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| author | Arthur Heymans <arthur@aheymans.xyz> | 2020-09-29 11:52:57 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-11-09 10:20:26 +0000 |
| commit | 27ba085334d1482c08b5fd9e628a0f11a0fd9202 (patch) | |
| tree | a0ad8ad2b4d120901c2cca1595d8f686d3c53e35 | |
| parent | 342802726739e95105a4a9e9425b34f03ac89db4 (diff) | |
mb/emulation/q35: Define pm_acpi_smi_cmd_port
The X86 Qemu targets use the AMD64 SMM save state, but unlike
most AMD CPU's the PM ACPI SMI port is not configurable and uses
the Intel default APM_CNT, 0xb2 port.
This will be used by the common save state handler.
Change-Id: Ifee9476f628a2df710fb4340ce6a19b008df1033
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45814
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/mainboard/emulation/qemu-q35/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/mainboard/emulation/qemu-q35/smi.c | 9 |
2 files changed, 11 insertions, 0 deletions
diff --git a/src/mainboard/emulation/qemu-q35/Makefile.inc b/src/mainboard/emulation/qemu-q35/Makefile.inc index e142d4d5c1..ddcf6da062 100644 --- a/src/mainboard/emulation/qemu-q35/Makefile.inc +++ b/src/mainboard/emulation/qemu-q35/Makefile.inc @@ -14,3 +14,5 @@ ramstage-y += ../qemu-i440fx/northbridge.c verstage-$(CONFIG_CHROMEOS) += chromeos.c verstage-$(CONFIG_CHROMEOS) += ../qemu-i440fx/fw_cfg.c ramstage-$(CONFIG_CHROMEOS) += chromeos.c + +smm-$(CONFIG_HAVE_SMI_HANDLER) += smi.c diff --git a/src/mainboard/emulation/qemu-q35/smi.c b/src/mainboard/emulation/qemu-q35/smi.c new file mode 100644 index 0000000000..5d8d48295c --- /dev/null +++ b/src/mainboard/emulation/qemu-q35/smi.c @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <cpu/x86/smm.h> + +/* The X86 qemu target uses AMD64 save states but the APM port is not configurable. */ +uint16_t pm_acpi_smi_cmd_port(void) +{ + return APM_CNT; +} |