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target/ppc: Check mask when setting cap_ppc_safe_indirect_branch 

Check the character and character_mask field when setting
cap_ppc_safe_indirect_branch based on the hypervisor response
to KVM_PPC_GET_CPU_CHAR. Previously the mask field wasn't checked
which was incorrect.

Fixes: 8acc2ae5 (target/ppc/kvm: Add cap_ppc_safe_[cache/bounds_check/indirect_branch])

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Suraj Jitindar Singh 2018-03-01 17:37:58 +11:00 committed by David Gibson
parent b6712ea391
commit cb931c2108
1 changed files with 1 additions and 1 deletions
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2
target/ppc/kvm.c
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@ -2494,7 +2494,7 @@ static void kvmppc_get_cpu_characteristics(KVMState *s)
cap_ppc_safe_bounds_check = 1; cap_ppc_safe_bounds_check = 1;
} }
/* Parse and set cap_ppc_safe_indirect_branch */ /* Parse and set cap_ppc_safe_indirect_branch */
if (c.character & H_CPU_CHAR_BCCTRL_SERIALISED) { if (c.character & c.character_mask & H_CPU_CHAR_BCCTRL_SERIALISED) {
cap_ppc_safe_indirect_branch = 2; cap_ppc_safe_indirect_branch = 2;
} }
} }