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[Qemu-devel] [XEN][RFC PATCH V2 09/17] xc: Add the hypercall for multipl
From: |
Julien Grall |
Subject: |
[Qemu-devel] [XEN][RFC PATCH V2 09/17] xc: Add the hypercall for multiple servers |
Date: |
Wed, 22 Aug 2012 13:31:55 +0100 |
This patch add 5 hypercalls to register server, io range and PCI.
Signed-off-by: Julien Grall <address@hidden>
---
tools/libxc/xc_domain.c | 155 +++++++++++++++++++++++++++++++++++++++++++++++
tools/libxc/xenctrl.h | 21 ++++++
2 files changed, 176 insertions(+), 0 deletions(-)
diff --git a/tools/libxc/xc_domain.c b/tools/libxc/xc_domain.c
index d98e68b..cb186c1 100644
--- a/tools/libxc/xc_domain.c
+++ b/tools/libxc/xc_domain.c
@@ -1514,6 +1514,161 @@ int xc_domain_set_virq_handler(xc_interface *xch,
uint32_t domid, int virq)
return do_domctl(xch, &domctl);
}
+ioservid_or_error_t xc_hvm_register_ioreq_server(xc_interface *xch,
+ domid_t dom)
+{
+ DECLARE_HYPERCALL;
+ DECLARE_HYPERCALL_BUFFER(xen_hvm_register_ioreq_server_t, arg);
+ ioservid_or_error_t 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);
+ if ( !rc )
+ rc = arg->id;
+
+ xc_hypercall_buffer_free(xch, arg);
+out:
+ return rc;
+}
+
+evtchn_port_or_error_t xc_hvm_get_ioreq_server_buf_channel(xc_interface *xch,
+ domid_t dom,
+ ioservid_t id)
+{
+ DECLARE_HYPERCALL;
+ DECLARE_HYPERCALL_BUFFER(xen_hvm_get_ioreq_server_buf_channel_t, arg);
+ evtchn_port_or_error_t 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);
+
+ if ( !rc )
+ rc = 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,
+ ioservid_t id, int 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,
+ ioservid_t id, int 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, ioservid_t id,
+ uint8_t domain, uint8_t bus, uint8_t device,
+ uint8_t function)
+{
+ 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->domain = domain;
+ arg->bus = bus;
+ arg->device = device;
+ arg->function = function;
+ 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 b7741ca..65a950e 100644
--- a/tools/libxc/xenctrl.h
+++ b/tools/libxc/xenctrl.h
@@ -1659,6 +1659,27 @@ 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);
+/* A IO server identifier is guaranteed to fit in 31 bits. */
+typedef int ioservid_or_error_t;
+
+ioservid_or_error_t xc_hvm_register_ioreq_server(xc_interface *xch,
+ domid_t dom);
+evtchn_port_or_error_t xc_hvm_get_ioreq_server_buf_channel(xc_interface *xch,
+ domid_t dom,
+ ioservid_t id);
+int xc_hvm_map_io_range_to_ioreq_server(xc_interface *xch, domid_t dom,
+ ioservid_t id, int is_mmio,
+ uint64_t start, uint64_t end);
+int xc_hvm_unmap_io_range_from_ioreq_server(xc_interface *xch, domid_t dom,
+ ioservid_t id, int is_mmio,
+ uint64_t addr);
+/*
+ * Register a PCI device
+ */
+int xc_hvm_register_pcidev(xc_interface *xch, domid_t dom, unsigned int id,
+ uint8_t domain, uint8_t bus, uint8_t device,
+ uint8_t function);
+
/* IA64 specific, nvram save */
int xc_ia64_save_to_nvram(xc_interface *xch, uint32_t dom);
--
Julien Grall
[Qemu-devel] [XEN][RFC PATCH V2 02/17] hvm: Add functions to handle ioreq servers, Julien Grall, 2012/08/22
[Qemu-devel] [XEN][RFC PATCH V2 05/17] hvm: Modify hvm_op, Julien Grall, 2012/08/22