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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"A collection of fixes I've been accruing over the last few weeks, none
of them have been severe enough to warrant flushing the queue but it's
been long enough now that it's a good idea to send them in.
A handful of them are fixups for QSPI DT/bindings/compatibles, some
smaller fixes for system DMA clock control and TMU interrupts on i.MX,
a handful of fixes for OMAP, including a fix for DSI (display) on
omap5"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (27 commits)
arm64: dts: ns2: Fixed QSPI compatible string
ARM: dts: BCM5301X: Fixed QSPI compatible string
ARM: dts: NSP: Fixed QSPI compatible string
ARM: dts: bcm: HR2: Fixed QSPI compatible string
dt-bindings: spi: Fix spi-bcm-qspi compatible ordering
ARM: dts: imx6sx: fix the pad QSPI1B_SCLK mux mode for uart3
arm64: dts: imx8mp: correct sdma1 clk setting
arm64: dts: imx8mq: Fix TMU interrupt property
ARM: dts: imx7d-zii-rmu2: fix rgmii phy-mode for ksz9031 phy
ARM: dts: vfxxx: Add syscon compatible with OCOTP
ARM: dts: imx6q-logicpd: Fix broken PWM
arm64: dts: imx: Add missing imx8mm-beacon-kit.dtb to build
ARM: dts: imx6q-prtwd2: Remove unneeded i2c unit name
ARM: dts: imx6qdl-gw51xx: Remove unneeded #address-cells/#size-cells
ARM: dts: imx7ulp: Correct gpio ranges
ARM: dts: ls1021a: fix QuadSPI-memory reg range
arm64: defconfig: Enable ptn5150 extcon driver
arm64: defconfig: Enable USB gadget with configfs
ARM: configs: Update Integrator defconfig
ARM: dts: omap5: Fix DSI base address and clocks
...
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https://github.com/Broadcom/stblinux into arm/fixes
This pull request contains Broadcom ARM-based SoCs Device Tree fixes for
5.9, please pull the following:
- Florian fixes the Broadcom QSPI controller binding such that the most
specific compatible string is the left most one, and all existing
in-tree users are updated as well.
* tag 'arm-soc/for-5.9/devicetree-fixes' of https://github.com/Broadcom/stblinux:
arm64: dts: ns2: Fixed QSPI compatible string
ARM: dts: BCM5301X: Fixed QSPI compatible string
ARM: dts: NSP: Fixed QSPI compatible string
ARM: dts: bcm: HR2: Fixed QSPI compatible string
dt-bindings: spi: Fix spi-bcm-qspi compatible ordering
Link: https://lore.kernel.org/r/20200909211857.4144718-1-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
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The string was incorrectly defined before from least to most specific,
swap the compatible strings accordingly.
Fixes: ff73917d38a6 ("ARM64: dts: Add QSPI Device Tree node for NS2")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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The string was incorrectly defined before from least to most
specific, swap the compatible strings accordingly.
Fixes: 1c8f40650723 ("ARM: dts: BCM5301X: convert to iProc QSPI")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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The string was incorrectly defined before from least to most
specific, swap the compatible strings accordingly.
Fixes: 329f98c1974e ("ARM: dts: NSP: Add QSPI nodes to NSPI and bcm958625k DTSes")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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The string was incorrectly defined before from least to most specific,
swap the compatible strings accordingly.
Fixes: b9099ec754b5 ("ARM: dts: Add Broadcom Hurricane 2 DTS include file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 5.9, round 2:
- Fix the misspelling of 'interrupts' property in i.MX8MQ TMU DT node.
- Correct 'ahb' clock for i.MX8MP SDMA1 in device tree.
- Fix pad QSPI1B_SCLK mux mode for UART3 on i.MX6SX.
* tag 'imx-fixes-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6sx: fix the pad QSPI1B_SCLK mux mode for uart3
arm64: dts: imx8mp: correct sdma1 clk setting
arm64: dts: imx8mq: Fix TMU interrupt property
Link: https://lore.kernel.org/r/20200909143844.GA25109@dragon
Signed-off-by: Olof Johansson <olof@lixom.net>
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The pad QSPI1B_SCLK mux mode 0x1 is for function UART3_DTE_TX,
correct the mux mode.
