- 19 May, 2022 29 commits
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Luca Miccio authored
When running as dom0less guest (HVM domain on ARM) the xenstore event channel is available at domain creation but the shared xenstore interface page only becomes available later on. In that case, wait for a notification on the xenstore event channel, then complete the xenstore initialization later, when the shared page is actually available. The xenstore page has few extra field. Add them to the shared struct. One of the field is "connection", when the connection is ready, it is zero. If the connection is not-zero, wait for a notification. Signed-off-by: Luca Miccio <lucmiccio@gmail.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20220513211938.719341-2-sstabellini@kernel.orgSigned-off-by: Juergen Gross <jgross@suse.com>
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Stefano Stabellini authored
Sync the xs_wire.h header file in Linux with the one in Xen. Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20220513211938.719341-1-sstabellini@kernel.orgSigned-off-by: Juergen Gross <jgross@suse.com>
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Maximilian Heyne authored
Since commit 4d65adfc ("x86: xen: insn: Decode Xen and KVM emulate-prefix signature"), objtool is able to correctly parse the prefixed instruction in xen_cpuid and emit correct orc unwind information. Hence, marking the function as STACKFRAME_NON_STANDARD is no longer needed. This commit is basically a revert of commit 983bb6d2 ("x86/xen: Mark xen_cpuid() stack frame as non-standard"). Signed-off-by: Maximilian Heyne <mheyne@amazon.de> Reviewed-by: Juergen Gross <jgross@suse.com> CC: Josh Poimboeuf <jpoimboe@kernel.org> Link: https://lore.kernel.org/r/20220517162425.100567-1-mheyne@amazon.deSigned-off-by: Juergen Gross <jgross@suse.com>
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SeongJae Park authored
SeongJae is currently listed as a contact point for some blk{back,front} features, but he will not work for XEN for a while. This commit therefore updates the contact point to his colleague, Maximilian, who is understanding the context and actively working with the features now. Signed-off-by: SeongJae Park <sj@kernel.org> Signed-off-by: Maximilian Heyne <mheyne@amazon.de> Acked-by: Roger Pau Monné <roger.pau@citrix.com> Link: https://lore.kernel.org/r/20220420072734.1692-1-sj@kernel.orgSigned-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
There is no external user of xenbus_grant_ring() left, so merge it into the only caller xenbus_setup_ring(). Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Simplify sndfront's ring creation and removal via xenbus_setup_ring() and xenbus_teardown_ring(). Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Tested-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # Arm64 only Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Simplify xen-hcd's ring creation and removal via xenbus_setup_ring() and xenbus_teardown_ring(). Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Simplify scsifront's ring creation and removal via xenbus_setup_ring() and xenbus_teardown_ring(). Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Simplify pcifront's shared page creation and removal via xenbus_setup_ring() and xenbus_teardown_ring(). Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Simplify drmfront's ring creation and removal via xenbus_setup_ring() and xenbus_teardown_ring(). Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Tested-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # Arm64 only Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Simplify tpmfront's ring creation and removal via xenbus_setup_ring() and xenbus_teardown_ring(), which are provided exactly for the use pattern as seen in this driver. Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Simplify netfront's ring creation and removal via xenbus_setup_ring() and xenbus_teardown_ring(). Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Simplify blkfront's ring creation and removal via xenbus_setup_ring() and xenbus_teardown_ring(). Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Most PV device frontends share very similar code for setting up shared ring buffers: - allocate page(s) - init the ring admin data - give the backend access to the ring via grants Tearing down the ring requires similar actions in all frontends again: - remove grants - free the page(s) Provide service functions xenbus_setup_ring() and xenbus_teardown_ring() for that purpose. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Update include/xen/interface/io/ring.h to its newest version. Switch the two improper use cases of RING_HAS_UNCONSUMED_RESPONSES() to XEN_RING_NR_UNCONSUMED_RESPONSES() in order to avoid the nasty XEN_RING_HAS_UNCONSUMED_IS_BOOL #define. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Instead of using a private macro for an invalid grant reference use the common one. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Tested-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # Arm64 only Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Instead of using a private macro for an invalid grant reference use the common one. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Instead of using a private macro for an invalid grant reference use the common one. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Tested-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # Arm64 only Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Instead of using a private macro for an invalid grant reference use the common one. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Tested-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # Arm64 only Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Instead of using a private macro for an invalid grant reference use the common one. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
