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2021-02-11KVM: x86/xen: Explicitly pad struct compat_vcpu_info to 64 bytesSean Christopherson
Add a 2 byte pad to struct compat_vcpu_info so that the sum size of its fields is actually 64 bytes. The effective size without the padding is also 64 bytes due to the compiler aligning evtchn_pending_sel to a 4-byte boundary, but depending on compiler alignment is subtle and unnecessary. Opportunistically replace spaces with tables in the other fields. Cc: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210210182609.435200-6-seanjc@google.com> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: selftests: Don't bother mapping GVA for Xen shinfo testSean Christopherson
Don't bother mapping the Xen shinfo pages into the guest, they don't need to be accessed using the GVAs and passing a define with "GPA" in the name to addr_gva2hpa() is confusing. Cc: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210210182609.435200-5-seanjc@google.com> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: selftests: Fix hex vs. decimal snafu in Xen testSean Christopherson
The Xen shinfo selftest uses '40' when setting the GPA of the vCPU info struct, but checks for the result at '0x40'. Arbitrarily use the hex version to resolve the bug. Fixes: 8d4e7e80838f ("KVM: x86: declare Xen HVM shared info capability and add test case") Cc: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210210182609.435200-4-seanjc@google.com> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: selftests: Fix size of memslots created by Xen testsSean Christopherson
For better or worse, the memslot APIs take the number of pages, not the size in bytes. The Xen tests need 2 pages, not 8192 pages. Fixes: 8d4e7e80838f ("KVM: x86: declare Xen HVM shared info capability and add test case") Cc: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210210182609.435200-3-seanjc@google.com> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: selftests: Ignore recently added Xen tests' build outputSean Christopherson
Add the new Xen test binaries to KVM selftest's .gitnore. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210210182609.435200-2-seanjc@google.com> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: selftests: Add missing header file needed by xAPIC IPI testsPeter Shier
Fixes: 678e90a349a4 ("KVM: selftests: Test IPI to halted vCPU in xAPIC while backing page moves") Cc: Andrew Jones <drjones@redhat.com> Cc: Jim Mattson <jmattson@google.com> Signed-off-by: Peter Shier <pshier@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210210011747.240913-1-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: selftests: Add operand to vmsave/vmload/vmrun in svm.cRicardo Koller
Building the KVM selftests with LLVM's integrated assembler fails with: $ CFLAGS=-fintegrated-as make -C tools/testing/selftests/kvm CC=clang lib/x86_64/svm.c:77:16: error: too few operands for instruction asm volatile ("vmsave\n\t" : : "a" (vmcb_gpa) : "memory"); ^ <inline asm>:1:2: note: instantiated into assembly here vmsave ^ lib/x86_64/svm.c:134:3: error: too few operands for instruction "vmload\n\t" ^ <inline asm>:1:2: note: instantiated into assembly here vmload ^ This is because LLVM IAS does not currently support calling vmsave, vmload, or vmload without an explicit %rax operand. Add an explicit operand to vmsave, vmload, and vmrum in svm.c. Fixing this was suggested by Sean Christopherson. Tested: building without this error in clang 11. The following patch (not queued yet) needs to be applied to solve the other remaining error: "selftests: kvm: remove reassignment of non-absolute variables". Suggested-by: Sean Christopherson <seanjc@google.com> Link: https://lore.kernel.org/kvm/X+Df2oQczVBmwEzi@google.com/ Reviewed-by: Jim Mattson <jmattson@google.com> Signed-off-by: Ricardo Koller <ricarkol@google.com> Message-Id: <20210210031719.769837-1-ricarkol@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: SVM: Make symbol 'svm_gp_erratum_intercept' staticWei Yongjun
