9:08 a.m.
Hi,
This series adds official support for RISC-V AIA (Advanced Interrupt
Architecture). AIA and has been supported by the 'virt' RISC-V board, as
a machine property, since QEMU 7.0.
Daniel Henrique Barboza (3):
qemu: add capability for RISC-V AIA feature
conf,qemu: implement RISC-V 'aia' virt domain feature
qemu: add RISC-V 'aia' command line
docs/formatdomain.rst | 8 ++++
src/conf/domain_conf.c | 39 +++++++++++++++++++
src/conf/domain_conf.h | 11 ++++++
src/conf/schemas/domaincommon.rng | 15 +++++++
src/libvirt_private.syms | 2 +
src/qemu/qemu_capabilities.c | 2 +
src/qemu/qemu_capabilities.h | 1 +
src/qemu/qemu_command.c | 5 +++
src/qemu/qemu_validate.c | 15 +++++++
.../caps_8.0.0_riscv64.xml | 1 +
.../caps_9.1.0_riscv64.xml | 1 +
...cv64-virt-features-aia.riscv64-latest.args | 31 +++++++++++++++
...scv64-virt-features-aia.riscv64-latest.xml | 1 +
.../riscv64-virt-features-aia.xml | 27 +++++++++++++
tests/qemuxmlconftest.c | 2 +
15 files changed, 161 insertions(+)
create mode 100644 tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.args
create mode 120000 tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.xml
create mode 100644 tests/qemuxmlconfdata/riscv64-virt-features-aia.xml
--
2.45.2
9:08 a.m.
New subject: [PATCH 1/3] qemu: add capability for RISC-V AIA feature
AIA (Advanced Interrupt Architecture) support was introduced in QEMU 7.0
for the 'virt' machine type. It allows the guest to choose from a more
modern interrupt model than the default (CLINT - Core Logical Interrupt
Controller).
Signed-off-by: Daniel Henrique Barboza <dbarboza(a)ventanamicro.com>
---
src/qemu/qemu_capabilities.c | 2 ++
src/qemu/qemu_capabilities.h | 1 +
tests/qemucapabilitiesdata/caps_8.0.0_riscv64.xml | 1 +
tests/qemucapabilitiesdata/caps_9.1.0_riscv64.xml | 1 +
4 files changed, 5 insertions(+)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 9322ae9ae6..7b6d881c39 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -719,6 +719,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
/* 465 */
"snapshot-internal-qmp", /* QEMU_CAPS_SNAPSHOT_INTERNAL_QMP */
"chardev-reconnect-miliseconds", /*
QEMU_CAPS_CHARDEV_RECONNECT_MILISECONDS */
+ "machine.virt.aia", /* QEMU_CAPS_MACHINE_VIRT_AIA */
);
@@ -1748,6 +1749,7 @@ static struct virQEMUCapsStringFlags
virQEMUCapsMachinePropsPSeries[] = {
static struct virQEMUCapsStringFlags virQEMUCapsMachinePropsVirt[] = {
{ "iommu", QEMU_CAPS_MACHINE_VIRT_IOMMU },
{ "ras", QEMU_CAPS_MACHINE_VIRT_RAS },
+ { "aia", QEMU_CAPS_MACHINE_VIRT_AIA },
};
static struct virQEMUCapsStringFlags virQEMUCapsMachinePropsGeneric[] = {
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 54c7e30903..d38ab4df28 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -698,6 +698,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check
*/
/* 465 */
QEMU_CAPS_SNAPSHOT_INTERNAL_QMP, /* internal snapshot support via QMP commands
'snapshot-save'/'snapshot-delete' */
QEMU_CAPS_CHARDEV_RECONNECT_MILISECONDS, /* 'reconnect-ms' option for
chardevs supported */
+ QEMU_CAPS_MACHINE_VIRT_AIA, /* -machine virt,aia=(none|aplic|aplic-imsic), RISC-V
only */
QEMU_CAPS_LAST /* this must always be the last item */
} virQEMUCapsFlags;
diff --git a/tests/qemucapabilitiesdata/caps_8.0.0_riscv64.xml
b/tests/qemucapabilitiesdata/caps_8.0.0_riscv64.xml
index 7959d49c02..0207637ebc 100644
--- a/tests/qemucapabilitiesdata/caps_8.0.0_riscv64.xml
+++ b/tests/qemucapabilitiesdata/caps_8.0.0_riscv64.xml
@@ -142,6 +142,7 @@
<flag name='usb-mtp'/>
<flag name='netdev.user'/>
<flag name='snapshot-internal-qmp'/>
+ <flag name='machine.virt.aia'/>
<version>7002050</version>
<microcodeVersion>0</microcodeVersion>
<package>v7.2.0-333-g222059a0fc</package>
diff --git a/tests/qemucapabilitiesdata/caps_9.1.0_riscv64.xml
b/tests/qemucapabilitiesdata/caps_9.1.0_riscv64.xml
index 1e7b1e622b..bb6fbbe098 100644
--- a/tests/qemucapabilitiesdata/caps_9.1.0_riscv64.xml
+++ b/tests/qemucapabilitiesdata/caps_9.1.0_riscv64.xml
@@ -168,6 +168,7 @@
<flag name='netdev.user'/>
<flag name='acpi-erst'/>
<flag name='snapshot-internal-qmp'/>
+ <flag name='machine.virt.aia'/>
<version>9001000</version>
<microcodeVersion>0</microcodeVersion>
<package>v9.1.0</package>
--
2.45.2
9:08 a.m.
