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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen staging] tools: switch existing users of xc_get_{system,domain}_cpu_policy
commit 29736eaeae545b37e4fd97a4077de681920d57a0
Author: Roger Pau Monne <roger.pau@xxxxxxxxxx>
AuthorDate: Mon Mar 22 11:59:04 2021 +0100
Commit: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Thu Apr 29 19:27:21 2021 +0100
tools: switch existing users of xc_get_{system,domain}_cpu_policy
With the introduction of xc_cpu_policy_get_{system,domain} and
xc_cpu_policy_serialise the current users of
xc_get_{system,domain}_cpu_policy can be switched to the new
interface.
Note that xc_get_{system,domain}_cpu_policy is removed from the public
interface and the functions are made static, since there are still
internal consumers in xg_cpuid_x86.c
Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
tools/include/xenctrl.h | 6 ------
tools/libs/guest/xg_cpuid_x86.c | 39 ++++++++++++++++++-------------------
tools/libs/guest/xg_sr_common_x86.c | 15 +++++++++++---
tools/misc/xen-cpuid.c | 21 +++++++++++++-------
4 files changed, 45 insertions(+), 36 deletions(-)
diff --git a/tools/include/xenctrl.h b/tools/include/xenctrl.h
index a4827b1ae6..e9a86d63ba 100644
--- a/tools/include/xenctrl.h
+++ b/tools/include/xenctrl.h
@@ -2613,12 +2613,6 @@ int xc_get_cpu_featureset(xc_interface *xch, uint32_t
index,
int xc_cpu_policy_get_size(xc_interface *xch, uint32_t *nr_leaves,
uint32_t *nr_msrs);
-int xc_get_system_cpu_policy(xc_interface *xch, uint32_t index,
- uint32_t *nr_leaves, xen_cpuid_leaf_t *leaves,
- uint32_t *nr_msrs, xen_msr_entry_t *msrs);
-int xc_get_domain_cpu_policy(xc_interface *xch, uint32_t domid,
- uint32_t *nr_leaves, xen_cpuid_leaf_t *leaves,
- uint32_t *nr_msrs, xen_msr_entry_t *msrs);
int xc_set_domain_cpu_policy(xc_interface *xch, uint32_t domid,
uint32_t nr_leaves, xen_cpuid_leaf_t *leaves,
uint32_t nr_msrs, xen_msr_entry_t *msrs,
diff --git a/tools/libs/guest/xg_cpuid_x86.c b/tools/libs/guest/xg_cpuid_x86.c
index 03884587b9..bbdabb3a63 100644
--- a/tools/libs/guest/xg_cpuid_x86.c
+++ b/tools/libs/guest/xg_cpuid_x86.c
@@ -135,9 +135,9 @@ int xc_cpu_policy_get_size(xc_interface *xch, uint32_t
*nr_leaves,
return ret;
}
-int xc_get_system_cpu_policy(xc_interface *xch, uint32_t index,
- uint32_t *nr_leaves, xen_cpuid_leaf_t *leaves,
- uint32_t *nr_msrs, xen_msr_entry_t *msrs)
+static int get_system_cpu_policy(xc_interface *xch, uint32_t index,
+ uint32_t *nr_leaves, xen_cpuid_leaf_t *leaves,
+ uint32_t *nr_msrs, xen_msr_entry_t *msrs)
{
struct xen_sysctl sysctl = {};
DECLARE_HYPERCALL_BOUNCE(leaves,
@@ -173,9 +173,9 @@ int xc_get_system_cpu_policy(xc_interface *xch, uint32_t
index,
return ret;
}
-int xc_get_domain_cpu_policy(xc_interface *xch, uint32_t domid,
- uint32_t *nr_leaves, xen_cpuid_leaf_t *leaves,
- uint32_t *nr_msrs, xen_msr_entry_t *msrs)
+static int get_domain_cpu_policy(xc_interface *xch, uint32_t domid,
+ uint32_t *nr_leaves, xen_cpuid_leaf_t *leaves,
+ uint32_t *nr_msrs, xen_msr_entry_t *msrs)
{
DECLARE_DOMCTL;
DECLARE_HYPERCALL_BOUNCE(leaves,