The sparse tool complains as follows: arch/x86/kvm/svm/svm.c:204:6: warning: symbol 'svm_gp_erratum_intercept' was not declared. Should it be static? This symbol is not used outside of svm.c, so this commit marks it static. Fixes: 82a11e9c6fa2b ("KVM: SVM: Add emulation support for #GP triggered by SVM instructions") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Message-Id: <20210210075958.1096317-1-weiyongjun1@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11Merge tag 'kvm-ppc-next-5.12-1' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD PPC KVM update for 5.12 - Support for second data watchpoint on POWER10, from Ravi Bangoria - Remove some complex workarounds for buggy early versions of POWER9 - Guest entry/exit fixes from Nick Piggin and Fabiano Rosas
2021-02-11locking/arch: Move qrwlock.h include after qspinlock.hWaiman Long
include/asm-generic/qrwlock.h was trying to get arch_spin_is_locked via asm-generic/qspinlock.h. However, this does not work because architectures might be using queued rwlocks but not queued spinlocks (csky), or because they might be defining their own queued_* macros before including asm/qspinlock.h. To fix this, ensure that asm/spinlock.h always includes qrwlock.h after defining arch_spin_is_locked (either directly for csky, or via asm/qspinlock.h for other architectures). The only inclusion elsewhere is in kernel/locking/qrwlock.c. That one is really unnecessary because the file is only compiled in SMP configurations (config QUEUED_RWLOCKS depends on SMP) and in that case linux/spinlock.h already includes asm/qrwlock.h if needed, via asm/spinlock.h. Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Waiman Long <longman@redhat.com> Fixes: 26128cb6c7e6 ("locking/rwlocks: Add contention detection for rwlocks") Tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Ben Gardon <bgardon@google.com> [Add arch/sparc and kernel/locking parts per discussion with Waiman. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11staging: wfx: avoid defining array of flexible structMuhammad Usama Anjum
In this particular case, the struct element is already flexible struct. Thus struct element ie[] is ambiguous inside another struct. The members of struct element ie aren't being accessed in code anywhere. The data of u8 type is copied in it. So it has been changed to u8 ie[] to make the sparse happy and code simple. Warning from sparse: drivers/stagingwfx/hif_tx.c: note: in included file (through drivers/stagingwfx/data_tx.h, drivers/staging//wfx/wfx.h): drivers/staging//wfx/hif_api_cmd.h:103:26: warning: array of flexible structures Reviewed-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Signed-off-by: Muhammad Usama Anjum <musamaanjum@gmail.com> Link: https://lore.kernel.org/r/20210211105026.GA45458@LEGION Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-11usb: misc: usb3503: Fix logic in usb3503_init()Michal Simek
Based on https://lore.kernel.org/linux-arm-kernel/YCJv59g3Tq2haDSa@kroah.com/ initialization should fail if any registration fails. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/a8547f6fe698014df08cad3bcc9c5d9a7137d8b8.1612873935.git.michal.simek@xilinx.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-11dt-bindings: usb: usb-device: fix typo in required propertiesMans Rullgard
Fix typo in 'compatible' property name. Signed-off-by: Mans Rullgard <mans@mansr.com> Link: https://lore.kernel.org/r/20210209181240.28017-1-mans@mansr.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-11usb: Replace lkml.org links with loreKees Cook
As started by commit 05a5f51ca566 ("Documentation: Replace lkml.org links with lore"), replace lkml.org links with lore to better use a single source that's more likely to stay available long-term. Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210210235330.3292719-1-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-11Merge tag 'memory-controller-drv-5.12-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers Memory controller drivers for v5.12, part two Two minor cleanups and one fix for compile testing (when !CONFIG_OF). * tag 'memory-controller-drv-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: memory: tegra186-emc: Replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE memory: samsung: exynos5422-dmc: Correct function names in kerneldoc memory: ti-emif-pm: Drop of_match_ptr from of_device_id table Link: https://lore.kernel.org/r/20210211081829.7317-1-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-02-11dt-bindings: usb: dwc3: add description for rk3328Johan Jonker
