Peter Zijlstra 500195a109 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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-08-31 17:16:47 +02:00

..

alpha

tty: the rest, stop using tty_schedule_flip()

2022-07-29 17:25:32 +02:00

arc

ARC: entry: fix syscall_trace_exit argument

2022-04-27 14:39:00 +02:00

arm

ARM: remove some dead code

2022-08-17 14:24:23 +02:00

arm64

KVM: arm64: Reject 32bit user PSTATE on asymmetric systems

2022-08-25 11:40:29 +02:00

csky

csky/kprobe: reclaim insn_slot on kprobe unregistration

2022-08-25 11:40:38 +02:00

h8300

Merge branch 'akpm' (patches from Andrew)

2021-09-08 12:55:35 -07:00

hexagon

uaccess: fix integer overflow on access_ok()

2022-03-28 09:58:45 +02:00

ia64

ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr()

2022-08-17 14:22:57 +02:00

m68k

m68k: coldfire/device.c: protect FLEXCAN blocks

2022-08-25 11:40:05 +02:00

microblaze

uaccess: fix nios2 and microblaze get_user_8()

2022-04-08 14:23:18 +02:00

mips

MIPS: tlbex: Explicitly compare _PAGE_NO_EXEC against 0

2022-08-25 11:40:46 +02:00

nds32

nds32: fix access_ok() checks in get/put_user

2022-03-28 09:58:46 +02:00

nios2

nios2: add force_successful_syscall_return()

2022-08-25 11:40:19 +02:00

openrisc

openrisc: io: Define iounmap argument as volatile

2022-08-25 11:40:38 +02:00

parisc

parisc: Fix exception handler for fldw and fstw instructions

2022-08-31 17:16:33 +02:00

powerpc

powerpc/64: Init jump labels before parse_early_param()

2022-08-25 11:40:45 +02:00

riscv

riscv: lib: uaccess: fix CSR_STATUS SR_SUM bit

2022-08-31 17:16:36 +02:00

s390

Revert "s390/smp: enforce lowcore protection on CPU restart"

2022-08-17 14:24:30 +02:00

sh

sh: convert nommu io{re,un}map() to static inline functions

2022-07-21 21:24:14 +02:00

sparc

signal: Deliver SIGTRAP on perf event asynchronously if blocked

2022-06-09 10:22:48 +02:00

um

um: add "noreboot" command line option for PANIC_TIMEOUT=-1 setups

2022-08-25 11:40:37 +02:00

x86

x86/nospec: Unwreck the RSB stuffing

2022-08-31 17:16:47 +02:00

xtensa

xtensa: iss: fix handling error cases in iss_net_configure()

2022-08-17 14:23:52 +02:00

.gitignore

…

Kconfig

arch: make TRACE_IRQFLAGS_NMI_SUPPORT generic

2022-08-17 14:23:00 +02:00