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authorRichard Henderson <richard.henderson@linaro.org>2020-07-20 10:25:36 +0100
committerPeter Maydell <peter.maydell@linaro.org>2020-07-20 11:35:17 +0100
commit19bd6aafbd184be963d2b7c24874e3252a7088b7 (patch)
treea7ec37b1f396d49b34f72dea9019c53c8d260ab5
parent7f6185ed9ca977a9836f35b994e4f85cecae8437 (diff)
hw/arm/virt: Disable memory hotplug when MTE is enabled
When MTE is enabled, tag memory must exist for all RAM. It might be possible to simultaneously hot plug tag memory alongside the corresponding normal memory, but for now just disable hotplug. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200713213341.590275-4-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--hw/arm/virt.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index a7f3d442db..ecfee362a1 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -2194,6 +2194,11 @@ static void virt_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
return;
}
+ if (vms->mte) {
+ error_setg(errp, "memory hotplug is not enabled: MTE is enabled");
+ return;
+ }
+
if (is_nvdimm && !ms->nvdimms_state->is_enabled) {
error_setg(errp, "nvdimm is not enabled: add 'nvdimm=on' to '-M'");
return;