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| author | Tom Lendacky <thomas.lendacky@amd.com> | 2020-12-10 11:09:54 -0600 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-12-15 05:20:51 -0500 |
| commit | 7ed9abfe8e9f62384f9b11c9fca19e551dbec5bd (patch) | |
| tree | 389f9ae52777cd6cefda824b5ddb22afe62334a5 /arch/x86/include | |
| parent | 8f423a80d299a5b3964b8af005d1aab4e5e9106a (diff) | |
| download | linux-7ed9abfe8e9f62384f9b11c9fca19e551dbec5bd.tar.gz linux-7ed9abfe8e9f62384f9b11c9fca19e551dbec5bd.tar.bz2 linux-7ed9abfe8e9f62384f9b11c9fca19e551dbec5bd.zip | |
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>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 18aa15e6fadd..1c8c59d4a572 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -614,6 +614,7 @@ struct kvm_vcpu_arch { struct kvm_pio_request pio; void *pio_data; + void *guest_ins_data; u8 event_exit_inst_len; |