Fixes: 743636f25f1d ("ARM: dts: imx: add pin function header for imx6sx")
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Correct sdma1 ahb clk, otherwise wrong 1:1 clk ratio will be chosed so
that sdma1 function broken. sdma1 should use 1:2 clk, while sdma2/3 use
1:1.
Fixes: 6d9b8d20431f ("arm64: dts: freescale: Add i.MX8MP dtsi support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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"interrupt" is not a valid property. Using proper name fixes dtbs_check
warning:
arch/arm64/boot/dts/freescale/imx8mq-zii-ultra-zest.dt.yaml: tmu@30260000: 'interrupts' is a required property
Fixes: e464fd2ba4d4 ("arm64: dts: imx8mq: enable the multi sensor TMU")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Fixes for omaps for v5.9-rc cycle
Few fixes for omap based devices:
- Fix of_clk_get() error handling for omap-iommu
- Fix missing audio pinctrl entries for logicpd boards
- Fix video for logicpd-som-lv after switch to generic panels
- Fix omap5 DSI clocks base
* tag 'omap-for-v5.9/fixes-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: omap5: Fix DSI base address and clocks
ARM: dts: logicpd-som-lv-baseboard: Fix missing video
ARM: dts: logicpd-som-lv-baseboard: Fix broken audio
ARM: dts: logicpd-torpedo-baseboard: Fix broken audio
ARM: OMAP2+: Fix an IS_ERR() vs NULL check in _get_pwrdm()
Link: https://lore.kernel.org/r/pull-1599132064-54898@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
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DSI was not probing due to base address off by 0x1000, and sys_clk
missing.
With this patch, the Pyra display works if HDMI is disabled in the
device tree.
Fixes: 5a507162f096 ("ARM: dts: Configure interconnect target module for omap5 dsi1")
Signed-off-by: David Shah <dave@ds0.me>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>
[tony@atomide.com: standardized subject line, added fixes tag]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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A previous commit removed the panel-dpi driver, which made the
SOM-LV video stop working because it relied on the DPI driver
for setting video timings. Now that the simple-panel driver is
available in omap2plus, this patch migrates the SOM-LV dev kits
to use a similar panel and remove the manual timing requirements.
A similar patch was already done and applied to the Torpedo family.
Fixes: 8bf4b1621178 ("drm/omap: Remove panel-dpi driver")
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Older versions of U-Boot would pinmux the whole board, but as
the bootloader got updated, it started to only pinmux the pins
it needed, and expected Linux to configure what it needed.
Unfortunately this caused an issue with the audio, because the
mcbsp2 pins were configured in the device tree but never
referenced by the driver. When U-Boot stopped muxing the audio
pins, the audio died.
This patch adds the references to the associate the pin controller
with the mcbsp2 driver which makes audio operate again.
Fixes: 5cb8b0fa55a9 ("ARM: dts: Move most of logicpd-som-lv-37xx-devkit.dts to logicpd-som-lv-baseboard.dtsi")
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Older versions of U-Boot would pinmux the whole board, but as
the bootloader got updated, it started to only pinmux the pins
it needed, and expected Linux to configure what it needed.
Unfortunately this caused an issue with the audio, because the
mcbsp2 pins were configured in the device tree, they were never
referenced by the driver. When U-Boot stopped muxing the audio
pins, the audio died.
This patch adds the references to the associate the pin controller
with the mcbsp2 driver which makes audio operate again.
Fixes: 739f85bba5ab ("ARM: dts: Move most of logicpd-torpedo-37xx-devkit to logicpd-torpedo-baseboard")
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The of_clk_get() function returns error pointers, it never returns NULL.
Fixes: 4ea3711aece4 ("ARM: OMAP2+: omap-iommu.c conversion to ti-sysc")
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 5.9:
- Fix QuadSPI-memory 'reg' for LS1021A and GPIO 'ranges' for i.MX7ULP
pinctrl.
- A couple of DTC warning fixes on imx6qdl-gw51xx and imx6q-prtwd2
boards.
- Add missing imx8mm-beacon-kit.dtb to dtbs-y for build coverage.
