From: David Daney <david.da...@cavium.com>
The MIPS VZ KVM code needs this to be able to manage the FPU.
Signed-off-by: David Daney <david.da...@cavium.com>
---
arch/mips/kernel/traps.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index fca0a2f..2bdeb32 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -56,6 +56,7 @@
#include <asm/types.h>
#include <asm/stacktrace.h>
#include <asm/uasm.h>
+#include <asm/kvm_mips_vz.h>
extern void check_wait(void);
extern asmlinkage void rollback_handle_int(void);
@@ -1045,6 +1046,13 @@ asmlinkage void do_cpu(struct pt_regs *regs)
int status;
unsigned long __maybe_unused flags;
+#ifdef CONFIG_KVM_MIPSVZ
+ if (test_tsk_thread_flag(current, TIF_GUESTMODE)) {
+ if (mipsvz_cp_unusable(regs))
+ return;
+ }
+#endif
+
die_if_kernel("do_cpu invoked from kernel context!", regs);
cpid = (regs->cp0_cause >> CAUSEB_CE) & 3;
--
1.7.11.7
--
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