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2021-06-10iommu/vt-d: Remove unnecessary bracesParav Pandit1-2/+1
No need for braces for single line statement under if() block. Signed-off-by: Parav Pandit <parav@nvidia.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210530075053.264218-1-parav@nvidia.com Link: https://lore.kernel.org/r/20210610020115.1637656-22-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Removed unused iommu_count in dmar domainParav Pandit2-9/+3
DMAR domain uses per DMAR refcount. It is indexed by iommu seq_id. Older iommu_count is only incremented and decremented but no decisions are taken based on this refcount. This is not of much use. Hence, remove iommu_count and further simplify domain_detach_iommu() by returning void. Signed-off-by: Parav Pandit <parav@nvidia.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210530075053.264218-1-parav@nvidia.com Link: https://lore.kernel.org/r/20210610020115.1637656-21-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Use bitfields for DMAR capabilitiesParav Pandit2-13/+13
IOTLB device presence, iommu coherency and snooping are boolean capabilities. Use them as bits and keep them adjacent. Structure layout before the reorg. $ pahole -C dmar_domain drivers/iommu/intel/dmar.o struct dmar_domain { int nid; /* 0 4 */ unsigned int iommu_refcnt[128]; /* 4 512 */ /* --- cacheline 8 boundary (512 bytes) was 4 bytes ago --- */ u16 iommu_did[128]; /* 516 256 */ /* --- cacheline 12 boundary (768 bytes) was 4 bytes ago --- */ bool has_iotlb_device; /* 772 1 */ /* XXX 3 bytes hole, try to pack */ struct list_head devices; /* 776 16 */ struct list_head subdevices; /* 792 16 */ struct iova_domain iovad __attribute__((__aligned__(8))); /* 808 2320 */ /* --- cacheline 48 boundary (3072 bytes) was 56 bytes ago --- */ struct dma_pte * pgd; /* 3128 8 */ /* --- cacheline 49 boundary (3136 bytes) --- */ int gaw; /* 3136 4 */ int agaw; /* 3140 4 */ int flags; /* 3144 4 */ int iommu_coherency; /* 3148 4 */ int iommu_snooping; /* 3152 4 */ int iommu_count; /* 3156 4 */ int iommu_superpage; /* 3160 4 */ /* XXX 4 bytes hole, try to pack */ u64 max_addr; /* 3168 8 */ u32 default_pasid; /* 3176 4 */ /* XXX 4 bytes hole, try to pack */ struct iommu_domain domain; /* 3184 72 */ /* size: 3256, cachelines: 51, members: 18 */ /* sum members: 3245, holes: 3, sum holes: 11 */ /* forced alignments: 1 */ /* last cacheline: 56 bytes */ } __attribute__((__aligned__(8))); After arranging it for natural padding and to make flags as u8 bits, it saves 8 bytes for the struct. struct dmar_domain { int nid; /* 0 4 */ unsigned int iommu_refcnt[128]; /* 4 512 */ /* --- cacheline 8 boundary (512 bytes) was 4 bytes ago --- */ u16 iommu_did[128]; /* 516 256 */ /* --- cacheline 12 boundary (768 bytes) was 4 bytes ago --- */ u8 has_iotlb_device:1; /* 772: 0 1 */ u8 iommu_coherency:1; /* 772: 1 1 */ u8 iommu_snooping:1; /* 772: 2 1 */ /* XXX 5 bits hole, try to pack */ /* XXX 3 bytes hole, try to pack */ struct list_head devices; /* 776 16 */ struct list_head subdevices; /* 792 16 */ struct iova_domain iovad __attribute__((__aligned__(8))); /* 808 2320 */ /* --- cacheline 48 boundary (3072 bytes) was 56 bytes ago --- */ struct dma_pte * pgd; /* 3128 8 */ /* --- cacheline 49 boundary (3136 bytes) --- */ int gaw; /* 3136 4 */ int agaw; /* 3140 4 */ int flags; /* 3144 4 */ int iommu_count; /* 3148 4 */ int iommu_superpage; /* 3152 4 */ /* XXX 4 bytes hole, try to pack */ u64 max_addr; /* 3160 8 */ u32 default_pasid; /* 3168 4 */ /* XXX 4 bytes hole, try to pack */ struct iommu_domain domain; /* 3176 72 */ /* size: 3248, cachelines: 51, members: 18 */ /* sum members: 3236, holes: 3, sum holes: 11 */ /* sum bitfield members: 3 bits, bit holes: 1, sum bit holes: 5 bits */ /* forced alignments: 1 */ /* last cacheline: 48 bytes */ } __attribute__((__aligned__(8))); Signed-off-by: Parav Pandit <parav@nvidia.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210530075053.264218-1-parav@nvidia.com Link: https://lore.kernel.org/r/20210610020115.1637656-20-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Use DEVICE_ATTR_RO macroYueHaibing1-24/+18
Use DEVICE_ATTR_RO() helper instead of plain DEVICE_ATTR(), which makes the code a bit shorter and easier to read. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210528130229.22108-1-yuehaibing@huawei.com Link: https://lore.kernel.org/r/20210610020115.1637656-19-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Fix out-bounds-warning in intel/svm.cGustavo A. R. Silva1-10/+16
Replace a couple of calls to memcpy() with simple assignments in order to fix the following out-of-bounds warning: drivers/iommu/intel/svm.c:1198:4: warning: 'memcpy' offset [25, 32] from the object at 'desc' is out of the bounds of referenced subobject 'qw2' with type 'long long unsigned int' at offset 16 [-Warray-bounds] The problem is that the original code is trying to copy data into a couple of struct members adjacent to each other in a single call to memcpy(). This causes a legitimate compiler warning because memcpy() overruns the length of &desc.qw2 and &resp.qw2, respectively. This helps with the ongoing efforts to globally enable -Warray-bounds and get us closer to being able to tighten the FORTIFY_SOURCE routines on memcpy(). Link: https://github.com/KSPP/linux/issues/109 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210414201403.GA392764@embeddedor Link: https://lore.kernel.org/r/20210610020115.1637656-18-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Add PRQ handling latency samplingLu Baolu1-3/+13
