[PATCH v3 2/2] docs/system/igvm: document MADT, COMMAND_LINE and DEVICE_TREE directives

[Luigi Leonardi <leonardi@redhat.com>]

The MADT and DEVICE_TREE directives were added without updating the
list of supported directives. Document them, together with the
COMMAND_LINE directive added in the previous patch.

Suggested-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Luigi Leonardi <leonardi@redhat.com>
---
 docs/system/igvm.rst | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/docs/system/igvm.rst b/docs/system/igvm.rst
index 9db8ae43d2..da1e965f54 100644
--- a/docs/system/igvm.rst
+++ b/docs/system/igvm.rst
@@ -72,6 +72,14 @@ SEV-ES, SEV-SNP and non-confidential platforms.
    * - IGVM_VHT_ENVIRONMENT_INFO_PARAMETER
      - The ``memory_is_shared`` parameter is set to 1 in the guest parameter
        page.
+   * - IGVM_VHT_MADT
+     - The parameter area is populated with the ACPI MADT generated by QEMU.
+   * - IGVM_VHT_COMMAND_LINE
+     - The parameter area is populated with the ``cmdline`` property of the
+       ``igvm-cfg`` object, or an empty string if it is not set.
+   * - IGVM_VHT_DEVICE_TREE
+     - The parameter area is populated with the device tree generated by QEMU.
+       Only available when QEMU is built with FDT support.
 
 .. list-table:: Additional SEV, SEV-ES & SEV_SNP Supported Directives
    :widths: 25 75

-- 
2.56.0