From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: kvm@vger.kernel.org
Cc: x86@kernel.org, "Paolo Bonzini" <pbonzini@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
"Roman Kagan" <rkagan@virtuozzo.com>,
"K. Y. Srinivasan" <kys@microsoft.com>,
"Haiyang Zhang" <haiyangz@microsoft.com>,
"Stephen Hemminger" <sthemmin@microsoft.com>,
"Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>,
"Mohammed Gamal" <mmorsy@redhat.com>,
"Cathy Avery" <cavery@redhat.com>,
"Wanpeng Li" <wanpeng.li@hotmail.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/5] KVM: x86: hyperv: PV IPI support for Windows guests
Date: Thu, 28 Jun 2018 15:53:08 +0200 [thread overview]
Message-ID: <20180628135313.17468-1-vkuznets@redhat.com> (raw)
Changes since v1 [Radim Krčmář]:
- Implement VP_IDX -> VCPU_IDX mapping, use it for both PV IPIs and
TLB flush (PATCHes 1-3 added)
- Minor tweaks.
Using hypercall for sending IPIs is faster because this allows to specify
any number of vCPUs (even > 64 with sparse CPU set), the whole procedure
will take only one VMEXIT.
Same as PV TLB flush, this allows Windows guests having > 64 vCPUs to boot
on KVM when Hyper-V extensions are enabled.
Vitaly Kuznetsov (5):
KVM: x86: hyperv: optimize 'all cpus' case in kvm_hv_flush_tlb()
KVM: x86: hyperv: introduce vp_index_to_vcpu_idx mapping
KVM: x86: hyperv: use vp_idx_to_vcpu_idx() in kvm_hv_flush_tlb()
x86/hyper-v: rename ipi_arg_{ex,non_ex} structures
KVM: x86: hyperv: implement PV IPI send hypercalls
Documentation/virtual/kvm/api.txt | 8 +
arch/x86/hyperv/hv_apic.c | 12 +-
arch/x86/include/asm/hyperv-tlfs.h | 16 +-
arch/x86/include/asm/kvm_host.h | 12 ++
arch/x86/kvm/hyperv.c | 375 ++++++++++++++++++++++++++++++-------
arch/x86/kvm/trace.h | 42 +++++
arch/x86/kvm/x86.c | 1 +
include/uapi/linux/kvm.h | 1 +
virt/kvm/kvm_main.c | 6 +-
9 files changed, 391 insertions(+), 82 deletions(-)
--
2.14.4
next reply other threads:[~2018-06-28 13:53 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-28 13:53 Vitaly Kuznetsov [this message]
2018-06-28 13:53 ` [PATCH v2 1/5] KVM: x86: hyperv: optimize 'all cpus' case in kvm_hv_flush_tlb() Vitaly Kuznetsov
2018-06-28 13:53 ` [PATCH v2 2/5] KVM: x86: hyperv: introduce vp_index_to_vcpu_idx mapping Vitaly Kuznetsov
2018-06-28 18:49 ` kbuild test robot
2018-06-28 19:09 ` [PATCH] KVM: x86: hyperv: fix semicolon.cocci warnings kbuild test robot
2018-06-28 19:09 ` [PATCH v2 2/5] KVM: x86: hyperv: introduce vp_index_to_vcpu_idx mapping kbuild test robot
2018-06-29 10:11 ` Roman Kagan
2018-06-29 10:26 ` Vitaly Kuznetsov
2018-06-29 11:12 ` Roman Kagan
2018-06-29 11:37 ` Vitaly Kuznetsov
2018-06-29 12:52 ` Roman Kagan
2018-06-29 13:10 ` Vitaly Kuznetsov
2018-06-29 14:32 ` Roman Kagan
2018-06-29 15:25 ` Vitaly Kuznetsov
2018-06-29 15:55 ` Roman Kagan
2018-06-28 13:53 ` [PATCH v2 3/5] KVM: x86: hyperv: use vp_idx_to_vcpu_idx() in kvm_hv_flush_tlb() Vitaly Kuznetsov
2018-06-28 13:53 ` [PATCH v2 4/5] x86/hyper-v: rename ipi_arg_{ex,non_ex} structures Vitaly Kuznetsov
2018-06-28 13:53 ` [PATCH v2 5/5] KVM: x86: hyperv: implement PV IPI send hypercalls Vitaly Kuznetsov
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