New subject: [PATCH 2/3] conf,qemu: implement RISC-V 'aia' virt domain feature
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(a)ventanamicro.com>
---
docs/formatdomain.rst | 8 +++++++
src/conf/domain_conf.c | 39 +++++++++++++++++++++++++++++++
src/conf/domain_conf.h | 11 +++++++++
src/conf/schemas/domaincommon.rng | 15 ++++++++++++
src/libvirt_private.syms | 2 ++
src/qemu/qemu_validate.c | 15 ++++++++++++
6 files changed, 90 insertions(+)
diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst
index 3253a28e5a..780cea9aba 100644
--- a/docs/formatdomain.rst
+++ b/docs/formatdomain.rst
@@ -2028,6 +2028,7 @@ Hypervisors may allow certain CPU / machine features to be toggled
on/off.
<async-teardown enabled='yes'/>
<ras state='on'/>
<ps2 state='on'/>
+ <aia value='aplic-imsic'/>
</features>
...
@@ -2275,6 +2276,13 @@ are:
disable the emulation of a PS/2 controller used by ``ps2`` bus input devices.
If the attribute is not defined, the hypervisor default will be used.
:since:`Since 10.7.0` (QEMU only)
+``aia``
+ Configure aia (Advanced Interrupt Architecture) for RISC-V 'virt'
+ guests. Possible values for the ``value`` attribute are ``aplic`` (one
+ emulated APLIC device present per socket), ``aplic-imsic`` (one APLIC and
+ one IMSIC device present per core), or ``none`` (no support for AIA).
+ If the attribute is not defined, the hypervisor default
+ will be used. :since:`Since 10.8.0` (QEMU/KVM and RISC-V guests only)
Time keeping
------------
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 6d7dee7956..1a677c47d7 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -186,6 +186,7 @@ VIR_ENUM_IMPL(virDomainFeature,
"async-teardown",
"ras",
"ps2",
+ "aia",
);
VIR_ENUM_IMPL(virDomainCapabilitiesPolicy,
@@ -1522,6 +1523,13 @@ VIR_ENUM_IMPL(virDomainPstoreBackend,
"acpi-erst",
);
+VIR_ENUM_IMPL(virDomainAIA,
+ VIR_DOMAIN_AIA_LAST,
+ "none",
+ "aplic",
+ "aplic-imsic",
+);
+
typedef enum {
VIR_DOMAIN_NET_VHOSTUSER_MODE_NONE,
VIR_DOMAIN_NET_VHOSTUSER_MODE_CLIENT,
@@ -17040,6 +17048,18 @@ 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)
+ return -1;
+
+ def->features[val] = value;
+ break;
+ }
+
case VIR_DOMAIN_FEATURE_TCG:
if (virDomainFeaturesTCGDefParse(def, ctxt, nodes[i]) < 0)
return -1;
@@ -21007,6 +21027,17 @@ virDomainDefFeaturesCheckABIStability(virDomainDef *src,
}
break;
+ case VIR_DOMAIN_FEATURE_AIA:
+ if (src->features[i] != dst->features[i]) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("State of feature '%1$s' differs: source:
'%2$s=%3$s', destination: '%4$s=%5$s'"),
+ featureName,
+ "value",
virDomainAIATypeToString(src->features[i]),
+ "value",
virDomainAIATypeToString(dst->features[i]));
+ return false;
+ }
+ break;
+
case VIR_DOMAIN_FEATURE_MSRS:
case VIR_DOMAIN_FEATURE_TCG:
case VIR_DOMAIN_FEATURE_ASYNC_TEARDOWN:
@@ -28001,6 +28032,14 @@ virDomainDefFormatFeatures(virBuffer *buf,
virTristateBoolTypeToString(def->features[i]));
break;
+ case VIR_DOMAIN_FEATURE_AIA:
+ if (def->features[i] == VIR_DOMAIN_AIA_NONE)
+ break;
+
+ virBufferAsprintf(&childBuf, "<aia
value='%s'/>\n",
+ virDomainAIATypeToString(def->features[i]));
+ break;
+
case VIR_DOMAIN_FEATURE_LAST:
break;
}
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index a15af4fae3..3cc019eb90 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2182,6 +2182,7 @@ typedef enum {
VIR_DOMAIN_FEATURE_ASYNC_TEARDOWN,
VIR_DOMAIN_FEATURE_RAS,
VIR_DOMAIN_FEATURE_PS2,
+ VIR_DOMAIN_FEATURE_AIA,
VIR_DOMAIN_FEATURE_LAST
} virDomainFeature;
@@ -2398,6 +2399,16 @@ typedef enum {
VIR_ENUM_DECL(virDomainIBS);
+typedef enum {
+ VIR_DOMAIN_AIA_NONE = 0,
+ VIR_DOMAIN_AIA_APLIC,
+ VIR_DOMAIN_AIA_APLIC_IMSIC,
+
+ VIR_DOMAIN_AIA_LAST
+} virDomainAIA;
+
+VIR_ENUM_DECL(virDomainAIA);
