|
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 09/20] tools: Rework xc_domain_create() to take a full xen_domctl_createdomain
In future patches, the structure will be extended with further information,
and this is far cleaner than adding extra parameters.
The python stubs are the only user which passes NULL for the existing config
option (which is actually the arch substructure). Therefore, the #ifdefary
moves to compensate.
For libxl, pass the full config object down into
libxl__arch_domain_{prepare,save}_config(), as there are in practice arch
specific settings in the common part of the structure (flags s3_integrity and
oos_off specifically).
No practical change in behaviour.
Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
CC: Wei Liu <wei.liu2@xxxxxxxxxx>
CC: Juergen Gross <jgross@xxxxxxxx>
CC: Christian Lindig <christian.lindig@xxxxxxxxxx>
CC: David Scott <dave@xxxxxxxxxx>
CC: Jon Ludlam <jonathan.ludlam@xxxxxxxxxxxxx>
CC: Rob Hoes <Rob.Hoes@xxxxxxxxxx>
CC: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
---
tools/helpers/init-xenstore-domain.c | 16 +++++++---------
tools/libxc/include/xenctrl.h | 6 ++----
tools/libxc/xc_domain.c | 31 ++++---------------------------
tools/libxl/libxl_arch.h | 4 ++--
tools/libxl/libxl_arm.c | 16 ++++++++--------
tools/libxl/libxl_create.c | 23 ++++++++++++-----------
tools/libxl/libxl_x86.c | 10 +++++-----
tools/ocaml/libs/xc/xenctrl_stubs.c | 3 +--
tools/python/xen/lowlevel/xc/xc.c | 28 ++++++++++++++++++++--------
9 files changed, 61 insertions(+), 76 deletions(-)
diff --git a/tools/helpers/init-xenstore-domain.c
b/tools/helpers/init-xenstore-domain.c
index 8453be2..785e570 100644
--- a/tools/helpers/init-xenstore-domain.c
+++ b/tools/helpers/init-xenstore-domain.c
@@ -60,11 +60,13 @@ static void usage(void)
static int build(xc_interface *xch)
{
char cmdline[512];
- uint32_t ssid;
- xen_domain_handle_t handle = { 0 };
int rv, xs_fd;
struct xc_dom_image *dom = NULL;
int limit_kb = (maxmem ? : (memory + 1)) * 1024;
+ struct xen_domctl_createdomain config = {
+ .ssidref = SECINITSID_DOMU,
+ .flags = XEN_DOMCTL_CDF_xs_domain,
+ };
xs_fd = open("/dev/xen/xenbus_backend", O_RDWR);
if ( xs_fd == -1 )
@@ -75,19 +77,15 @@ static int build(xc_interface *xch)
if ( flask )
{
- rv = xc_flask_context_to_sid(xch, flask, strlen(flask), &ssid);
+ rv = xc_flask_context_to_sid(xch, flask, strlen(flask),
&config.ssidref);
if ( rv )
{
fprintf(stderr, "xc_flask_context_to_sid failed\n");
goto err;
}
}
- else
- {
- ssid = SECINITSID_DOMU;
- }
- rv = xc_domain_create(xch, ssid, handle, XEN_DOMCTL_CDF_xs_domain,
- &domid, NULL);
+
+ rv = xc_domain_create(xch, &domid, &config);
if ( rv )
{
fprintf(stderr, "xc_domain_create failed\n");
diff --git a/tools/libxc/include/xenctrl.h b/tools/libxc/include/xenctrl.h
index 543abfc..6ecc850 100644
--- a/tools/libxc/include/xenctrl.h
+++ b/tools/libxc/include/xenctrl.h
@@ -494,10 +494,8 @@ typedef struct xc_vcpu_extstate {
void *buffer;
} xc_vcpu_extstate_t;
-typedef struct xen_arch_domainconfig xc_domain_configuration_t;
-int xc_domain_create(xc_interface *xch, uint32_t ssidref,
- xen_domain_handle_t handle, uint32_t flags,
