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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'


             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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