64: dts: mediatek: Add mt8183-kukui-jacuzzi-cozmo arm64: dts: mt8183: Add kakadu sku22 arm64: dts: mt8183: Add more fennel SKUs arm64: dts: mt8183: Add kukui-jacuzzi-cozmo board arm64: dts: mt8183: jacuzzi: remove unused ddc-i2c-bus arm64: dts: mediatek: mt8183-evb: Add node for thermistor arm64: dts: mediatek: mt8516: remove 2 invalid i2c clocks arm64: dts: mediatek: mt8192: fix i2c node names ... Link: https://lore.kernel.org/r/0d05e8b6-c56f-bad7-00c1-44682cedb38f@suse.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20gpio: msc313: Add support for SSD201 and SSD202DDaniel Palmer1-0/+261
This adds GPIO support for the SSD201 and SSD202D chips. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2021-12-20Merge tag 'imx-dt64-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dtArnd Bergmann52-151/+5837
i.MX arm64 device tree change for 5.17: - New SoC support: i.MX8 ULP. - New board support: i.MX8MM/MN based TQMa8Mx boards, iMX8MN BSH SMM S2, i.MX8 ULP EVK. - A series from Adam Ford to enable Camera and USB support for imx8mm-beacon device. - Add overlays for various serdes protocols on LS1028A QDS board using different PHY cards. - A series from Biwen Li to update LS1028A devices around RTC, flextimer and PWM support. - A series from Joakim Zhang to update ENET/FEC suppport on i.MX8M devices. - A couple of changes from Lucas Stach to update nitrogen8-som Ethernet PHY and I2C1 pad configuration. - A series from Martin Kepplinger to split out a shared imx8mq-librem5-r3 dtsi for Librem5 devices. - Add cache descriptions for i.MX8 SoCs. - A series from Vladimir Oltean to update ls1028a-rdb device tree in order to share the DTS between Linux and U-Boot. - Random device addtion to various i.MX8 and LX2160A based devices. * tag 'imx-dt64-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (56 commits) arm64: dts: imx8mp-evk: configure multiple queues on eqos arm64: dts: ls1028a-qds: add overlays for various serdes protocols arm64: dts: ls1028a-qds: enable lpuart1 arm64: dts: ls1028a-qds: move rtc node to the correct i2c bus arm64: dts: ls1028a-rdb: enable pwm0 arm64: dts: ls1028a: add flextimer based pwm nodes arm64: dts: ls1028a: add ftm_alarm1 node to be used as wakeup source arm64: dts: ls1028a: Add PCIe EP nodes arm64: dts: lx2162a-qds: add interrupt line for RTC node arm64: dts: lx2162a-qds: support SD UHS-I and eMMC HS400 modes arm64: dts: lx2160a: enable usb3-lpm-capable for usb3 nodes arm64: dts: lx2160a-qds: Add mdio mux nodes arm64: dts: lx2160a: add optee-tz node arm64: dts: lx2160a-rdb: Add Inphi PHY node arm64: dts: imx8mm: don't assign PLL2 in SoC dtsi arm64: dts: nitrogen8-som: correct i2c1 pad-ctrl arm64: dts: nitrogen8-som: correct network PHY reset arm64: dts: imx8mn-bsh-smm-s2/pro: Add iMX8MN BSH SMM S2 boards arm64: dts: imx8mm/n: Remove the 'pm-ignore-notify' property arm64: dts: imx8ulp: add power domain entry for usdhc ... Link: https://lore.kernel.org/r/20211218071427.26745-5-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'imx-dt-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dtArnd Bergmann44-52/+2043
i.MX arm device tree change for 5.17: - New board support: TQ-Systems MBa6x, Y Soft IOTA Crux/Crux+ board, JOZ Access Point, Phytec PEB-WLBT-05 support, BSH SMM-M2 IMX6ULZ SystemMaster. - Update SPBA bus node name to match binding schema. - A series from Christoph Niedermaier to update imx6qdl-dhcom board around Ethernet and USB support. - A series from Giulio Benetti to clean up undocumented/unused fixed clock compatibles. - A series from Laurent Pinchart to update i.MX7 MIPI_CSI support. - A couple of changes from Russell to update phy-mode for vf610-zii-dev-rev-b board. - Add Wacom digitizer support for imx7d-remarkable2 device. * tag 'imx-dt-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (36 commits) ARM: dts: imx6: phytec: Add PEB-WLBT-05 support ARM: dts: imx6qdl: phytec: Add support for optional