From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
"K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
Arnd Bergmann <arnd@arndb.de>
Cc: Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
kvm@vger.kernel.org, linux-hyperv@vger.kernel.org,
linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
Ajay Garg <ajaygargnsit@gmail.com>
Subject: [PATCH v2 0/8] KVM: x86: Hyper-V hypercall fix and cleanups
Date: Fri, 29 Oct 2021 17:07:52 -0700 [thread overview]
Message-ID: <20211030000800.3065132-1-seanjc@google.com> (raw)
Fix a bug where KVM incorrectly skips an "all_cpus" IPI request, and misc
cleanups and enhancements for KVM handling of Hyper-V hypercalls.
Note, I couldn't find any documentation on the DEBUG hypercalls, I'm
basically just guessing that they don't have a variable sized header
and thus should reject hypercalls with a non-zero VARHEAD field.
Sean Christopherson (8):
KVM: x86: Ignore sparse banks size for an "all CPUs", non-sparse IPI
req
KVM: x86: Get the number of Hyper-V sparse banks from the VARHEAD
field
KVM: x86: Refactor kvm_hv_flush_tlb() to reduce indentation
KVM: x86: Add a helper to get the sparse VP_SET for IPIs and TLB
flushes
KVM: x86: Don't bother reading sparse banks that end up being ignored
KVM: x86: Shove vp_bitmap handling down into sparse_set_to_vcpu_mask()
KVM: x86: Reject fixeds-size Hyper-V hypercalls with non-zero
"var_cnt"
KVM: x86: Add checks for reserved-to-zero Hyper-V hypercall fields
arch/x86/kvm/hyperv.c | 172 ++++++++++++++++++------------
arch/x86/kvm/trace.h | 14 +--
include/asm-generic/hyperv-tlfs.h | 7 ++
3 files changed, 120 insertions(+), 73 deletions(-)
--
2.33.1.1089.g2158813163f-goog
next reply other threads:[~2021-10-30 0:08 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-30 0:07 Sean Christopherson [this message]
2021-10-30 0:07 ` [PATCH v2 1/8] KVM: x86: Ignore sparse banks size for an "all CPUs", non-sparse IPI req Sean Christopherson
2021-11-01 9:05 ` Vitaly Kuznetsov
2021-10-30 0:07 ` [PATCH v2 2/8] KVM: x86: Get the number of Hyper-V sparse banks from the VARHEAD field Sean Christopherson
2021-11-01 9:52 ` Vitaly Kuznetsov
2021-10-30 0:07 ` [PATCH v2 3/8] KVM: x86: Refactor kvm_hv_flush_tlb() to reduce indentation Sean Christopherson
2021-11-01 10:00 ` Vitaly Kuznetsov
2021-12-03 23:45 ` Sean Christopherson
2021-10-30 0:07 ` [PATCH v2 4/8] KVM: x86: Add a helper to get the sparse VP_SET for IPIs and TLB flushes Sean Christopherson
2021-11-01 10:06 ` Vitaly Kuznetsov
2021-10-30 0:07 ` [PATCH v2 5/8] KVM: x86: Don't bother reading sparse banks that end up being ignored Sean Christopherson
2021-11-01 9:46 ` Vitaly Kuznetsov
2021-10-30 0:07 ` [PATCH v2 6/8] KVM: x86: Shove vp_bitmap handling down into sparse_set_to_vcpu_mask() Sean Christopherson
2021-11-01 10:12 ` Vitaly Kuznetsov
2021-10-30 0:07 ` [PATCH v2 7/8] KVM: x86: Reject fixeds-size Hyper-V hypercalls with non-zero "var_cnt" Sean Christopherson
2021-11-01 10:27 ` Vitaly Kuznetsov
2021-12-03 23:48 ` Sean Christopherson
2021-10-30 0:08 ` [PATCH v2 8/8] KVM: x86: Add checks for reserved-to-zero Hyper-V hypercall fields Sean Christopherson
2021-11-01 10:33 ` Vitaly Kuznetsov
2021-12-02 2:13 ` Sean Christopherson
2021-12-02 15:16 ` Michael Kelley (LINUX)
2021-12-03 14:09 ` ** POTENTIAL FRAUD ALERT - RED HAT ** " Vitaly Kuznetsov
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