7ed9abfe8e9f62384f9b11c9fca19e551dbec5bd - SHIFTPHONES/mainline/linux

commit	7ed9abfe8e9f62384f9b11c9fca19e551dbec5bd	[log] [tgz]
author	Tom Lendacky <thomas.lendacky@amd.com>	Thu Dec 10 11:09:54 2020 -0600
committer	Paolo Bonzini <pbonzini@redhat.com>	Tue Dec 15 05:20:51 2020 -0500
tree	389f9ae52777cd6cefda824b5ddb22afe62334a5
parent	8f423a80d299a5b3964b8af005d1aab4e5e9106a [diff]

KVM: SVM: Support string IO operations for an SEV-ES guest

For an SEV-ES guest, string-based port IO is performed to a shared
(un-encrypted) page so that both the hypervisor and guest can read or
write to it and each see the contents.

For string-based port IO operations, invoke SEV-ES specific routines that
can complete the operation using common KVM port IO support.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <9d61daf0ffda496703717218f415cdc8fd487100.1607620209.git.thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/include/asm/kvm_host.h[diff]
arch/x86/kvm/svm/sev.c[diff]
arch/x86/kvm/svm/svm.c[diff]
arch/x86/kvm/svm/svm.h[diff]
arch/x86/kvm/x86.c[diff]
arch/x86/kvm/x86.h[diff]

6 files changed

tree: 389f9ae52777cd6cefda824b5ddb22afe62334a5