Add description for "rockchip,rk3328-dwc3". Signed-off-by: Johan Jonker <jbx6244@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210209192350.7130-6-jbx6244@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-11dt-bindings: usb: convert rockchip,dwc3.txt to yamlJohan Jonker
In the past Rockchip dwc3 usb nodes were manually checked. With the conversion of snps,dwc3.yaml as common document we now can convert rockchip,dwc3.txt to yaml as well. Remove node wrapper. Added properties for rk3399 are: power-domains resets reset-names Signed-off-by: Johan Jonker <jbx6244@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210209192350.7130-1-jbx6244@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-11Merge tag 'samsung-soc-5.12' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/soc Samsung mach/soc changes for v5.12 Three fixes for S3C24xx: one for building with clang and two for warnings. * tag 'samsung-soc-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: s3c: irq-s3c24xx: staticize local functions ARM: s3c: irq-s3c24xx: include headers for missing declarations ARM: s3c: fix fiq for clang IAS Link: https://lore.kernel.org/r/20210211082254.7934-1-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-02-11MAINTAINERS: arm: samsung: include S3C headers in platform entryKrzysztof Kozlowski
Several S3C24xx/S3C64xx headers in include/linux are not caught by Samsung S3C/S5P/Exynos maintainer entry and might look like abandoned. Include them in "ARM/SAMSUNG S3C, S5P AND EXYNOS ARM ARCHITECTURES" entry. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20210210172303.335268-1-krzk@kernel.org' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-02-11Merge tag 'zynq-dt-for-v5.12-v2' of https://github.com/Xilinx/linux-xlnx ↵Arnd Bergmann
into arm/dt ARM: dts: Zynq DT changes for v5.12-v2 - Add Ebang board support - Add missing zturn boards in dt binding - And convert Zynq QSPI binding * tag 'zynq-dt-for-v5.12-v2' of https://github.com/Xilinx/linux-xlnx: dt-bindings: spi: zynq: Convert Zynq QSPI binding to yaml dt-bindings: arm: xilinx: Add missing Zturn boards ARM: dts: ebaz4205: add pinctrl entries for switches ARM: dts: add Ebang EBAZ4205 device tree dt-bindings: arm: add Ebang EBAZ4205 board dt-bindings: add ebang vendor prefix Link: https://lore.kernel.org/r/19e0e0c9-1bed-bba5-6c80-6903937b3d96@xilinx.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-02-11dt-bindings: spi: zynq: Convert Zynq QSPI binding to yamlMichal Simek
Convert spi-zynq-qspi.txt to yaml. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/4ece21a7e9691ed1e775fd6b0b4046b1562e44bd.1612951821.git.michal.simek@xilinx.com Reviewed-by: Rob Herring <robh@kernel.org>
2021-02-11Merge branch 'dt-for-v5.12' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/iwamatsu/linux-visconti into arm/dt * 'dt-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/iwamatsu/linux-visconti: arm: dts: visconti: Add DT support for Toshiba Visconti5 GPIO driver Link: https://lore.kernel.org/r/20210210173210.nnytfyrkkj6ylrtb@toshiba.co.jp Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-02-11Merge tag 'aspeed-5.12-devicetree' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed into arm/dt ASPEED device tree updates for 5.12 - New machines * Ampere Mt. Jade, an AST2500 BMC for an x86 server * IBM Everest, an AST2600 BMC for a Power10 server * Supermicro x11spi, an AST2500 BMC for an ARM server - AST2600 eMMC clock phase configuration - Proper clock support for LPC snoop - Misc updates to ethanolx, mowgli, ast2600evb, g220a, and rainier * tag 'aspeed-5.12-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed: ARM: dts: aspeed: ast2600evb: Add enable ehci and uhci ARM: dts: aspeed: mowgli: Add i2c rtc device ARM: dts: aspeed: amd-ethanolx: Enable secondary LPC snooping