fast-reboot: fix TLB cleanup after fast reboot

POWER9/10 are missing TLB flushing after fast reboot. Add it back to
cpu_fast_reboot_complete(), which is where fast-reboot code thinks it
should be.

Suggested-by: Cédric Le Goater <clg@fr.ibm.com>
Fixes: 53ef0db6e2 ("asm/head.S: set POWER9 radix HID bit at entry")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/core/cpu.c b/core/cpu.c
index 95b7808..6756ab1 100644
--- a/core/cpu.c
+++ b/core/cpu.c
@@ -1570,6 +1570,10 @@ void cpu_fast_reboot_complete(void)
 	/* and set HID0:RADIX */
 	if (proc_gen == proc_gen_p9)
 		current_radix_mode = true;
+
+	/* P8 clears TLBs in cleanup_cpu_state() */
+	if (proc_gen >= proc_gen_p9)
+		 cleanup_global_tlb();
 }
 
 static int64_t opal_reinit_cpus(uint64_t flags)