Searched hist:"2 d1fb9bc" (Results 1 – 3 of 3) sorted by relevance
/openbmc/qemu/hw/ppc/ |
H A D | spapr_caps.c | 2d1fb9bc Mon Dec 11 00:34:30 CST 2017 David Gibson <david@gibson.dropbear.id.au> spapr: Handle Decimal Floating Point (DFP) as an optional capability Decimal Floating Point has been available on POWER7 and later (server) cpus. However, it can be disabled on the hypervisor, meaning that it's not available to guests. We currently handle this by conditionally advertising DFP support in the device tree depending on whether the guest CPU model supports it - which can also depend on what's allowed in the host for -cpu host. That can lead to confusion on migration, since host properties are silently affecting guest visible properties. This patch handles it by treating it as an optional capability for the pseries machine type. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org>
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H A D | spapr.c | 2d1fb9bc Mon Dec 11 00:34:30 CST 2017 David Gibson <david@gibson.dropbear.id.au> spapr: Handle Decimal Floating Point (DFP) as an optional capability Decimal Floating Point has been available on POWER7 and later (server) cpus. However, it can be disabled on the hypervisor, meaning that it's not available to guests. We currently handle this by conditionally advertising DFP support in the device tree depending on whether the guest CPU model supports it - which can also depend on what's allowed in the host for -cpu host. That can lead to confusion on migration, since host properties are silently affecting guest visible properties. This patch handles it by treating it as an optional capability for the pseries machine type. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org>
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/openbmc/qemu/include/hw/ppc/ |
H A D | spapr.h | 2d1fb9bc Mon Dec 11 00:34:30 CST 2017 David Gibson <david@gibson.dropbear.id.au> spapr: Handle Decimal Floating Point (DFP) as an optional capability Decimal Floating Point has been available on POWER7 and later (server) cpus. However, it can be disabled on the hypervisor, meaning that it's not available to guests. We currently handle this by conditionally advertising DFP support in the device tree depending on whether the guest CPU model supports it - which can also depend on what's allowed in the host for -cpu host. That can lead to confusion on migration, since host properties are silently affecting guest visible properties. This patch handles it by treating it as an optional capability for the pseries machine type. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org>
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