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Date: Tue, 15 Mar 2022 16:20:39 -0000
From: Clark Williams <williams@...hat.com>
To: LKML <linux-kernel@...r.kernel.org>,
linux-rt-users <linux-rt-users@...r.kernel.org>,
Steven Rostedt <rostedt@...dmis.org>,
Thomas Gleixner <tglx@...utronix.de>,
Carsten Emde <C.Emde@...dl.org>,
John Kacur <jkacur@...hat.com>,
Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
Daniel Wagner <daniel.wagner@...e.com>,
Tom Zanussi <tom.zanussi@...ux.intel.com>,
Clark Williams <williams@...hat.com>,
Pavel Machek <pavel@...x.de>
Subject: [ANNOUNCE] 5.15.28-rt36
Hello RT-list!
I'm pleased to announce the 5.15.28-rt36 stable release.
You can get this release via the git tree at:
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
branch: v5.15-rt
Head SHA1: 42ea71f324239aff9351a401974c9781ebacda4c
Or to build 5.15.28-rt36 directly, the following patches should be applied:
https://www.kernel.org/pub/linux/kernel/v5.x/linux-5.15.tar.xz
https://www.kernel.org/pub/linux/kernel/v5.x/patch-5.15.28.xz
https://www.kernel.org/pub/linux/kernel/projects/rt/5.15/patch-5.15.28-rt36.patch.xz
You can also build from 5.15.27-rt35 by applying the incremental patch:
https://www.kernel.org/pub/linux/kernel/projects/rt/5.15/incr/patch-5.15.27-rt35-rt36.patch.xz
Enjoy!
Clark
Changes from v5.15.27-rt35:
---
Anshuman Khandual (1):
arm64: Add Cortex-X2 CPU part definition
Clark Williams (2):
Merge tag 'v5.15.28' into v5.15-rt
Linux 5.15.28-rt36
Emmanuel Gil Peyrot (1):
ARM: fix build error when BPF_SYSCALL is disabled
Greg Kroah-Hartman (2):
Revert "ACPI: PM: s2idle: Cancel wakeup before dispatching EC GPE"
Linux 5.15.28
Huang Pei (1):
slip: fix macro redefine warning
James Morse (20):
arm64: entry.S: Add ventry overflow sanity checks
arm64: spectre: Rename spectre_v4_patch_fw_mitigation_conduit
KVM: arm64: Allow indirect vectors to be used without SPECTRE_V3A
arm64: entry: Make the trampoline cleanup optional
arm64: entry: Free up another register on kpti's tramp_exit path
arm64: entry: Move the trampoline data page before the text page
arm64: entry: Allow tramp_alias to access symbols after the 4K boundary
arm64: entry: Don't assume tramp_vectors is the start of the vectors
arm64: entry: Move trampoline macros out of ifdef'd section
arm64: entry: Make the kpti trampoline's kpti sequence optional
arm64: entry: Allow the trampoline text to occupy multiple pages
arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations
arm64: entry: Add vectors that have the bhb mitigation sequences
arm64: entry: Add macro for reading symbol addresses from the trampoline
arm64: Add percpu vectors for EL1
arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2
arm64: Mitigate spectre style branch history side channels
KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated
arm64: Use the clearbhb instruction in mitigations
arm64: proton-pack: Include unprivileged eBPF status in Spectre v2 mitigation reporting
Joey Gouly (3):
arm64: add ID_AA64ISAR2_EL1 sys register
arm64: cpufeature: add HWCAP for FEAT_AFP
arm64: cpufeature: add HWCAP for FEAT_RPRES
Josh Poimboeuf (3):
x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting
x86/speculation: Warn about Spectre v2 LFENCE mitigation
x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT
Juergen Gross (11):
xen/xenbus: don't let xenbus_grant_ring() remove grants in error case
xen/grant-table: add gnttab_try_end_foreign_access()
xen/blkfront: don't use gnttab_query_foreign_access() for mapped status
xen/netfront: don't use gnttab_query_foreign_access() for mapped status
xen/scsifront: don't use gnttab_query_foreign_access() for mapped status
xen/gntalloc: don't use gnttab_query_foreign_access()
xen: remove gnttab_query_foreign_access()
xen/9p: use alloc/free_pages_exact()