GRANT_INVALID_REF isn't used in scsifront, so remove it. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Instead of using a private macro for an invalid grant reference use the common one. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Instead of using a private macro for an invalid grant reference use the common one. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Make sure a reserved grant is never put on the free list, as this could cause hard to debug errors. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Update include/xen/interface/grant_table.h to its newest version. This allows to drop some private definitions in grant-table.c and include/xen/grant_table.h. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Instead of relying on a well behaved PV scsi backend verify all meta data received from the backend and avoid multiple reads of the same data from the shared ring page. In case any illegal data from the backend is detected switch the PV device to a new "error" state and deactivate it for further use. Use the "lateeoi" variant for the event channel in order to avoid event storms blocking the guest. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20220428075323.12853-5-jgross@suse.comSigned-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Add a translation layer for the command result values. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20220428075323.12853-4-jgross@suse.comSigned-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Instead of using the kernel's values for the result of PV scsi operations use the values of the interface definition. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20220428075323.12853-3-jgross@suse.comSigned-off-by: Juergen Gross <jgross@suse.com>
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Juergen Gross authored
Update include/xen/interface/io/vscsiif.h to its newest version. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20220428075323.12853-2-jgross@suse.comSigned-off-by: Juergen Gross <jgross@suse.com>
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- 16 May, 2022 1 commit
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Linus Torvalds authored
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- 15 May, 2022 8 commits
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Linus Torvalds authored
Merge tag 'driver-core-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here is one fix, and three documentation updates for 5.18-rc7. The fix is for the firmware loader which resolves a long-reported problem where the credentials of the firmware loader could be set to a userspace process without enough permissions to actually load the firmware image. Many Android vendors have been reporting this for quite some time. The documentation updates are for the embargoed-hardware-issues.rst file to add a new entry, change an existing one, and sort the list to make changes easier in the future. All of these have been in linux-next for a while with no reported issues" * tag 'driver-core-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: Documentation/process: Update ARM contact for embargoed hardware issues Documentation/process: Add embargoed HW contact for Ampere Computing Documentation/process: Make groups alphabetical and use tabs consistently firmware_loader: use kernel credentials when reading firmware
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc driver fixes from Greg KH: "Here are two small driver fixes for 5.18-rc7 that resolve reported problems: - slimbus driver irq bugfix - interconnect sync state bugfix Both of these have been in linux-next with no reported problems" * tag 'char-misc-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: slimbus: qcom: Fix IRQ check in qcom_slim_probe interconnect: Restore sync state by ignoring ipa-virt in provider count
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial driver fixes from Greg KH: "Here are some small tty n_gsm and serial driver fixes for 5.18-rc7 that resolve reported problems. They include: - n_gsm fixes for reported issues - 8250_mtk driver fixes for some platforms - fsl_lpuart driver fix for reported problem. - digicolor driver fix for reported problem. All have been in linux-next for a while with no reported problems" * tag 'tty-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: fsl_lpuart: Don't enable interrupts too early tty: n_gsm: fix invalid gsmtty_write_room() result tty: n_gsm: fix mux activation issues in gsm_config() tty: n_gsm: fix buffer over-read in gsm_dlci_data() serial: 8250_mtk: Fix register address for XON/XOFF character serial: 8250_mtk: Make sure to select the right FEATURE_SEL serial: 8250_mtk: Fix UART_EFR register address tty/serial: digicolor: fix possible null-ptr-deref in digicolor_uart_probe()
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are some small fixes for reported issues with some USB drivers. They include: - xhci fixes for xhci-mtk platform driver - typec driver fixes for reported problems. - cdc-wdm read-stuck fix - gadget driver fix for reported race condition - new usb-serial driver ids All of these have been in linux-next with no reported problems" * tag 'usb-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: xhci-mtk: remove bandwidth budget table usb: xhci-mtk: fix fs isoc's transfer error usb: gadget: fix race when gadget driver register via ioctl usb: typec: tcpci_mt6360: Update for BMC PHY setting usb: gadget: uvc: allow for application to cleanly shutdown usb: typec: tcpci: Don't skip cleanup in .remove() on error usb: cdc-wdm: fix reading stuck on device close USB: serial: qcserial: add support for Sierra Wireless EM7590 USB: serial: option: add Fibocom MA510 modem USB: serial: option: add Fibocom L610 modem USB: serial: pl2303: add device id for HP LM930 Display