- Fix broken PWM settings on imx6q-logicpd board.
- Add missing syscon compatible to OCOTP device, so that access to UID
is possible.
- Fix a network regression on imx7d-zii-rmu2 due to a phy-mode mismatch.
* tag 'imx-fixes-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx7d-zii-rmu2: fix rgmii phy-mode for ksz9031 phy
ARM: dts: vfxxx: Add syscon compatible with OCOTP
ARM: dts: imx6q-logicpd: Fix broken PWM
arm64: dts: imx: Add missing imx8mm-beacon-kit.dtb to build
ARM: dts: imx6q-prtwd2: Remove unneeded i2c unit name
ARM: dts: imx6qdl-gw51xx: Remove unneeded #address-cells/#size-cells
ARM: dts: imx7ulp: Correct gpio ranges
ARM: dts: ls1021a: fix QuadSPI-memory reg range
Link: https://lore.kernel.org/r/20200824130359.GF12776@dragon
Signed-off-by: Olof Johansson <olof@lixom.net>
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Since commit bcf3440c6dd7 ("net: phy: micrel: add phy-mode support for the
KSZ9031 PHY") the networking is broken on the imx7d-zii-rmu2 board.
The end result is that network receive behaviour is marginal with lots of
RX CRC errors experienced and NFS frequently failing.
Quoting the explanation from Andrew Lunn in commit 0672d22a19244
("ARM: dts: imx: Fix the AR803X phy-mode"):
"The problem here is, all the DTs were broken since day 0. However,
because the PHY driver was also broken, nobody noticed and it
worked. Now that the PHY driver has been fixed, all the bugs in the
DTs now become an issue"
Fix it by switching to phy-mode = "rgmii-id".
Fixes: bcf3440c6dd7 ("net: phy: micrel: add phy-mode support for the KSZ9031 PHY")
Signed-off-by: Chris Healy <cphealy@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add syscon compatibility with Vybrid OCOTP node. This is required to
access the UID.
Fixes: fa8d20c8dbb77 ("ARM: dts: vfxxx: Add node corresponding to OCOTP")
Cc: stable@vger.kernel.org
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The DTC doesn't like the default PWM settings, because it's expecting
three cells. This patch reduces adds the extra entry of 0 to the PWM
reference.
Fixes: fa28d8212ede ("ARM: dts: imx: default to #pwm-cells = <3> in the SoC dtsi files")
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The imx8mm-beacon-kit.dtb was never added to dtbs-y and wasn't getting
built. Fix it.
Fixes: 593816fa2f35 ("arm64: dts: imx: Add Beacon i.MX8m-Mini development kit")
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The following dtc warning is seen when building with W=1:
arch/arm/boot/dts/imx6q-prtwd2.dts:33.8-43.4: Warning (unit_address_vs_reg): /i2c@4: node has a unit name, but no reg or ranges property
Remove the unneeded i2c unit name to fix the issue.
Fixes: 88010b8174ab ("ARM: dts: add Protonic WD2 board")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The following dtc warning is seen when building with W=1:
arch/arm/boot/dts/imx6qdl-gw51xx.dtsi:23.12-68.4: Warning (avoid_unnecessary_addr_size): /gpio-keys: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
Remove the unneeded #address-cells/#size-cells properties to fix the issue.
Fixes: 64bf0a0af18d ("ARM: dts: imx6qdl-gw: add Gateworks System Controller support")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Correct gpio ranges according to i.MX7ULP pinctrl driver:
gpio_ptc: ONLY pin 0~19 are available;
gpio_ptd: ONLY pin 0~11 are available;
gpio_pte: ONLY pin 0~15 are available;
gpio_ptf: ONLY pin 0~19 are available;
Fixes: 20434dc92c05 ("ARM: dts: imx: add common imx7ulp dtsi support")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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According to the Reference Manual, the correct size is 512 MiB.
