qemu-kvm/SOURCES/kvm-i386-sev-Invoke-launch_updata_data-for-SEV-class.patch

From be37914ae54c8aebc218cf41b37bc0ea1563daae Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 31 May 2024 12:51:44 +0200
Subject: [PATCH 074/100] i386/sev: Invoke launch_updata_data() for SEV class

RH-Author: Paolo Bonzini <pbonzini@redhat.com>
RH-MergeRequest: 245: SEV-SNP support
RH-Jira: RHEL-39544
RH-Acked-by: Thomas Huth <thuth@redhat.com>
RH-Acked-by: Bandan Das <bdas@redhat.com>
RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
RH-Commit: [74/91] f1b588a9ffecd6944a78186d88a6be3849698710 (bonzini/rhel-qemu-kvm)

Add launch_update_data() in SevCommonStateClass and
invoke as sev_launch_update_data() for SEV object.

Signed-off-by: Pankaj Gupta <pankaj.gupta@amd.com>
Message-ID: <20240530111643.1091816-26-pankaj.gupta@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 9861405a8f845133b7984322c2df0c43a45553c3)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/sev.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/target/i386/sev.c b/target/i386/sev.c
index 7b5c4b4874..8834cf9441 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -74,6 +74,7 @@ struct SevCommonStateClass {
     /* public */
     int (*launch_start)(SevCommonState *sev_common);
     void (*launch_finish)(SevCommonState *sev_common);
+    int (*launch_update_data)(SevCommonState *sev_common, hwaddr gpa, uint8_t *ptr, uint64_t len);
     int (*kvm_init)(ConfidentialGuestSupport *cgs, Error **errp);
 };
 
@@ -929,7 +930,7 @@ out:
 }
 
 static int
-sev_launch_update_data(SevGuestState *sev_guest, uint8_t *addr, uint64_t len)
+sev_launch_update_data(SevCommonState *sev_common, hwaddr gpa, uint8_t *addr, uint64_t len)
 {
     int ret, fw_error;
     struct kvm_sev_launch_update_data update;
@@ -941,7 +942,7 @@ sev_launch_update_data(SevGuestState *sev_guest, uint8_t *addr, uint64_t len)
     update.uaddr = (uintptr_t)addr;
     update.len = len;
     trace_kvm_sev_launch_update_data(addr, len);
-    ret = sev_ioctl(SEV_COMMON(sev_guest)->sev_fd, KVM_SEV_LAUNCH_UPDATE_DATA,
+    ret = sev_ioctl(sev_common->sev_fd, KVM_SEV_LAUNCH_UPDATE_DATA,
                     &update, &fw_error);
     if (ret) {
         error_report("%s: LAUNCH_UPDATE ret=%d fw_error=%d '%s'",
@@ -1487,6 +1488,7 @@ int
 sev_encrypt_flash(hwaddr gpa, uint8_t *ptr, uint64_t len, Error **errp)
 {
     SevCommonState *sev_common = SEV_COMMON(MACHINE(qdev_get_machine())->cgs);
+    SevCommonStateClass *klass = SEV_COMMON_GET_CLASS(sev_common);
 
     if (!sev_common) {
         return 0;
@@ -1494,7 +1496,9 @@ sev_encrypt_flash(hwaddr gpa, uint8_t *ptr, uint64_t len, Error **errp)
 
     /* if SEV is in update state then encrypt the data else do nothing */
     if (sev_check_state(sev_common, SEV_STATE_LAUNCH_UPDATE)) {
-        int ret = sev_launch_update_data(SEV_GUEST(sev_common), ptr, len);
+        int ret;
+
+        ret = klass->launch_update_data(sev_common, gpa, ptr, len);
         if (ret < 0) {
             error_setg(errp, "SEV: Failed to encrypt pflash rom");
             return ret;
@@ -1968,6 +1972,7 @@ sev_guest_class_init(ObjectClass *oc, void *data)
 
     klass->launch_start = sev_launch_start;
     klass->launch_finish = sev_launch_finish;
+    klass->launch_update_data = sev_launch_update_data;
     klass->kvm_init = sev_kvm_init;
     x86_klass->kvm_type = sev_kvm_type;
 
-- 
2.39.3