3f9e5a6923
Starting with LLVM r308050, clang generates a jump table with EL1 virtual addresses in __init_stage2_translation, which results in a kernel panic when booting at EL2: Kernel panic - not syncing: HYP panic: PS:800003c9 PC:ffff0000089e6fd8 ESR:86000004 FAR:ffff0000089e6fd8 HPFAR:0000000009825000 PAR:0000000000000000 VCPU:000804fc20001221 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.14.0-rc7-dirty #3 Hardware name: ARM Juno development board (r1) (DT) Call trace: [<ffff000008088ea4>] dump_backtrace+0x0/0x34c [<ffff000008089208>] show_stack+0x18/0x20 [<ffff0000089c73ec>] dump_stack+0xc4/0xfc [<ffff0000080c8e1c>] panic+0x138/0x2b4 [<ffff0000080c8ce4>] panic+0x0/0x2b4 SMP: stopping secondary CPUs SMP: failed to stop secondary CPUs 0-3,5 Kernel Offset: disabled CPU features: 0x002086 Memory Limit: none ---[ end Kernel panic - not syncing: HYP panic: PS:800003c9 PC:ffff0000089e6fd8 ESR:86000004 FAR:ffff0000089e6fd8 HPFAR:0000000009825000 PAR:0000000000000000 VCPU:000804fc20001221 This change adds -fno-jump-tables to arm64/hyp to work around the bug. Bug: 62093296 Bug: 67506682 Change-Id: I1257be1febdcbfcc886fe6183c698b7a98d2a153 (am from https://patchwork.kernel.org/patch/10060301/) Suggested-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Signed-off-by: Sami Tolvanen <samitolvanen@google.com> |
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arm | ||
arm64 | ||
c6x | ||
h8300 | ||
hexagon | ||
ia64 | ||
m68k | ||
microblaze | ||
mips | ||
nds32 | ||
nios2 | ||
openrisc | ||
parisc | ||
powerpc | ||
riscv | ||
s390 | ||
sh | ||
sparc | ||
um | ||
unicore32 | ||
x86 | ||
xtensa | ||
.gitignore | ||
Kconfig |