@@ -329,7 +329,7 @@ static int xc_cpuid_xend_policy(
/* Get the domain's current policy. */
nr_msrs = 0;
nr_cur = nr_leaves;
- rc = xc_get_domain_cpu_policy(xch, domid, &nr_cur, cur, &nr_msrs, NULL);
+ rc = get_domain_cpu_policy(xch, domid, &nr_cur, cur, &nr_msrs, NULL);
if ( rc )
{
PERROR("Failed to obtain d%d current policy", domid);
@@ -340,10 +340,9 @@ static int xc_cpuid_xend_policy(
/* Get the domain type's default policy. */
nr_msrs = 0;
nr_def = nr_leaves;
- rc = xc_get_system_cpu_policy(xch,
- di.hvm ? XEN_SYSCTL_cpu_policy_hvm_default
- : XEN_SYSCTL_cpu_policy_pv_default,
- &nr_def, def, &nr_msrs, NULL);
+ rc = get_system_cpu_policy(xch, di.hvm ? XEN_SYSCTL_cpu_policy_hvm_default
+ : XEN_SYSCTL_cpu_policy_pv_default,
+ &nr_def, def, &nr_msrs, NULL);
if ( rc )
{
PERROR("Failed to obtain %s def policy", di.hvm ? "hvm" : "pv");
@@ -354,8 +353,8 @@ static int xc_cpuid_xend_policy(
/* Get the host policy. */
nr_msrs = 0;
nr_host = nr_leaves;
- rc = xc_get_system_cpu_policy(xch, XEN_SYSCTL_cpu_policy_host,
- &nr_host, host, &nr_msrs, NULL);
+ rc = get_system_cpu_policy(xch, XEN_SYSCTL_cpu_policy_host,
+ &nr_host, host, &nr_msrs, NULL);
if ( rc )
{
PERROR("Failed to obtain host policy");
@@ -486,9 +485,9 @@ int xc_cpuid_apply_policy(xc_interface *xch, uint32_t
domid, bool restore,
/* Get the domain's default policy. */
nr_msrs = 0;
- rc = xc_get_system_cpu_policy(xch, di.hvm ?
XEN_SYSCTL_cpu_policy_hvm_default
- :
XEN_SYSCTL_cpu_policy_pv_default,
- &nr_leaves, leaves, &nr_msrs, NULL);
+ rc = get_system_cpu_policy(xch, di.hvm ? XEN_SYSCTL_cpu_policy_hvm_default
+ : XEN_SYSCTL_cpu_policy_pv_default,
+ &nr_leaves, leaves, &nr_msrs, NULL);
if ( rc )
{
PERROR("Failed to obtain %s default policy", di.hvm ? "hvm" : "pv");
@@ -720,8 +719,8 @@ int xc_cpu_policy_get_system(xc_interface *xch, unsigned
int policy_idx,
unsigned int nr_entries = ARRAY_SIZE(policy->entries);
int rc;
- rc = xc_get_system_cpu_policy(xch, policy_idx, &nr_leaves, policy->leaves,
- &nr_entries, policy->entries);
+ rc = get_system_cpu_policy(xch, policy_idx, &nr_leaves, policy->leaves,
+ &nr_entries, policy->entries);
if ( rc )
{
PERROR("Failed to obtain %u policy", policy_idx);
@@ -745,8 +744,8 @@ int xc_cpu_policy_get_domain(xc_interface *xch, uint32_t
domid,
unsigned int nr_entries = ARRAY_SIZE(policy->entries);
int rc;
- rc = xc_get_domain_cpu_policy(xch, domid, &nr_leaves, policy->leaves,
- &nr_entries, policy->entries);
+ rc = get_domain_cpu_policy(xch, domid, &nr_leaves, policy->leaves,
+ &nr_entries, policy->entries);
if ( rc )
{
PERROR("Failed to obtain domain %u policy", domid);
diff --git a/tools/libs/guest/xg_sr_common_x86.c
b/tools/libs/guest/xg_sr_common_x86.c
index 4982519e05..15265e7a33 100644
--- a/tools/libs/guest/xg_sr_common_x86.c
+++ b/tools/libs/guest/xg_sr_common_x86.c
@@ -48,6 +48,7 @@ int write_x86_cpu_policy_records(struct xc_sr_context *ctx)
struct xc_sr_record cpuid = { .type = REC_TYPE_X86_CPUID_POLICY, };
struct xc_sr_record msrs = { .type = REC_TYPE_X86_MSR_POLICY, };
uint32_t nr_leaves = 0, nr_msrs = 0;
+ xc_cpu_policy_t policy = NULL;
int rc;
