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charset=us-ascii Content-Disposition: inline X-Rspamd-Server: rspam03 X-Rspam-User: X-Rspamd-Queue-Id: 11E6AA0012 X-Stat-Signature: s81nghyuebafegf4mycfxthmyj97jo5u X-HE-Tag: 1726297009-726093 X-HE-Meta: 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 16h0vbsc 7zC96I+C+KDkO0nlDs0MDzD1AmqtWY7Yi+D+w0+ayI2CLyT3KmGos06Tp2WZGoGXz173XPs97VXg0xtNxNn6LF7RdwVpZE68JKzS1LNr2QGhexdAUqmYo6J3QGkGj0smFRqVV+U7M4fEpBsV4xv3ftFlcDCb3paTGh3lJjghW/SzDhmNCIUagwtuekAhM0CVnyfTpA129EvW2QWqqZbm/d0CdOjY/B6MDVzNf0KiZtgNMuZF5uRev2+4FUcxFTAQtY1e92+tTlMlTXfIgHoiLn1CMtrexqg4PVrUWHYIt/siWYnTjEOIGW1Cd3dimBAoGg0ToHMRgiHrdLlF/Z5/4ZqSRkRJabqNZQqJHbsidfMaYZxfbaeV4lsW47vOBUwQRPpRz X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 5acd9952f95fb4b7da6d09a3be39195a80845eb6 commit: 3f6821aa147b6e6fe07e8b35999724518b74a632 [10436/11962] KVM: x86: Forcibly leave nested if RSM to L2 hits shutdown config: i386-randconfig-141-20240914 (https://download.01.org/0day-ci/archive/20240914/202409141449.UcocWbNb-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202409141449.UcocWbNb-lkp@intel.com/ New smatch warnings: arch/x86/kvm/smm.c:651 emulator_leave_smm() warn: inconsistent indenting Old smatch warnings: arch/x86/kvm/smm.c:300 enter_smm() warn: inconsistent indenting vim +651 arch/x86/kvm/smm.c 625 626 /* 627 * FIXME: When resuming L2 (a.k.a. guest mode), the transition to guest 628 * mode should happen _after_ loading state from SMRAM. However, KVM 629 * piggybacks the nested VM-Enter flows (which is wrong for many other 630 * reasons), and so nSVM/nVMX would clobber state that is loaded from 631 * SMRAM and from the VMCS/VMCB. 632 */ 633 if (kvm_x86_call(leave_smm)(vcpu, &smram)) 634 return X86EMUL_UNHANDLEABLE; 635 636 #ifdef CONFIG_X86_64 637 if (guest_cpuid_has(vcpu, X86_FEATURE_LM)) 638 ret = rsm_load_state_64(ctxt, &smram.smram64); 639 else 640 #endif 641 ret = rsm_load_state_32(ctxt, &smram.smram32); 642 643 /* 644 * If RSM fails and triggers shutdown, architecturally the shutdown 645 * occurs *before* the transition to guest mode. But due to KVM's 646 * flawed handling of RSM to L2 (see above), the vCPU may already be 647 * in_guest_mode(). Force the vCPU out of guest mode before delivering 648 * the shutdown, so that L1 enters shutdown instead of seeing a VM-Exit 649 * that architecturally shouldn't be possible. 650 */ > 651 if (ret != X86EMUL_CONTINUE && is_guest_mode(vcpu)) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki