[PATCH 12/29] qemu_firmware: Parse host-uefi-vars firmware feature

29 Dec 2025

When present in a firmware descriptor, this feature indicates that
the corresponding executable expects to access variable storage
through the uefi-vars QEMU device.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
---
 src/qemu/qemu_firmware.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/qemu/qemu_firmware.c b/src/qemu/qemu_firmware.c
index 1b97cdb316..309ec3f349 100644
--- a/src/qemu/qemu_firmware.c
+++ b/src/qemu/qemu_firmware.c
@@ -163,6 +163,7 @@ typedef enum {
     QEMU_FIRMWARE_FEATURE_ENROLLED_KEYS,
     QEMU_FIRMWARE_FEATURE_REQUIRES_SMM,
     QEMU_FIRMWARE_FEATURE_SECURE_BOOT,
+    QEMU_FIRMWARE_FEATURE_HOST_UEFI_VARS,
     QEMU_FIRMWARE_FEATURE_VERBOSE_DYNAMIC,
     QEMU_FIRMWARE_FEATURE_VERBOSE_STATIC,
 
@@ -182,6 +183,7 @@ VIR_ENUM_IMPL(qemuFirmwareFeature,
               "enrolled-keys",
               "requires-smm",
               "secure-boot",
+              "host-uefi-vars",
               "verbose-dynamic",
               "verbose-static"
 );
@@ -1294,6 +1296,7 @@ qemuFirmwareMatchDomain(const virDomainDef *def,
             hasEnrolledKeys = true;
             break;
 
+        case QEMU_FIRMWARE_FEATURE_HOST_UEFI_VARS:
         case QEMU_FIRMWARE_FEATURE_VERBOSE_DYNAMIC:
         case QEMU_FIRMWARE_FEATURE_VERBOSE_STATIC:
         case QEMU_FIRMWARE_FEATURE_NONE:
@@ -1652,6 +1655,7 @@ qemuFirmwareEnableFeaturesModern(virDomainDef *def,
         case QEMU_FIRMWARE_FEATURE_AMD_SEV_ES:
         case QEMU_FIRMWARE_FEATURE_AMD_SEV_SNP:
         case QEMU_FIRMWARE_FEATURE_INTEL_TDX:
+        case QEMU_FIRMWARE_FEATURE_HOST_UEFI_VARS:
         case QEMU_FIRMWARE_FEATURE_VERBOSE_DYNAMIC:
         case QEMU_FIRMWARE_FEATURE_VERBOSE_STATIC:
         case QEMU_FIRMWARE_FEATURE_NONE:
@@ -1707,6 +1711,7 @@ qemuFirmwareSanityCheck(const qemuFirmware *fw,
         case QEMU_FIRMWARE_FEATURE_NONE:
         case QEMU_FIRMWARE_FEATURE_ACPI_S3:
         case QEMU_FIRMWARE_FEATURE_ACPI_S4:
+        case QEMU_FIRMWARE_FEATURE_HOST_UEFI_VARS:
         case QEMU_FIRMWARE_FEATURE_VERBOSE_DYNAMIC:
         case QEMU_FIRMWARE_FEATURE_VERBOSE_STATIC:
         case QEMU_FIRMWARE_FEATURE_LAST:
@@ -2200,6 +2205,7 @@ qemuFirmwareGetSupported(const char *machine,
             case QEMU_FIRMWARE_FEATURE_INTEL_TDX:
             case QEMU_FIRMWARE_FEATURE_ENROLLED_KEYS:
             case QEMU_FIRMWARE_FEATURE_SECURE_BOOT:
+            case QEMU_FIRMWARE_FEATURE_HOST_UEFI_VARS:
             case QEMU_FIRMWARE_FEATURE_VERBOSE_DYNAMIC:
             case QEMU_FIRMWARE_FEATURE_VERBOSE_STATIC:
             case QEMU_FIRMWARE_FEATURE_LAST:
-- 
2.52.0

    