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authorChristophe Leroy <christophe.leroy@csgroup.eu>2021-08-23 08:24:21 +0000
committerMichael Ellerman <mpe@ellerman.id.au>2021-08-26 21:21:07 +1000
commit806c0e6e7e97adc17389c8dc1f52d4736f49299b (patch)
tree87b731a92cd76db6d972cd5a3908043c88419dca /arch/powerpc/kernel/traps.c
parent133c17a1788d68c9fff59d5f724a4ba14647a16d (diff)
powerpc: Refactor verification of MSR_RI
40x and BOOKE don't have MSR_RI therefore all tests involving MSR_RI may be problematic on those plateforms. Create helpers to check or set MSR_RI in regs, and use them in common code. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/c2fb93708196734f4176dda334aaa3055f213b89.1629707037.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
-rw-r--r--arch/powerpc/kernel/traps.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 5463d201d465..3a344f5265c2 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -428,7 +428,7 @@ void hv_nmi_check_nonrecoverable(struct pt_regs *regs)
return;
nonrecoverable:
- regs_set_return_msr(regs, regs->msr & ~MSR_RI);
+ regs_set_unrecoverable(regs);
#endif
}
DEFINE_INTERRUPT_HANDLER_NMI(system_reset_exception)
@@ -498,7 +498,7 @@ out:
die("Unrecoverable nested System Reset", regs, SIGABRT);
#endif
/* Must die if the interrupt is not recoverable */
- if (!(regs->msr & MSR_RI)) {
+ if (regs_is_unrecoverable(regs)) {
/* For the reason explained in die_mce, nmi_exit before die */
nmi_exit();
die("Unrecoverable System Reset", regs, SIGABRT);
@@ -550,7 +550,7 @@ static inline int check_io_access(struct pt_regs *regs)
printk(KERN_DEBUG "%s bad port %lx at %p\n",
(*nip & 0x100)? "OUT to": "IN from",
regs->gpr[rb] - _IO_BASE, nip);
- regs_set_return_msr(regs, regs->msr | MSR_RI);
+ regs_set_recoverable(regs);
regs_set_return_ip(regs, extable_fixup(entry));
return 1;
}
@@ -840,7 +840,7 @@ DEFINE_INTERRUPT_HANDLER_NMI(machine_check_exception)
bail:
/* Must die if the interrupt is not recoverable */
- if (!(regs->msr & MSR_RI))
+ if (regs_is_unrecoverable(regs))
die_mce("Unrecoverable Machine check", regs, SIGBUS);
#ifdef CONFIG_PPC_BOOK3S_64