diff options
| author | Nathan Chen <nathanc@nvidia.com> | 2026-03-24 14:02:29 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2026-03-24 14:02:29 +0000 |
| commit | 3a3dd64e63dc772f6067d8215b7add7474e6a3e5 (patch) | |
| tree | e54e0916cd25fd95aad0947e703ba5a0eec2c520 /qapi | |
| parent | 1a76cc39333c7870ee34075c2295a28e53d1b1ba (diff) | |
| download | qemu-3a3dd64e63dc772f6067d8215b7add7474e6a3e5.tar.gz qemu-3a3dd64e63dc772f6067d8215b7add7474e6a3e5.zip | |
qdev: Add a SsidSizeMode property type
Introduce a new enum type property allowing to set a Substream ID size
for HW-accelerated smmuv3. Values are auto and 0..20. The auto value
allows SSID size property to be derived from host IOMMU capabilities.
A value of 0 disables SubstreamID, while non-zero values specify the
SSID size in bits.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Shameer Kolothum <skolothumtho@nvidia.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Nathan Chen <nathanc@nvidia.com>
Message-id: 20260323182454.1416110-5-nathanc@nvidia.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'qapi')
| -rw-r--r-- | qapi/misc-arm.json | 16 | ||||
| -rw-r--r-- | qapi/pragma.json | 1 |
2 files changed, 17 insertions, 0 deletions
diff --git a/qapi/misc-arm.json b/qapi/misc-arm.json index f921d740f1..416b4240e2 100644 --- a/qapi/misc-arm.json +++ b/qapi/misc-arm.json @@ -45,3 +45,19 @@ # { "version": 3, "emulated": false, "kernel": true } ] } ## { 'command': 'query-gic-capabilities', 'returns': ['GICCapability'] } + +## +# @SsidSizeMode: +# +# SMMUv3 SubstreamID size configuration mode. +# +# @auto: derive from host IOMMU capabilities +# +# Values 0-20: SSIDSIZE value in bits. 0 disables SubstreamID. +# +# Since: 11.0 +## +{ 'enum': 'SsidSizeMode', + 'data': [ 'auto', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + '10', '11', '12', '13', '14', '15', '16', '17', '18', + '19', '20' ] } # order matters, see ssidsize_mode_to_value() diff --git a/qapi/pragma.json b/qapi/pragma.json index 193bc39059..24aebbe8f5 100644 --- a/qapi/pragma.json +++ b/qapi/pragma.json @@ -68,6 +68,7 @@ 'S390CpuEntitlement', 'S390CpuPolarization', 'S390CpuState', + 'SsidSizeMode', 'String', 'StringWrapper', 'SysEmuTarget', |