address ARM: dts: aspeed: Add Everest BMC machine ARM: dts: aspeed: inspur-fp5280g2: Add ipsps1 driver ARM: dts: aspeed: inspur-fp5280g2: Add GPIO line names ARM: dts: aspeed: Add Supermicro x11spi BMC machine ARM: dts: aspeed: g220a: Fix some gpio ARM: dts: aspeed: g220a: Enable ipmb ARM: dts: aspeed: rainier: Add eMMC clock phase compensation ARM: dts: aspeed: Add LCLK to lpc-snoop ARM: dts: aspeed: Add device tree for Ampere's Mt. Jade BMC Link: https://lore.kernel.org/r/CACPK8XfQgGch5bK3YD0La+CE2L5DxVa1MNw6m1fc40j0w7e9Tw@mail.gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-02-11staging: rtl8723bs: Replace one-element array with flexible-array member in ↵Gustavo A. R. Silva
struct ndis_80211_var_ie There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. Refactor the code according to the use of a flexible-array member in struct ndis_80211_var_ie, instead of a one-element array. Also, this helps with the ongoing efforts to enable -Warray-bounds and fix the following warnings: CC [M] drivers/staging/rtl8723bs/core/rtw_wlan_util.o In file included from ./drivers/staging/rtl8723bs/include/drv_types.h:20, from drivers/staging/rtl8723bs/core/rtw_wlan_util.c:9: drivers/staging/rtl8723bs/core/rtw_wlan_util.c: In function ‘HT_caps_handler’: ./drivers/staging/rtl8723bs/include/basic_types.h:108:11: warning: array subscript 1 is above array bounds of ‘u8[1]’ {aka ‘unsigned char[1]’} [-Warray-bounds] 108 | (EF1BYTE(*((u8 *)(__pstart)))) | ^ ./drivers/staging/rtl8723bs/include/basic_types.h:42:8: note: in definition of macro ‘EF1BYTE’ 42 | ((u8)(_val)) | ^~~~ ./drivers/staging/rtl8723bs/include/basic_types.h:127:4: note: in expansion of macro ‘LE_P1BYTE_TO_HOST_1BYTE’ 127 | (LE_P1BYTE_TO_HOST_1BYTE(__pstart) >> (__bitoffset)) & \ | ^~~~~~~~~~~~~~~~~~~~~~~ ./drivers/staging/rtl8723bs/include/rtw_ht.h:97:55: note: in expansion of macro ‘LE_BITS_TO_1BYTE’ 97 | #define GET_HT_CAPABILITY_ELE_RX_STBC(_pEleStart) LE_BITS_TO_1BYTE((_pEleStart)+1, 0, 2) | ^~~~~~~~~~~~~~~~ drivers/staging/rtl8723bs/core/rtw_wlan_util.c:1104:58: note: in expansion of macro ‘GET_HT_CAPABILITY_ELE_RX_STBC’ 1104 | if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX) && GET_HT_CAPABILITY_ELE_RX_STBC(pIE->data)) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/staging/rtl8723bs/core/rtw_wlan_util.c:1051:75: warning: array subscript 2 is above array bounds of ‘u8[1]’ {aka ‘unsigned char[1]’} [-Warray-bounds] 1051 | if ((pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x3) > (pIE->data[i] & 0x3)) | ~~~~~~~~~^~~ drivers/staging/rtl8723bs/core/rtw_wlan_util.c: In function ‘check_assoc_AP’: drivers/staging/rtl8723bs/core/rtw_wlan_util.c:1606:19: warning: array subscript 4 is above array bounds of ‘u8[1]’ {aka ‘unsigned char[1]’} [-Warray-bounds] 1606 | if (pIE->data[4] == 1) | ~~~~~~~~~^~~ drivers/staging/rtl8723bs/core/rtw_wlan_util.c:1609:20: warning: array subscript 5 is above array bounds of ‘u8[1]’ {aka ‘unsigned char[1]’} [-Warray-bounds] 1609 | if (pIE->data[5] & RT_HT_CAP_USE_92SE) | ~~~~~~~~~^~~ drivers/staging/rtl8723bs/core/rtw_wlan_util.c:1613:19: warning: array subscript 5 is above array bounds of ‘u8[1]’ {aka ‘unsigned char[1]’} [-Warray-bounds] 1613 | if (pIE->data[5] & RT_HT_CAP_USE_SOFTAP) | ~~~~~~~~~^~~ drivers/staging/rtl8723bs/core/rtw_wlan_util.c:1617:20: warning: array subscript 6 is above array bounds of ‘u8[1]’ {aka ‘unsigned char[1]’} [-Warray-bounds] 1617 | if (pIE->data[6] & RT_HT_CAP_USE_JAGUAR_BCUT) { | ~~~~~~~~~^~~ [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.9/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/109 Build-tested-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/lkml/602434b8.jc5DoXJ0bmHoxgIL%25lkp@intel.com/ Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20210210224937.GA11922@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-11staging: Replace lkml.org links with loreKees Cook
As started by commit 05a5f51ca566 ("Documentation: Replace lkml.org links with lore"), replace lkml.org links with lore to better use a single source that's more likely to stay available long-term. Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210210233231.1664896-1-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-11Staging: vt6655: Replace a camel case variable nameYujia Qiao
