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authorPaolo Bonzini <pbonzini@redhat.com>2014-08-18 15:15:51 +0400
committerPaolo Bonzini <pbonzini@redhat.com>2014-08-19 17:12:28 +0400
commit9a4cfb27f7233610c5ddc82329c26d39683fad72 (patch)
treebc07f3fc14295c10037ec7adc6b0444f25515740 /arch/x86/include/asm/kvm_host.h
parent3a6095a0173ad8f20c508446880558c9f9224324 (diff)
downloadlinux-9a4cfb27f7233610c5ddc82329c26d39683fad72.tar.xz
KVM: x86: do not check CS.DPL against RPL during task switch
This reverts the check added by commit 5045b468037d (KVM: x86: check CS.DPL against RPL during task switch, 2014-05-15). Although the CS.DPL=CS.RPL check is mentioned in table 7-1 of the SDM as causing a #TSS exception, it is not mentioned in table 6-6 that lists "invalid TSS conditions" which cause #TSS exceptions. In fact it causes some tests to fail, which pass on bare-metal. Keep the rest of the commit, since we will find new uses for it in 3.18. Reported-by: Nadav Amit <namit@cs.technion.ac.il> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
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