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Index: common/kernel.c
@@ -1240,6 +1240,11 @@
case MON_REQ_EXCEPTION:
exec_exception(s->arg0);
break;
+#ifdef __FreeBSD__
+ case MON_REQ_LOADFPUCONTEXT:
+ kqemu_loadfpucontext(s->arg0);
+ break;
+#endif
default:
kqemu_log("invalid mon request: %d\n", s->mon_req);
break;
Index: common/kqemu_int.h
@@ -523,6 +523,7 @@
MON_REQ_LOCK_USER_PAGE,
MON_REQ_UNLOCK_USER_PAGE,
MON_REQ_EXCEPTION,
+ MON_REQ_LOADFPUCONTEXT,
} MonitorRequest;
#define INTERRUPT_ENTRY_SIZE 16
Index: common/monitor.c
@@ -1995,8 +1995,13 @@
raise_exception_err(s, EXCP07_PREX, 0);
} else {
/* the host needs to restore the FPU state for us */
+#ifndef __FreeBSD__
s->mon_req = MON_REQ_EXCEPTION;
s->arg0 = 0x07;
+#else
+ s->mon_req = MON_REQ_LOADFPUCONTEXT;
+ s->arg0 = (unsigned long)s->cpu_state.cpl;
+#endif
monitor2kernel1(s);
}
}
Index: kqemu-freebsd.c
@@ -33,6 +33,11 @@
#include <machine/vmparam.h>
#include <machine/stdarg.h>
+#ifdef __x86_64__
+#include <machine/fpu.h>
+#else
+#include <machine/npx.h>
+#endif
#include "kqemu-kernel.h"
@@ -172,6 +177,15 @@
{
}
+void CDECL kqemu_loadfpucontext(unsigned long cpl)
+{
+#ifdef __x86_64__
+ fpudna();
+#else
+ npxdna();
+#endif
+}
+
#if __FreeBSD_version < 500000
static int
curpriority_cmp(struct proc *p)
Index: kqemu-kernel.h
@@ -40,6 +40,10 @@
void * CDECL kqemu_io_map(unsigned long page_index, unsigned int size);
void CDECL kqemu_io_unmap(void *ptr, unsigned int size);
+#ifdef __FreeBSD__
+void CDECL kqemu_loadfpucontext(unsigned long cpl);
+#endif
+
int CDECL kqemu_schedule(void);
void CDECL kqemu_log(const char *fmt, ...);
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