| Message ID | 1486644810-33181-3-git-send-email-agraf@suse.de |
|---|---|
| State | New |
| Headers | show |
On 2017/2/9 20:53, Alexander Graf wrote: > Virtio-mmio devices can directly access guest memory and do so in cache > coherent fashion. Tell the guest about that fact when it's using ACPI. > > Signed-off-by: Alexander Graf <agraf@suse.de> > --- > hw/arm/virt-acpi-build.c | 1 + > 1 file changed, 1 insertion(+) > Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org> > diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c > index 07a10ac..8955a9d 100644 > --- a/hw/arm/virt-acpi-build.c > +++ b/hw/arm/virt-acpi-build.c > @@ -135,6 +135,7 @@ static void acpi_dsdt_add_virtio(Aml *scope, > Aml *dev = aml_device("VR%02u", i); > aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0005"))); > aml_append(dev, aml_name_decl("_UID", aml_int(i))); > + aml_append(dev, aml_name_decl("_CCA", aml_int(1))); > > Aml *crs = aml_resource_template(); > aml_append(crs, aml_memory32_fixed(base, size, AML_READ_WRITE)); >
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 07a10ac..8955a9d 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -135,6 +135,7 @@ static void acpi_dsdt_add_virtio(Aml *scope, Aml *dev = aml_device("VR%02u", i); aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0005"))); aml_append(dev, aml_name_decl("_UID", aml_int(i))); + aml_append(dev, aml_name_decl("_CCA", aml_int(1))); Aml *crs = aml_resource_template(); aml_append(crs, aml_memory32_fixed(base, size, AML_READ_WRITE));
Virtio-mmio devices can directly access guest memory and do so in cache coherent fashion. Tell the guest about that fact when it's using ACPI. Signed-off-by: Alexander Graf <agraf@suse.de> --- hw/arm/virt-acpi-build.c | 1 + 1 file changed, 1 insertion(+)