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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 v2 12/13] KVM: x86: bump MAX_VCPUS to 288
Date: Thu,  7 Jul 2016 19:15:49 +0200	[thread overview]
Message-ID: <20160707171550.14675-13-rkrcmar@redhat.com> (raw)
In-Reply-To: <20160707171550.14675-1-rkrcmar@redhat.com>

288 is in high demand because of Knights Landing CPU.
We cannot set the limit to 640k, because that would be wasting space.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
---
 v2: r-b Paolo

 arch/x86/include/asm/kvm_host.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index f1b202b34c72..e362de872139 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -34,7 +34,7 @@
 #include <asm/asm.h>
 #include <asm/kvm_page_track.h>
 
-#define KVM_MAX_VCPUS 255
+#define KVM_MAX_VCPUS 288
 #define KVM_SOFT_MAX_VCPUS 240
 #define KVM_USER_MEM_SLOTS 509
 /* memory slots that are not exposed to userspace */
-- 
2.9.0

  parent reply	other threads:[~2016-07-07 17:17 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-07 17:15 [PATCH v2 00/13] KVM: x86: break the xAPIC barrier Radim Krčmář
2016-07-07 17:15 ` [PATCH v2 01/13] KVM: x86: bump KVM_SOFT_MAX_VCPUS to 240 Radim Krčmář
2016-07-07 17:15 ` [PATCH v2 02/13] KVM: x86: add kvm_apic_map_get_dest_lapic Radim Krčmář
2016-07-07 17:15 ` [PATCH v2 03/13] KVM: x86: use physical LAPIC array for logical x2APIC Radim Krčmář
2016-07-07 17:15 ` [PATCH v2 04/13] KVM: x86: dynamic kvm_apic_map Radim Krčmář
2016-07-11  6:07   ` Yang Zhang
2016-07-11  7:43     ` Paolo Bonzini
2016-07-11 10:14       ` Yang Zhang
2016-07-11 13:48         ` Radim Krčmář
2016-07-11 14:14           ` Paolo Bonzini
2016-07-11 15:52             ` Radim Krčmář
2016-07-11 16:04               ` Paolo Bonzini
2016-07-12  3:27               ` Yang Zhang
2016-07-07 17:15 ` [PATCH v2 05/13] KVM: x86: use generic function for MSI parsing Radim Krčmář
2016-07-07 17:15 ` [PATCH v2 06/13] KVM: x86: use hardware-compatible format for APIC ID register Radim Krčmář
2016-07-07 17:15 ` [PATCH v2 07/13] KVM: x86: reset APIC ID when enabling LAPIC Radim Krčmář
2016-07-07 17:15 ` [PATCH v2 08/13] KVM: VMX: optimize APIC ID read with APICv Radim Krčmář
2016-07-07 17:15 ` [PATCH v2 09/13] KVM: x86: reset lapic base in kvm_lapic_reset Radim Krčmář
2016-07-07 17:15 ` [PATCH v2 10/13] KVM: pass struct kvm to kvm_set_routing_entry Radim Krčmář
2016-07-07 17:15 ` [PATCH v2 11/13] KVM: x86: add KVM_CAP_X2APIC_API Radim Krčmář
2016-07-11  6:06   ` Yang Zhang
2016-07-11  7:44     ` Paolo Bonzini
2016-07-11  8:56       ` Yang Zhang
2016-07-11  9:17         ` Paolo Bonzini
2016-07-11 10:33           ` Yang Zhang
2016-07-11 10:40             ` Paolo Bonzini
2016-07-07 17:15 ` Radim Krčmář [this message]
2016-07-07 17:15 ` [PATCH v2 13/13] KVM: x86: bump KVM_MAX_VCPU_ID to 1023 Radim Krčmář
2016-07-08 10:00 ` [PATCH v2 00/13] KVM: x86: break the xAPIC barrier Paolo Bonzini
2016-07-08 16:29 ` Radim Krčmář
2016-07-08 16:30   ` Paolo Bonzini

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