The execution time for page fault request handling is performance critical and needs to be monitored. This adds code to sample the execution time of page fault request handling. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210520031531.712333-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-17-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Add cache invalidation latency samplingLu Baolu1-0/+31
Queued invalidation execution time is performance critical and needs to be monitored. This adds code to sample the execution time of IOTLB/ devTLB/ICE cache invalidation. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210520031531.712333-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-16-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Expose latency monitor data through debugfsLu Baolu2-0/+112
A debugfs interface /sys/kernel/debug/iommu/intel/dmar_perf_latency is created to control and show counts of execution time ranges for various types per DMAR. The interface may help debug any potential performance issue. By default, the interface is disabled. Possible write value of /sys/kernel/debug/iommu/intel/dmar_perf_latency 0 - disable sampling all latency data 1 - enable sampling IOTLB invalidation latency data 2 - enable sampling devTLB invalidation latency data 3 - enable sampling intr entry cache invalidation latency data 4 - enable sampling prq handling latency data Read /sys/kernel/debug/iommu/intel/dmar_perf_latency gives a snapshot of sampling result of all enabled monitors. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210520031531.712333-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-15-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Add common code for dmar latency performance monitorsLu Baolu5-0/+244
The execution time of some operations is very performance critical, such as cache invalidation and PRQ processing time. This adds some common code to monitor the execution time range of those operations. The interfaces include enabling/disabling, checking status, updating sampling data and providing a common string format for users. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210520031531.712333-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-14-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Add prq_report trace eventLu Baolu3-0/+73
This adds a new trace event to track the page fault request report. This event will provide almost all information defined in a page request descriptor. A sample output: | prq_report: dmar0/0000:00:0a.0 seq# 1: rid=0x50 addr=0x559ef6f97 r---- pasid=0x2 index=0x1 | prq_report: dmar0/0000:00:0a.0 seq# 2: rid=0x50 addr=0x559ef6f9c rw--l pasid=0x2 index=0x1 | prq_report: dmar0/0000:00:0a.0 seq# 3: rid=0x50 addr=0x559ef6f98 r---- pasid=0x2 index=0x1 | prq_report: dmar0/0000:00:0a.0 seq# 4: rid=0x50 addr=0x559ef6f9d rw--l pasid=0x2 index=0x1 | prq_report: dmar0/0000:00:0a.0 seq# 5: rid=0x50 addr=0x559ef6f99 r---- pasid=0x2 index=0x1 | prq_report: dmar0/0000:00:0a.0 seq# 6: rid=0x50 addr=0x559ef6f9e rw--l pasid=0x2 index=0x1 | prq_report: dmar0/0000:00:0a.0 seq# 7: rid=0x50 addr=0x559ef6f9a r---- pasid=0x2 index=0x1 | prq_report: dmar0/0000:00:0a.0 seq# 8: rid=0x50 addr=0x559ef6f9f rw--l pasid=0x2 index=0x1 This will be helpful for I/O page fault related debugging. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210520031531.712333-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-13-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Report prq to io-pgfault frameworkLu Baolu2-81/+17
Let the IO page fault requests get handled through the io-pgfault framework. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210520031531.712333-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-12-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Allocate/register iopf queue for sva devicesLu Baolu3-26/+79
This allocates and registers the iopf queue infrastructure for devices which want to support IO page fault for SVA. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210520031531.712333-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-11-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Refactor prq_event_thread()Lu Baolu1-103/+136
Refactor prq_event_thread() by moving handling single prq event out of the main loop. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210520031531.712333-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-10-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Use common helper to lookup svm devicesLu Baolu1-28/+40
It's common to iterate the svm device list and find a matched device. Add common helpers to do this and consolidate the code. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210520031531.712333-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-9-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Use iommu_sva_alloc(free)_pasid() helpersLu Baolu4-163/+120
