KVM: VMX: Require KVM_SET_TSS_ADDR being called prior to running a VCPU

Browse source

Very old user space (namely qemu-kvm before kvm-49) didn't set the TSS
base before running the VCPU. We always warned about this bug, but no
reports about users actually seeing this are known. Time to finally
remove the workaround that effectively prevented to call vmx_vcpu_reset
while already holding the KVM srcu lock.

Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

...

This commit is contained in:

Jan Kiszka 2013-03-15 08:38:56 +01:00 • committed by Marcelo Tosatti

parent 982b3394dd

commit 4918c6ca68

1 changed files with 4 additions and 26 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

30

arch/x86/kvm/vmx.c

View file