[Xen-devel] [XEN][RFC PATCH 09/15] xc: Add the hypercall for multiple servers

[Julien Grall <julien.grall@xxxxxxxxxx>]

This patch add 5 hypercalls to register server, io range and PCI.

Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
---
 tools/libxc/xc_domain.c |  140 +++++++++++++++++++++++++++++++++++++++++++++++
 tools/libxc/xenctrl.h   |   13 ++++
 2 files changed, 153 insertions(+), 0 deletions(-)

diff --git a/tools/libxc/xc_domain.c b/tools/libxc/xc_domain.c
index d98e68b..8067397 100644
--- a/tools/libxc/xc_domain.c
+++ b/tools/libxc/xc_domain.c
@@ -1514,6 +1514,146 @@ int xc_domain_set_virq_handler(xc_interface *xch, 
uint32_t domid, int virq)
     return do_domctl(xch, &domctl);
 }
 
+int xc_hvm_register_ioreq_server(xc_interface *xch, domid_t dom, servid_t *id)
+{
+    DECLARE_HYPERCALL;
+    DECLARE_HYPERCALL_BUFFER(xen_hvm_register_ioreq_server_t, arg);
+    int rc = -1;
+
+    arg = xc_hypercall_buffer_alloc(xch, arg, sizeof (*arg));
+    if (!arg) {
+        PERROR("Could not allocate memory for xc_hvm_register_ioreq_server 
hypercall");
+        goto out;
+    }
+
+    hypercall.op        = __HYPERVISOR_hvm_op;
+    hypercall.arg[0]    = HVMOP_register_ioreq_server;
+    hypercall.arg[1]    = HYPERCALL_BUFFER_AS_ARG(arg);
+
+    arg->domid = dom;
+    rc = do_xen_hypercall(xch, &hypercall);
+    *id = arg->id;
+
+    xc_hypercall_buffer_free(xch, arg);
+out:
+    return rc;
+}
+
+int xc_hvm_get_ioreq_server_buf_channel(xc_interface *xch, domid_t dom, 
servid_t id,
+                                        unsigned int *channel)
+{
+    DECLARE_HYPERCALL;
+    DECLARE_HYPERCALL_BUFFER(xen_hvm_get_ioreq_server_buf_channel_t, arg);
+    int rc = -1;
+
+    arg = xc_hypercall_buffer_alloc(xch, arg, sizeof (*arg));
+    if (!arg) {
+        PERROR("Could not allocate memory for 
xc_hvm_get_ioreq_servr_buf_channel");
+        goto out;
+    }
+
+    hypercall.op        = __HYPERVISOR_hvm_op;
+    hypercall.arg[0]    = HVMOP_get_ioreq_server_buf_channel;
+    hypercall.arg[1]    = HYPERCALL_BUFFER_AS_ARG(arg);
+
+    arg->domid = dom;
+    arg->id = id;
+    rc = do_xen_hypercall(xch, &hypercall);
+    *channel = arg->channel;
+
+    xc_hypercall_buffer_free(xch, arg);
+
+out:
+    return rc;
+}
+
+int xc_hvm_map_io_range_to_ioreq_server(xc_interface *xch, domid_t dom, 
servid_t id,
+                                        char is_mmio, uint64_t start, uint64_t 
end)
+{
+    DECLARE_HYPERCALL;
+    DECLARE_HYPERCALL_BUFFER(xen_hvm_map_io_range_to_ioreq_server_t, arg);
+    int rc = -1;
+
+    arg = xc_hypercall_buffer_alloc(xch, arg, sizeof (*arg));
+    if (!arg) {
+        PERROR("Could not allocate memory for 
xc_hvm_map_io_range_to_ioreq_server hypercall");
+        goto out;
+    }
+
+    hypercall.op        = __HYPERVISOR_hvm_op;
+    hypercall.arg[0]    = HVMOP_map_io_range_to_ioreq_server;
+    hypercall.arg[1]    = HYPERCALL_BUFFER_AS_ARG(arg);
+
+    arg->domid = dom;
+    arg->id = id;
+    arg->is_mmio = is_mmio;
+    arg->s = start;
+    arg->e = end;
+
+    rc = do_xen_hypercall(xch, &hypercall);
