X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=guest%2Flinux%2Fhvm-ros%2Fv3_hvm_ros_user.c;h=c703ec172128b84f4c3e5e0c2b56462fc9502474;hb=4e43946f01f687361197dc9571b7df02ae20de30;hp=f292626d73f632d71bc5c9772ed63f2bc1397b16;hpb=495d40c7d02054399e118be6a10b0096c938d232;p=palacios.git

diff --git a/guest/linux/hvm-ros/v3_hvm_ros_user.c b/guest/linux/hvm-ros/v3_hvm_ros_user.c
index f292626..c703ec1 100644
--- a/guest/linux/hvm-ros/v3_hvm_ros_user.c
+++ b/guest/linux/hvm-ros/v3_hvm_ros_user.c
@@ -9,6 +9,7 @@
 #include <stdio.h>
 #include <string.h>
 
+#include <sys/mman.h>
 
 #include "v3_hvm_ros_user.h"
 
@@ -240,6 +241,61 @@ static void wait_for_completion()
 }
 
 
+int v3_hvm_ros_install_hrt_image(void *image, uint64_t size)
+{
+    unsigned long long rc, num, a1=0, a2=0, a3=0, a4=0, a5=0, a6=0, a7=0, a8=0;
+    unsigned long long i;
+    volatile long long sum=0;
+
+    num = 0xf00d;
+    a1 = 0x8; // install image
+    a2 = (unsigned long long) image;
+    a3 = size;
+
+    // touch the whoel image to make it has ptes
+    for (i=0;i<size;i++) { 
+	sum+=((char*)image)[i];
+    }
+
+    HCALL(rc,num,a1,a2,a3,a4,a5,a6,a7,a8);
+
+    if (rc) { 
+	return -1;
+    } else {
+	return 0;
+    }
+}
+
+int v3_hvm_ros_reset(reset_type what)
+{
+    unsigned long long num, a1=0, a2=0, a3=0, a4=0, a5=0, a6=0, a7=0, a8=0;
+    unsigned long long rc;
+    
+    num=0xf00d;
+    switch (what) { 
+	case RESET_ROS:
+	    a1 = 0x1;
+	    break;
+	case RESET_HRT:
+	    a1 = 0x2;
+	    break;
+	case RESET_BOTH:
+	    a1 = 0x3;
+	    break;
+    }
+    
+    HCALL(rc,num,a1,a2,a3,a4,a5,a6,a7,a8);
+    
+    if (rc) {
+	INFO("Error in request to reset rc=0x%llx\n",rc);
+	return -1;
+    } else {
+	// no waiting for completion here
+	return 0;
+    }
+}
+
+
 int v3_hvm_ros_merge_address_spaces()
 {
     unsigned long long num, a1=0, a2=0, a3=0, a4=0, a5=0, a6=0, a7=0, a8=0;
@@ -425,3 +481,87 @@ int v3_hvm_ros_invoke_hrt_sync(void *buf, int ros)
     return 0;
 }
 
+extern void *__v3_hvm_ros_signal_handler_stub;
+
+void (*__v3_hvm_ros_signal_handler)(uint64_t) = 0;
+static void *__v3_hvm_ros_signal_handler_stack = 0;
+static uint64_t __v3_hvm_ros_signal_handler_stack_size=0;
+
+int v3_hvm_ros_register_signal(void (*h)(uint64_t), void *stack, uint64_t stack_size )
+{
+    unsigned long long rc, num, a1=0, a2=0, a3=0, a4=0, a5=0, a6=0, a7=0, a8=0;
+
+    if (mlock(stack,stack_size)) { 
+	INFO("Can't pin stack - proceeding\n");
+    }
+
+    // clear it and touch it
+    memset(stack,0,stack_size);
+
+    __v3_hvm_ros_signal_handler_stack = stack;
+    __v3_hvm_ros_signal_handler_stack_size = stack_size;
+    __v3_hvm_ros_signal_handler = h;
+
+    // Attempt to install
+    
+    num = 0xf00d;
+    a1 = 0x40;
+    a2 = (unsigned long long) &__v3_hvm_ros_signal_handler_stub;
+    a3 = (unsigned long long) stack + stack_size - 8; // put us at the top of the stack
+
+    HCALL(rc,num,a1,a2,a3,a4,a5,a6,a7,a8);
+    if (rc) {
+	INFO("Failed to install HVM signal handler\n");
+	return -1;
+    } 
+
+    return 0;
+}
+
+int v3_hvm_ros_unregister_signal()
+{
+    unsigned long long rc, num, a1=0, a2=0, a3=0, a4=0, a5=0, a6=0, a7=0, a8=0;
+
+    // an unregister boils down to setting handler to null
+    num = 0xf00d;
+    a1 = 0x40;
+    a2 = (unsigned long long) 0;
+    a3 = (unsigned long long) 0; 
+
+    HCALL(rc,num,a1,a2,a3,a4,a5,a6,a7,a8);
+
+    if (rc) {
+	INFO("Failed to uninstall HVM signal handler\n");
+    } 
+
+    // and now do user space cleanup
+
+    __v3_hvm_ros_signal_handler = 0;
+
+    if (__v3_hvm_ros_signal_handler_stack) { 
+	munlock(__v3_hvm_ros_signal_handler_stack,__v3_hvm_ros_signal_handler_stack_size);
+	__v3_hvm_ros_signal_handler_stack = 0;
+	__v3_hvm_ros_signal_handler_stack_size = 0;
+    }
+    
+    if (rc) { 
+	return -1;
+    } else {
+	return 0;
+    }
+}
+
+
+int  v3_hvm_hrt_signal_ros(uint64_t code)
+{
+    unsigned long long rc, num, a1=0, a2=0, a3=0, a4=0, a5=0, a6=0, a7=0, a8=0;
+
+    num = 0xf00d;
+    a1 = 0x41;
+    a2 = (unsigned long long) code;
+
+    HCALL(rc,num,a1,a2,a3,a4,a5,a6,a7,a8);
+
+    return rc ? -1 : rc;
+
+}