From: "Radim Krčmář" <rkrcmar@redhat.com>
To: 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 9/9] KVM: bump MAX_VCPUS
Date: Fri, 6 May 2016 22:54:05 +0200 [thread overview]
Message-ID: <1462568045-31085-10-git-send-email-rkrcmar@redhat.com> (raw)
In-Reply-To: <1462568045-31085-1-git-send-email-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.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
---
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 c93c4a7877ed..c776b741b0db 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 160
#define KVM_USER_MEM_SLOTS 509
/* memory slots that are not exposed to userspace */
--
2.8.2
prev parent reply other threads:[~2016-05-06 20:54 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-06 20:53 [RFC 0/9] KVM: x86: break the xAPIC barrier Radim Krčmář
2016-05-06 20:53 ` [PATCH 1/9] KVM: x86: add kvm_apic_map_get_dest_lapic Radim Krčmář
2016-05-19 6:36 ` Peter Xu
2016-05-25 16:02 ` Radim Krčmář
2016-05-26 11:58 ` Peter Xu
2016-05-06 20:53 ` [PATCH 2/9] KVM: x86: dynamic kvm_apic_map Radim Krčmář
2016-05-23 8:04 ` Peter Xu
2016-05-25 16:15 ` Radim Krčmář
2016-05-30 5:24 ` Peter Xu
2016-05-06 20:53 ` [PATCH 3/9] KVM: x86: use u16 for logical VCPU mask in lapic Radim Krčmář
2016-05-06 20:54 ` [PATCH 4/9] KVM: x86: use generic function for MSI parsing Radim Krčmář
2016-05-06 20:54 ` [PATCH 5/9] KVM: support x2APIC ID in userspace routes Radim Krčmář
2016-05-06 20:54 ` [PATCH 6/9] KVM: x86: directly call recalculate_apic_map on lapic restore Radim Krčmář
2016-05-23 8:30 ` Peter Xu
2016-05-06 20:54 ` [PATCH 7/9] KVM: x86: use proper format of APIC ID register Radim Krčmář
2016-05-17 15:34 ` Paolo Bonzini
2016-05-25 16:30 ` Radim Krčmář
2016-05-06 20:54 ` [PATCH 8/9] KVM: x86: reset lapic base in kvm_lapic_reset Radim Krčmář
2016-05-06 20:54 ` Radim Krčmář [this message]
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