xen/pvcalls: use alloc/free_pages_exact()
xen/gnttab: fix gnttab_end_foreign_access() without page specified
xen/netfront: react properly to failing gnttab_end_foreign_access_ref()
Kim Phillips (2):
x86/speculation: Use generic retpoline by default on AMD
x86/speculation: Update link to AMD speculation whitepaper
Marc Zyngier (1):
arm64: Add HWCAP for self-synchronising virtual counter
Nathan Chancellor (2):
ARM: Do not use NOCROSSREFS directive with ld.lld
arm64: Do not include __READ_ONCE() block in assembly files
Peter Zijlstra (3):
x86,bugs: Unconditionally allow spectre_v2=retpoline,amd
x86/speculation: Add eIBRS + Retpoline options
Documentation/hw-vuln: Update spectre doc
Peter Zijlstra (Intel) (1):
x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE
Russell King (Oracle) (7):
ARM: report Spectre v2 status through sysfs
ARM: early traps initialisation
ARM: use LOADADDR() to get load address of sections
ARM: Spectre-BHB workaround
ARM: include unprivileged BPF status in Spectre V2 reporting
ARM: fix co-processor register typo
ARM: fix build warning in proc-v7-bugs.c
Suzuki K Poulose (1):
arm64: Add Neoverse-N2, Cortex-A710 CPU part definition
---
Documentation/admin-guide/hw-vuln/spectre.rst | 48 ++-
Documentation/admin-guide/kernel-parameters.txt | 8 +-
Documentation/arm64/cpu-feature-registers.rst | 29 +-
Documentation/arm64/elf_hwcaps.rst | 12 +
Makefile | 2 +-
arch/arm/include/asm/assembler.h | 10 +
arch/arm/include/asm/spectre.h | 32 ++
arch/arm/include/asm/vmlinux.lds.h | 43 ++-
arch/arm/kernel/Makefile | 2 +
arch/arm/kernel/entry-armv.S | 79 ++++-
arch/arm/kernel/entry-common.S | 24 ++
arch/arm/kernel/spectre.c | 71 +++++
arch/arm/kernel/traps.c | 65 +++-
arch/arm/mm/Kconfig | 11 +
arch/arm/mm/proc-v7-bugs.c | 208 ++++++++++---
arch/arm64/Kconfig | 9 +
arch/arm64/include/asm/assembler.h | 53 ++++
arch/arm64/include/asm/cpu.h | 1 +
arch/arm64/include/asm/cpufeature.h | 29 ++
arch/arm64/include/asm/cputype.h | 14 +
arch/arm64/include/asm/fixmap.h | 6 +-
arch/arm64/include/asm/hwcap.h | 3 +
arch/arm64/include/asm/insn.h | 1 +
arch/arm64/include/asm/kvm_host.h | 5 +
arch/arm64/include/asm/rwonce.h | 4 +-
arch/arm64/include/asm/sections.h | 5 +
arch/arm64/include/asm/spectre.h | 4 +
arch/arm64/include/asm/sysreg.h | 18 ++
arch/arm64/include/asm/vectors.h | 73 +++++
arch/arm64/include/uapi/asm/hwcap.h | 3 +
arch/arm64/include/uapi/asm/kvm.h | 5 +
arch/arm64/kernel/cpu_errata.c | 7 +
arch/arm64/kernel/cpufeature.c | 28 +-
arch/arm64/kernel/cpuinfo.c | 4 +
arch/arm64/kernel/entry.S | 214 +++++++++----
arch/arm64/kernel/image-vars.h | 4 +
arch/arm64/kernel/proton-pack.c | 391 +++++++++++++++++++++++-
arch/arm64/kernel/vmlinux.lds.S | 2 +-
arch/arm64/kvm/arm.c | 5 +-
arch/arm64/kvm/hyp/hyp-entry.S | 9 +
arch/arm64/kvm/hyp/nvhe/mm.c | 4 +-
arch/arm64/kvm/hyp/vhe/switch.c | 9 +-
arch/arm64/kvm/hypercalls.c | 12 +
arch/arm64/kvm/psci.c | 18 +-
arch/arm64/kvm/sys_regs.c | 2 +-
arch/arm64/mm/mmu.c | 12 +-
arch/arm64/tools/cpucaps | 1 +
arch/x86/include/asm/cpufeatures.h | 2 +-
arch/x86/include/asm/nospec-branch.h | 16 +-
arch/x86/kernel/cpu/bugs.c | 205 +++++++++----
arch/x86/lib/retpoline.S | 2 +-
drivers/acpi/ec.c | 10 -
drivers/acpi/sleep.c | 14 +-
drivers/block/xen-blkfront.c | 63 ++--
drivers/net/slip/slip.h | 2 +
drivers/net/xen-netfront.c | 54 ++--
drivers/scsi/xen-scsifront.c | 3 +-
drivers/xen/gntalloc.c | 25 +-
drivers/xen/grant-table.c | 71 +++--
drivers/xen/pvcalls-front.c | 8 +-
drivers/xen/xenbus/xenbus_client.c | 24 +-
include/linux/arm-smccc.h | 5 +
include/linux/bpf.h | 12 +
include/xen/grant_table.h | 19 +-
kernel/sysctl.c | 7 +
localversion-rt | 2 +-
net/9p/trans_xen.c | 14 +-
tools/arch/x86/include/asm/cpufeatures.h | 2 +-
68 files changed, 1800 insertions(+), 359 deletions(-)
---
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