+
typedef struct _virDomainFeatureKVM virDomainFeatureKVM;
struct _virDomainFeatureKVM {
int features[VIR_DOMAIN_KVM_LAST];
diff --git a/src/conf/schemas/domaincommon.rng b/src/conf/schemas/domaincommon.rng
index efb5f00d77..203b2ca979 100644
--- a/src/conf/schemas/domaincommon.rng
+++ b/src/conf/schemas/domaincommon.rng
@@ -6922,6 +6922,9 @@
<ref name="featurestate"/>
</element>
</optional>
+ <optional>
+ <ref name="aia"/>
+ </optional>
</interleave>
</element>
</optional>
@@ -7220,6 +7223,18 @@
</element>
</define>
+ <define name="aia">
+ <element name="aia">
+ <attribute name="value">
+ <choice>
+ <value>none</value>
+ <value>aplic</value>
+ <value>aplic-imsic</value>
+ </choice>
+ </attribute>
+ </element>
+ </define>
+
<define name="address">
<element name="address">
<choice>
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 5fb4df3513..deb4ef5ba6 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -229,6 +229,8 @@ virDiskNameParse;
virDiskNameToBusDeviceIndex;
virDiskNameToIndex;
virDomainActualNetDefFree;
+virDomainAIATypeFromString;
+virDomainAIATypeToString;
virDomainAudioDefFree;
virDomainAudioFormatTypeFromString;
virDomainAudioFormatTypeToString;
diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c
index fa23c5f973..8f44205667 100644
--- a/src/qemu/qemu_validate.c
+++ b/src/qemu/qemu_validate.c
@@ -265,6 +265,21 @@ 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 &&
+ !virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_VIRT_AIA)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("aia feature is not available with this QEMU
binary"));
+ return -1;
+ }
+ break;
+
case VIR_DOMAIN_FEATURE_SMM:
case VIR_DOMAIN_FEATURE_KVM:
case VIR_DOMAIN_FEATURE_XEN:
--
2.45.2
9:08 a.m.
New subject: [PATCH 3/3] qemu: add RISC-V 'aia' command line
The 'aia' feature is added as a machine type option for the 'virt'
RISC-V machine, e.g. "-machine virt,aia=<val>".
Signed-off-by: Daniel Henrique Barboza <dbarboza(a)ventanamicro.com>
---
src/qemu/qemu_command.c | 5 +++
...cv64-virt-features-aia.riscv64-latest.args | 31 +++++++++++++++++++
...scv64-virt-features-aia.riscv64-latest.xml | 1 +
.../riscv64-virt-features-aia.xml | 27 ++++++++++++++++
tests/qemuxmlconftest.c | 2 ++
5 files changed, 66 insertions(+)
create mode 100644 tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.args
create mode 120000 tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.xml
create mode 100644 tests/qemuxmlconfdata/riscv64-virt-features-aia.xml
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index a5ff7695c3..2637138481 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -6712,6 +6712,11 @@ qemuAppendDomainFeaturesMachineParam(virBuffer *buf,
virBufferAsprintf(buf, ",i8042=%s", str);
}
+ if (def->features[VIR_DOMAIN_FEATURE_AIA] != VIR_DOMAIN_AIA_NONE) {
+ const char *str =
virDomainAIATypeToString(def->features[VIR_DOMAIN_FEATURE_AIA]);
+ virBufferAsprintf(buf, ",aia=%s", str);
+ }
+
return 0;
}
diff --git a/tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.args
b/tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.args
new file mode 100644
index 0000000000..75b0f1e425
--- /dev/null
+++ b/tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.args
@@ -0,0 +1,31 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/var/lib/libvirt/qemu/domain--1-guest \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-guest/.local/share \
+XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-guest/.cache \
+XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-guest/.config \
+/usr/bin/qemu-system-riscv64 \
+-name guest=guest,debug-threads=on \
+-S \
+-object
'{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-guest/master-key.aes"}'