Replace camel case variable names with snake case in baseband.c. Signed-off-by: Yujia Qiao <rapiz@foxmail.com> Link: https://lore.kernel.org/r/tencent_21CFC58E6013D47A55691E4F4C6C4CF20706@qq.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-11ALSA: hda/hdmi: Drop bogus check at closing a streamTakashi Iwai
Some users reported the kernel WARNING with stack traces from hdmi_pcm_close(), and it's the line checking the per_cvt->assigned flag. This used to be a valid check in the past because the flag was turned on/off only at opening and closing a PCM stream. Meanwhile, since the introduction of the silent-stream mode, this flag may be turned on/off at the monitor connection/disconnection time, which isn't always associated with the PCM open/close. Hence this may lead to the inconsistent per_cvt->assigned flag at closing. As the check itself became almost useless and confuses users as if it were a serious problem, just drop the check. Fixes: b1a5039759cb ("ALSA: hda/hdmi: fix silent stream for first playback to DP") Cc: <stable@vger.kernel.org> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=210987 Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20210211083139.29531-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-02-11staging: gdm724x: Fix DMA from stackAmey Narkhede
Stack allocated buffers cannot be used for DMA on all architectures so allocate hci_packet buffer using kmalloc. Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Amey Narkhede <ameynarkhede03@gmail.com> Link: https://lore.kernel.org/r/20210211053819.34858-1-ameynarkhede03@gmail.com Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-11MAINTAINERS: replace non-matching patterns for loongson{2,3}Lukas Bulwahn
Commit ffe1f9356fbe ("MAINTAINERS: Add Loongson-2/Loongson-3 maintainers") adds quite generic file entries for drivers/*/*loongson{2,3}* and drivers/*/*/*loongson{2,3}* to be informed on changes to all loongson{2,3} files in drivers. However, only the pattern 'drivers/*/*loongson2*' matches to one file in the repository, i.e., drivers/cpufreq/loongson2_cpufreq.c; all other patterns have no file matches. Hence, ./scripts/get_maintainer.pl --self-test=patterns complains: warning: no file matches F: drivers/*/*/*loongson2* warning: no file matches F: drivers/*/*/*loongson3* warning: no file matches F: drivers/*/*loongson3* As in the last two and half years, no further files and drivers have showed up to match those patterns, just name the one file that matches explicitly and delete the others without a match. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-11MIPS: Make check condition for SDBBP consistent with EJTAG specTiezhu Yang
According to MIPS EJTAG Specification [1], a Debug Breakpoint exception occurs when an SDBBP instruction is executed, the CP0_DEBUG bit DBp indicates that a Debug Breakpoint exception occurred. When I read the original code, it looks a little confusing at first glance, just check bit DBp for SDBBP to make the code more readable, it will be much easier to understand. [1] http://www.t-es-t.hu/download/mips/md00047f.pdf Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-11mips: Replace lkml.org links with loreKees Cook
As started by commit 05a5f51ca566 ("Documentation: Replace lkml.org links with lore"), replace lkml.org links with lore to better use a single source that's more likely to stay available long-term. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-02-11iommu/hyperv: setup an IO-APIC IRQ remapping domain for root partitionWei Liu
Just like MSI/MSI-X, IO-APIC interrupts are remapped by Microsoft Hypervisor when Linux runs as the root partition. Implement an IRQ domain to handle mapping and unmapping of IO-APIC interrupts. Signed-off-by: Wei Liu <wei.liu@kernel.org> Acked-by: Joerg Roedel <joro@8bytes.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-17-wei.liu@kernel.org
2021-02-11x86/hyperv: implement an MSI domain for root partitionWei Liu
