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From: "Radim Krčmář" <rkrcmar@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
	"Lan, Tianyu" <tianyu.lan@intel.com>,
	Igor Mammedov <imammedo@redhat.com>,
	Jan Kiszka <jan.kiszka@web.de>, Peter Xu <peterx@redhat.com>
Subject: [PATCH v1 07/11] KVM: VMX: optimize APIC ID read with APICv
Date: Thu, 30 Jun 2016 22:54:25 +0200	[thread overview]
Message-ID: <20160630205429.16480-8-rkrcmar@redhat.com> (raw)
In-Reply-To: <20160630205429.16480-1-rkrcmar@redhat.com>

The register is in hardware-compatible format now, so there is not need
to intercept.

Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
---
 v1: new, split from the previous patch

 arch/x86/kvm/vmx.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 85e2f0a882ca..a10038258b80 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6447,9 +6447,6 @@ static __init int hardware_setup(void)
 	for (msr = 0x800; msr <= 0x8ff; msr++)
 		vmx_disable_intercept_msr_read_x2apic(msr);
 
-	/* According SDM, in x2apic mode, the whole id reg is used.  But in
-	 * KVM, it only use the highest eight bits. Need to intercept it */
-	vmx_enable_intercept_msr_read_x2apic(0x802);
 	/* TMCCT */
 	vmx_enable_intercept_msr_read_x2apic(0x839);
 	/* TPR */
-- 
2.9.0

  parent reply	other threads:[~2016-06-30 20:55 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-30 20:54 [PATCH v1 00/11] KVM: x86: break the xAPIC barrier Radim Krčmář
2016-06-30 20:54 ` [PATCH v1 01/11] KVM: x86: bump KVM_SOFT_MAX_VCPUS to 240 Radim Krčmář
2016-07-01  8:42   ` Paolo Bonzini
2016-06-30 20:54 ` [PATCH v1 02/11] KVM: x86: add kvm_apic_map_get_dest_lapic Radim Krčmář
2016-07-01  7:57   ` Paolo Bonzini
2016-07-01 12:39     ` Radim Krčmář
2016-06-30 20:54 ` [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Radim Krčmář
2016-06-30 22:15   ` Andrew Honig
2016-07-01  8:42     ` Paolo Bonzini
2016-07-01 12:44       ` Radim Krčmář
2016-07-01 14:03         ` Paolo Bonzini
2016-07-01 14:38           ` Radim Krčmář
2016-07-01 15:06             ` Paolo Bonzini
2016-07-01 15:12               ` Paolo Bonzini
2016-07-01 15:43                 ` Radim Krčmář
2016-07-01 16:38                   ` Paolo Bonzini
2016-07-01 15:35               ` Radim Krčmář
2016-07-01  7:33   ` Paolo Bonzini
2016-06-30 20:54 ` [PATCH v1 04/11] KVM: x86: use u16 for logical VCPU mask in lapic Radim Krčmář
2016-07-01  7:56   ` Paolo Bonzini
2016-07-01 12:48     ` Radim Krčmář
2016-07-01 14:04       ` Paolo Bonzini
2016-06-30 20:54 ` [PATCH v1 05/11] KVM: x86: use generic function for MSI parsing Radim Krčmář
2016-07-01  8:42   ` Paolo Bonzini
2016-06-30 20:54 ` [PATCH v1 06/11] KVM: x86: use hardware-compatible format for APIC ID register Radim Krčmář
2016-07-01  8:33   ` Paolo Bonzini
2016-07-01 13:11     ` Radim Krčmář
2016-07-01 14:12       ` Paolo Bonzini
2016-07-01 14:54         ` Radim Krčmář
2016-07-01 15:07           ` Paolo Bonzini
2016-07-01 15:53             ` Radim Krčmář
2016-07-01 16:37               ` Paolo Bonzini
2016-06-30 20:54 ` Radim Krčmář [this message]
2016-07-01  8:42   ` [PATCH v1 07/11] KVM: VMX: optimize APIC ID read with APICv Paolo Bonzini
2016-06-30 20:54 ` [PATCH v1 08/11] KVM: x86: directly call recalculate_apic_map on lapic restore Radim Krčmář
2016-07-01  8:43   ` Paolo Bonzini
2016-06-30 20:54 ` [PATCH v1 09/11] KVM: x86: reset lapic base in kvm_lapic_reset Radim Krčmář
2016-07-01  8:43   ` Paolo Bonzini
2016-06-30 20:54 ` [PATCH v1 10/11] KVM: x86: add KVM_CAP_X2APIC_API Radim Krčmář
2016-07-01  8:24   ` Paolo Bonzini
2016-07-01 13:25     ` Radim Krčmář
2016-07-01 18:09   ` David Matlack
2016-07-01 18:31     ` Radim Krčmář
2016-06-30 20:54 ` [PATCH v1 11/11] KVM: x86: bump MAX_VCPUS to 288 Radim Krčmář
2016-07-01  8:43   ` Paolo Bonzini

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