From: Sean Christopherson <seanjc@google.com>
To: mlevitsk@redhat.com
Cc: Paolo Bonzini <pbonzini@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Adrian Hunter <adrian.hunter@intel.com>
Subject: Re: [PATCH v6 8/8] KVM: VMX: Preserve host's DEBUGCTLMSR_FREEZE_IN_SMM while running the guest
Date: Thu, 10 Jul 2025 16:11:36 -0700 [thread overview]
Message-ID: <aHBIqCNLrRZjBt0N@google.com> (raw)
In-Reply-To: <cda50cdf2329b5de76c6cdbf97f248f77ab5a55a.camel@redhat.com>
On Thu, Jun 26, 2025, mlevitsk@redhat.com wrote:
> On Thu, 2025-06-26 at 09:17 -0700, Sean Christopherson wrote:
> > --
> > From: Sean Christopherson <seanjc@google.com>
> > Date: Thu, 26 Jun 2025 09:14:20 -0700
> > Subject: [PATCH] KVM: VMX: Add a macro to track which DEBUGCTL bits are
> > host-owned
> >
> > Add VMX_HOST_OWNED_DEBUGCTL_BITS to track which bits are host-owned, i.e.
> > need to be preserved when running the guest, to dedup the logic without
> > having to incur a memory load to get at kvm_x86_ops.HOST_OWNED_DEBUGCTL.
> >
> > No functional change intended.
> >
> > Suggested-by: Maxim Levitsky <mlevitsk@redhat.com>
> > Signed-off-by: Sean Christopherson <seanjc@google.com>
> > ---
...
> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Applied to kvm-x86 misc, thanks!
[1/1] KVM: VMX: Add a macro to track which DEBUGCTL bits are host-owned
https://github.com/kvm-x86/linux/commit/e1ef1c57ff70
next prev parent reply other threads:[~2025-07-10 23:11 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-10 23:20 [PATCH v6 0/8] KVM: VMX: Preserve host's DEBUGCTL.FREEZE_IN_SMM Sean Christopherson
2025-06-10 23:20 ` [PATCH v6 1/8] KVM: TDX: Use kvm_arch_vcpu.host_debugctl to restore the host's DEBUGCTL Sean Christopherson
2025-06-11 9:29 ` Adrian Hunter
2025-06-10 23:20 ` [PATCH v6 2/8] KVM: x86: Convert vcpu_run()'s immediate exit param into a generic bitmap Sean Christopherson
2025-06-10 23:20 ` [PATCH v6 3/8] KVM: x86: Drop kvm_x86_ops.set_dr6() in favor of a new KVM_RUN flag Sean Christopherson
2025-06-10 23:20 ` [PATCH v6 4/8] KVM: VMX: Allow guest to set DEBUGCTL.RTM_DEBUG if RTM is supported Sean Christopherson
2025-06-10 23:20 ` [PATCH v6 5/8] KVM: VMX: Extract checking of guest's DEBUGCTL into helper Sean Christopherson
2025-06-11 8:55 ` Mi, Dapeng
2025-06-10 23:20 ` [PATCH v6 6/8] KVM: nVMX: Check vmcs12->guest_ia32_debugctl on nested VM-Enter Sean Christopherson
2025-06-10 23:20 ` [PATCH v6 7/8] KVM: VMX: Wrap all accesses to IA32_DEBUGCTL with getter/setter APIs Sean Christopherson
2025-06-11 8:58 ` Mi, Dapeng
2025-06-10 23:20 ` [PATCH v6 8/8] KVM: VMX: Preserve host's DEBUGCTLMSR_FREEZE_IN_SMM while running the guest Sean Christopherson
2025-06-24 19:59 ` mlevitsk
2025-06-26 16:17 ` Sean Christopherson
2025-06-26 17:07 ` mlevitsk
2025-07-10 23:11 ` Sean Christopherson [this message]
2025-06-24 19:38 ` [PATCH v6 0/8] KVM: VMX: Preserve host's DEBUGCTL.FREEZE_IN_SMM Sean Christopherson
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