tree: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue head: 0e67722dd743e8218b4fc7924a1ab4ffda781517 commit: 8de182e8f597f4ec81a6fca865fb709c0753ca53 [20/31] KVM: nVMX: expose VPID capability to L1 config: i386-randconfig-x006-201539 (attached as .config) reproduce: git checkout 8de182e8f597f4ec81a6fca865fb709c0753ca53 # save the attached .config to linux build tree make ARCH=i386
All warnings (new ones prefixed by >>):
arch/x86/kvm/vmx.c: In function 'nested_vmx_setup_ctls_msrs':
>> arch/x86/kvm/vmx.c:2502:78: warning: left shift count >= width of type
>> [-Wshift-count-overflow]
vmx->nested.nested_vmx_ept_vpid_caps |= (unsigned
long)vmx_capability.vpid << 32;
^
vim +2502 arch/x86/kvm/vmx.c
2486 SECONDARY_EXEC_XSAVES;
2487
2488 if (enable_ept | enable_vpid) {
2489 /* nested EPT: emulate EPT also to L1 */
2490 vmx->nested.nested_vmx_secondary_ctls_high |=
2491 SECONDARY_EXEC_ENABLE_EPT;
2492 vmx->nested.nested_vmx_ept_vpid_caps =
VMX_EPT_PAGE_WALK_4_BIT |
2493 VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT |
2494 VMX_EPT_INVEPT_BIT;
2495 vmx->nested.nested_vmx_ept_vpid_caps &=
vmx_capability.ept;
2496 /*
2497 * For nested guests, we don't do anything specific
2498 * for single context invalidation. Hence, only
advertise
2499 * support for global context invalidation.
2500 */
2501 vmx->nested.nested_vmx_ept_vpid_caps |=
VMX_EPT_EXTENT_GLOBAL_BIT;
> 2502 vmx->nested.nested_vmx_ept_vpid_caps |= (unsigned
> long)vmx_capability.vpid << 32;
2503 } else
2504 vmx->nested.nested_vmx_ept_vpid_caps = 0;
2505
2506 if (enable_unrestricted_guest)
2507 vmx->nested.nested_vmx_secondary_ctls_high |=
2508 SECONDARY_EXEC_UNRESTRICTED_GUEST;
2509
2510 /* miscellaneous data */
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: Binary data