Align the pasid alloc/free code with the generic helpers defined in the iommu core. This also refactored the SVA binding code to improve the readability. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210520031531.712333-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-8-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Add pasid private data helpersLu Baolu1-21/+41
We are about to use iommu_sva_alloc/free_pasid() helpers in iommu core. That means the pasid life cycle will be managed by iommu core. Use a local array to save the per pasid private data instead of attaching it the real pasid. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210520031531.712333-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-7-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Support asynchronous IOMMU nested capabilitiesLu Baolu1-1/+8
Current VT-d implementation supports nested translation only if all underlying IOMMUs support the nested capability. This is unnecessary as the upper layer is allowed to create different containers and set them with different type of iommu backend. The IOMMU driver needs to guarantee that devices attached to a nested mode iommu_domain should support nested capabilility. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210517065701.5078-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-6-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Select PCI_ATS explicitlyLu Baolu1-0/+1
The Intel VT-d implementation supports device TLB management. Select PCI_ATS explicitly so that the pci_ats helpers are always available. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20210512065313.3441309-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-5-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Tweak the description of a DMA faultLu Baolu1-8/+15
The Intel IOMMU driver reports the DMA fault reason in a decimal number while the VT-d specification uses a hexadecimal one. It's inconvenient that users need to covert them everytime before consulting the spec. Let's use hexadecimal number for a DMA fault reason. The fault message uses 0xffffffff as PASID for DMA requests w/o PASID. This is confusing. Tweak this by adding "NO_PASID" explicitly. Reviewed-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210517065425.4953-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20210610020115.1637656-4-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Fix kernel-doc syntax in file headerAditya Srivastava1-1/+1
The opening comment mark '/**' is used for highlighting the beginning of kernel-doc comments. The header for drivers/iommu/intel/pasid.c follows this syntax, but the content inside does not comply with kernel-doc. This line was probably not meant for kernel-doc parsing, but is parsed due to the presence of kernel-doc like comment syntax(i.e, '/**'), which causes unexpected warnings from kernel-doc: warning: Function parameter or member 'fmt' not described in 'pr_fmt' Provide a simple fix by replacing this occurrence with general comment format, i.e. '/*', to prevent kernel-doc from parsing it. Signed-off-by: Aditya Srivastava <yashsri421@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210523143245.19040-1-yashsri421@gmail.com Link: https://lore.kernel.org/r/20210610020115.1637656-3-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-10iommu/vt-d: Remove redundant assignment to variable agawColin Ian King1-1/+1
The variable agaw is initialized with a value that is never read and it is being updated later with a new value as a counter in a for-loop. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20210416171826.64091-1-colin.king@canonical.com Link: https://lore.kernel.org/r/20210610020115.1637656-2-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-05-31Linux 5.13-rc4v5.13-rc4Linus Torvalds1-1/+1
2021-05-30Merge branch 'i2c/for-current' of ↵Linus Torvalds22-29/+142
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "This is a bit larger than usual at rc4 time. The reason is due to Lee's work of fixing newly reported build warnings. The rest is fixes as usual" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (22 commits) MAINTAINERS: adjust to removing i2c designware platform data i2c: s3c2410: fix possible NULL pointer deref on read message after write i2c: mediatek: Disable i2c start_en and clear intr_stat brfore reset i2c: i801: Don't generate an interrupt on bus reset i2c: mpc: implement erratum A-004447 workaround powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 i2c controllers powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers dt-bindings: i2c: mpc: Add fsl,i2c-erratum-a004447 flag i2c: busses: i2c-stm32f4: Remove incorrectly placed ' ' from function name i2c: busses: i2c-st: Fix copy/paste function misnaming issues i2c: busses: i2c-pnx: Provide descriptions for 'alg_data' data structure i2c: busses: i2c-ocores: Place the expected function names into the documentation headers i2c: busses: i2c-eg20t: Fix 'bad line' issue and provide description for 'msgs' param i2c: busses: i2c-designware-master: Fix misnaming of 'i2c_dw_init_master()' i2c: busses: i2c-cadence: Fix incorrectly documented 'enum cdns_i2c_slave_mode' i2c: busses: i2c-ali1563: File headers are not good candidates for kernel-doc i2c: muxes: i2c-arb-gpio-challenge: Demote non-conformant kernel-doc headers i2c: busses: i2c-nomadik: Fix formatting issue pertaining to 'timeout' i2c: sh_mobile: Use new clock calculation formulas for RZ/G2E i2c: I2C_HISI should depend on ACPI ...
