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initalize ci_kfpu_spl, to avoid triggering KASSERT() in fpu_kern_enter() 

Follows revision 1.177 of sys/arch/x86/x86/cpu.c:
"""
Add a small API for in-kernel FPU operations.

        fpu_kern_enter();
        /* do FPU stuff */
        fpu_kern_leave();
"""

With this DomU kernel boots with:
[   2.0000571] aes: Intel AES-NI
This commit is contained in:
jdolecek 2020-07-08 11:11:00 +00:00
parent 93627d9332
commit 90294f99e6
1 changed files with 4 additions and 2 deletions
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6
sys/arch/xen/x86/cpu.c
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@ -1,4 +1,4 @@
/* $NetBSD: cpu.c,v 1.137 2020/06/27 09:54:08 jdolecek Exp $ */
/* $NetBSD: cpu.c,v 1.138 2020/07/08 11:11:00 jdolecek Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
@ -65,7 +65,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.137 2020/06/27 09:54:08 jdolecek Exp $");
__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.138 2020/07/08 11:11:00 jdolecek Exp $");
#include "opt_ddb.h"
#include "opt_multiprocessor.h"
@ -232,6 +232,7 @@ cpu_attach(device_t parent, device_t self, void *aux)
ci->ci_cpuid = caa->cpu_number;
ci->ci_vcpu = NULL;
ci->ci_index = nphycpu++;
ci->ci_kfpu_spl = -1;
if (!pmf_device_register(self, NULL, NULL))
aprint_error_dev(self, "couldn't establish power handler\n");
@ -391,6 +392,7 @@ cpu_attach_common(device_t parent, device_t self, void *aux)
ci->ci_dev = self;
ci->ci_cpuid = cpunum;
ci->ci_vcpuid = cpunum;
ci->ci_kfpu_spl = -1;
KASSERT(HYPERVISOR_shared_info != NULL);
KASSERT(cpunum < XEN_LEGACY_MAX_VCPUS);