[Skiboot] [PATCH 1/2] Add opal_boot_complete to debug descriptor
Joel Stanley
joel at jms.id.au
Tue Sep 15 13:10:06 AEST 2015
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
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