2021-05-30Merge tag 'seccomp-fixes-v5.13-rc4' of ↵Linus Torvalds2-22/+24
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp fixes from Kees Cook: "This fixes a hard-to-hit race condition in the addfd user_notif feature of seccomp, visible since v5.9. And a small documentation fix" * tag 'seccomp-fixes-v5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: seccomp: Refactor notification handler to prepare for new semantics Documentation: seccomp: Fix user notification documentation
2021-05-30Merge tag 'riscv-for-linus-5.13-rc4' of ↵Linus Torvalds5-14/+18
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: "A handful of RISC-V related fixes: - avoid errors when the stack tracing code is tracing itself. - resurrect the memtest= kernel command line argument on RISC-V, which was briefly enabled during the merge window before a refactoring disabled it. - build fix and some warning cleanups" * tag 'riscv-for-linus-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: kexec: Fix W=1 build warnings riscv: kprobes: Fix build error when MMU=n riscv: Select ARCH_USE_MEMTEST riscv: stacktrace: fix the riscv stacktrace when CONFIG_FRAME_POINTER enabled
2021-05-30Merge tag 'xfs-5.13-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds8-86/+140
Pull xfs fixes from Darrick Wong: "This week's pile mitigates some decades-old problems in how extent size hints interact with realtime volumes, fixes some failures in online shrink, and fixes a problem where directory and symlink shrinking on extremely fragmented filesystems could fail. The most user-notable change here is to point users at our (new) IRC channel on OFTC. Freedom isn't free, it costs folks like you and me; and if you don't kowtow, they'll expel everyone and take over your channel. (Ok, ok, that didn't fit the song lyrics...) Summary: - Fix a bug where unmapping operations end earlier than expected, which can cause chaos on multi-block directory and symlink shrink operations. - Fix an erroneous assert that can trigger if we try to transition a bmap structure from btree format to extents format with zero extents. This was exposed by xfs/538" * tag 'xfs-5.13-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: bunmapi has unnecessary AG lock ordering issues xfs: btree format inode forks can have zero extents xfs: add new IRC channel to MAINTAINERS xfs: validate extsz hints against rt extent size when rtinherit is set xfs: standardize extent size hint validation xfs: check free AG space when making per-AG reservations
2021-05-29seccomp: Refactor notification handler to prepare for new semanticsSargun Dhillon1-14/+16
This refactors the user notification code to have a do / while loop around the completion condition. This has a small change in semantic, in that previously we ignored addfd calls upon wakeup if the notification had been responded to, but instead with the new change we check for an outstanding addfd calls prior to returning to userspace. Rodrigo Campos also identified a bug that can result in addfd causing an early return, when the supervisor didn't actually handle the syscall [1]. [1]: https://lore.kernel.org/lkml/20210413160151.3301-1-rodrigo@kinvolk.io/ Fixes: 7cf97b125455 ("seccomp: Introduce addfd ioctl to seccomp user notifier") Signed-off-by: Sargun Dhillon <sargun@sargun.me> Acked-by: Tycho Andersen <tycho@tycho.pizza> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Kees Cook <keescook@chromium.org> Tested-by: Rodrigo Campos <rodrigo@kinvolk.io> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210517193908.3113-3-sargun@sargun.me
2021-05-29Merge tag 'thermal-v5.13-rc4' of ↵Linus Torvalds4-3/+7
git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux Pull thermal fixes from Daniel Lezcano: - Fix uninitialized error code value for the SPMI adc driver (Yang Yingliang) - Fix kernel doc warning (Yang Li) - Fix wrong read-write thermal trip point initialization (Srinivas Pandruvada) * tag 'thermal-v5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: thermal/drivers/qcom: Fix error code in adc_tm5_get_dt_channel_data() thermal/ti-soc-thermal: Fix kernel-doc thermal/drivers/intel: Initialize RW trip to THERMAL_TEMP_INVALID
2021-05-29Merge tag 'char-misc-5.13-rc4' of ↵Linus Torvalds5-5/+19
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some tiny char/misc driver fixes for 5.13-rc4. Nothing huge here, just some tiny fixes for reported issues: - two interconnect driver fixes - kgdb build warning fix for gcc-11 - hgafb regression fix - soundwire driver fix - mei driver fix All have been in linux-next with no reported issues" * tag 'char-misc-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: mei: request autosuspend after sending rx flow control kgdb: fix gcc-11 warnings harder video: hgafb: correctly handle card detect failure during probe soundwire: qcom: fix handling of qcom,ports-block-pack-mode interconnect: qcom: Add missing MODULE_DEVICE_TABLE interconnect: qcom: bcm-voter: add a missing of_node_put()
2021-05-29Merge tag 'driver-core-5.13-rc4' of ↵Linus Torvalds3-39/+44
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are three small driver core / debugfs fixes for 5.13-rc4: - debugfs fix for incorrect "lockdown" mode for selinux accesses - two device link changes, one bugfix and one cleanup All of these have been in linux-next for over a week with no reported problems" * tag 'driver-core-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: drivers: base: Reduce device link removal code duplication drivers: base: Fix device link removal debugfs: fix security_locked_down() call for SELinux
2021-05-29Merge tag 'staging-5.13-rc4' of ↵Linus Torvalds9-36/+55
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging and IIO driver fixes from Greg KH: "Here are some small IIO and staging driver fixes for reported issues for 5.13-rc4. Nothing major here, tiny changes for reported problems, full details are in the shortlog if people are curious. All have been in linux-next for a while with no reported problems" * tag 'staging-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: iio: adc: ad7793: Add missing error code in ad7793_setup() iio: adc: ad7923: Fix undersized rx buffer. iio: adc: ad7768-1: Fix too small buffer passed to iio_push_to_buffers_with_timestamp() iio: dac: ad5770r: Put fwnode in error case during ->probe() iio: gyro: fxas21002c: balance runtime power in error path staging: emxx_udc: fix loop in _nbu2ss_nuke() staging: iio: cdc: ad7746: avoid overwrite of num_channels iio: adc: ad7192: handle regulator voltage error first iio: adc: ad7192: Avoid disabling a clock that was never enabled. iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers iio: adc: ad7124: Fix missbalanced regulator enable / disable on error.
