xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc: Wire up the HV facility unavailable exception

Browse Source 
Similar to the facility unavailble exception, except the facilities are
controlled by HFSCR.

Adapt the facility_unavailable_exception() so it can be called for
either the regular or Hypervisor facility unavailable exceptions.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
CC: <stable@vger.kernel.org> [v3.10]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Ellerman
2013-06-25 17:47:57 +10:00
committed by Benjamin Herrenschmidt
parent 021424a1fc
commit b14b6260ef
2 changed files with 27 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
arch/powerpc/kernel/traps.c
View File

@@ -1299,10 +1299,18 @@ void facility_unavailable_exception(struct pt_regs *regs)
"EBB",
"TAR",
};
char *facility;
char *facility, *prefix;
u64 value;
value = mfspr(SPRN_FSCR) >> 56;
if (regs->trap == 0xf60) {
value = mfspr(SPRN_FSCR);
prefix = "";
} else {
value = mfspr(SPRN_HFSCR);
prefix = "Hypervisor ";
}
value = value >> 56;
/* We restore the interrupt state now */
if (!arch_irq_disabled_regs(regs))
@@ -1313,8 +1321,8 @@ void facility_unavailable_exception(struct pt_regs *regs)
else
facility = "unknown";
pr_err("Facility '%s' unavailable, exception at 0x%lx, MSR=%lx\n",
facility, regs->nip, regs->msr);
pr_err("%sFacility '%s' unavailable, exception at 0x%lx, MSR=%lx\n",
prefix, facility, regs->nip, regs->msr);
if (user_mode(regs)) {
_exception(SIGILL, regs, ILL_ILLOPC, regs->nip);