diff options
| -rw-r--r-- | target-i386/helper.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/target-i386/helper.c b/target-i386/helper.c index 07ff3563cc..bad3f7c1b6 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -4262,7 +4262,8 @@ int svm_check_intercept_param(uint32_t type, uint64_t param) uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.iopm_base_pa)); uint16_t port = (uint16_t) (param >> 16); - if(ldub_phys(addr + port / 8) & (1 << (port % 8))) + uint16_t mask = (1 << ((param >> 4) & 7)) - 1; + if(lduw_phys(addr + port / 8) & (mask << (port & 7))) vmexit(type, param); } break; |