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From: Paolo Bonzini <pbonzini@redhat.com>
To: "Radim Krčmář" <rkrcmar@redhat.com>,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: "Lan, Tianyu" <tianyu.lan@intel.com>,
	Igor Mammedov <imammedo@redhat.com>,
	Jan Kiszka <jan.kiszka@web.de>, Peter Xu <peterx@redhat.com>
Subject: Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map
Date: Fri, 1 Jul 2016 09:33:12 +0200	[thread overview]
Message-ID: <cb1a6135-d891-df68-916b-9c4215d75b7a@redhat.com> (raw)
In-Reply-To: <20160630205429.16480-4-rkrcmar@redhat.com>



On 30/06/2016 22:54, Radim Krčmář wrote:
> x2APIC supports up to 2^32-1 LAPICs, but most guest in coming years will
> have slighly less VCPUs.  Dynamic size saves memory at the cost of
> turning one constant into a variable.
> 
> apic_map mutex had to be moved before allocation to avoid races with cpu
> hotplug.
> 
> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>

It's important to note another change here, which is that you start
using the phys_map for x2apic clustered mode.  It's so important that
you could make it a separate patch while keeping the phys_map static! :)

Paolo

  parent reply	other threads:[~2016-07-01  7:33 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 [this message]
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 ` [PATCH v1 07/11] KVM: VMX: optimize APIC ID read with APICv Radim Krčmář
2016-07-01  8:42   ` 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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