When Linux runs as the root partition on Microsoft Hypervisor, its interrupts are remapped. Linux will need to explicitly map and unmap interrupts for hardware. Implement an MSI domain to issue the correct hypercalls. And initialize this irq domain as the default MSI irq domain. Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com> Co-Developed-by: Sunil Muthuswamy <sunilmut@microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-16-wei.liu@kernel.org
2021-02-11asm-generic/hyperv: import data structures for mapping device interruptsWei Liu
Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com> Co-Developed-by: Sunil Muthuswamy <sunilmut@microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-15-wei.liu@kernel.org
2021-02-11asm-generic/hyperv: introduce hv_device_id and auxiliary structuresWei Liu
We will need to identify the device we want Microsoft Hypervisor to manipulate. Introduce the data structures for that purpose. They will be used in a later patch. Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com> Co-Developed-by: Sunil Muthuswamy <sunilmut@microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-14-wei.liu@kernel.org
2021-02-11asm-generic/hyperv: update hv_interrupt_entryWei Liu
We will soon use the same structure to handle IO-APIC interrupts as well. Introduce an enum to identify the source and a data structure for IO-APIC RTE. While at it, update pci-hyperv.c to use the enum. No functional change. Signed-off-by: Wei Liu <wei.liu@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-13-wei.liu@kernel.org
2021-02-11asm-generic/hyperv: update hv_msi_entryWei Liu
We will soon need to access fields inside the MSI address and MSI data fields. Introduce hv_msi_address_register and hv_msi_data_register. Fix up one user of hv_msi_entry in mshyperv.h. No functional change expected. Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-12-wei.liu@kernel.org
2021-02-11x86/hyperv: implement and use hv_smp_prepare_cpusWei Liu
Microsoft Hypervisor requires the root partition to make a few hypercalls to setup application processors before they can be used. Signed-off-by: Lillian Grassin-Drake <ligrassi@microsoft.com> Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com> Co-Developed-by: Lillian Grassin-Drake <ligrassi@microsoft.com> Co-Developed-by: Sunil Muthuswamy <sunilmut@microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-11-wei.liu@kernel.org
2021-02-11x86/hyperv: provide a bunch of helper functionsWei Liu
They are used to deposit pages into Microsoft Hypervisor and bring up logical and virtual processors. Signed-off-by: Lillian Grassin-Drake <ligrassi@microsoft.com> Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com> Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com> Co-Developed-by: Lillian Grassin-Drake <ligrassi@microsoft.com> Co-Developed-by: Sunil Muthuswamy <sunilmut@microsoft.com> Co-Developed-by: Nuno Das Neves <nunodasneves@linux.microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-10-wei.liu@kernel.org
2021-02-11ACPI / NUMA: add a stub function for node_to_pxm()Wei Liu
There is already a stub function for pxm_to_node but conversion to the other direction is missing. It will be used by Microsoft Hypervisor code later. Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Acked-by: "Rafael J. Wysocki" <rafael@kernel.org> Link: https://lore.kernel.org/r/20210203150435.27941-9-wei.liu@kernel.org
2021-02-11x86/hyperv: handling hypercall page setup for rootWei Liu
When Linux is running as the root partition, the hypercall page will have already been setup by Hyper-V. Copy the content over to the allocated page. Add checks to hv_suspend & co to bail early because they are not supported in this setup yet. Signed-off-by: Lillian Grassin-Drake <ligrassi@microsoft.com> Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com> Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com> Co-Developed-by: Lillian Grassin-Drake <ligrassi@microsoft.com> Co-Developed-by: Sunil Muthuswamy <sunilmut@microsoft.com> Co-Developed-by: Nuno Das Neves <nunodasneves@linux.microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-8-wei.liu@kernel.org
