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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-04 12:07:54 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-04 12:07:54 -0800 |
| commit | 24bc5fe716855e5e608c515340b3ceacfb143bcc (patch) | |
| tree | 4ed88464bea46a4c477919d7b88300c225dc2f13 | |
| parent | 412e6d3fec247b2bc83106514b0fb3b17e2eb7fe (diff) | |
| parent | 00c87e9a70a17b355b81c36adedf05e84f54e10d (diff) | |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fix from Radim Krčmář:
"Fix a regression that prevented migration between hosts with different
XSAVE features even if the missing features were not used by the guest
(for stable)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: do not save guest-unsupported XSAVE state
| -rw-r--r-- | arch/x86/kvm/x86.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index d153be8929a6..e52c9088660f 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3182,6 +3182,7 @@ static void fill_xsave(u8 *dest, struct kvm_vcpu *vcpu) memcpy(dest, xsave, XSAVE_HDR_OFFSET); /* Set XSTATE_BV */ + xstate_bv &= vcpu->arch.guest_supported_xcr0 | XFEATURE_MASK_FPSSE; *(u64 *)(dest + XSAVE_HDR_OFFSET) = xstate_bv; /* |