- uint32_t *pdomid, xc_domain_configuration_t *config);
+int xc_domain_create(xc_interface *xch, uint32_t *pdomid,
+ struct xen_domctl_createdomain *config);
/* Functions to produce a dump of a given domain
diff --git a/tools/libxc/xc_domain.c b/tools/libxc/xc_domain.c
index f122ea6..0124cea 100644
--- a/tools/libxc/xc_domain.c
+++ b/tools/libxc/xc_domain.c
@@ -26,43 +26,20 @@
#include <xen/memory.h>
#include <xen/hvm/hvm_op.h>
-int xc_domain_create(xc_interface *xch, uint32_t ssidref,
- xen_domain_handle_t handle, uint32_t flags,
- uint32_t *pdomid, xc_domain_configuration_t *config)
+int xc_domain_create(xc_interface *xch, uint32_t *pdomid,
+ struct xen_domctl_createdomain *config)
{
- xc_domain_configuration_t lconfig;
int err;
DECLARE_DOMCTL;
- if ( config == NULL )
- {
- memset(&lconfig, 0, sizeof(lconfig));
-
-#if defined (__i386) || defined(__x86_64__)
- if ( flags & XEN_DOMCTL_CDF_hvm_guest )
- lconfig.emulation_flags = XEN_X86_EMU_ALL;
-#elif defined (__arm__) || defined(__aarch64__)
- lconfig.gic_version = XEN_DOMCTL_CONFIG_GIC_NATIVE;
- lconfig.nr_spis = 0;
-#else
-#error Architecture not supported
-#endif
-
- config = &lconfig;
- }
-
domctl.cmd = XEN_DOMCTL_createdomain;
domctl.domain = *pdomid;
- domctl.u.createdomain.ssidref = ssidref;
- domctl.u.createdomain.flags = flags;
- memcpy(domctl.u.createdomain.handle, handle, sizeof(xen_domain_handle_t));
- /* xc_domain_configure_t is an alias of arch_domainconfig_t */
- memcpy(&domctl.u.createdomain.arch, config, sizeof(*config));
+ domctl.u.createdomain = *config;
+
if ( (err = do_domctl(xch, &domctl)) != 0 )
return err;
*pdomid = (uint16_t)domctl.domain;
- memcpy(config, &domctl.u.createdomain.arch, sizeof(*config));
return 0;
}
diff --git a/tools/libxl/libxl_arch.h b/tools/libxl/libxl_arch.h
index 784ec7f..5c3c9fb 100644
--- a/tools/libxl/libxl_arch.h
+++ b/tools/libxl/libxl_arch.h
@@ -19,13 +19,13 @@
_hidden
int libxl__arch_domain_prepare_config(libxl__gc *gc,
libxl_domain_config *d_config,
- xc_domain_configuration_t *xc_config);
+ struct xen_domctl_createdomain *config);
/* save the arch specific configuration for the domain */
_hidden
int libxl__arch_domain_save_config(libxl__gc *gc,
libxl_domain_config *d_config,
- const xc_domain_configuration_t *xc_config);
+ const struct xen_domctl_createdomain
*config);
/* arch specific internal domain creation function */
_hidden
diff --git a/tools/libxl/libxl_arm.c b/tools/libxl/libxl_arm.c
index 906fd0d..827a9d9 100644
--- a/tools/libxl/libxl_arm.c
+++ b/tools/libxl/libxl_arm.c
@@ -39,7 +39,7 @@ static const char *gicv_to_string(uint8_t gic_version)
int libxl__arch_domain_prepare_config(libxl__gc *gc,
libxl_domain_config *d_config,
- xc_domain_configuration_t *xc_config)
+ struct xen_domctl_createdomain *config)
{
uint32_t nr_spis = 0;
unsigned int i;
@@ -86,18 +86,18 @@ int libxl__arch_domain_prepare_config(libxl__gc *gc,
LOG(DEBUG, "Configure the domain");
- xc_config->nr_spis = nr_spis;
+ config->arch.nr_spis = nr_spis;
LOG(DEBUG, " - Allocate %u SPIs", nr_spis);
switch (d_config->b_info.arch_arm.gic_version) {
case LIBXL_GIC_VERSION_DEFAULT:
- xc_config->gic_version = XEN_DOMCTL_CONFIG_GIC_NATIVE;
+ config->arch.gic_version = XEN_DOMCTL_CONFIG_GIC_NATIVE;