if ( xc_cpu_policy_get_size(xch, &nr_leaves, &nr_msrs) < 0 )
@@ -58,20 +59,27 @@ int write_x86_cpu_policy_records(struct xc_sr_context *ctx)
cpuid.data = malloc(nr_leaves * sizeof(xen_cpuid_leaf_t));
msrs.data = malloc(nr_msrs * sizeof(xen_msr_entry_t));
- if ( !cpuid.data || !msrs.data )
+ policy = xc_cpu_policy_init();
+ if ( !cpuid.data || !msrs.data || !policy )
{
ERROR("Cannot allocate memory for CPU Policy");
rc = -1;
goto out;
}
- if ( xc_get_domain_cpu_policy(xch, ctx->domid, &nr_leaves, cpuid.data,
- &nr_msrs, msrs.data) )
+ if ( xc_cpu_policy_get_domain(xch, ctx->domid, policy) )
{
PERROR("Unable to get d%d CPU Policy", ctx->domid);
rc = -1;
goto out;
}
+ if ( xc_cpu_policy_serialise(xch, policy, cpuid.data, &nr_leaves,
+ msrs.data, &nr_msrs) )
+ {
+ PERROR("Unable to serialize d%d CPU Policy", ctx->domid);
+ rc = -1;
+ goto out;
+ }
cpuid.length = nr_leaves * sizeof(xen_cpuid_leaf_t);
if ( cpuid.length )
@@ -94,6 +102,7 @@ int write_x86_cpu_policy_records(struct xc_sr_context *ctx)
out:
free(cpuid.data);
free(msrs.data);
+ xc_cpu_policy_destroy(policy);
return rc;
}
diff --git a/tools/misc/xen-cpuid.c b/tools/misc/xen-cpuid.c
index 027b25ad01..b2a36deacc 100644
--- a/tools/misc/xen-cpuid.c
+++ b/tools/misc/xen-cpuid.c
@@ -468,9 +468,12 @@ int main(int argc, char **argv)
uint32_t i, max_leaves, max_msrs;
xc_interface *xch = xc_interface_open(0, 0, 0);
+ xc_cpu_policy_t policy = xc_cpu_policy_init();
if ( !xch )
err(1, "xc_interface_open");
+ if ( !policy )
+ err(1, "xc_cpu_policy_init");
if ( xc_cpu_policy_get_size(xch, &max_leaves, &max_msrs) )
err(1, "xc_get_cpu_policy_size(...)");
@@ -491,10 +494,11 @@ int main(int argc, char **argv)
uint32_t nr_leaves = max_leaves;
uint32_t nr_msrs = max_msrs;
- if ( xc_get_domain_cpu_policy(xch, domid, &nr_leaves, leaves,
- &nr_msrs, msrs) )
- err(1, "xc_get_domain_cpu_policy(, %d, %d,, %d,)",
- domid, nr_leaves, nr_msrs);
+ if ( xc_cpu_policy_get_domain(xch, domid, policy) )
+ err(1, "xc_cpu_policy_get_domain(, %d, )", domid);
+ if ( xc_cpu_policy_serialise(xch, policy, leaves, &nr_leaves,
+ msrs, &nr_msrs) )
+ err(1, "xc_cpu_policy_serialise");
snprintf(name, sizeof(name), "Domain %d", domid);
print_policy(name, leaves, nr_leaves, msrs, nr_msrs);
@@ -507,8 +511,7 @@ int main(int argc, char **argv)
uint32_t nr_leaves = max_leaves;
uint32_t nr_msrs = max_msrs;
- if ( xc_get_system_cpu_policy(xch, i, &nr_leaves, leaves,
- &nr_msrs, msrs) )
+ if ( xc_cpu_policy_get_system(xch, i, policy) )
{
if ( errno == EOPNOTSUPP )
{
@@ -517,14 +520,18 @@ int main(int argc, char **argv)
continue;
}
- err(1, "xc_get_system_cpu_policy(, %s,,)",
sys_policies[i]);
+ err(1, "xc_cpu_policy_get_system(, %s, )",
sys_policies[i]);
}
+ if ( xc_cpu_policy_serialise(xch, policy, leaves, &nr_leaves,
+ msrs, &nr_msrs) )
+ err(1, "xc_cpu_policy_serialise");
print_policy(sys_policies[i], leaves, nr_leaves,
msrs, nr_msrs);
}
}
+ xc_cpu_policy_destroy(policy);
free(leaves);
free(msrs);
xc_interface_close(xch);
--
generated by git-patchbot for /home/xen/git/xen.git#staging
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