v2 -> v3:
Patch# 1: It's a new patch for SVM. It fixes the SVM bug that advances
the RIP following the #VMEXIT from a VMRUN that is being
single-stepped.
Patch# 2: It's a new patch for the test framework. It adds a utility
function to read the current RIP.
Patch# 3: It's a new patch for the test framework. It adds an
assembly label to the VMRUN instruction so that the RIP
of VMRUN can be known to tests.
Patch# 4: It's the updated test from v2. The test uses the VMRUN
instruction label, added by the previous patch, in order
know its RIP. The part of the test that tests single-stepping
on VMRUN, uses the difference between the VMRUN RIP and its
next RIP, in order to determine success.
[PATCH 1/4 v3] KVM: nSVM: Do not advance RIP following VMRUN completion if the
[PATCH 2/4 v3] KVM: X86: Add a utility function to read current RIP
[PATCH 3/4 v3] KVM: nSVM: Add assembly label to VMRUN instruction
[PATCH 4/4 v3] KVM: nSVM: Test effect of host RFLAGS.TF on VMRUN
arch/x86/kvm/svm/svm.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
Krish Sadhukhan (1):
nSVM: Do not advance RIP following VMRUN completion if the latter is single-stepped
lib/x86/processor.h | 7 ++++
x86/svm.c | 16 ++++++--
x86/svm_tests.c | 115 ++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 134 insertions(+), 4 deletions(-)
Krish Sadhukhan (3):
KVM: X86: Add a utility function to read current RIP
KVM: nSVM: Add assembly label to VMRUN instruction
nSVM: Test effect of host RFLAGS.TF on VMRUN