PEB-AV-02 LCD adapter ARM: dts: imx6qdl: phytec: Add support for optional PEB-EVAL-01 board ARM: dts: imx6qdl-dhcom: Add USB overcurrent pin on SoM layer ARM: dts: imx7d-remarkable2: add wacom digitizer device ARM: dts: imx6ulz-bsh-smm-m2: Add BSH SMM-M2 IMX6ULZ SystemMaster ARM: dts: imx6qdl-dhcom: Identify the PHY by ethernet-phy-id0007.c0f0 ARM: dts: imx6qdl-dhcom: Align PHY reset timing with other DHCOM SoMs ARM: dts: imx6qdl: drop "fsl,imx-ckih1" ARM: dts: imx6qdl: drop "fsl,imx-ckil" ARM: dts: imx6qdl: drop "fsl,imx-osc" ARM: dts: imx53: drop "fsl,imx-ckih2" ARM: dts: imx53: drop "fsl,imx-ckih1" ARM: dts: imx53: drop "fsl,imx-ckil" ARM: dts: imx53: drop "fsl,imx-osc" ARM: dts: imx51: drop "fsl,imx-ckih2" ARM: dts: imx51: drop "fsl,imx-ckih1" ARM: dts: imx51: drop "fsl,imx-ckil" ARM: dts: imx51: drop "fsl,imx-osc" ARM: dts: imx50: drop "fsl,imx-ckih2" ... Link: https://lore.kernel.org/r/20211218071427.26745-4-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'imx-bindings-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dtArnd Bergmann5-0/+252
i.MX dt-bindings update for 5.17: - New bindings for i.MX SPBA bus and i.MX8MN DISP blk-ctrl. - New vendor prefix for BSH Hausgeraete GmbH and JOZ BV. - New compatibles for various i.MX6 and i.MX8 boards. - Add optional 'fsl,continuous-burst-clk' property support for imx-weim binding. * tag 'imx-bindings-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: dt-bindings: soc: add binding for i.MX8MN DISP blk-ctrl dt-bindings: arm: fsl: Add BSH SMM-M2 IMX6ULZ SystemMaster board dt-bindings: arm: fsl: Add iMX8MN BSH SMM S2 boards dt-bindings: Add vendor prefix for BSH Hausgeraete GmbH dt-bindings: soc: imx: Add binding doc for spba bus dt-bindings: bus: imx-weim: add words about continuous bclk dt-bindings: arm: fsl: add TQMa8Mx boards dt-bindings: arm: fsl: add TQMa8MxNL boards dt-bindings: arm: fsl: add TQMa8MxML boards dt-bindings: arm: fsl: Add binding for imx8ulp evk dt-bindings: arm: fsl: Add Y Soft IOTA Crux/Crux+ boards dt-bindings: arm: fsl: add TQ-Systems boards based on i.MX6Q/QP/DL dt-bindings: arm: fsl: add JOZ Access Point dt-bindings: vendor-prefixes: Add an entry for JOZ BV Link: https://lore.kernel.org/r/20211218071427.26745-3-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20ARM: dts: Remove "spidev" nodesRob Herring12-172/+1
"spidev" is not a real device, but a Linux implementation detail. It has never been documented either. The kernel has WARNed on the use of it for over 6 years. Time to remove its usage from the tree. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20211217221232.3664417-1-robh@kernel.org' Reviwed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'mvebu-dt-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/dtArnd Bergmann1-2/+2
mvebu dt for 5.17 (part 1) Add generic compatible to UART nodes on Armada 38x * tag 'mvebu-dt-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu: ARM: dts: armada-38x: Add generic compatible to UART nodes Link: https://lore.kernel.org/r/875yrnm8uq.fsf@BL-laptop Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'mvebu-dt64-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/dtArnd Bergmann3-0/+157
mvebu dt64 for 5.17 (part 1) Enable more network hardware and gpios on CN9130-CRB Add new clock node needed by comphy on armada-37xx * tag 'mvebu-dt64-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu: arm64: dts: marvell: cn9130: enable CP0 GPIO controllers arm64: dts: marvell: cn9130: add GPIO and SPI aliases arm64: dts: marvell: armada-37xx: Add xtal clock to comphy node arm/arm64: dts: Add MV88E6393X to CN9130-CRB device tree arm/arm64: dts: Enable CP0 GPIOs for CN9130-CRB Link: https://lore.kernel.org/r/878rwjm8vj.fsf@BL-laptop Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'ti-k3-dt-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into arm/dtArnd Bergmann21-9/+2565
