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target-i386: add support for SMBASE MSR and SMIs

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Apart from the MSR, the smi field of struct kvm_vcpu_events has to be
translated into the corresponding CPUX86State fields. Also,
memory transaction flags depend on SMM state, so pull it from struct
kvm_run on every exit from KVM to userspace.

Backports relevant parts of commit fc12d72e10828ca6ff75f2ad432b741f07a10cef from qemu
This commit is contained in:
Paolo Bonzini 2018-02-14 08:46:24 -05:00 committed by Lioncash
parent a6ea34ee0c
commit 6153671333
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qemu/target-i386/cpu.h
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@ -313,6 +313,7 @@
#define MSR_P6_PERFCTR0 0xc1
#define MSR_IA32_SMBASE 0x9e
#define MSR_MTRRcap 0xfe
#define MSR_MTRRcap_VCNT 8
#define MSR_MTRRcap_FIXRANGE_SUPPORT (1 << 8)