\
+-machine
virt,usb=off,aia=aplic-imsic,dump-guest-core=off,memory-backend=riscv_virt_board.ram,acpi=off
\
+-accel tcg \
+-cpu rv64 \
+-m size=4194304k \
+-object
'{"qom-type":"memory-backend-ram","id":"riscv_virt_board.ram","size":4294967296}'
\
+-overcommit mem-lock=off \
+-smp 4,sockets=4,cores=1,threads=1 \
+-uuid 1ccfd97d-5eb4-478a-bbe6-88d254c16db7 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-boot strict=on \
+-audiodev
'{"id":"audio1","driver":"none"}' \
+-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
+-msg timestamp=on
diff --git a/tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.xml
b/tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.xml
new file mode 120000
index 0000000000..1ab55fc10e
--- /dev/null
+++ b/tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.xml
@@ -0,0 +1 @@
+riscv64-virt-features-aia.xml
\ No newline at end of file
diff --git a/tests/qemuxmlconfdata/riscv64-virt-features-aia.xml
b/tests/qemuxmlconfdata/riscv64-virt-features-aia.xml
new file mode 100644
index 0000000000..708a2886f9
--- /dev/null
+++ b/tests/qemuxmlconfdata/riscv64-virt-features-aia.xml
@@ -0,0 +1,27 @@
+<domain type='qemu'>
+ <name>guest</name>
+ <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+ <memory unit='KiB'>4194304</memory>
+ <currentMemory unit='KiB'>4194304</currentMemory>
+ <vcpu placement='static'>4</vcpu>
+ <os>
+ <type arch='riscv64' machine='virt'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <features>
+ <aia value='aplic-imsic'/>
+ </features>
+ <cpu mode='custom' match='exact' check='none'>
+ <model fallback='forbid'>rv64</model>
+ </cpu>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-riscv64</emulator>
+ <controller type='pci' index='0' model='pcie-root'/>
+ <audio id='1' type='none'/>
+ <memballoon model='none'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxmlconftest.c b/tests/qemuxmlconftest.c
index 9bcd937447..5fc011d41e 100644
--- a/tests/qemuxmlconftest.c
+++ b/tests/qemuxmlconftest.c
@@ -2921,6 +2921,8 @@ mymain(void)
DO_TEST_CAPS_ARCH_LATEST("x86_64-default-cpu-tcg-q35-4.2",
"x86_64");
DO_TEST_CAPS_ARCH_LATEST("x86_64-default-cpu-tcg-features",
"x86_64");
+ DO_TEST_CAPS_ARCH_LATEST("riscv64-virt-features-aia",
"riscv64");
+
DO_TEST_CAPS_LATEST("virtio-9p-multidevs");
DO_TEST_CAPS_LATEST("virtio-9p-createmode");
--
2.45.2
4:35 a.m.
ping
On 10/24/24 11:08 AM, Daniel Henrique Barboza wrote:
Hi,
This series adds official support for RISC-V AIA (Advanced Interrupt
Architecture). AIA and has been supported by the 'virt' RISC-V board, as
a machine property, since QEMU 7.0.
Daniel Henrique Barboza (3):
qemu: add capability for RISC-V AIA feature
conf,qemu: implement RISC-V 'aia' virt domain feature
qemu: add RISC-V 'aia' command line
docs/formatdomain.rst | 8 ++++
src/conf/domain_conf.c | 39 +++++++++++++++++++
src/conf/domain_conf.h | 11 ++++++
src/conf/schemas/domaincommon.rng | 15 +++++++
src/libvirt_private.syms | 2 +
src/qemu/qemu_capabilities.c | 2 +
src/qemu/qemu_capabilities.h | 1 +
src/qemu/qemu_command.c | 5 +++
src/qemu/qemu_validate.c | 15 +++++++
.../caps_8.0.0_riscv64.xml | 1 +
.../caps_9.1.0_riscv64.xml | 1 +
...cv64-virt-features-aia.riscv64-latest.args | 31 +++++++++++++++
...scv64-virt-features-aia.riscv64-latest.xml | 1 +
.../riscv64-virt-features-aia.xml | 27 +++++++++++++
tests/qemuxmlconftest.c | 2 +
15 files changed, 161 insertions(+)
create mode 100644 tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.args
create mode 120000 tests/qemuxmlconfdata/riscv64-virt-features-aia.riscv64-latest.xml
create mode 100644 tests/qemuxmlconfdata/riscv64-virt-features-aia.xml
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Daniel Henrique Barboza