Commit b26177d7ec3f50157a5f37f804ffcace3b2a3945
1 parent
df01e0fc
Make SVM IOIO intercept check all needed bits, by Bernhard Kauer.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3792 c046a42c-6fe2-441c-8c8c-71466251a162
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target-i386/helper.c
| @@ -4262,7 +4262,8 @@ int svm_check_intercept_param(uint32_t type, uint64_t param) | @@ -4262,7 +4262,8 @@ int svm_check_intercept_param(uint32_t type, uint64_t param) | ||
| 4262 | uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.iopm_base_pa)); | 4262 | uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.iopm_base_pa)); |
| 4263 | uint16_t port = (uint16_t) (param >> 16); | 4263 | uint16_t port = (uint16_t) (param >> 16); |
| 4264 | 4264 | ||
| 4265 | - if(ldub_phys(addr + port / 8) & (1 << (port % 8))) | 4265 | + uint16_t mask = (1 << ((param >> 4) & 7)) - 1; |
| 4266 | + if(lduw_phys(addr + port / 8) & (mask << (port & 7))) | ||
| 4266 | vmexit(type, param); | 4267 | vmexit(type, param); |
| 4267 | } | 4268 | } |
| 4268 | break; | 4269 | break; |