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fix from Michael Ellerman: - Fix KVM PR on 32-bit, which was broken by some MMU code refactoring. Thanks to: Alexander Graf, and Matt Evans. * tag 'powerpc-5.18-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: KVM: PPC: Book3S PR: Enable MSR_DR for switch_mmu_context()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fix from Thomas Gleixner: "A single fix for the handling of unpopulated sub-pmd spaces. The copy & pasta from the corresponding s390 code screwed up the address calculation for marking the sub-pmd ranges via memset by omitting the ALIGN_DOWN() to calculate the proper start address. It's a mystery why this code is not generic and shared because there is nothing architecture specific in there, but that's too intrusive for a backportable fix" * tag 'x86-urgent-2022-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Fix marking of unused sub-pmd ranges
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fix from Thomas Gleixner: "The recent expansion of the sched switch tracepoint inserted a new argument in the middle of the arguments. This reordering broke BPF programs which relied on the old argument list. While tracepoints are not considered stable ABI, it's not trivial to make BPF cope with such a change, but it's being worked on. For now restore the original argument order and move the new argument to the end of the argument list" * tag 'sched-urgent-2022-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/tracing: Append prev_state to tp args instead
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fix from Thomas Gleixner: "A single fix for a recent (introduced in 5.16) regression in the core interrupt code. The consolidation of the interrupt handler invocation code added an unconditional warning when generic_handle_domain_irq() is invoked from outside hard interrupt context. That's overbroad as the requirement for invoking these handlers in hard interrupt context is only required for certain interrupt types. The subsequently called code already contains a warning which triggers conditionally for interrupt chips which indicate this requirement in their properties. Remove the overbroad one" * tag 'irq-urgent-2022-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq: Remove WARN_ON_ONCE() in generic_handle_domain_irq()
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- 14 May, 2022 1 commit
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Linus Torvalds authored
Merge tag 'perf-tools-fixes-for-v5.18-2022-05-14' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools fixes from Arnaldo Carvalho de Melo: - Fix two NDEBUG warnings in 'perf bench numa' - Fix ARM coresight `perf test` failure - Sync linux/kvm.h with the kernel sources - Add James and Mike as Arm64 performance events reviewers * tag 'perf-tools-fixes-for-v5.18-2022-05-14' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: MAINTAINERS: Add James and Mike as Arm64 performance events reviewers tools headers UAPI: Sync linux/kvm.h with the kernel sources perf tests: Fix coresight `perf test` failure. perf bench: Fix two numa NDEBUG warnings
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- 13 May, 2022 1 commit
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git://anongit.freedesktop.org/drm/drmLinus Torvalds authored
Pull more drm fixes from Dave Airlie: "Turns out I was right, some fixes hadn't made it to me yet. The vmwgfx ones also popped up later, but all seem like bad enough things to fix. The dma-buf, vc4 and nouveau ones are all pretty small. The fbdev fixes are a bit more complicated: a fix to cleanup fbdev devices properly, uncovered some use-after-free bugs in existing drivers. Then the fix for those bugs wasn't correct. This reverts that fix, and puts the proper fixes in place in the drivers to avoid the use-after-frees. This has had a fair number of eyes on it at this stage, and I'm confident enough that it puts things in the right place, and is less dangerous than reverting our way out of the initial change at this stage. fbdev: - revert NULL deref fix that turned into a use-after-free - prevent use-after-free in fbdev - efifb/simplefb/vesafb: fix cleanup paths to avoid use-after-frees dma-buf: - fix panic in stats setup vc4: - fix hdmi build nouveau: - tegra iommu present fix - fix leak in backlight name vmwgfx: - Black screen due to fences using FIFO checks on SVGA3 - Random black screens on boot due to uninitialized drm_mode_fb_cmd2 - Hangs on SVGA3 due to command buffers being used with gbobjects" * tag 'drm-fixes-2022-05-14' of git://anongit.freedesktop.org/drm/drm: drm/vmwgfx: Disable command buffers on svga3 without gbobjects drm/vmwgfx: Initialize drm_mode_fb_cmd2 drm/vmwgfx: Fix fencing on SVGAv3 drm/vc4: hdmi: Fix build error for implicit function declaration dma-buf: call dma_buf_stats_setup after dmabuf is in valid list fbdev: efifb: Fix a use-after-free due early fb_info cleanup drm/nouveau: Fix a potential theorical leak in nouveau_get_backlight_name() drm/nouveau/tegra: Stop using iommu_present() fbdev: vesafb: Cleanup fb_info in .fb_destroy rather than .remove fbdev: efifb: Cleanup fb_info in .fb_destroy rather than .remove fbdev: simplefb: Cleanup fb_info in .fb_destroy rather than .remove fbdev: Prevent possible use-after-free in fb_release() Revert "fbdev: Make fb_release() return -ENODEV if fbdev was unregistered"
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