From: Krish Sadhukhan <krish.sadhukhan@oracle.com>
To: kvm@vger.kernel.org
Cc: pbonzini@redhat.com, jmattson@google.com, seanjc@google.com
Subject: [PATCH 0/3] KVM: nSVM: Check addresses of MSR bitmap and IO bitmap tables on vmrun of nested guests
Date: Wed, 13 Jan 2021 02:46:30 +0000 [thread overview]
Message-ID: <20210113024633.8488-1-krish.sadhukhan@oracle.com> (raw)
According to section "Canonicalization and Consistency Checks" in APM vol 2,
the following guest state is illegal:
"The MSR or IOIO intercept tables extend to a physical address that
is greater than or equal to the maximum supported physical address."
Patch# 1: Adds the KVM checks.
Patch# 2: Adds a test
Patch# 3: Replaces a hard-coded value with an available macro.
[PATCH 1/3] KVM: nSVM: Check addresses of MSR and IO bitmap
[PATCH 2/3] Test: nSVM: Test MSR and IO bitmap address
[PATCH 3/3] Test: SVM: Use ALIGN macro when aligning 'io_bitmap_area'
arch/x86/kvm/svm/nested.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
Krish Sadhukhan (1):
nSVM: Check addresses of MSR and IO bitmap
x86/svm.c | 2 +-
x86/svm_tests.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 39 insertions(+), 1 deletion(-)
Krish Sadhukhan (2):
nSVM: Test MSR and IO bitmap address
SVM: Use ALIGN macro when aligning 'io_bitmap_area'
next reply other threads:[~2021-01-13 2:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-13 2:46 Krish Sadhukhan [this message]
2021-01-13 2:46 ` [PATCH 1/3] KVM: nSVM: Check addresses of MSR and IO bitmap Krish Sadhukhan
2021-01-13 17:43 ` Sean Christopherson
2021-01-13 2:46 ` [PATCH 2/3] Test: nSVM: Test MSR and IO bitmap address Krish Sadhukhan
2021-01-13 2:46 ` [PATCH 3/3] Test: SVM: Use ALIGN macro when aligning 'io_bitmap_area' Krish Sadhukhan
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