Re: [PATCH v2 2/3] conf,qemu: implement RISC-V 'aia' virt domain feature

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On Wed, Jan 22, 2025 at 12:17:01PM -0300, Daniel Henrique Barboza wrote:
This feature is implemented as a string that can range from "none",
"aplic" and "aplic-imsic".

If the feature isn't present in the domain XML the hypervisor default
will be used. For QEMU, at least up to 9.2, the default is "none".

Signed-off-by: Daniel Henrique Barboza <dbarboza@xxxxxxxxxxxxxxxx>
---
docs/formatdomain.rst             |  8 +++++++
src/conf/domain_conf.c            | 40 +++++++++++++++++++++++++++++++
src/conf/domain_conf.h            | 12 ++++++++++
src/conf/schemas/domaincommon.rng | 15 ++++++++++++
src/libvirt_private.syms          |  2 ++
src/qemu/qemu_validate.c          | 15 ++++++++++++
6 files changed, 92 insertions(+)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 3f88a77a8f..5e7b9edf8f 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -17171,6 +17180,18 @@ virDomainFeaturesDefParse(virDomainDef *def,
            break;
        }

+        case VIR_DOMAIN_FEATURE_AIA: {
+            virDomainAIA value;
+
+            if (virXMLPropEnumDefault(nodes[i], "value", virDomainAIATypeFromString,
+                                      VIR_XML_PROP_NONZERO, &value,
+                                      VIR_DOMAIN_AIA_NONE) < 0)

This should be changed to VIR_DOMAIN_AIA_DEFAULT

diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c
index 086c66b602..0a086d9cf4 100644
--- a/src/qemu/qemu_validate.c
+++ b/src/qemu/qemu_validate.c
@@ -264,6 +264,21 @@ qemuValidateDomainDefFeatures(const virDomainDef *def,
            }
            break;

+        case VIR_DOMAIN_FEATURE_AIA:
+            if (def->features[i] != VIR_TRISTATE_SWITCH_ABSENT &&
+                !qemuDomainIsRISCVVirt(def)) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                               _("aia feature is only supported with RISC-V Virt machines"));
+                return -1;
+            }
+            if (def->features[i] != VIR_TRISTATE_SWITCH_ABSENT &&

Copy-paste error.  Even though this would work I'd rather you used
VIR_DOMAIN_AIA_DEFAULT in both of the conditions above instead of the
VIR_TRISTATE value.

With the changes:

Reviewed-by: Martin Kletzander <mkletzan@xxxxxxxxxx>

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