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ArmVirtPkg: Install Acpi tables for Cloud Hypervisor

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There is no device like Fw-cfg in Qemu in Cloud Hypervisor, so a specific
Acpi handler is introduced here.

The handler implemented here is in a very simple way:
1. acquire the RSDP from the PCD variable in the top ".dsc";
2. get the XSDT address from RSDP structure;
3. get the ACPI tables following the XSDT structure and install them
one by one;
4. get DSDT address from FADT and install DSDT table.

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>

Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
This commit is contained in:
Jianyong Wu
2021-07-05 18:06:40 +08:00
committed by mergify[bot]
parent 31fcee6d99
commit c28fc8ab3b
3 changed files with 212 additions and 0 deletions
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6
ArmVirtPkg/ArmVirtPkg.dec
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@@ -66,6 +66,12 @@
#
gArmVirtTokenSpaceGuid.PcdTerminalTypeGuidBuffer|{0x65, 0x60, 0xA6, 0xDF, 0x19, 0xB4, 0xD3, 0x11, 0x9A, 0x2D, 0x00, 0x90, 0x27, 0x3F, 0xC1, 0x4D}|VOID*|0x00000007
##
# This is the physical address of Rsdp which is the core struct of Acpi.
# Cloud Hypervisor has no other way to pass Rsdp address to the guest except use a PCD.
#
gArmVirtTokenSpaceGuid.PcdCloudHvAcpiRsdpBaseAddress|0x0|UINT64|0x00000005
[PcdsDynamic]
#
# Whether to force disable ACPI, regardless of the fw_cfg settings