From: "Radim Krčmář" <rkrcmar@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
Wanpeng Li <wanpeng.li@linux.intel.com>
Subject: Re: [PATCH 9/9] kvm: vmx: add nested virtualization support for xsaves
Date: Thu, 4 Dec 2014 19:08:07 +0100 [thread overview]
Message-ID: <20141204180806.GF18651@potion.brq.redhat.com> (raw)
In-Reply-To: <1417708634-24333-10-git-send-email-pbonzini@redhat.com>
2014-12-04 16:57+0100, Paolo Bonzini:
> From: Wanpeng Li <wanpeng.li@linux.intel.com>
>
> Add vmcs12 support for xsaves.
>
> Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
> + case EXIT_REASON_XSAVES: case EXIT_REASON_XRSTORS:
> + /*
> + * This should never happen, since it is not possible to
> + * set XSS to a non-zero value---neither in L1 nor in L2.
> + * If if it were, XSS would have to be checked against
> + * the XSS exit bitmap in vmcs12.
> + */
We could WARN then.
> + return nested_cpu_has2(vmcs12, SECONDARY_EXEC_XSAVES);
> default:
> return 1;
> }
next prev parent reply other threads:[~2014-12-04 18:08 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-04 15:57 [PATCH 0/9] Final set of XSAVES patches Paolo Bonzini
2014-12-04 15:57 ` [PATCH 1/9] x86: export get_xsave_addr Paolo Bonzini
2014-12-04 16:34 ` Greg KH
2014-12-04 17:29 ` Paolo Bonzini
2014-12-04 15:57 ` [PATCH 2/9] KVM: x86: support XSAVES usage in the host Paolo Bonzini
2014-12-04 17:56 ` Radim Krčmář
2014-12-04 15:57 ` [PATCH 3/9] KVM: x86: use F() macro throughout cpuid.c Paolo Bonzini
2014-12-04 15:57 ` [PATCH 4/9] kvm: x86: Add kvm_x86_ops hook that enables XSAVES for guest Paolo Bonzini
2014-12-05 13:32 ` Radim Krčmář
2014-12-04 15:57 ` [PATCH 5/9] KVM: cpuid: set CPUID(EAX=0xd,ECX=1).EBX correctly Paolo Bonzini
2014-12-05 0:40 ` Wanpeng Li
2014-12-04 15:57 ` [PATCH 6/9] KVM: cpuid: mask more bits in leaf 0xd and subleaves Paolo Bonzini
2014-12-05 0:34 ` Wanpeng Li
2014-12-05 1:20 ` Wanpeng Li
2014-12-04 15:57 ` [PATCH 7/9] kvm: x86: handle XSAVES vmcs and vmexit Paolo Bonzini
2014-12-04 18:06 ` Radim Krčmář
2014-12-04 15:57 ` [PATCH 8/9] kvm: vmx: add MSR logic for XSAVES Paolo Bonzini
2014-12-04 18:05 ` Radim Krčmář
2014-12-04 18:07 ` Radim Krčmář
2014-12-04 15:57 ` [PATCH 9/9] kvm: vmx: add nested virtualization support for xsaves Paolo Bonzini
2014-12-04 18:08 ` Radim Krčmář [this message]
2014-12-05 1:15 ` [PATCH 0/9] Final set of XSAVES patches Wanpeng Li
2014-12-05 7:27 ` Paolo Bonzini
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