[PATCH v17 01/10] hw/arm/virt: Add RAS platform version for migration

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Support this feature since version 4.1, disable it by
default in the old version.

Signed-off-by: Dongjiu Geng <gengdongjiu@xxxxxxxxxx>
---
 hw/arm/virt.c         | 6 ++++++
 include/hw/arm/virt.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 5331ab7..7bdd41b 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -2043,8 +2043,14 @@ DEFINE_VIRT_MACHINE_AS_LATEST(4, 1)
 
 static void virt_machine_4_0_options(MachineClass *mc)
 {
+    VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc));
+
     virt_machine_4_1_options(mc);
     compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len);
+    /* Disable memory recovery feature for 4.0 as RAS support was
+     * introduced with 4.1.
+     */
+    vmc->no_ras = true;
 }
 DEFINE_VIRT_MACHINE(4, 0)
 
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index 4240709..7f1a033 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -104,6 +104,7 @@ typedef struct {
     bool disallow_affinity_adjustment;
     bool no_its;
     bool no_pmu;
+    bool no_ras;
     bool claim_edge_triggered_timers;
     bool smbios_old_sys_ver;
     bool no_highmem_ecam;
-- 
1.8.3.1




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