Author: cognet
Date: Fri May 18 13:28:02 2018
New Revision: 333791
URL: https://svnweb.freebsd.org/changeset/base/333791
Log:
Instead of ignoring the VFP registers, set the dumppcb's pcb_fpusaved
field, so that they are saved, as they may be used in the kernel, in the
EFI and the crypto code.
Reviewed by: andrew
Modified:
head/sys/arm64/arm64/vfp.c
Modified: head/sys/arm64/arm64/vfp.c
==============================================================================
--- head/sys/arm64/arm64/vfp.c Fri May 18 13:03:04 2018 (r333790)
+++ head/sys/arm64/arm64/vfp.c Fri May 18 13:28:02 2018 (r333791)
@@ -172,12 +172,11 @@ vfp_save_state(struct thread *td, struct pcb *pcb)
/*
* savectx() will be called on panic with dumppcb as an argument,
- * dumppcb doesn't have pcb_fpusaved set so don't make any attempt
- * to store the VFP registers in it, we probably don't care much
- * at that point, anyway.
+ * dumppcb doesn't have pcb_fpusaved set, so set it to save
+ * the VFP registers.
*/
if (pcb->pcb_fpusaved == NULL)
- return;
+ pcb->pcb_fpusaved = &pcb->pcb_fpustate;
if (td == NULL)
td = curthread;
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