From: Adalbert Lazar <alazar@bitdefender.com>
To: kvm@vger.kernel.org
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
alazar@bitdefender.com, mdontu@bitdefender.com
Subject: [RFC PATCH 14/19] kvm: x86: Hook in kvmi_xsetbv_event()
Date: Fri, 16 Jun 2017 16:43:43 +0300 [thread overview]
Message-ID: <20170616134348.17725-15-alazar@bitdefender.com> (raw)
In-Reply-To: <20170616134348.17725-1-alazar@bitdefender.com>
From: Mihai Dontu <mdontu@bitdefender.com>
Notify the guest introspection tool that the extended control register
has been changed.
Signed-off-by: Mihai Dontu <mdontu@bitdefender.com>
---
arch/x86/kvm/x86.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 5298f93412db..248fb7e99423 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -728,6 +728,10 @@ static int __kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
if ((xcr0 & XFEATURE_MASK_AVX512) != XFEATURE_MASK_AVX512)
return 1;
}
+
+ if (xcr0 != old_xcr0)
+ kvmi_xsetbv_event(vcpu, xcr);
+
vcpu->arch.xcr0 = xcr0;
if ((xcr0 ^ old_xcr0) & XFEATURE_MASK_EXTEND)
--
2.12.2
next prev parent reply other threads:[~2017-06-16 13:44 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-16 13:43 [RFC PATCH 00/19] Guest introspection Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 01/19] kvm: x86: mmu: Add kvm_mmu_get_spte() and kvm_mmu_set_spte() Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 02/19] kvm: x86: Add kvm_arch_vcpu_set_regs() Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 03/19] mm: Add vm_replace_page() Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 04/19] kvm: Add kvm_enum() Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 05/19] kvm: Add uuid member in struct kvm + support for KVM_CAP_VM_UUID Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 06/19] kvm: Add kvm_vm_shutdown() Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 07/19] kvm: x86: Add kvm_arch_msr_intercept() Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 08/19] kvm: Add the introspection subsystem Adalbert Lazar
2017-06-21 11:54 ` Paolo Bonzini
2017-06-21 12:36 ` Mihai Donțu
2017-06-21 12:57 ` Paolo Bonzini
2017-06-16 13:43 ` [RFC PATCH 09/19] kvm: Hook in kvmi on VM on/off events Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 10/19] kvm: vmx: Hook in kvmi_page_fault() Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 11/19] kvm: x86: Hook in kvmi_breakpoint_event() Adalbert Lazar
2017-06-21 11:48 ` Paolo Bonzini
2017-06-21 12:37 ` Mihai Donțu
2017-06-16 13:43 ` [RFC PATCH 12/19] kvm: x86: Hook in kvmi_trap_event() Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 13/19] kvm: x86: Hook in kvmi_cr_event() Adalbert Lazar
2017-06-16 13:43 ` Adalbert Lazar [this message]
2017-06-16 13:43 ` [RFC PATCH 15/19] kvm: x86: Hook in kvmi_msr_event() Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 16/19] kvm: x86: Change the emulation context Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 17/19] kvm: x86: Hook in kvmi_vmcall_event() Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 18/19] kvm: x86: Set the new spte flags before entering the guest Adalbert Lazar
2017-06-16 13:43 ` [RFC PATCH 19/19] kvm: x86: Handle KVM_REQ_INTROSPECTION Adalbert Lazar
2017-06-16 14:45 ` [RFC PATCH 00/19] Guest introspection Jan Kiszka
2017-06-16 15:18 ` Mihai Donțu
2017-06-16 15:34 ` Jan Kiszka
2017-06-16 15:59 ` Mihai Donțu
2017-06-19 9:39 ` Stefan Hajnoczi
2017-06-20 14:58 ` alazar
2017-06-20 15:03 ` Jan Kiszka
2017-06-21 11:04 ` Stefan Hajnoczi
2017-06-21 13:25 ` Paolo Bonzini
2017-06-27 16:12 ` Mihai Donțu
2017-06-27 16:23 ` Paolo Bonzini
2017-06-16 17:05 ` Paolo Bonzini
2017-06-16 17:27 ` Jan Kiszka
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170616134348.17725-15-alazar@bitdefender.com \
--to=alazar@bitdefender.com \
--cc=kvm@vger.kernel.org \
--cc=mdontu@bitdefender.com \
--cc=pbonzini@redhat.com \
--cc=rkrcmar@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox