KVM: VMX: Fix IBRS handling after vmexit
commit bea7e31a upstream. For legacy IBRS to work, the IBRS bit needs to be always re-written after vmexit, even if it's already on. Signed-off-by: NJosh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: NBorislav Petkov <bp@suse.de> Signed-off-by: NThadeu Lima de Souza Cascardo <cascardo@canonical.com> Signed-off-by: NSuleiman Souhlal <suleiman@google.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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