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envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::329; envelope-from=laramglazier@gmail.com; helo=mail-wm1-x329.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lara Lazier Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @gmail.com) Content-Type: text/plain; charset="utf-8" Zero VMRUN intercept and ASID should cause an immediate VMEXIT during the consistency checks performed by VMRUN. (AMD64 Architecture Programmer's Manual, V2, 15.5) Signed-off-by: Lara Lazier --- target/i386/tcg/sysemu/svm_helper.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/target/i386/tcg/sysemu/svm_helper.c b/target/i386/tcg/sysemu/s= vm_helper.c index 2f7606bebf..902bf03fc3 100644 --- a/target/i386/tcg/sysemu/svm_helper.c +++ b/target/i386/tcg/sysemu/svm_helper.c @@ -72,6 +72,7 @@ void helper_vmrun(CPUX86State *env, int aflag, int next_e= ip_addend) uint64_t nested_ctl; uint32_t event_inj; uint32_t int_ctl; + uint32_t asid; =20 cpu_svm_check_intercept_param(env, SVM_EXIT_VMRUN, 0, GETPC()); =20 @@ -154,9 +155,18 @@ void helper_vmrun(CPUX86State *env, int aflag, int nex= t_eip_addend) =20 nested_ctl =3D x86_ldq_phys(cs, env->vm_vmcb + offsetof(struct vmcb, control.nested_c= tl)); + asid =3D x86_ldq_phys(cs, env->vm_vmcb + offsetof(struct vmcb, + control.asid)); =20 env->nested_pg_mode =3D 0; =20 + if (!cpu_svm_has_intercept(env, SVM_EXIT_VMRUN)) { + cpu_vmexit(env, SVM_EXIT_ERR, 0, GETPC()); + } + if (asid =3D=3D 0) { + cpu_vmexit(env, SVM_EXIT_ERR, 0, GETPC()); + } + if (nested_ctl & SVM_NPT_ENABLED) { env->nested_cr3 =3D x86_ldq_phys(cs, env->vm_vmcb + offsetof(struct vmcb, --=20 2.25.1