Devicetree changes for TI K3 platforms for v5.17 merge window: * New Platforms: - J721s2 SoC, SoM and Common Processor Board support * New features: - CAN support on AM64 EVM and SK - TimeSync Router on AM64 * Fixes: - Correct d-cache-sets info on J7200 - Fix L2 cache-sets value for J721e/J7200/AM64 - Fixes for dtbs_check warnings wrt serdes_ln_ctrl node on J721e/J7200 - Disable McASP on IoT2050 board to fix dtbs_check warnings * tag 'ti-k3-dt-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux: arch: arm64: ti: Add support J721S2 Common Processor Board arm64: dts: ti: Add initial support for J721S2 System on Module arm64: dts: ti: Add initial support for J721S2 SoC dt-bindings: pinctrl: k3: Introduce pinmux definitions for J721S2 dt-bindings: arm: ti: Add bindings for J721s2 SoC arm64: dts: ti: iot2050: Disable mcasp nodes at dtsi level arm64: dts: ti: k3-am642-evm/sk: Add support for main domain mcan nodes in EVM and disable them on SK arm64: dts: ti: k3-am64-main: Add support for MCAN arm64: dts: ti: k3-j721e-common-proc-board: Add support for mcu and main mcan nodes arm64: dts: ti: k3-j721e: Add support for MCAN nodes arm64: dts: ti: am654-base-board/am65-iot2050-common: Disable mcan nodes arm64: dts: ti: k3-am65-mcu: Add Support for MCAN arm64: dts: ti: k3-am64-main: add timesync router node arm64: dts: ti: k3-j7200: Correct the d-cache-sets info arm64: dts: ti: k3-j721e: Fix the L2 cache sets arm64: dts: ti: k3-j7200: Fix the L2 cache sets arm64: dts: ti: k3-am642: Fix the L2 cache sets arm64: dts: ti: j721e-main: Fix 'dtbs_check' in serdes_ln_ctrl node arm64: dts: ti: j7200-main: Fix 'dtbs_check' serdes_ln_ctrl node arm64: dts: ti: k3-j721e: correct cache-sets info Link: https://lore.kernel.org/r/20211217172806.10023-2-vigneshr@ti.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'tegra-for-5.17-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/dtArnd Bergmann27-282/+1454
arm64: tegra: Device tree changes for v5.17-rc1 The vast majority of this contains various updates and cleanups to the Tegra device trees that will eventually help validate all of them using the dt-schema infrastructure. Another notable chunk of this contains additional Tegra234 support as well as support for the new Jetson AGX Orin Developer Kit. * tag 'tegra-for-5.17-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: (47 commits) arm64: tegra: Add host1x hotflush reset on Tegra210 arm64: tegra: Hook up MMC and BPMP to memory controller arm64: tegra: Add memory controller on Tegra234 arm64: tegra: Add EMC general interrupt on Tegra194 arm64: tegra: Update SDMMC4 speeds for Tegra194 arm64: tegra: Add dma-coherent for Tegra194 VIC arm64: tegra: Rename Ethernet PHY nodes arm64: tegra: Remove unused only-1-8-v properties arm64: tegra: Sort Tegra210 XUSB clocks correctly arm64: tegra: Add missing TSEC properties on Tegra210 arm64: tegra: jetson-nano: Remove extra PLL power supplies for PCIe and XUSB arm64: tegra: smaug: Remove extra PLL power supplies for XUSB arm64: tegra: jetson-tx1: Remove extra PLL power supplies for PCIe and XUSB arm64: tegra: Rename GPIO hog nodes to match schema arm64: tegra: Remove unsupported regulator properties arm64: tegra: Rename TCU node to "serial" arm64: tegra: Remove undocumented Tegra194 PCIe "core_m" clock arm64: tegra: Drop unused properties for Tegra194 PCIe arm64: tegra: Fix Tegra194 HSP compatible string arm64: tegra: Drop unsupported nvidia,lpdr property ... Link: https://lore.kernel.org/r/20211217162253.1801077-4-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20gpio: msc313: Code clean upsDaniel Palmer1-4/+1
- Remove the unneeded assignment of ret before returning it. - Remove an unneeded blank line Signed-off-by: Daniel Palmer <daniel@0x0f.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2021-12-20dt-bindings: gpio: msc313: Add offsets for ssd20xdDaniel Palmer1-0/+71
