According to section "Checks on Guest Control Registers, Debug Registers, and
and MSRs" in Intel SDM vol 3C, the following checks are performed on vmentry
of nested guests:
"The IA32_SYSENTER_ESP field and the IA32_SYSENTER_EIP field must each
contain a canonical address."
Patch# 1: Adds the required KVM checks.
Patch# 2: Modifies an existing kvm-unit-test function to suit the new test
being added as part of this KVM check.
Patch# 3: Removes a redundant function from the test suite.
Patch# 4: Adds a kvm-unit-test to validate this new KVM check.
[PATCH 1/4] KVM: nVMX: Check GUEST_SYSENTER_ESP and GUEST_SYSENTER_EIP on
[PATCH 2/4] kvm-unit-test: nVMX: Modify test_canonical() to process guest fields
[PATCH 3/4] kvm-unit-test: nVMX: Remove test_sysenter_field() and use
[PATCH 4/4] kvm-unit-test: nVMX: Test GUEST_SYSENTER_ESP and GUEST_SYSENTER_EIP on
arch/x86/kvm/vmx/nested.c | 4 ++++
1 file changed, 4 insertions(+)
Krish Sadhukhan (1):
nVMX: Check GUEST_SYSENTER_ESP and GUEST_SYSENTER_EIP on vmentry of nested guests
x86/vmx_tests.c | 85 ++++++++++++++++++++++++++++++--------------------------
1 file changed, 46 insertions(+), 39 deletions(-)
Krish Sadhukhan (3):
nVMX: Modify test_canonical() to process guest fields also
nVMX: Remove test_sysenter_field() and use test_canonical() instead
nVMX: Test GUEST_SYSENTER_ESP and GUEST_SYSENTER_EIP on vmentry of nested guests