2021-05-29Merge tag 'tty-5.13-rc4' of ↵Linus Torvalds10-68/+92
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty / serial driver fixes from Greg KH: "Here are some small fixes for reported problems for tty and serial drivers for 5.13-rc4. They consist of: - 8250 bugfixes and new device support - lockdown security mode fixup - syzbot found problems fixed - 8250_omap fix for interrupt storm - revert of 8250_omap driver fix as it caused worse problem than the original issue All but the last patch have been in linux-next for a while, the last one is a revert of a problem found in linux-next with the 8250_omap driver change" * tag 'tty-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: Revert "serial: 8250: 8250_omap: Fix possible interrupt storm" serial: 8250_pci: handle FL_NOIRQ board flag serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait' serial: 8250_pci: Add support for new HPE serial device serial: 8250: 8250_omap: Fix possible interrupt storm serial: 8250: Use BIT(x) for UART_{CAP,BUG}_* serial: 8250: Add UART_BUG_TXRACE workaround for Aspeed VUART serial: 8250_dw: Add device HID for new AMD UART controller serial: sh-sci: Fix off-by-one error in FIFO threshold register setting serial: core: fix suspicious security_locked_down() call serial: tegra: Fix a mask operation that is always true
2021-05-29Merge tag 'usb-5.13-rc4' of ↵Linus Torvalds21-44/+112
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt fixes from Greg KH: "Here are a number of tiny USB and Thunderbolt driver fixes for 5.13-rc4. They consist of: - thunderbolt fixes for some NVM bound issues - xhci fixes for reported problems - control-request fixups - documentation build warning fixes - new usb-serial driver device ids - typec bugfixes for reported issues - usbfs warning fixups (could be triggered from userspace) - other tiny fixes for reported problems. All of these have been in linux-next with no reported issues" * tag 'usb-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits) xhci: Fix 5.12 regression of missing xHC cache clearing command after a Stall xhci: fix giving back URB with incorrect status regression in 5.12 usb: gadget: udc: renesas_usb3: Fix a race in usb3_start_pipen() usb: typec: tcpm: Respond Not_Supported if no snk_vdo usb: typec: tcpm: Properly interrupt VDM AMS USB: trancevibrator: fix control-request direction usb: Restore the usb_header label usb: typec: tcpm: Use LE to CPU conversion when accessing msg->header usb: typec: ucsi: Clear pending after acking connector change usb: typec: mux: Fix matching with typec_altmode_desc misc/uss720: fix memory leak in uss720_probe usb: dwc3: gadget: Properly track pending and queued SG USB: usbfs: Don't WARN about excessively large memory allocations thunderbolt: usb4: Fix NVM read buffer bounds and offset issue thunderbolt: dma_port: Fix NVM read buffer bounds and offset issue usb: chipidea: udc: assign interrupt number to USB gadget structure usb: cdnsp: Fix lack of removing request from pending list. usb: cdns3: Fix runtime PM imbalance on error USB: serial: pl2303: add device id for ADLINK ND-6530 GC USB: serial: ti_usb_3410_5052: add startech.com device id ...
