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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 7/8] x86/domctl: Drop XEN_DOMCTL_set_cpuid
With the final users moved over to using XEN_DOMCTL_set_cpumsr_policy, drop
this domctl and associated infrastructure.
Rename the preexisting set_cpuid XSM vector to set_cpu_policy, now that it is
back to having a single user.
Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Wei Liu <wl@xxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
CC: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
---
tools/flask/policy/modules/dom0.te | 2 +-
tools/flask/policy/modules/xen.if | 2 +-
xen/arch/x86/domctl.c | 101 ------------------------------------
xen/include/public/domctl.h | 11 +---
xen/xsm/flask/hooks.c | 3 +-
xen/xsm/flask/policy/access_vectors | 3 +-
6 files changed, 5 insertions(+), 117 deletions(-)
diff --git a/tools/flask/policy/modules/dom0.te
b/tools/flask/policy/modules/dom0.te
index 9970f9dc08..272f6a4f75 100644
--- a/tools/flask/policy/modules/dom0.te
+++ b/tools/flask/policy/modules/dom0.te
@@ -38,7 +38,7 @@ allow dom0_t dom0_t:domain {
getpodtarget setpodtarget set_misc_info set_virq_handler
};
allow dom0_t dom0_t:domain2 {
- set_cpuid gettsc settsc setscheduler set_vnumainfo
+ set_cpu_policy gettsc settsc setscheduler set_vnumainfo
get_vnumainfo psr_cmt_op psr_alloc get_cpu_policy
};
allow dom0_t dom0_t:resource { add remove };
diff --git a/tools/flask/policy/modules/xen.if
b/tools/flask/policy/modules/xen.if
index de5fb331bf..8eb2293a52 100644
--- a/tools/flask/policy/modules/xen.if
+++ b/tools/flask/policy/modules/xen.if
@@ -50,7 +50,7 @@ define(`create_domain_common', `
getdomaininfo hypercall setvcpucontext getscheduler
getvcpuinfo getaddrsize getaffinity setaffinity
settime setdomainhandle getvcpucontext set_misc_info };
- allow $1 $2:domain2 { set_cpuid settsc setscheduler setclaim
+ allow $1 $2:domain2 { set_cpu_policy settsc setscheduler setclaim
set_vnumainfo get_vnumainfo cacheflush
psr_cmt_op psr_alloc soft_reset
resource_map get_cpu_policy };
diff --git a/xen/arch/x86/domctl.c b/xen/arch/x86/domctl.c
index 99bc2fb10d..ec50a88156 100644
--- a/xen/arch/x86/domctl.c
+++ b/xen/arch/x86/domctl.c
@@ -206,94 +206,6 @@ static void domain_cpu_policy_changed(struct domain *d)
}
}
-static int update_domain_cpuid_info(struct domain *d,
- const struct xen_domctl_cpuid *ctl)
-{
- struct cpuid_policy *p = d->arch.cpuid;
- const struct cpuid_leaf leaf = { ctl->eax, ctl->ebx, ctl->ecx, ctl->edx };
-
- /*
- * Skip update for leaves we don't care about, to avoid the overhead of
- * recalculate_cpuid_policy().
- */
- switch ( ctl->input[0] )
- {
- case 0x00000000 ... ARRAY_SIZE(p->basic.raw) - 1:
- if ( ctl->input[0] == 4 &&
- ctl->input[1] >= ARRAY_SIZE(p->cache.raw) )
- return 0;
-
- if ( ctl->input[0] == 7 &&
- ctl->input[1] >= ARRAY_SIZE(p->feat.raw) )
- return 0;
-
- if ( ctl->input[0] == 0xb &&
- ctl->input[1] >= ARRAY_SIZE(p->topo.raw) )
- return 0;
-
- BUILD_BUG_ON(ARRAY_SIZE(p->xstate.raw) < 2);
- if ( ctl->input[0] == XSTATE_CPUID &&
- ctl->input[1] != 1 ) /* Everything else automatically calculated.
