diff mbox series

[SRU,J,2/2] Revert "x86/kvm/fpu: Limit guest user_xfeatures to supported bits of XCR0"

Message ID 20230920022235.111762-3-chengen.du@canonical.com
State New
Headers show
Series 5.15.0-85 live migration regression | expand

Commit Message

Chengen Du Sept. 20, 2023, 2:22 a.m. UTC
BugLink: https://bugs.launchpad.net/bugs/2036675

commit ad856280ddea3401e1f5060ef20e6de9f6122c76 upstream.

This reverts commit 27a189b881278c8ad9c16b0ee05668d724352733.

Signed-off-by: Chengen Du <chengen.du@canonical.com>
---
 arch/x86/kvm/cpuid.c | 2 --
 1 file changed, 2 deletions(-)
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Patch

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 89c1b78057e9..b939b94d931f 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -187,8 +187,6 @@  static void kvm_vcpu_after_set_cpuid(struct kvm_vcpu *vcpu)
 		best->ecx |= XFEATURE_MASK_FPSSE;
 	}
 
-	vcpu->arch.guest_fpu.fpstate->user_xfeatures = vcpu->arch.guest_supported_xcr0;
-
 	kvm_update_pv_runtime(vcpu);
 
 	vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);