Add the gpio offsets for the SSD201 and SSD202D chips. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2021-12-20dt-bindings: gpio: msc313: Add compatible for ssd20xdDaniel Palmer1-1/+3
Add a compatible string for "ssd20xd" for the SigmaStar SSD201 and SSD202D chips. These chips are the same die with different memory bonded so they don't need their own strings. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2021-12-20Merge tag 'tegra-for-5.17-dt-bindings' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/dtArnd Bergmann34-710/+1809
dt-bindings: Changes for v5.17-rc1 This contains a bunch of json-schema conversions for various Tegra- related DT bindings and additions for new SoC and board support. * tag 'tegra-for-5.17-dt-bindings' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: (30 commits) media: dt: bindings: tegra-vde: Document OPP and power domain media: dt: bindings: tegra-vde: Convert to schema dt-bindings: host1x: Document Memory Client resets of Host1x, GR2D and GR3D dt-bindings: host1x: Document OPP and power domain properties dt-bindings: clock: tegra-car: Document new clock sub-nodes dt-bindings: ARM: tegra: Document Pegatron Chagall dt-bindings: ARM: tegra: Document ASUS Transformers dt-bindings: usb: tegra-xudc: Document interconnects and iommus properties dt-bindings: serial: Document Tegra234 TCU dt-bindings: serial: tegra-tcu: Convert to json-schema dt-bindings: thermal: tegra186-bpmp: Convert to json-schema dt-bindings: firmware: tegra: Convert to json-schema dt-bindings: tegra: pmc: Convert to json-schema dt-bindings: serial: 8250: Document Tegra234 UART dt-bindings: mmc: tegra: Document Tegra234 SDHCI dt-bindings: fuse: tegra: Document Tegra234 FUSE dt-bindings: fuse: tegra: Convert to json-schema dt-bindings: rtc: tegra: Document Tegra234 RTC dt-bindings: rtc: tegra: Convert to json-schema dt-bindings: mailbox: tegra: Document Tegra234 HSP ... Link: https://lore.kernel.org/r/20211217162253.1801077-3-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'samsung-drivers-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/driversArnd Bergmann10-2/+487
Samsung SoC drivers changes for v5.17 1. Exynos ChipID: add Exynos7885 support. 2. Exynos PMU: add Exynos850 support. 3. Minor bindings cleanup. 4. Add Exynos USIv2 (Universal Serial Interface) driver. The USI block is a shared IP block between I2C, UART/serial and SPI. Basically one has to choose which feature the USI block will support and later the regular I2C/serial/SPI driver will bind and work. This merges also one commit with dt-binding headers from my dts64 pull request. Together with a future serial driver change, this will break the ABI. Affected: Serial on ExynosAutov9 SADK and out-of-tree ExynosAutov9 boards Why: To properly and efficiently support the USI with new hierarchy of USI-{serial,SPI,I2C} devicetree nodes. Rationale: Recently added serial and USI support was short-sighted and did not allow to smooth support of other features (SPI and I2C). Adding support for USI-SPI and USI-I2C would effect in code duplication. Adding support for different USI versions (currently supported is USIv2 but support for v1 is planned) would cause even more code duplication and create a solution difficult to maintain. Since USI-serial and ExynosAutov9 have been added recently, are considered fresh development features and there are no supported products using them, the code/solution is being refactored in non-backwards compatible way. The compatibility is not broken yet. It will be when serial driver changes are accepted. The ABI break was discussed with only known users of ExynosAutov9 and received their permission. * tag 'samsung-drivers-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: dt-bindings: soc: samsung: keep SoC driver bindings together soc: samsung: Add USI driver dt-bindings: soc: samsung: Add Exynos USI bindings soc: samsung: exynos-pmu: Add Exynos850 support dt-bindings: samsung: pmu: Document Exynos850 soc: samsung: exynos-chipid: add Exynos7885 SoC support soc: samsung: exynos-chipid: describe which SoCs go with compatibles Link: https://lore.kernel.org/r/20211220115405.30434-2-krzysztof.kozlowski@canonical.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'imx-drivers-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/driversArnd Bergmann4-4/+125
