KVM: VMX: Preserve callee-save registers in vCPU-run asm sub-routine

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...to make it callable from C code.

Note that because KVM chooses to be ultra paranoid about guest register
values, all callee-save registers are still cleared after VM-Exit even
though the host's values are now reloaded from the stack.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

...

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Sean Christopherson 2019-01-25 07:41:18 -08:00 • committed by Paolo Bonzini

parent e75c3c3a04

commit 3b895ef486

2 changed files with 22 additions and 4 deletions

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21

arch/x86/kvm/vmx/vmenter.S

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5

arch/x86/kvm/vmx/vmx.c

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