Without this fix, probing the QSPI fails:
fsl-quadspi 1550000.spi: ioremap failed for resource
[mem 0x40000000-0x7fffffff]
fsl-quadspi 1550000.spi: Freescale QuadSPI probe failed
fsl-quadspi: probe of 1550000.spi failed with error -12
Fixes: 85f8ee78ab72 ("ARM: dts: ls1021a: Add support for QSPI with ls1021a SoC")
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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arm/fixes
arm64: soc: ZynqMP DT changes for v5.9
- Add node for PS-GTR transceivers
- Fix iommu node name to match dtschema
* tag 'zynqmp-dt-for-v5.9' of https://github.com/Xilinx/linux-xlnx:
arm64: dts: xilinx: Align IOMMU nodename with dtschema
arm64: dts: zynqmp: Add GTR transceivers
Signed-off-by: Olof Johansson <olof@lixom.net>
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Fix dtschema validator warnings like:
smmu@fd800000: $nodename:0: 'smmu@fd800000' does not match '^iommu@[0-9a-f]*'
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200629081744.13916-1-krzk@kernel.org
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Add a DT node for the PS-GTR transceivers.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/20200629120054.29338-4-laurent.pinchart@ideasonboard.com
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Enable the extcon driver for NXP PTN5150A chips (CC logic for USB Type-C
applications) present on some of i.MX8 evaluation boards (e.g. Variscite
Symphony board).
Link: https://lore.kernel.org/r/20200817065654.4419-2-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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USB OTG connections are pretty common for embedded and development
boards, for example to have networking or serial access to the device.
Build as a module the USB gadget configfs options so the defconfig can
be used in such development configurations.
Link: https://lore.kernel.org/r/20200817065654.4419-1-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Update the Integrator defconfig to the changes from the recent
kernel cycles and especially the v5.9-rc1 changes.
- Move options around as a result of Kconfig changes.
- Drop the ZBOOT_ROM* stuff that doesn't exist anymore.
- Select GPIO input and evdev as used by the pushbuttons
on the machine.
- Select CONFIG_DRM_DISPLAY_CONNECTOR=y, the
CONFIG_DRM_SIMPLE_BRIDGE was renamed when renaming the
driver, but the simple bridge requires another bridge,
the display connector bridge, in order to work, so this
is required to have graphics working properly in kernel
v5.9-rc1+
Link: https://lore.kernel.org/r/20200820085752.42994-1-linus.walleij@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Fixes the register address for the timer3 entry on Arria10.
Fixes: 475dc86d08de4 ("arm: dts: socfpga: Add a base DTSI for Altera's Arria10 SOC")
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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Pull kvm fixes from Paolo Bonzini:
"A bit on the bigger side, mostly due to me being on vacation, then
busy, then on parental leave, but there's nothing worrisome.
ARM:
- Multiple stolen time fixes, with a new capability to match x86
- Fix for hugetlbfs mappings when PUD and PMD are the same level
- Fix for hugetlbfs mappings when PTE mappings are enforced (dirty
logging, for example)
- Fix tracing output of 64bit values
x86:
- nSVM state restore fixes
- Async page fault fixes
- Lots of small fixes everywhere"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (25 commits)
KVM: emulator: more strict rsm checks.
KVM: nSVM: more strict SMM checks when returning to nested guest
SVM: nSVM: setup nested msr permission bitmap on nested state load
SVM: nSVM: correctly restore GIF on vmexit from nesting after migration
x86/kvm: don't forget to ACK async PF IRQ
x86/kvm: properly use DEFINE_IDTENTRY_SYSVEC() macro
KVM: VMX: Don't freeze guest when event delivery causes an APIC-access exit
KVM: SVM: avoid emulation with stale next_rip
KVM: x86: always allow writing '0' to MSR_KVM_ASYNC_PF_EN
KVM: SVM: Periodically schedule when unregistering regions on destroy
KVM: MIPS: Change the definition of kvm type
kvm x86/mmu: use KVM_REQ_MMU_SYNC to sync when needed
KVM: nVMX: Fix the update value of nested load IA32_PERF_GLOBAL_CTRL control
KVM: fix memory leak in kvm_io_bus_unregister_dev()
KVM: Check the allocation of pv cpu mask
KVM: nVMX: Update VMCS02 when L2 PAE PDPTE updates detected
KVM: arm64: Update page shift if stage 2 block mapping not supported
KVM: arm64: Fix address truncation in traces
KVM: arm64: Do not try to map PUDs when they are folded into PMD
arm64/x86: KVM: Introduce steal-time cap
...