break;
case LIBXL_GIC_VERSION_V2:
- xc_config->gic_version = XEN_DOMCTL_CONFIG_GIC_V2;
+ config->arch.gic_version = XEN_DOMCTL_CONFIG_GIC_V2;
break;
case LIBXL_GIC_VERSION_V3:
- xc_config->gic_version = XEN_DOMCTL_CONFIG_GIC_V3;
+ config->arch.gic_version = XEN_DOMCTL_CONFIG_GIC_V3;
break;
default:
LOG(ERROR, "Unknown GIC version %d",
@@ -110,9 +110,9 @@ int libxl__arch_domain_prepare_config(libxl__gc *gc,
int libxl__arch_domain_save_config(libxl__gc *gc,
libxl_domain_config *d_config,
- const xc_domain_configuration_t *xc_config)
+ const struct xen_domctl_createdomain
*config)
{
- switch (xc_config->gic_version) {
+ switch (config->arch.gic_version) {
case XEN_DOMCTL_CONFIG_GIC_V2:
d_config->b_info.arch_arm.gic_version = LIBXL_GIC_VERSION_V2;
break;
@@ -120,7 +120,7 @@ int libxl__arch_domain_save_config(libxl__gc *gc,
d_config->b_info.arch_arm.gic_version = LIBXL_GIC_VERSION_V3;
break;
default:
- LOG(ERROR, "Unexpected gic version %u", xc_config->gic_version);
+ LOG(ERROR, "Unexpected gic version %u", config->arch.gic_version);
return ERROR_FAIL;
}
diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
index 60a5542..668bd3e 100644
--- a/tools/libxl/libxl_create.c
+++ b/tools/libxl/libxl_create.c
@@ -562,35 +562,36 @@ int libxl__domain_make(libxl__gc *gc, libxl_domain_config
*d_config,
/* Valid domid here means we're soft resetting. */
if (!libxl_domid_valid_guest(*domid)) {
- int flags = 0;
- xen_domain_handle_t handle;
- xc_domain_configuration_t xc_config = {};
+ struct xen_domctl_createdomain create = {
+ .ssidref = info->ssidref,
+ };
if (info->type != LIBXL_DOMAIN_TYPE_PV) {
- flags |= XEN_DOMCTL_CDF_hvm_guest;
- flags |= libxl_defbool_val(info->hap) ? XEN_DOMCTL_CDF_hap : 0;
- flags |= libxl_defbool_val(info->oos) ? 0 : XEN_DOMCTL_CDF_oos_off;
+ create.flags |= XEN_DOMCTL_CDF_hvm_guest;
+ create.flags |=
+ libxl_defbool_val(info->hap) ? XEN_DOMCTL_CDF_hap : 0;
+ create.flags |=
+ libxl_defbool_val(info->oos) ? 0 : XEN_DOMCTL_CDF_oos_off;
}
/* Ultimately, handle is an array of 16 uint8_t, same as uuid */
- libxl_uuid_copy(ctx, (libxl_uuid *)handle, &info->uuid);
+ libxl_uuid_copy(ctx, (libxl_uuid *)&create.handle, &info->uuid);
- ret = libxl__arch_domain_prepare_config(gc, d_config, &xc_config);
+ ret = libxl__arch_domain_prepare_config(gc, d_config, &create);
if (ret < 0) {
LOGED(ERROR, *domid, "fail to get domain config");
rc = ERROR_FAIL;
goto out;
}
- ret = xc_domain_create(ctx->xch, info->ssidref, handle, flags, domid,
- &xc_config);
+ ret = xc_domain_create(ctx->xch, domid, &create);
if (ret < 0) {
LOGED(ERROR, *domid, "domain creation fail");
rc = ERROR_FAIL;
goto out;
}
- rc = libxl__arch_domain_save_config(gc, d_config, &xc_config);
+ rc = libxl__arch_domain_save_config(gc, d_config, &create);
if (rc < 0)
goto out;
}
diff --git a/tools/libxl/libxl_x86.c b/tools/libxl/libxl_x86.c
index 4ea1249..3f0c33a 100644
--- a/tools/libxl/libxl_x86.c
+++ b/tools/libxl/libxl_x86.c
@@ -5,17 +5,17 @@
int libxl__arch_domain_prepare_config(libxl__gc *gc,
libxl_domain_config *d_config,
- xc_domain_configuration_t *xc_config)
+ struct xen_domctl_createdomain *config)
{
switch(d_config->c_info.type) {
