KVM: x86: pass host_initiated to functions that read MSRs

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commit 609e36d372 upstream.

SMBASE is only readable from SMM for the VCPU, but it must be always
accessible if userspace is accessing it.  Thus, all functions that
read MSRs are changed to accept a struct msr_data; the host_initiated
and index fields are pre-initialized, while the data field is filled
on return.

Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[carnil: backport to 3.16, adjust context]
[bwh: Adjust context again after update to 3.16.51]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

...

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Paolo Bonzini 2015-04-08 15:30:38 +02:00 • committed by Ben Hutchings

parent 3b0862bb91

commit ffd18eb002

4 changed files with 118 additions and 97 deletions

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6

arch/x86/include/asm/kvm_host.h

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52

arch/x86/kvm/svm.c

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51

arch/x86/kvm/vmx.c

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106

arch/x86/kvm/x86.c

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