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Peter Zijlstra adee8f3082 x86/nospec: Unwreck the RSB stuffing 
commit 4e3aa9238277597c6c7624f302d81a7b568b6f2d upstream.

Commit 2b1299322016 ("x86/speculation: Add RSB VM Exit protections")
made a right mess of the RSB stuffing, rewrite the whole thing to not
suck.

Thanks to Andrew for the enlightening comment about Post-Barrier RSB
things so we can make this code less magical.

Cc: stable@vger.kernel.org
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/YvuNdDWoUZSBjYcm@worktop.programming.kicks-ass.net
[bwh: Backported to 5.10: adjust context]
Signed-off-by: Ben Hutchings <benh@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-05 10:28:54 +02:00
..
alpha
tty: the rest, stop using tty_schedule_flip()
2022-07-29 17:19:28 +02:00
arc
ARC: entry: fix syscall_trace_exit argument
2022-04-27 13:53:55 +02:00
arm
ARM: dts: qcom: pm8841: add required thermal-sensor-cells
2022-08-21 15:15:35 +02:00
arm64
arm64: Fix match_list for erratum 1286807 on Arm Cortex-A76
2022-08-31 17:15:23 +02:00
c6x
…
csky
csky/kprobe: reclaim insn_slot on kprobe unregistration
2022-08-25 11:38:16 +02:00
h8300
h8300: fix PREEMPTION build, TI_PRE_COUNT undefined
2021-02-17 11:02:28 +01:00
hexagon
hexagon: select ARCH_WANT_LD_ORPHAN_WARN
2022-08-21 15:15:33 +02:00
ia64
ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr()
2022-08-21 15:15:25 +02:00
m68k
Revert "m68knommu: only set CONFIG_ISA_DMA_API for ColdFire sub-arch"
2022-07-29 17:19:09 +02:00
microblaze
uaccess: fix nios2 and microblaze get_user_8()
2022-04-08 14:40:08 +02:00
mips
MIPS: tlbex: Explicitly compare _PAGE_NO_EXEC against 0
2022-08-25 11:38:22 +02:00
nds32
nds32: fix access_ok() checks in get/put_user
2022-03-28 09:57:10 +02:00
nios2
nios2: add force_successful_syscall_return()
2022-08-25 11:38:04 +02:00
openrisc
openrisc: start CPU timer early in boot
2022-06-09 10:20:55 +02:00
parisc
parisc: Fix exception handler for fldw and fstw instructions
2022-08-31 17:15:13 +02:00
powerpc
powerpc/64: Init jump labels before parse_early_param()
2022-08-25 11:38:21 +02:00
riscv
RISC-V: Add fast call path of crash_kexec()
2022-08-25 11:38:19 +02:00
s390
s390: fix double free of GS and RI CBs on fork() failure
2022-08-31 17:15:23 +02:00
sh
sh: convert nommu io{re,un}map() to static inline functions
2022-07-21 21:20:02 +02:00
sparc
sparc: use fallback for random_get_entropy() instead of zero
2022-05-30 09:33:42 +02:00
um
um: add "noreboot" command line option for PANIC_TIMEOUT=-1 setups
2022-08-25 11:38:16 +02:00
x86
x86/nospec: Unwreck the RSB stuffing
2022-09-05 10:28:54 +02:00
xtensa
xtensa: iss: fix handling error cases in iss_net_configure()
2022-08-21 15:15:59 +02:00
.gitignore
…
Kconfig
arch/cc: Introduce a function to check for confidential computing features
2021-11-18 14:04:32 +01:00