From abcae3cd62726850d4f6b6e2ad616514fc48d9bc Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Tue, 12 Oct 2021 10:22:34 -0400
Subject: [PATCH] KVM: SEV-ES: rename guest_ins_data to sev_pio_data
Git-commit: b5998402e3de429b5e5f9bdea08ddf77c5fd661e
Patch-mainline: v5.15-rc7
References: stable-5.14.15
commit b5998402e3de429b5e5f9bdea08ddf77c5fd661e upstream.
We will be using this field for OUTS emulation as well, in case the
data that is pushed via OUTS spans more than one page. In that case,
there will be a need to save the data pointer across exits to userspace.
So, change the name to something that refers to any kind of PIO.
Also spell out what it is used for, namely SEV-ES.
No functional change intended.
Cc: stable@vger.kernel.org
Fixes: 7ed9abfe8e9f ("KVM: SVM: Support string IO operations for an SEV-ES guest")
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
arch/x86/include/asm/kvm_host.h | 2 +-
arch/x86/kvm/x86.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index af6ce8d4c86a..e7fa1c951f6d 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -695,7 +695,7 @@ struct kvm_vcpu_arch {
struct kvm_pio_request pio;
void *pio_data;
- void *guest_ins_data;
+ void *sev_pio_data;
u8 event_exit_inst_len;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4b0e866e9f08..d9e46593b3e4 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -12322,7 +12322,7 @@ EXPORT_SYMBOL_GPL(kvm_sev_es_mmio_read);
static int complete_sev_es_emulated_ins(struct kvm_vcpu *vcpu)
{
- memcpy(vcpu->arch.guest_ins_data, vcpu->arch.pio_data,
+ memcpy(vcpu->arch.sev_pio_data, vcpu->arch.pio_data,
vcpu->arch.pio.count * vcpu->arch.pio.size);
vcpu->arch.pio.count = 0;
@@ -12354,7 +12354,7 @@ static int kvm_sev_es_ins(struct kvm_vcpu *vcpu, unsigned int size,
if (ret) {
vcpu->arch.pio.count = 0;
} else {
- vcpu->arch.guest_ins_data = data;
+ vcpu->arch.sev_pio_data = data;
vcpu->arch.complete_userspace_io = complete_sev_es_emulated_ins;
}
--
2.26.2