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Index: kqemu-freebsd.c
@@ -38,6 +38,11 @@
#else
#include <machine/npx.h>
#endif
+#ifdef __x86_64__
+#include <sys/pcpu.h>
+#include <machine/segments.h>
+#include <machine/tss.h>
+#endif
#include "kqemu-kernel.h"
@@ -248,6 +253,19 @@
va_end(ap);
}
+#ifdef __x86_64__
+/* called with interrupts disabled */
+void CDECL kqemu_tss_fixup(void)
+{
+ int gsel_tss = GSEL(GPROC0_SEL, SEL_KPL);
+
+ gdt_segs[GPROC0_SEL].ssd_base = (long) &common_tss[PCPU_GET(cpuid)];
+ ssdtosyssd(&gdt_segs[GPROC0_SEL],
+ (struct system_segment_descriptor *)&gdt[GPROC0_SEL]);
+ ltr(gsel_tss);
+}
+#endif
+
struct kqemu_instance {
#if __FreeBSD_version >= 500000
TAILQ_ENTRY(kqemu_instance) kqemu_ent;
Index: common/kernel.c
@@ -1025,6 +1025,9 @@
#ifdef __x86_64__
uint16_t saved_ds, saved_es;
unsigned long fs_base, gs_base;
+#ifdef __FreeBSD__
+ struct kqemu_global_state *g = s->global_state;
+#endif
#endif
#ifdef PROFILE
@@ -1188,6 +1191,13 @@
apic_restore_nmi(s, apic_nmi_mask);
}
profile_record(s);
+#ifdef __FreeBSD__
+#ifdef __x86_64__
+ spin_lock(&g->lock);
+ kqemu_tss_fixup();
+ spin_unlock(&g->lock);
+#endif
+#endif
if (s->mon_req == MON_REQ_IRQ) {
struct kqemu_exception_regs *r;
Index: kqemu-kernel.h
@@ -44,4 +44,10 @@
void CDECL kqemu_log(const char *fmt, ...);
+#ifdef __FreeBSD__
+#ifdef __x86_64__
+void CDECL kqemu_tss_fixup(void);
+#endif
+#endif
+
#endif /* KQEMU_KERNEL_H */
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