2021-05-29Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds52-287/+1694
Pull KVM fixes from Paolo Bonzini: "ARM fixes: - Another state update on exit to userspace fix - Prevent the creation of mixed 32/64 VMs - Fix regression with irqbypass not restarting the guest on failed connect - Fix regression with debug register decoding resulting in overlapping access - Commit exception state on exit to usrspace - Fix the MMU notifier return values - Add missing 'static' qualifiers in the new host stage-2 code x86 fixes: - fix guest missed wakeup with assigned devices - fix WARN reported by syzkaller - do not use BIT() in UAPI headers - make the kvm_amd.avic parameter bool PPC fixes: - make halt polling heuristics consistent with other architectures selftests: - various fixes - new performance selftest memslot_perf_test - test UFFD minor faults in demand_paging_test" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (44 commits) selftests: kvm: fix overlapping addresses in memslot_perf_test KVM: X86: Kill off ctxt->ud KVM: X86: Fix warning caused by stale emulation context KVM: X86: Use kvm_get_linear_rip() in single-step and #DB/#BP interception KVM: x86/mmu: Fix comment mentioning skip_4k KVM: VMX: update vcpu posted-interrupt descriptor when assigning device KVM: rename KVM_REQ_PENDING_TIMER to KVM_REQ_UNBLOCK KVM: x86: add start_assignment hook to kvm_x86_ops KVM: LAPIC: Narrow the timer latency between wait_lapic_expire and world switch selftests: kvm: do only 1 memslot_perf_test run by default KVM: X86: Use _BITUL() macro in UAPI headers KVM: selftests: add shared hugetlbfs backing source type KVM: selftests: allow using UFFD minor faults for demand paging KVM: selftests: create alias mappings when using shared memory KVM: selftests: add shmem backing source type KVM: selftests: refactor vm_mem_backing_src_type flags KVM: selftests: allow different backing source types KVM: selftests: compute correct demand paging size KVM: selftests: simplify setup_demand_paging error handling KVM: selftests: Print a message if /dev/kvm is missing ...
2021-05-29Merge tag 's390-5.13-3' of ↵Linus Torvalds4-4/+15
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: "Fix races in vfio-ccw request handling" * tag 's390-5.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: vfio-ccw: Serialize FSM IDLE state with I/O completion vfio-ccw: Reset FSM state to IDLE inside FSM vfio-ccw: Check initialized flag in cp_init()
2021-05-29selftests: kvm: fix overlapping addresses in memslot_perf_testPaolo Bonzini1-1/+1
vm_create allocates memory and maps it close to GPA. This memory is separate from what is allocated in subsequent calls to vm_userspace_mem_region_add, so it is incorrect to pass the test memory size to vm_create_default. Just pass a small fixed amount of memory which can be used later for page table, otherwise GPAs are already allocated at MEM_GPA and the test aborts. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-05-29Merge tag 'scsi-fixes' of ↵Linus Torvalds11-17/+38
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Ten small fixes, all in drivers" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: target: qla2xxx: Wait for stop_phase1 at WWN removal scsi: hisi_sas: Drop free_irq() of devm_request_irq() allocated irq scsi: vmw_pvscsi: Set correct residual data length scsi: bnx2fc: Return failure if io_req is already in ABTS processing scsi: aic7xxx: Remove multiple definition of globals scsi: aic7xxx: Restore several defines for aic7xxx firmware build scsi: target: iblock: Fix smp_processor_id() BUG messages scsi: libsas: Use _safe() loop in sas_resume_port() scsi: target: tcmu: Fix xarray RCU warning scsi: target: core: Avoid smp_processor_id() in preemptible code
2021-05-29Merge tag 'block-5.13-2021-05-28' of git://git.kernel.dk/linux-blockLinus Torvalds11-21/+54
Pull block fixes from Jens Axboe: - NVMe pull request (Christoph): - fix a memory leak in nvme_cdev_add (Guoqing Jiang) - fix inline data size comparison in nvmet_tcp_queue_response (Hou Pu) - fix false keep-alive timeout when a controller is torn down (Sagi Grimberg) - fix a nvme-tcp Kconfig dependency (Sagi Grimberg) - short-circuit reconnect retries for FC (Hannes Reinecke) - decode host pathing error for connect (Hannes Reinecke) - MD pull request (Song): - Fix incorrect chunk boundary assert (Christoph) - Fix s390/dasd verification panic (Stefan) * tag 'block-5.13-2021-05-28' of git://git.kernel.dk/linux-block: nvmet: fix false keep-alive timeout when a controller is torn down nvmet-tcp: fix inline data size comparison in nvmet_tcp_queue_response nvme-tcp: remove incorrect Kconfig dep in BLK_DEV_NVME md/raid5: remove an incorrect assert in in_chunk_boundary s390/dasd: add missing discipline function nvme-fabrics: decode host pathing error for connect nvme-fc: short-circuit reconnect retries nvme: fix potential memory leaks in nvme_cdev_add
2021-05-29Merge tag 'io_uring-5.13-2021-05-28' of git://git.kernel.dk/linux-blockLinus Torvalds3-17/+29
Pull io_uring fixes from Jens Axboe: "A few minor fixes: - Fix an issue with hashed wait removal on exit (Zqiang, Pavel) - Fix a recent data race introduced in this series (Marco)" * tag 'io_uring-5.13-2021-05-28' of git://git.kernel.dk/linux-block: io_uring: fix data race to avoid potential NULL-deref io-wq: Fix UAF when wakeup wqe in hash waitqueue io_uring/io-wq: close io-wq full-stop gap
2021-05-29Merge tag 'drm-fixes-2021-05-29' of git://anongit.freedesktop.org/drm/drmLinus Torvalds13-57/+81
