Re: [kvm-unit-test 3/3] KVM nVMX: Check VM-exit MSR-store address on vmentry of L2 guests

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 





On 12/10/2018 09:26 AM, Jim Mattson wrote:
On Fri, Dec 7, 2018 at 5:52 PM Krish Sadhukhan
<krish.sadhukhan@xxxxxxxxxx> wrote:

exit_msr_store is allocated and is not 0 in this part of the test. For
example, on my x86_64 system, I see the following addresses being tested:

0x1000047900f
0x3000047901e
0x7000047902d
0xf000047903c
0x1f000047904b
0x3f000047905a
0x7f0000479069
0xff0000479078
0x1ff0000479087
0x3ff0000479096
0x7ff00004790a5
0xfff00004790b4
0x1fff00004790c3
0x3fff00004790d2
0x7fff00004790e1
0xffff00004790f0
0x1ffff00004790ff
0x3ffff000047910e
0x7ffff000047911d
0xfffff000047912c
0x1fffff000047913b
0x3fffff000047914a
0x7fffff0000479159
0xffffff0000479168


Here, my goal is to use a real address (returned by alloc_page()) for
the starting byte of exit_msr_store and then make the address of the
last byte invalid by setting a bit in [63:40] in the latter.
Okay. Given that goal:
1) Why do most of these addresses set more than one bit in [63:40]?
2) Why do most of these addresses set illegal bits in [3:0]?

Sorry for the oversight ! Both of these need to be fixed. Thanks !



[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux