[Skiboot] [PATCH 1/2] Add opal_boot_complete to debug descriptor

[Joel Stanley]

This tells us when we've entered the host. First use case is knowing if
we can can rely on host communication working, such as receiving and
acting on an opal_msg.

Signed-off-by: Joel Stanley <joel at jms.id.au>
---
 core/init.c       | 3 +++
 include/skiboot.h | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/core/init.c b/core/init.c
index 7baca0d..d5c1779 100644
--- a/core/init.c
+++ b/core/init.c
@@ -60,6 +60,7 @@ struct debug_descriptor debug_descriptor = {
 	.memcons_phys	= (uint64_t)&memcons,
 	.trace_mask	= 0, /* All traces disabled by default */
 	.console_log_levels = (PR_DEBUG << 4) | PR_NOTICE,
+	.opal_boot_complete = false,
 };
 
 static bool try_load_elf64_le(struct elf_hdr *header)
@@ -454,6 +455,8 @@ void __noreturn load_and_boot_kernel(bool is_reboot)
 	printf("INIT: Starting kernel at 0x%llx, fdt at %p (size 0x%x)\n",
 	       kernel_entry, fdt, fdt_totalsize(fdt));
 
+	debug_descriptor.opal_boot_complete = true;
+
 	fdt_set_boot_cpuid_phys(fdt, this_cpu()->pir);
 	if (kernel_32bit)
 		start_kernel32(kernel_entry, fdt, mem_top);
diff --git a/include/skiboot.h b/include/skiboot.h
index 4b58597..c12fa67 100644
--- a/include/skiboot.h
+++ b/include/skiboot.h
@@ -65,7 +65,7 @@ struct debug_descriptor {
 	u32	version;
 	u8	console_log_levels;	/* high 4 bits in memory,
 					 * low 4 bits driver (e.g. uart). */
-	u8	reserved1;
+	bool	opal_boot_complete : 1;	/* True as we jump to host OS */
 	u16	reserved2;
 	u32	reserved[2];
 
-- 
2.5.0