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Don't ignore return values in rsm_load_state_64/32 to avoid
loading invalid state from SMM state area if it was tampered with
by the guest.
This is primarly intended to avoid letting guest set bits in EFER
(like EFER.SVME when nesting is disabled) by manipulating SMM save area.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827171145.374620-8-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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* check that guest is 64 bit guest, otherwise the SVM related fields
in the smm state area are not defined
* If the SMM area indicates that SMM interrupted a running guest,
check that EFER.SVME which is also saved in this area is set, otherwise
the guest might have tampered with SMM save area, and so indicate
emulation failure which should triple fault the guest.
* Check that that guest CPUID supports SVM (due to the same issue as above)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827162720.278690-4-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This code was missing and was forcing the L2 run with L1's msr
permission bitmap
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827162720.278690-3-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Currently code in svm_set_nested_state copies the current vmcb control
area to L1 control area (hsave->control), under assumption that
it mostly reflects the defaults that kvm choose, and later qemu
overrides these defaults with L2 state using standard KVM interfaces,
like KVM_SET_REGS.
However nested GIF (which is AMD specific thing) is by default is true,
and it is copied to hsave area as such.
This alone is not a big deal since on VMexit, GIF is always set to false,
regardless of what it was on VM entry. However in nested_svm_vmexit we
were first were setting GIF to false, but then we overwrite the control
fields with value from the hsave area. (including the nested GIF field
itself if GIF virtualization is enabled).
Now on normal vm entry this is not a problem, since GIF is usually false
prior to normal vm entry, and this is the value that copied to hsave,
and then restored, but this is not always the case when the nested state
is loaded as explained above.
To fix this issue, move svm_set_gif after we restore the L1 control
state in nested_svm_vmexit, so that even with wrong GIF in the
saved L1 control area, we still clear GIF as the spec says.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827162720.278690-2-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Merge commit 26d05b368a5c0 ("Merge branch 'kvm-async-pf-int' into HEAD")
tried to adapt the new interrupt based async PF mechanism to the newly
introduced IDTENTRY magic but unfortunately it missed the fact that
DEFINE_IDTENTRY_SYSVEC() doesn't call ack_APIC_irq() on its own and
all DEFINE_IDTENTRY_SYSVEC() users have to call it manually.
As the result all multi-CPU KVM guest hang on boot when
KVM_FEATURE_ASYNC_PF_INT is present. The breakage went unnoticed because no
KVM userspace (e.g. QEMU) currently set it (and thus async PF mechanism
is currently disabled) but we're about to change that.
Fixes: 26d05b368a5c0 ("Merge branch 'kvm-async-pf-int' into HEAD")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200908135350.355053-3-vkuznets@redhat.com>
Tested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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DEFINE_IDTENTRY_SYSVEC() already contains irqentry_enter()/
irqentry_exit().
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200908135350.355053-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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According to SDM 27.2.4, Event delivery causes an APIC-access VM exit.
Don't report internal error and freeze guest when event delivery causes
an APIC-access exit, it is handleable and the event will be re-injected
during the next vmentry.
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1597827327-25055-2-git-send-email-wanpengli@tencent.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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svm->next_rip is reset in svm_vcpu_run() only after calling
svm_exit_handlers_fastpath(), which will cause SVM's
skip_emulated_instruction() to write a stale RIP.
We can move svm_exit_handlers_fastpath towards the end of
svm_vcpu_run(). To align VMX with SVM, keep svm_complete_interrupts()
close as well.
Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Paul K. <kronenpj@kronenpj.dyndns.org>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
[Also move vmcb_mark_all_clean before any possible write to the VMCB.
- Paolo]
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Even without in-kernel LAPIC we should allow writing '0' to
MSR_KVM_ASYNC_PF_EN as we're not enabling the mechanism. In
particular, QEMU with 'kernel-irqchip=off' fails to start
a guest with
qemu-system-x86_64: error: failed to set MSR 0x4b564d02 to 0x0
Fixes: 9d3c447c72fb2 ("KVM: X86: Fix async pf caused null-ptr-deref")
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200911093147.484565-1-vkuznets@redhat.com>
[Actually commit the version proposed by Sean Christopherson. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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There may be many encrypted regions that need to be unregistered when a
SEV VM is destroyed. This can lead to soft lockups. For example, on a
host running 4.15:
watchdog: BUG: soft lockup - CPU#206 stuck for 11s! [t_virtual_machi:194348]
CPU: 206 PID: 194348 Comm: t_virtual_machi
RIP: 0010:free_unref_page_list+0x105/0x170
...