*/
- return 0;
- break;
-
- case 0x40000000: case 0x40000100:
- /* Only care about the max_leaf limit. */
-
- case 0x80000000 ... 0x80000000 + ARRAY_SIZE(p->extd.raw) - 1:
- break;
-
- default:
- return 0;
- }
-
- /* Insert ctl data into cpuid_policy. */
- switch ( ctl->input[0] )
- {
- case 0x00000000 ... ARRAY_SIZE(p->basic.raw) - 1:
- switch ( ctl->input[0] )
- {
- case 4:
- p->cache.raw[ctl->input[1]] = leaf;
- break;
-
- case 7:
- p->feat.raw[ctl->input[1]] = leaf;
- break;
-
- case 0xb:
- p->topo.raw[ctl->input[1]] = leaf;
- break;
-
- case XSTATE_CPUID:
- p->xstate.raw[ctl->input[1]] = leaf;
- break;
-
- default:
- p->basic.raw[ctl->input[0]] = leaf;
- break;
- }
- break;
-
- case 0x40000000:
- p->hv_limit = ctl->eax;
- break;
-
- case 0x40000100:
- p->hv2_limit = ctl->eax;
- break;
-
- case 0x80000000 ... 0x80000000 + ARRAY_SIZE(p->extd.raw) - 1:
- p->extd.raw[ctl->input[0] - 0x80000000] = leaf;
- break;
- }
-
- recalculate_cpuid_policy(d);
- domain_cpu_policy_changed(d);
-
- return 0;
-}
-
static int update_domain_cpu_policy(struct domain *d,
xen_domctl_cpu_policy_t *xdpc)
{
@@ -951,19 +863,6 @@ long arch_do_domctl(
break;
}
- case XEN_DOMCTL_set_cpuid:
- if ( d == currd ) /* no domain_pause() */
- ret = -EINVAL;
- else if ( d->creation_finished )
- ret = -EEXIST; /* No changing once the domain is running. */
- else
- {
- domain_pause(d);
- ret = update_domain_cpuid_info(d, &domctl->u.cpuid);
- domain_unpause(d);
- }
- break;
-
case XEN_DOMCTL_gettscinfo:
if ( d == currd ) /* no domain_pause() */
ret = -EINVAL;
diff --git a/xen/include/public/domctl.h b/xen/include/public/domctl.h
index 0471d3c680..548b917bdb 100644
--- a/xen/include/public/domctl.h
+++ b/xen/include/public/domctl.h
@@ -648,14 +648,6 @@ struct xen_domctl_set_target {
#if defined(__i386__) || defined(__x86_64__)
# define XEN_CPUID_INPUT_UNUSED 0xFFFFFFFF
-/* XEN_DOMCTL_set_cpuid */
-struct xen_domctl_cpuid {
- uint32_t input[2];
- uint32_t eax;
- uint32_t ebx;
- uint32_t ecx;
- uint32_t edx;
-};
/*
* XEN_DOMCTL_{get,set}_cpu_policy (x86 specific)
@@ -1166,7 +1158,7 @@ struct xen_domctl {
#define XEN_DOMCTL_set_target 46
#define XEN_DOMCTL_deassign_device 47
#define XEN_DOMCTL_unbind_pt_irq 48
-#define XEN_DOMCTL_set_cpuid 49
+/* #define XEN_DOMCTL_set_cpuid 49 - Obsolete - use
set_cpu_policy */
#define XEN_DOMCTL_get_device_group 50
/* #define XEN_DOMCTL_set_machine_address_size 51 - Obsolete */
/* #define XEN_DOMCTL_get_machine_address_size 52 - Obsolete */
@@ -1243,7 +1235,6 @@ struct xen_domctl {
struct xen_domctl_vm_event_op vm_event_op;
struct xen_domctl_mem_sharing_op mem_sharing_op;
#if defined(__i386__) || defined(__x86_64__)
- struct xen_domctl_cpuid cpuid;
struct xen_domctl_cpu_policy cpu_policy;
struct xen_domctl_vcpuextstate vcpuextstate;
struct xen_domctl_vcpu_msrs vcpu_msrs;
diff --git a/xen/xsm/flask/hooks.c b/xen/xsm/flask/hooks.c
index b23772786a..fd8d23c185 100644
--- a/xen/xsm/flask/hooks.c
+++ b/xen/xsm/flask/hooks.c
@@ -716,8 +716,7 @@ static int flask_domctl(struct domain *d, int cmd)
return current_has_perm(d, SECCLASS_DOMAIN, DOMAIN__SET_VIRQ_HANDLER);
case XEN_DOMCTL_set_cpu_policy:
- case XEN_DOMCTL_set_cpuid:
- return current_has_perm(d, SECCLASS_DOMAIN2, DOMAIN2__SET_CPUID);
+ return current_has_perm(d, SECCLASS_DOMAIN2, DOMAIN2__SET_CPU_POLICY);
case XEN_DOMCTL_gettscinfo:
return current_has_perm(d, SECCLASS_DOMAIN2, DOMAIN2__GETTSC);
diff --git a/xen/xsm/flask/policy/access_vectors
b/xen/xsm/flask/policy/access_vectors
index 6f3f9493f8..c055c14c26 100644
--- a/xen/xsm/flask/policy/access_vectors
+++ b/xen/xsm/flask/policy/access_vectors
@@ -208,8 +208,7 @@ class domain2
# target = the new target domain
set_as_target
# XEN_DOMCTL_set_cpu_policy
-# XEN_DOMCTL_set_cpuid
- set_cpuid
+ set_cpu_policy
# XEN_DOMCTL_gettscinfo
gettsc
# XEN_DOMCTL_settscinfo
--
2.11.0
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