diff options
| author | Liav Albani | 2022-03-04 16:40:30 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin | 2022-03-06 22:06:16 +0100 |
| commit | 5334bf5703408b7948d9fd8bb8a599c97cdc84a3 (patch) | |
| tree | 658e28b52c5a3f07133dffce8a75468cb6952034 /include/hw/acpi | |
| parent | tests/acpi: i386: allow FACP acpi table changes (diff) | |
| download | qemu-5334bf5703408b7948d9fd8bb8a599c97cdc84a3.tar.gz qemu-5334bf5703408b7948d9fd8bb8a599c97cdc84a3.tar.xz qemu-5334bf5703408b7948d9fd8bb8a599c97cdc84a3.zip | |
hw/acpi: add indication for i8042 in IA-PC boot flags of the FADT table
This can allow the guest OS to determine more easily if i8042 controller
is present in the system or not, so it doesn't need to do probing of the
controller, but just initialize it immediately, before enumerating the
ACPI AML namespace.
The 8042 bit in IAPC_BOOT_ARCH was introduced from ACPI spec v2 (FADT
revision 2 and above). Therefore, in this change, we only enable this bit for
x86/q35 machine types since x86/i440fx machines use FADT ACPI table with
revision 1.
Signed-off-by: Liav Albani <liavalb@gmail.com>
Signed-off-by: Ani Sinha <ani@anisinha.ca>
Message-Id: <20220304154032.2071585-3-ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw/acpi')
| -rw-r--r-- | include/hw/acpi/acpi-defs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h index c97e8633ad..2b42e4192b 100644 --- a/include/hw/acpi/acpi-defs.h +++ b/include/hw/acpi/acpi-defs.h @@ -77,6 +77,7 @@ typedef struct AcpiFadtData { uint16_t plvl2_lat; /* P_LVL2_LAT */ uint16_t plvl3_lat; /* P_LVL3_LAT */ uint16_t arm_boot_arch; /* ARM_BOOT_ARCH */ + uint16_t iapc_boot_arch; /* IAPC_BOOT_ARCH */ uint8_t minor_ver; /* FADT Minor Version */ /* |