Call Trace:
[<0>] release_pages+0x159/0x3d0
[<0>] sev_unpin_memory+0x2c/0x50 [kvm_amd]
[<0>] __unregister_enc_region_locked+0x2f/0x70 [kvm_amd]
[<0>] svm_vm_destroy+0xa9/0x200 [kvm_amd]
[<0>] kvm_arch_destroy_vm+0x47/0x200
[<0>] kvm_put_kvm+0x1a8/0x2f0
[<0>] kvm_vm_release+0x25/0x30
[<0>] do_exit+0x335/0xc10
[<0>] do_group_exit+0x3f/0xa0
[<0>] get_signal+0x1bc/0x670
[<0>] do_signal+0x31/0x130
Although the CLFLUSH is no longer issued on every encrypted region to be
unregistered, there are no other changes that can prevent soft lockups for
very large SEV VMs in the latest kernel.
Periodically schedule if necessary. This still holds kvm->lock across the
resched, but since this only happens when the VM is destroyed this is
assumed to be acceptable.
Signed-off-by: David Rientjes <rientjes@google.com>
Message-Id: <alpine.DEB.2.23.453.2008251255240.2987727@chino.kir.corp.google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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MIPS defines two kvm types:
#define KVM_VM_MIPS_TE 0
#define KVM_VM_MIPS_VZ 1
In Documentation/virt/kvm/api.rst it is said that "You probably want to
use 0 as machine type", which implies that type 0 be the "automatic" or
"default" type. And, in user-space libvirt use the null-machine (with
type 0) to detect the kvm capability, which returns "KVM not supported"
on a VZ platform.
I try to fix it in QEMU but it is ugly:
https://lists.nongnu.org/archive/html/qemu-devel/2020-08/msg05629.html
And Thomas Huth suggests me to change the definition of kvm type:
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg03281.html
So I define like this:
#define KVM_VM_MIPS_AUTO 0
#define KVM_VM_MIPS_VZ 1
#define KVM_VM_MIPS_TE 2
Since VZ and TE cannot co-exists, using type 0 on a TE platform will
still return success (so old user-space tools have no problems on new
kernels); the advantage is that using type 0 on a VZ platform will not
return failure. So, the only problem is "new user-space tools use type
2 on old kernels", but if we treat this as a kernel bug, we can backport
this patch to old stable kernels.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <1599734031-28746-1-git-send-email-chenhc@lemote.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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When kvm_mmu_get_page() gets a page with unsynced children, the spt
pagetable is unsynchronized with the guest pagetable. But the
guest might not issue a "flush" operation on it when the pagetable
entry is changed from zero or other cases. The hypervisor has the
responsibility to synchronize the pagetables.
KVM behaved as above for many years, But commit 8c8560b83390
("KVM: x86/mmu: Use KVM_REQ_TLB_FLUSH_CURRENT for MMU specific flushes")
inadvertently included a line of code to change it without giving any
reason in the changelog. It is clear that the commit's intention was to
change KVM_REQ_TLB_FLUSH -> KVM_REQ_TLB_FLUSH_CURRENT, so we don't
needlessly flush other contexts; however, one of the hunks changed
a nearby KVM_REQ_MMU_SYNC instead. This patch changes it back.
Link: https://lore.kernel.org/lkml/20200320212833.3507-26-sean.j.christopherson@intel.com/
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Message-Id: <20200902135421.31158-1-jiangshanlai@gmail.com>
fixes: 8c8560b83390 ("KVM: x86/mmu: Use KVM_REQ_TLB_FLUSH_CURRENT for MMU specific flushes")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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A minor fix for the update of VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL field
in exit_ctls_high.
