[SeaBIOS] [PATCH 3/6] paravirt: read QEMU_CFG_NOGRAPHIC, store in etc/sercon-enable romfile

[Gerd Hoffmann]

Will be used as runtime switch to enable serial console support.

Signed-off-by: Gerd Hoffmann 
---
 src/fw/paravirt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/fw/paravirt.c b/src/fw/paravirt.c
index 5b23d786be..e9cca4fe6e 100644
--- a/src/fw/paravirt.c
+++ b/src/fw/paravirt.c
@@ -210,6 +210,7 @@ qemu_platform_setup(void)
 #define QEMU_CFG_SIGNATURE              0x00
 #define QEMU_CFG_ID                     0x01
 #define QEMU_CFG_UUID                   0x02
+#define QEMU_CFG_NOGRAPHIC              0x04
 #define QEMU_CFG_NUMA                   0x0d
 #define QEMU_CFG_BOOT_MENU              0x0e
 #define QEMU_CFG_NB_CPUS                0x05
@@ -510,6 +511,7 @@ qemu_cfg_legacy(void)
     qemu_romfile_add("etc/show-boot-menu", QEMU_CFG_BOOT_MENU, 0, 2);
     qemu_romfile_add("etc/irq0-override", QEMU_CFG_IRQ0_OVERRIDE, 0, 1);
     qemu_romfile_add("etc/max-cpus", QEMU_CFG_MAX_CPUS, 0, 2);
+    qemu_romfile_add("etc/sercon-enable", QEMU_CFG_NOGRAPHIC, 0, 2);

// NUMA data
     u64 numacount;