linux-kernel - [PATCH 0/4] KVM: nSVM: first step towards fixing event injection

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Message-Id: <1583403227-11432-1-git-send-email-pbonzini@redhat.com>
Date:   Thu,  5 Mar 2020 11:13:43 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:     cavery@...hat.com, vkuznets@...hat.com, jan.kiszka@...mens.com,
        wei.huang2@....com
Subject: [PATCH 0/4] KVM: nSVM: first step towards fixing event injection

Event injection in nSVM does not use check_nested_events, which means it
is basically broken.  As a first step, this fixes interrupt injection
which is probably the most complicated case due to the interactions
with V_INTR_MASKING and the host EFLAGS.IF.

This series fixes Cathy's test case that I have sent earlier.

Paolo

Paolo Bonzini (4):
  KVM: nSVM: do not change host intercepts while nested VM is running
  KVM: nSVM: ignore L1 interrupt window while running L2 with
    V_INTR_MASKING=1
  KVM: nSVM: implement check_nested_events for interrupts
  KVM: nSVM: avoid loss of pending IRQ/NMI before entering L2

 arch/x86/kvm/svm.c | 172 ++++++++++++++++++++++++++++++++---------------------
 1 file changed, 103 insertions(+), 69 deletions(-)

-- 
1.8.3.1