Fixes: 03a8871add95 ("KVM: nVMX: Expose load IA32_PERF_GLOBAL_CTRL
VM-{Entry,Exit} control")
Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20200828085622.8365-5-chenyi.qiang@intel.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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check the allocation of per-cpu __pv_cpu_mask. Initialize ops only when
successful.
Signed-off-by: Haiwei Li <lihaiwei@tencent.com>
Message-Id: <d59f05df-e6d3-3d31-a036-cc25a2b2f33f@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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When L2 uses PAE, L0 intercepts of L2 writes to CR0/CR3/CR4 call
load_pdptrs to read the possibly updated PDPTEs from the guest
physical address referenced by CR3. It loads them into
vcpu->arch.walk_mmu->pdptrs and sets VCPU_EXREG_PDPTR in
vcpu->arch.regs_dirty.
At the subsequent assumed reentry into L2, the mmu will call
vmx_load_mmu_pgd which calls ept_load_pdptrs. ept_load_pdptrs sees
VCPU_EXREG_PDPTR set in vcpu->arch.regs_dirty and loads
VMCS02.GUEST_PDPTRn from vcpu->arch.walk_mmu->pdptrs[]. This all works
if the L2 CRn write intercept always resumes L2.
The resume path calls vmx_check_nested_events which checks for
exceptions, MTF, and expired VMX preemption timers. If
vmx_check_nested_events finds any of these conditions pending it will
reflect the corresponding exit into L1. Live migration at this point
would also cause a missed immediate reentry into L2.
After L1 exits, vmx_vcpu_run calls vmx_register_cache_reset which
clears VCPU_EXREG_PDPTR in vcpu->arch.regs_dirty. When L2 next
resumes, ept_load_pdptrs finds VCPU_EXREG_PDPTR clear in
vcpu->arch.regs_dirty and does not load VMCS02.GUEST_PDPTRn from
vcpu->arch.walk_mmu->pdptrs[]. prepare_vmcs02 will then load
VMCS02.GUEST_PDPTRn from vmcs12->pdptr0/1/2/3 which contain the stale
values stored at last L2 exit. A repro of this bug showed L2 entering
triple fault immediately due to the bad VMCS02.GUEST_PDPTRn values.
When L2 is in PAE paging mode add a call to ept_load_pdptrs before
leaving L2. This will update VMCS02.GUEST_PDPTRn if they are dirty in
vcpu->arch.walk_mmu->pdptrs[].
Tested:
kvm-unit-tests with new directed test: vmx_mtf_pdpte_test.
Verified that test fails without the fix.
Also ran Google internal VMM with an Ubuntu 16.04 4.4.0-83 guest running a
custom hypervisor with a 32-bit Windows XP L2 guest using PAE. Prior to fix
would repro readily. Ran 14 simultaneous L2s for 140 iterations with no
failures.
Signed-off-by: Peter Shier <pshier@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Message-Id: <20200820230545.2411347-1-pshier@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for Linux 5.9, take #1
- Multiple stolen time fixes, with a new capability to match x86
- Fix for hugetlbfs mappings when PUD and PMD are the same level
- Fix for hugetlbfs mappings when PTE mappings are enforced
(dirty logging, for example)
- Fix tracing output of 64bit values
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Commit 196f878a7ac2e (" KVM: arm/arm64: Signal SIGBUS when stage2 discovers
hwpoison memory") modifies user_mem_abort() to send a SIGBUS signal when
the fault IPA maps to a hwpoisoned page. Commit 1559b7583ff6 ("KVM:
arm/arm64: Re-check VMA on detecting a poisoned page") changed
kvm_send_hwpoison_signal() to use the page shift instead of the VMA because
at that point the code had already released the mmap lock, which means
userspace could have modified the VMA.
If userspace uses hugetlbfs for the VM memory, user_mem_abort() tries to
map the guest fault IPA using block mappings in stage 2. That is not always
possible, if, for example, userspace uses dirty page logging for the VM.
Update the page shift appropriately in those cases when we downgrade the
stage 2 entry from a block mapping to a page.
Fixes: 1559b7583ff6 ("KVM: arm/arm64: Re-check VMA on detecting a poisoned page")
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Link: https://lore.kernel.org/r/20200901133357.52640-2-alexandru.elisei@arm.com
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