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Groups > linux.kernel > #1441809
| From | Bandan Das <bsd@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 5/5] vmx: advertise support for ept execute only |
| Date | 2016-07-13 00:30 +0200 |
| Message-ID | <rUelI-2F3-29@gated-at.bofh.it> (permalink) |
| References | <rUec2-2Bd-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
MMU now knows about execute only mappings, so advertise the feature to L1 hypervisors Signed-off-by: Bandan Das <bsd@redhat.com> --- arch/x86/kvm/vmx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index f73b5dc..2c49355f 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2717,6 +2717,9 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx) vmx->nested.nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT | VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT | VMX_EPT_INVEPT_BIT; + if (cpu_has_vmx_ept_execute_only()) + vmx->nested.nested_vmx_ept_caps |= + VMX_EPT_EXECUTE_ONLY_BIT; vmx->nested.nested_vmx_ept_caps &= vmx_capability.ept; /* * For nested guests, we don't do anything specific -- 2.5.5
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[PATCH v2 0/5] Add support for EPT execute only for nested hypervisors Bandan Das <bsd@redhat.com> - 2016-07-13 00:20 +0200
[PATCH v2 2/5] mmu: don't set the present bit unconditionally Bandan Das <bsd@redhat.com> - 2016-07-13 00:30 +0200
Re: [PATCH v2 2/5] mmu: don't set the present bit unconditionally Paolo Bonzini <pbonzini@redhat.com> - 2016-07-13 10:20 +0200
[PATCH v2 4/5] mmu: change unconditional setting of the u bit in fault bitmap Bandan Das <bsd@redhat.com> - 2016-07-13 00:30 +0200
Re: [PATCH v2 4/5] mmu: change unconditional setting of the u bit in fault bitmap Paolo Bonzini <pbonzini@redhat.com> - 2016-07-13 10:30 +0200
Re: [PATCH v2 4/5] mmu: change unconditional setting of the u bit in fault bitmap Paolo Bonzini <pbonzini@redhat.com> - 2016-07-13 11:10 +0200
[PATCH v2 3/5] mmu: remove is_present_gpte() Bandan Das <bsd@redhat.com> - 2016-07-13 00:30 +0200
[PATCH v2 5/5] vmx: advertise support for ept execute only Bandan Das <bsd@redhat.com> - 2016-07-13 00:30 +0200
Re: [PATCH v2 0/5] Add support for EPT execute only for nested hypervisors Paolo Bonzini <pbonzini@redhat.com> - 2016-07-13 11:30 +0200
Re: [PATCH v2 0/5] Add support for EPT execute only for nested hypervisors Fam Zheng <famz@redhat.com> - 2016-07-13 12:00 +0200
Re: [PATCH v2 0/5] Add support for EPT execute only for nested hypervisors Paolo Bonzini <pbonzini@redhat.com> - 2016-07-13 12:10 +0200
Re: [PATCH v2 0/5] Add support for EPT execute only for nested hypervisors Bandan Das <bsd@redhat.com> - 2016-07-13 17:10 +0200
Re: [PATCH v2 0/5] Add support for EPT execute only for nested hypervisors Paolo Bonzini <pbonzini@redhat.com> - 2016-07-13 17:30 +0200
Re: [PATCH v2 0/5] Add support for EPT execute only for nested hypervisors Bandan Das <bsd@redhat.com> - 2016-07-13 17:50 +0200
Re: [PATCH v2 0/5] Add support for EPT execute only for nested hypervisors Paolo Bonzini <pbonzini@redhat.com> - 2016-07-14 09:00 +0200
Re: [PATCH v2 0/5] Add support for EPT execute only for nested hypervisors Bandan Das <bsd@redhat.com> - 2016-07-14 19:40 +0200
Re: [PATCH v2 0/5] Add support for EPT execute only for nested hypervisors Paolo Bonzini <pbonzini@redhat.com> - 2016-07-14 20:30 +0200
Re: [PATCH v2 0/5] Add support for EPT execute only for nested hypervisors Bandan Das <bsd@redhat.com> - 2016-07-14 21:00 +0200
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