i.MX drivers update for 5.17: - A number of patches from Adam Ford to update gpcv2 and blk-ctrl driver to keep i.MX8MM VPU-H1 and i.MX8MN GPUMIX bus clocks active, and add i.MX8MN display related domain support. - Add optional continuous burst clock support for imx-weim bus driver. - Call pm_runtime_put_sync_suspend() instead of pm_runtime_put() in gpcv2 driver to prevent a sequence issue seen with i.MX8MM GPU and MIX domain. * tag 'imx-drivers-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: soc: imx: imx8m-blk-ctrl: add i.MX8MN DISP blk-ctrl dt-bindings: power: imx8mn: add defines for DISP blk-ctrl domains soc: imx: gpcv2: Add dispmix and mipi domains to imx8mn soc: imx: gpcv2: keep i.MX8MN gpumix bus clock enabled bus: imx-weim: optionally enable continuous burst clock soc: imx: gpcv2: keep i.MX8MM VPU-H1 bus clock active soc: imx: gpcv2: Synchronously suspend MIX domains Link: https://lore.kernel.org/r/20211218071427.26745-1-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge tag 'at91-soc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/driversArnd Bergmann1-0/+2
AT91 SoC #1 for 5.17: - one low priority fix about of_node_put() missing in PM code * tag 'at91-soc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: ARM: at91: pm: Add of_node_put() before goto Link: https://lore.kernel.org/r/20211217164134.28566-1-nicolas.ferre@microchip.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20Merge branch irq/misc-5.17 into irq/irqchip-nextMarc Zyngier7-11/+33
* irq/misc-5.17: : . : Misc irqchip fixes: : : - Disable GICv4.1 RD's VPE table at boot time to avoid RAS errors : - Fix Ingenic TCU's u32/unsigned long abuse : - Some GICv2m constifying : - Mark imx_gpcv2_instance as __ro_after_init : - Enable a few missing IRQs on Spear : - Conversion to platform_get_irq_optional() for the Renesas irqchips : . irqchip/renesas-intc-irqpin: Use platform_get_irq_optional() to get the interrupt irqchip/renesas-irqc: Use platform_get_irq_optional() to get the interrupt irqchip/gic-v4: Disable redistributors' view of the VPE table at boot time irqchip/ingenic-tcu: Use correctly sized arguments for bit field irqchip/gic-v2m: Add const to of_device_id irqchip/imx-gpcv2: Mark imx_gpcv2_instance with __ro_after_init irqchip/spear-shirq: Add support for IRQ 0..6 Signed-off-by: Marc Zyngier <maz@kernel.org>
2021-12-20KVM: arm64: Fix comment on barrier in kvm_psci_vcpu_on()Fuad Tabba1-1/+1
The barrier is there for power_off rather than power_state. Probably typo in commit 358b28f09f0ab074 ("arm/arm64: KVM: Allow a VCPU to fully reset itself"). Signed-off-by: Fuad Tabba <tabba@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211208193257.667613-3-tabba@google.com
2021-12-20KVM: arm64: Fix comment for kvm_reset_vcpu()Fuad Tabba1-4/+3
The comment for kvm_reset_vcpu() refers to the sysreg table as being the table above, probably because of the code extracted at commit f4672752c321ea36 ("arm64: KVM: virtual CPU reset"). Fix the comment to remove the potentially confusing reference. Signed-off-by: Fuad Tabba <tabba@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211208193257.667613-2-tabba@google.com
2021-12-20KVM: arm64: Use defined value for SCTLR_ELx_EEFuad Tabba1-1/+1
Replace the hardcoded value with the existing definition. No functional change intended. Signed-off-by: Fuad Tabba <tabba@google.com> Acked-by: Will Deacon <will@kernel.org> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211208192810.657360-1-tabba@google.com
2021-12-20drm/i915/adl-n: Enable ADL-N platformTejas Upadhyay6-0/+20