Pull drm fixes from Dave Airlie: "Pretty quiet this week, couple of amdgpu, one i915, and a few misc otherwise. ttm: - prevent irrelevant swapout amdgpu: - MultiGPU fan fix - VCN powergating fixes amdkfd: - Fix SDMA register offset error meson: - fix shutdown crash i915: - Re-enable LTTPR non-transparent LT mode for DPCD_REV < 1.4" * tag 'drm-fixes-2021-05-29' of git://anongit.freedesktop.org/drm/drm: drm/ttm: Skip swapout if ttm object is not populated drm/i915: Reenable LTTPR non-transparent LT mode for DPCD_REV<1.4 drm/meson: fix shutdown crash when component not probed drm/amdgpu/jpeg3: add cancel_delayed_work_sync before power gate drm/amdgpu/jpeg2.5: add cancel_delayed_work_sync before power gate drm/amdgpu/jpeg2.0: add cancel_delayed_work_sync before power gate drm/amdgpu/vcn3: add cancel_delayed_work_sync before power gate drm/amdgpu/vcn2.5: add cancel_delayed_work_sync before power gate drm/amdgpu/vcn2.0: add cancel_delayed_work_sync before power gate drm/amdgpu/vcn1: add cancel_delayed_work_sync before power gate drm/amdkfd: correct sienna_cichlid SDMA RLC register offset error drm/amd/pm: correct MGpuFanBoost setting
2021-05-29Merge tag 'perf-tools-fixes-for-v5.13-2021-05-28' of ↵Linus Torvalds13-304/+304
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools fixes from Arnaldo Carvalho de Melo: - Fix error checking of BPF prog attachment in 'perf stat'. - Fix getting maximum number of fds in the vendor events JSON parser. - Move debug initialization earlier, fixing a segfault in some cases. - Fix eventcode of power10 JSON events. * tag 'perf-tools-fixes-for-v5.13-2021-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: perf vendor events powerpc: Fix eventcode of power10 JSON events perf stat: Fix error check for bpf_program__attach perf debug: Move debug initialization earlier perf jevents: Fix getting maximum number of fds
2021-05-29Merge tag '5.13-rc4-smb3' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds5-57/+150
Pull cifs fixes from Steve French: "Three SMB3 fixes. Two for stable, and the other fixes a problem pointed out with a recently added ioctl" * tag '5.13-rc4-smb3' of git://git.samba.org/sfrench/cifs-2.6: cifs: change format of CIFS_FULL_KEY_DUMP ioctl cifs: fix string declarations and assignments in tracepoints cifs: set server->cipher_type to AES-128-CCM for SMB3.0
2021-05-28Merge tag 'nfs-for-5.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds15-62/+96
Pull NFS client bugfixes from Trond Myklebust: "Stable fixes: - Fix v4.0/v4.1 SEEK_DATA return -ENOTSUPP when set NFS_V4_2 config - Fix Oops in xs_tcp_send_request() when transport is disconnected - Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return() Bugfixes: - Fix instances where signal_pending() should be fatal_signal_pending() - fix an incorrect limit in filelayout_decode_layout() - Fixes for the SUNRPC backlogged RPC queue - Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce() - Revert commit 586a0787ce35 ("Clean up rpcrdma_prepare_readch()")" * tag 'nfs-for-5.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: nfs: Remove trailing semicolon in macros xprtrdma: Revert 586a0787ce35 NFSv4: Fix v4.0/v4.1 SEEK_DATA return -ENOTSUPP when set NFS_V4_2 config NFS: Clean up reset of the mirror accounting variables NFS: Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce() NFS: Fix an Oopsable condition in __nfs_pageio_add_request() SUNRPC: More fixes for backlog congestion SUNRPC: Fix Oops in xs_tcp_send_request() when transport is disconnected NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return() SUNRPC in case of backlog, hand free slots directly to waiting task pNFS/NFSv4: Remove redundant initialization of 'rd_size' NFS: fix an incorrect limit in filelayout_decode_layout() fs/nfs: Use fatal_signal_pending instead of signal_pending
2021-05-28Merge tag 'sound-5.13-rc4' of ↵Linus Torvalds30-183/+301
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A slightly high volume at this time due to pending ASoC fixes. While there are a few generic simple-card fixes for regressions, most of the changes are device-specific fixes: ASoC Intel SOF, codec clocks, other codec / platform fixes as well as usual HD-audio and USB-audio" * tag 'sound-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (37 commits) ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Zbook Fury 17 G8 ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Zbook Fury 15 G8 ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Zbook G8 ALSA: hda/realtek: fix mute/micmute LEDs for HP 855 G8 ALSA: hda/realtek: Chain in pop reduction fixup for ThinkStation P340 ALSA: usb-audio: scarlett2: snd_scarlett_gen2_controls_create() can be static ALSA: hda/realtek: the bass speaker can't output sound on Yoga 9i ALSA: hda/realtek: Headphone volume is controlled by Front mixer ALSA: usb-audio: scarlett2: Improve driver startup messages ALSA: usb-audio: scarlett2: Fix device hang with ehci-pci ALSA: usb-audio: fix control-request direction ASoC: qcom: lpass-cpu: Use optional clk APIs ASoC: cs35l33: fix an error code in probe() ASoC: SOF: Intel: hda: don't send DAI_CONFIG IPC for older firmware ASoC: fsl: fix SND_SOC_IMX_RPMSG dependency ASoC: cs42l52: Minor tidy up of error paths ASoC: cs35l32: Add missing regmap use_single config ASoC: cs35l34: Add missing regmap use_single config ASoC: cs42l73: Add missing regmap use_single config ASoC: cs53l30: Add missing regmap use_single config ...