case LIBXL_DOMAIN_TYPE_HVM:
- xc_config->emulation_flags = XEN_X86_EMU_ALL;
+ config->arch.emulation_flags = XEN_X86_EMU_ALL;
break;
case LIBXL_DOMAIN_TYPE_PVH:
- xc_config->emulation_flags = XEN_X86_EMU_LAPIC;
+ config->arch.emulation_flags = XEN_X86_EMU_LAPIC;
break;
case LIBXL_DOMAIN_TYPE_PV:
- xc_config->emulation_flags = 0;
+ config->arch.emulation_flags = 0;
break;
default:
abort();
@@ -26,7 +26,7 @@ int libxl__arch_domain_prepare_config(libxl__gc *gc,
int libxl__arch_domain_save_config(libxl__gc *gc,
libxl_domain_config *d_config,
- const xc_domain_configuration_t *xc_config)
+ const struct xen_domctl_createdomain
*config)
{
return 0;
}
diff --git a/tools/ocaml/libs/xc/xenctrl_stubs.c
b/tools/ocaml/libs/xc/xenctrl_stubs.c
index fd8341e..360e054 100644
--- a/tools/ocaml/libs/xc/xenctrl_stubs.c
+++ b/tools/ocaml/libs/xc/xenctrl_stubs.c
@@ -167,8 +167,7 @@ CAMLprim value stub_xc_domain_create(value xch, value
config)
#undef VAL_SSIDREF
caml_enter_blocking_section();
- result = xc_domain_create(_H(xch), cfg.ssidref, cfg.handle, cfg.flags,
- &domid, &cfg.arch);
+ result = xc_domain_create(_H(xch), &domid, &cfg);
caml_leave_blocking_section();
if (result < 0)
diff --git a/tools/python/xen/lowlevel/xc/xc.c
b/tools/python/xen/lowlevel/xc/xc.c
index f501764..d0bd173 100644
--- a/tools/python/xen/lowlevel/xc/xc.c
+++ b/tools/python/xen/lowlevel/xc/xc.c
@@ -117,17 +117,21 @@ static PyObject *pyxc_domain_create(XcObject *self,
PyObject *args,
PyObject *kwds)
{
- uint32_t dom = 0, ssidref = 0, flags = 0, target = 0;
+ uint32_t dom = 0, target = 0;
int ret, i;
PyObject *pyhandle = NULL;
- xen_domain_handle_t handle = {
- 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef,
- 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef };
+ struct xen_domctl_createdomain config = {
+ .handle = {
+ 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef,
+ 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef,
+ },
+ };
static char *kwd_list[] = { "domid", "ssidref", "handle", "flags",
"target", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "|iiOii", kwd_list,
- &dom, &ssidref, &pyhandle, &flags,
&target))
+ &dom, &config.ssidref, &pyhandle,
+ &config.flags, &target))
return NULL;
if ( pyhandle != NULL )
{
@@ -140,12 +144,20 @@ static PyObject *pyxc_domain_create(XcObject *self,
PyObject *p = PyList_GetItem(pyhandle, i);
if ( !PyLongOrInt_Check(p) )
goto out_exception;
- handle[i] = (uint8_t)PyLongOrInt_AsLong(p);
+ config.handle[i] = (uint8_t)PyLongOrInt_AsLong(p);
}
}
- if ( (ret = xc_domain_create(self->xc_handle, ssidref,
- handle, flags, &dom, NULL)) < 0 )
+#if defined (__i386) || defined(__x86_64__)
+ if ( config.flags & XEN_DOMCTL_CDF_hvm_guest )
+ config.arch.emulation_flags = XEN_X86_EMU_ALL;
+#elif defined (__arm__) || defined(__aarch64__)
+ config.arch.gic_version = XEN_DOMCTL_CONFIG_GIC_NATIVE;
+#else
+#error Architecture not supported
+#endif
+
+ if ( (ret = xc_domain_create(self->xc_handle, &dom, &config)) < 0 )
return pyxc_error_to_exception(self->xc_handle);
if ( target )
--
2.1.4
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel
|
 |
Lists.xenproject.org is hosted with RackSpace, monitoring our |