2021-02-11x86/hyperv: extract partition ID from Microsoft Hypervisor if necessaryWei Liu
We will need the partition ID for executing some hypercalls later. Signed-off-by: Lillian Grassin-Drake <ligrassi@microsoft.com> Co-Developed-by: Sunil Muthuswamy <sunilmut@microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-7-wei.liu@kernel.org
2021-02-11x86/hyperv: allocate output arg pages if requiredWei Liu
When Linux runs as the root partition, it will need to make hypercalls which return data from the hypervisor. Allocate pages for storing results when Linux runs as the root partition. Signed-off-by: Lillian Grassin-Drake <ligrassi@microsoft.com> Co-Developed-by: Lillian Grassin-Drake <ligrassi@microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-6-wei.liu@kernel.org
2021-02-11clocksource/hyperv: use MSR-based access if running as rootWei Liu
When Linux runs as the root partition, the setup required for TSC page is different. Luckily Linux also has access to the MSR based clocksource. We can just disable the TSC page clocksource if Linux is the root partition. Signed-off-by: Wei Liu <wei.liu@kernel.org> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-5-wei.liu@kernel.org
2021-02-11Drivers: hv: vmbus: skip VMBus initialization if Linux is rootWei Liu
There is no VMBus and the other infrastructures initialized in hv_acpi_init when Linux is running as the root partition. Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-4-wei.liu@kernel.org
2021-02-11x86/hyperv: detect if Linux is the root partitionWei Liu
For now we can use the privilege flag to check. Stash the value to be used later. Put in a bunch of defines for future use when we want to have more fine-grained detection. Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-3-wei.liu@kernel.org
2021-02-11asm-generic/hyperv: change HV_CPU_POWER_MANAGEMENT to HV_CPU_MANAGEMENTWei Liu
This makes the name match Hyper-V TLFS. Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-2-wei.liu@kernel.org
2021-02-11hv: hyperv.h: Replace one-element array with flexible-array in struct ↵Gustavo A. R. Silva
icmsg_negotiate There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. Refactor the code according to the use of a flexible-array member in struct icmsg_negotiate, instead of a one-element array. Also, this helps the ongoing efforts to enable -Warray-bounds and fix the following warnings: drivers/hv/channel_mgmt.c:315:23: warning: array subscript 1 is above array bounds of ‘struct ic_version[1]’ [-Warray-bounds] drivers/hv/channel_mgmt.c:316:23: warning: array subscript 1 is above array bounds of ‘struct ic_version[1]’ [-Warray-bounds] [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.9/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/109 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210201174334.GA171933@embeddedor Signed-off-by: Wei Liu <wei.liu@kernel.org>
2021-02-11hv_netvsc: Restrict configurations on isolated guestsAndrea Parri (Microsoft)
Restrict the NVSP protocol version(s) that will be negotiated with the host to be NVSP_PROTOCOL_VERSION_61 or greater if the guest is running isolated. Moreover, do not advertise the SR-IOV capability and ignore NVSP_MSG_4_TYPE_SEND_VF_ASSOCIATION messages in isolated guests, which are not supposed to support SR-IOV. This reduces the footprint of the code that will be exercised by Confidential VMs and hence the exposure to bugs and vulnerabilities. Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Acked-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210201144814.2701-5-parri.andrea@gmail.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
2021-02-11Drivers: hv: vmbus: Enforce 'VMBus version >= 5.2' on isolated guestsAndrea Parri (Microsoft)
Restrict the protocol version(s) that will be negotiated with the host to be 5.2 or greater if the guest is running isolated. This reduces the footprint of the code that will be exercised by Confidential VMs and hence the exposure to bugs and vulnerabilities. Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210201144814.2701-4-parri.andrea@gmail.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-15 12:25:16 +0000