2021-05-28Merge tag 'clang-features-v5.13-rc4' of ↵Linus Torvalds2-1/+7
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull clang feature fixes from Kees Cook: - Correctly pass stack frame size checking under LTO (Nick Desaulniers) - Avoid CFI mismatches by checking initcall_t types (Marco Elver) * tag 'clang-features-v5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: Makefile: LTO: have linker check -Wframe-larger-than init: verify that function is initcall_t at compile-time
2021-05-28Merge tag 'mips-fixes_5.13_1' of ↵Linus Torvalds4-6/+14
git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS fixes from Thomas Bogendoerfer: - fix function/preempt trace hangs - a few build fixes * tag 'mips-fixes_5.13_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MIPS: Fix kernel hang under FUNCTION_GRAPH_TRACER and PREEMPT_TRACER MIPS: ralink: export rt_sysc_membase for rt2880_wdt.c MIPS: launch.h: add include guard to prevent build errors MIPS: alchemy: xxs1500: add gpio-au1000.h header file
2021-05-28Merge tag 'kvmarm-fixes-5.13-2' of ↵Paolo Bonzini3-7/+35
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for 5.13, take #2 - Another state update on exit to userspace fix - Prevent the creation of mixed 32/64 VMs
2021-05-28KVM: X86: Kill off ctxt->udWanpeng Li3-7/+5
ctxt->ud is consumed only by x86_decode_insn(), we can kill it off by passing emulation_type to x86_decode_insn() and dropping ctxt->ud altogether. Tracking that info in ctxt for literally one call is silly. Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Message-Id: <1622160097-37633-2-git-send-email-wanpengli@tencent.com>
2021-05-28KVM: X86: Fix warning caused by stale emulation contextWanpeng Li1-5/+5
Reported by syzkaller: WARNING: CPU: 7 PID: 10526 at linux/arch/x86/kvm//x86.c:7621 x86_emulate_instruction+0x41b/0x510 [kvm] RIP: 0010:x86_emulate_instruction+0x41b/0x510 [kvm] Call Trace: kvm_mmu_page_fault+0x126/0x8f0 [kvm] vmx_handle_exit+0x11e/0x680 [kvm_intel] vcpu_enter_guest+0xd95/0x1b40 [kvm] kvm_arch_vcpu_ioctl_run+0x377/0x6a0 [kvm] kvm_vcpu_ioctl+0x389/0x630 [kvm] __x64_sys_ioctl+0x8e/0xd0 do_syscall_64+0x3c/0xb0 entry_SYSCALL_64_after_hwframe+0x44/0xae Commit 4a1e10d5b5d8 ("KVM: x86: handle hardware breakpoints during emulation()) adds hardware breakpoints check before emulation the instruction and parts of emulation context initialization, actually we don't have the EMULTYPE_NO_DECODE flag here and the emulation context will not be reused. Commit c8848cee74ff ("KVM: x86: set ctxt->have_exception in x86_decode_insn()) triggers the warning because it catches the stale emulation context has #UD, however, it is not during instruction decoding which should result in EMULATION_FAILED. This patch fixes it by moving the second part emulation context initialization into init_emulate_ctxt() and before hardware breakpoints check. The ctxt->ud will be dropped by a follow-up patch. syzkaller source: https://syzkaller.appspot.com/x/repro.c?x=134683fdd00000 Reported-by: syzbot+71271244f206d17f6441@syzkaller.appspotmail.com Fixes: 4a1e10d5b5d8 (KVM: x86: handle hardware breakpoints during emulation) Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Message-Id: <1622160097-37633-1-git-send-email-wanpengli@tencent.com>
2021-05-28KVM: X86: Use kvm_get_linear_rip() in single-step and #DB/#BP interceptionYuan Yao2-5/+3
The kvm_get_linear_rip() handles x86/long mode cases well and has better readability, __kvm_set_rflags() also use the paired function kvm_is_linear_rip() to check the vcpu->arch.singlestep_rip set in kvm_arch_vcpu_ioctl_set_guest_debug(), so change the "CS.BASE + RIP" code in kvm_arch_vcpu_ioctl_set_guest_debug() and handle_exception_nmi() to this one. Signed-off-by: Yuan Yao <yuan.yao@intel.com> Message-Id: <20210526063828.1173-1-yuan.yao@linux.intel.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-24 16:15:19 +0300