+
+    xc_hypercall_buffer_free(xch, arg);
+out:
+    return rc;
+}
+
+int xc_hvm_unmap_io_range_from_ioreq_server(xc_interface *xch, domid_t dom, 
servid_t id,
+                                            char is_mmio, uint64_t addr)
+{
+    DECLARE_HYPERCALL;
+    DECLARE_HYPERCALL_BUFFER(xen_hvm_unmap_io_range_from_ioreq_server_t, arg);
+    int rc = -1;
+
+    arg = xc_hypercall_buffer_alloc(xch, arg, sizeof (*arg));
+    if (!arg) {
+        PERROR("Could not allocate memory for 
xc_hvm_unmap_io_range_from_ioreq_server hypercall");
+        goto out;
+    }
+
+    hypercall.op        = __HYPERVISOR_hvm_op;
+    hypercall.arg[0]    = HVMOP_unmap_io_range_from_ioreq_server;
+    hypercall.arg[1]    = HYPERCALL_BUFFER_AS_ARG(arg);
+
+    arg->domid = dom;
+    arg->id = id;
+    arg->is_mmio = is_mmio;
+    arg->addr = addr;
+    rc = do_xen_hypercall(xch, &hypercall);
+
+    xc_hypercall_buffer_free(xch, arg);
+out:
+    return rc;
+}
+
+int xc_hvm_register_pcidev(xc_interface *xch, domid_t dom, servid_t id,
+                           uint16_t bdf)
+{
+    DECLARE_HYPERCALL;
+    DECLARE_HYPERCALL_BUFFER(xen_hvm_register_pcidev_t, arg);
+    int rc = -1;
+
+    arg = xc_hypercall_buffer_alloc(xch, arg, sizeof (*arg));
+    if (!arg)
+    {
+        PERROR("Could not allocate memory for xc_hvm_create_pci hypercall");
+        goto out;
+    }
+
+    hypercall.op        = __HYPERVISOR_hvm_op;
+    hypercall.arg[0]    = HVMOP_register_pcidev;
+    hypercall.arg[1]    = HYPERCALL_BUFFER_AS_ARG(arg);
+
+    arg->domid = dom;
+    arg->id = id;
+    arg->bdf = bdf;
+    rc = do_xen_hypercall(xch, &hypercall);
+
+    xc_hypercall_buffer_free(xch, arg);
+out:
+    return rc;
+}
+
+
 /*
  * Local variables:
  * mode: C
diff --git a/tools/libxc/xenctrl.h b/tools/libxc/xenctrl.h
index 812e723..bcbfee5 100644
--- a/tools/libxc/xenctrl.h
+++ b/tools/libxc/xenctrl.h
@@ -1648,6 +1648,19 @@ void xc_clear_last_error(xc_interface *xch);
 int xc_set_hvm_param(xc_interface *handle, domid_t dom, int param, unsigned 
long value);
 int xc_get_hvm_param(xc_interface *handle, domid_t dom, int param, unsigned 
long *value);
 
+int xc_hvm_register_ioreq_server(xc_interface *xch, domid_t dom, unsigned int 
*id);
+int xc_hvm_get_ioreq_server_buf_channel(xc_interface *xch, domid_t dom, 
servid_t id,
+                                        unsigned int *channel);
+int xc_hvm_map_io_range_to_ioreq_server(xc_interface *xch, domid_t dom, 
unsigned int id,
+                                        char is_mmio, uint64_t start, uint64_t 
end);
+int xc_hvm_unmap_io_range_from_ioreq_server(xc_interface *xch, domid_t dom, 
unsigned int id,
+                                            char is_mmio, uint64_t addr);
+/*
+ * Register a PCI device
+ */
+int xc_hvm_register_pcidev(xc_interface *xch, domid_t dom, unsigned int id,
+                           uint16_t bdf);
+
 /* IA64 specific, nvram save */
 int xc_ia64_save_to_nvram(xc_interface *xch, uint32_t dom);
 
-- 
Julien Grall


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