diff options
| author |   Olof Johansson <olof@lixom.net> | 2017-05-18 23:54:47 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2017-05-18 23:54:47 -0700 |
| commit | 5252d73756f318f182f2316acd78a6532041414d (patch) | |
| tree | b082478fca4f00f599bb2ed1547b2652c2bea155 /arch/mips/kernel/mips-r2-to-r6-emul.c | |
| parent | tee: add ARM_SMCCC dependency (diff) | |
| parent | Linux 4.12-rc1 (diff) | |
| download | linux-dev-5252d73756f318f182f2316acd78a6532041414d.tar.xz linux-dev-5252d73756f318f182f2316acd78a6532041414d.zip | |
Merge tag 'v4.12-rc1' into fixes
We've received a few fixes branches with -rc1 as base, but our contents was
still at pre-rc1. Merge it in expliticly to make 'git merge --log' clear on
hat was actually merged.
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/mips/kernel/mips-r2-to-r6-emul.c')
| -rw-r--r-- | arch/mips/kernel/mips-r2-to-r6-emul.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/mips/kernel/mips-r2-to-r6-emul.c b/arch/mips/kernel/mips-r2-to-r6-emul.c index 550e7d03090a..ae64c8f56a8c 100644 --- a/arch/mips/kernel/mips-r2-to-r6-emul.c +++ b/arch/mips/kernel/mips-r2-to-r6-emul.c @@ -1096,10 +1096,20 @@ repeat: } break; - case beql_op: - case bnel_op: case blezl_op: case bgtzl_op: + /* + * For BLEZL and BGTZL, rt field must be set to 0. If this + * is not the case, this may be an encoding of a MIPS R6 + * instruction, so return to CPU execution if this occurs + */ + if (MIPSInst_RT(inst)) { + err = SIGILL; + break; + } + /* fall through */ + case beql_op: + case bnel_op: if (delay_slot(regs)) { err = SIGILL; break; @@ -2329,6 +2339,8 @@ static int mipsr2_stats_clear_show(struct seq_file *s, void *unused) __this_cpu_write((mipsr2bremustats).bgezl, 0); __this_cpu_write((mipsr2bremustats).bltzll, 0); __this_cpu_write((mipsr2bremustats).bgezll, 0); + __this_cpu_write((mipsr2bremustats).bltzall, 0); + __this_cpu_write((mipsr2bremustats).bgezall, 0); __this_cpu_write((mipsr2bremustats).bltzal, 0); __this_cpu_write((mipsr2bremustats).bgezal, 0); __this_cpu_write((mipsr2bremustats).beql, 0); |