kvm-userspace: ppc: userspace fixes for powerpc

@@ -51,7 +51,7 @@ struct io_table mmio_table;
 struct io_table mmio_table;
 
 static int ncpus = 1;
-static sem_t init_sem;
+static sem_t exited_sem;
 static __thread int vcpu;
 static sigset_t kernel_sigmask;
 static sigset_t ipi_sigmask;

@@ -220,16 +220,8 @@ void sync_caches(void *mem, unsigned lon
 	asm volatile ("sync; isync");
 }
 
-static void init_vcpu(int n, unsigned long entry)
+static void init_vcpu(int n)
 {
-	/* XXX must set initial TLB state and stack
-	struct kvm_regs regs = {
-		.pc = entry,
-	};
-
-	kvm_set_regs(kvm, 0, &regs);
-	*/
-
 	sigemptyset(&ipi_sigmask);
 	sigaddset(&ipi_sigmask, IPI_SIGNAL);
 	sigprocmask(SIG_UNBLOCK, &ipi_sigmask, NULL);

@@ -237,7 +229,6 @@ static void init_vcpu(int n, unsigned lo
 	vcpus[n].tid = gettid();
 	vcpu = n;
 	kvm_set_signal_mask(kvm, n, &kernel_sigmask);
-	sem_post(&init_sem);
 }
 
 static void *do_create_vcpu(void *_n)

@@ -245,8 +236,9 @@ static void *do_create_vcpu(void *_n)
 	int n = (long)_n;
 
 	kvm_create_vcpu(kvm, n);
-	init_vcpu(n, 0x0);
+	init_vcpu(n);
 	kvm_run(kvm, n);
+	sem_post(&exited_sem);
 	return NULL;
 }
 

@@ -368,14 +360,14 @@ int main(int argc, char **argv)
 	len = load_file(vm_mem, argv[optind], 1);
 	sync_caches(vm_mem, len);
 
-	sem_init(&init_sem, 0, 0);
-	init_vcpu(0, 0x0);
-	for (i = 1; i < ncpus; ++i)
-		start_vcpu(i);
-	for (i = 0; i < ncpus; ++i)
-		sem_wait(&init_sem);
-
 	io_table_register(&mmio_table, 0xf0000000, 64, mmio_handler, NULL);
 
-	return kvm_run(kvm, 0);
+	sem_init(&exited_sem, 0, 0);
+	for (i = 0; i < ncpus; ++i)
+		start_vcpu(i);
+	/* Wait for all vcpus to exit. */
+	for (i = 0; i < ncpus; ++i)
+		sem_wait(&exited_sem);
+
+	return 0;
 }

@@ -183,7 +183,7 @@ static struct kvm_callbacks test_callbac
 
 static unsigned long load_file(void *mem, const char *fname, int inval_icache)
 {
-	int r;
+	ssize_t r;
 	int fd;
 	unsigned long bytes = 0;
 

@@ -200,6 +200,7 @@ static unsigned long load_file(void *mem
 
 	if (r = -1) {
 		perror("read");
+		printf("read %d bytes\n", bytes);
 		exit(1);
 	}
 

51 lines not on this page · raw message

new file mode 100644
@@ -0,0 +1,35 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * Authors: Hollis Blanchard <hollisb-r/[email protected]>
+ */
+
+#include "libcflat.h"
+
+#define BASE 0xf0000000
+#define _putc ((volatile char *)(BASE))
+#define _exit ((volatile char *)(BASE+1))
+
+void puts(const char *s)
+{
+	while (*s != '\0')
+		*_putc = *s++;
+}
+
+void exit(int code)
+{
+	*_exit = code;
+}

new file mode 100644
@@ -0,0 +1,23 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * Authors: Hollis Blanchard <hollisb-r/[email protected]>
+ */
+
+int main(void)
+{
+	return 1;
+}

@@ -83,6 +83,11 @@ static int test_io_window(void *opaque)
 }
 
 static int test_try_push_interrupts(void *opaque)
+{
+	return 0;
+}
+
+static int test_try_push_nmi(void *opaque)
 {
 	return 0;
 }

@@ -175,6 +180,7 @@ static struct kvm_callbacks test_callbac
 	.halt        = test_halt,
 	.io_window = test_io_window,
 	.try_push_interrupts = test_try_push_interrupts,
+	.try_push_nmi = test_try_push_nmi,
 	.post_kvm_run = test_post_kvm_run,
 	.pre_kvm_run = test_pre_kvm_run,
 	.powerpc_dcr_read = test_dcr_read,

new file mode 100644
@@ -0,0 +1,25 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * Authors: Hollis Blanchard <[email protected]>
+ */
+
+#ifndef __TIMEBASE_H__
+#define __TIMEBASE_H__
+
+unsigned long long mftb(void);
+
+#endif /* __TIMEBASE_H__ */