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authorAlistair Francis <alistair.francis@wdc.com>2022-04-28 09:41:46 +1000
committerAlistair Francis <alistair.francis@wdc.com>2022-04-29 10:48:48 +1000
commit325b7c4e7582c229d28c47123c3b986ed948eb84 (patch)
tree612d98da97eb527f6999ab16bf1a3600dda5d503 /hw/riscv
parent58d5a5a78cdbd77062708edaa6416e0817d39fe4 (diff)
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hw/riscv: Enable TPM backends
Imply the TPM sysbus devices. This allows users to add TPM devices to the RISC-V virt board. This was tested by first creating an emulated TPM device: swtpm socket --tpm2 -t -d --tpmstate dir=/tmp/tpm \ --ctrl type=unixio,path=swtpm-sock Then launching QEMU with: -chardev socket,id=chrtpm,path=swtpm-sock \ -tpmdev emulator,id=tpm0,chardev=chrtpm \ -device tpm-tis-device,tpmdev=tpm0 The TPM device can be seen in the memory tree and the generated device tree. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/942 Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-Id: <20220427234146.1130752-7-alistair.francis@opensource.wdc.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'hw/riscv')
-rw-r--r--hw/riscv/Kconfig1
-rw-r--r--hw/riscv/virt.c4
2 files changed, 5 insertions, 0 deletions
diff --git a/hw/riscv/Kconfig b/hw/riscv/Kconfig
index da790f5..79ff61c 100644
--- a/hw/riscv/Kconfig
+++ b/hw/riscv/Kconfig
@@ -34,6 +34,7 @@ config RISCV_VIRT
imply PCI_DEVICES
imply VIRTIO_VGA
imply TEST_DEVICES
+ imply TPM_TIS_SYSBUS
select RISCV_NUMA
select GOLDFISH_RTC
select MSI_NONBROKEN
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 035c6fb..3326f4d 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -43,6 +43,7 @@
#include "sysemu/device_tree.h"
#include "sysemu/sysemu.h"
#include "sysemu/kvm.h"
+#include "sysemu/tpm.h"
#include "hw/pci/pci.h"
#include "hw/pci-host/gpex.h"
#include "hw/display/ramfb.h"
@@ -1617,6 +1618,9 @@ static void virt_machine_class_init(ObjectClass *oc, void *data)
hc->plug = virt_machine_device_plug_cb;
machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE);
+#ifdef CONFIG_TPM
+ machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS);
+#endif
object_class_property_add_bool(oc, "aclint", virt_get_aclint,
virt_set_aclint);