Adding PCI device ids and enabling ADL-N platform. ADL-N from i915 point of view is subplatform of ADL-P. BSpec: 68397 Changes since V2: - Added version log history Changes since V1: - replace IS_ALDERLAKE_N with IS_ADLP_N - Jani Nikula Signed-off-by: Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com> Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211210051802.4063958-1-tejaskumarx.surendrakumar.upadhyay@intel.com
2021-12-20parisc: Clear stale IIR value on instruction access rights trapHelge Deller1-0/+2
When a trap 7 (Instruction access rights) occurs, this means the CPU couldn't execute an instruction due to missing execute permissions on the memory region. In this case it seems the CPU didn't even fetched the instruction from memory and thus did not store it in the cr19 (IIR) register before calling the trap handler. So, the trap handler will find some random old stale value in cr19. This patch simply overwrites the stale IIR value with a constant magic "bad food" value (0xbaadf00d), in the hope people don't start to try to understand the various random IIR values in trap 7 dumps. Noticed-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de>
2021-12-20Merge tag 'tegra-for-5.17-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/driversArnd Bergmann7-25/+326
soc/tegra: Changes for v5.17-rc1 This set of changes contains some preparatory work that is shared by several branches and trees to support DVFS via power domains. There's also a bit of cleanup and improvements to reboot on chips that use PSCI. * tag 'tegra-for-5.17-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: soc/tegra: pmc: Rename core power domain soc/tegra: pmc: Rename 3d power domains soc/tegra: regulators: Prepare for suspend soc/tegra: fuse: Use resource-managed helpers soc/tegra: fuse: Reset hardware soc/tegra: pmc: Add reboot notifier soc/tegra: Don't print error message when OPPs not available Link: https://lore.kernel.org/r/20211217162253.1801077-1-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-12-20KVM: selftests: Add test to verify TRIPLE_FAULT on invalid L2 guest stateSean Christopherson3-0/+107
Add a selftest to attempt to enter L2 with invalid guests state by exiting to userspace via I/O from L2, and then using KVM_SET_SREGS to set invalid guest state (marking TR unusable is arbitrary chosen for its relative simplicity). This is a regression test for a bug introduced by commit c8607e4a086f ("KVM: x86: nVMX: don't fail nested VM entry on invalid guest state if !from_vmentry"), which incorrectly set vmx->fail=true when L2 had invalid guest state and ultimately triggered a WARN due to nested_vmx_vmexit() seeing vmx->fail==true while attempting to synthesize a nested VM-Exit. The is also a functional test to verify that KVM sythesizes TRIPLE_FAULT for L2, which is somewhat arbitrary behavior, instead of emulating L2. KVM should never emulate L2 due to invalid guest state, as it's architecturally impossible for L1 to run an L2 guest with invalid state as nested VM-Enter should always fail, i.e. L1 needs to do the emulation. Stuffing state via KVM ioctl() is a non-architctural, out-of-band case, hence the TRIPLE_FAULT being rather arbitrary. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20211207193006.120997-5-seanjc@google.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-12-20KVM: VMX: Fix stale docs for kvm-intel.emulate_invalid_guest_stateSean Christopherson1-2/+6
Update the documentation for kvm-intel's emulate_invalid_guest_state to rectify the description of KVM's default behavior, and to document that the behavior and thus parameter only applies to L1. Fixes: a27685c33acc ("KVM: VMX: Emulate invalid guest state by default") Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20211207193006.120997-4-seanjc@google.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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