[SeaBIOS] [PATCH 1/4] paravirt: disable legacy bios tables in case of more than 255 CPUs

[Igor Mammedov]

MPTable doesn't support more than 255 CPUs and
QEMU supplies an alternative MADT table which
guest will use instead of it. So do not install
legacy tables if more than 254 CPUs are provided

Signed-off-by: Igor Mammedov 
---
 src/fw/paravirt.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/fw/paravirt.c b/src/fw/paravirt.c
index 8ed4380..9b07aaa 100644
--- a/src/fw/paravirt.c
+++ b/src/fw/paravirt.c
@@ -154,8 +154,10 @@ qemu_platform_setup(void)
     smp_setup();

// Create bios tables
-    pirtable_setup();
-    mptable_setup();
+    if (MaxCountCPUs <= 255) {
+        pirtable_setup();
+        mptable_setup();
+    }
     smbios_setup();

if (CONFIG_FW_ROMFILE_LOAD) {