From: "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@amd.com>
To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Cc: "joro@8bytes.org" <joro@8bytes.org>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"rkrcmar@redhat.com" <rkrcmar@redhat.com>,
"Suthikulpanit, Suravee" <Suravee.Suthikulpanit@amd.com>
Subject: [PATCH 0/6] KVM/x86: Add workaround to support ExtINT with AVIC
Date: Fri, 22 Mar 2019 11:57:22 +0000 [thread overview]
Message-ID: <20190322115702.10166-1-suravee.suthikulpanit@amd.com> (raw)
This series is one of the prerequisites for supporting AMD AVIC with
in-kernel irqchip (kernel_irqchip=on).
Since AVIC does not support ExtINT interrupt, which is required during
the booting phase of Windows and FreeBSD VMs (e.g. PIT -> PIC -> ExtInt).
This results in VM hang in the boot loader with kernel_irqchip=on mode.
This series provides workaround by temporary deactivate AVIC and fallback
to use legacy interrupt injection (w/ vINTR and interrupt window).
Then re-activate AVIC once the intrrupts are handled.
Thanks,
Suravee
Suravee Suthikulpanit (6):
KVM: x86: Add callback functions for handling APIC ID, DFR and LDR
update
svm: Add AMD AVIC handlers for APIC ID, DFR and LDR update
svm: Add support for APIC_ACCESS_PAGE_PRIVATE_MEMSLOT setup/destroy
kvm: lapic: Add apicv activate/deactivate helper function
KVM: x86: Add interface for run-time activate/de-activate APIC
virtualization
svm: Temporary deactivate AVIC during ExtINT handling
arch/x86/include/asm/kvm_host.h | 11 ++++
arch/x86/kvm/lapic.c | 29 +++++++--
arch/x86/kvm/lapic.h | 1 +
arch/x86/kvm/svm.c | 106 ++++++++++++++++++++++++++++++--
arch/x86/kvm/x86.c | 48 +++++++++++++++
5 files changed, 185 insertions(+), 10 deletions(-)
--
2.17.1
next reply other threads:[~2019-03-22 12:48 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-22 11:57 Suthikulpanit, Suravee [this message]
2019-03-22 11:57 ` [PATCH 1/6] KVM: x86: Add callback functions for handling APIC ID, DFR and LDR update Suthikulpanit, Suravee
2019-07-03 21:16 ` Paolo Bonzini
2019-07-17 19:44 ` Suthikulpanit, Suravee
2019-03-22 11:57 ` [PATCH 2/6] svm: Add AMD AVIC handlers for " Suthikulpanit, Suravee
2019-03-22 11:57 ` [PATCH 3/6] svm: Add support for APIC_ACCESS_PAGE_PRIVATE_MEMSLOT setup/destroy Suthikulpanit, Suravee
2019-05-08 19:14 ` Jan H. Schönherr
2019-06-30 16:19 ` Suthikulpanit, Suravee
2019-03-22 11:57 ` [PATCH 4/6] kvm: lapic: Add apicv activate/deactivate helper function Suthikulpanit, Suravee
2019-05-08 22:27 ` Jan H. Schönherr
2019-07-15 22:35 ` Suthikulpanit, Suravee
2019-03-22 11:57 ` [PATCH 5/6] KVM: x86: Add interface for run-time activate/de-activate APIC virtualization Suthikulpanit, Suravee
2019-05-08 20:45 ` Jan H. Schönherr
2019-03-22 11:57 ` [PATCH 6/6] svm: Temporary deactivate AVIC during ExtINT handling Suthikulpanit, Suravee
2019-05-08 17:37 ` Jan H. Schönherr
2019-06-03 18:58 ` Suthikulpanit, Suravee
2019-04-04 21:30 ` [PATCH 0/6] KVM/x86: Add workaround to support ExtINT with AVIC rkrcmar
2019-04-04 22:06 ` rkrcmar
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